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Электронный компонент: AD1981HD

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HD Audio SoundMAX
Codec
AD1981HD
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
FEATURES
2 DAC channels: 16-, 20-, or 24-bit
2 ADC channels: 16- or 20-bit
HD audio sample rates
8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz
Greater than 90 dB dynamic range
S/PDIF output: 32 kHz, 44.1 kHz or 48 kHz, 16- or 24-bit
Digital beep and analog PC beep pass-through
Integrated headphone amplifiers on two ports
Port retasking
Selectable microphone and line inputs
Full analog mixer
Legacy inputs: CD and auxiliary inputs
External amplifier power-down (EAPD)
48-pin, Pb-free LQFP
ENHANCED FEATURES
No AFILT pins, results in BOM savings
5.0 V AV
DD
supply, 3.3 V DV
DD
supply
Jack-sensing autoconfiguration options
Mute line output and monaural output (MONO_OUT)
when headphones are used
Mute MONO_OUT when a device is in the line out jack
Selectable trip level: high/low supports all jack types
Peripheral identification/enumeration
Jack event/presence detection using SENSE or GPIO pins
Microphone to MONO_OUT for speakerphone applications
Advanced power management modes
4 software-controlled microphone bias pins
Up to 30 dB microphone boost
4 GPIOs--external control or traditional jack sense
FUNCTIONAL BLOCK DIAGRAM
04321-
005
EQ
PCM
-
DAC
S/PDIF_OUT
HD AUDIO INTERFACE
GPIO
GPIO
JACK
SENSE
SENSE
DIGITAL
PC BEEP
GA
G
PC BEEP
GA
GA
GA
GA
GA
GA
SELECTOR
PC BEEP
PCM/FLOAT32
-
ADC
SELECTOR
M
G
PCM/AC3
S/PDIF TX
SELECTOR
SELECTOR
GAM
GAM
HP
SEL
EC
T
O
R
GAM
BOOST
BOOST
MIC
BIAS
HP
Z
Z
SEL
EC
T
O
R
GAM
MIC
BIAS
Z
Z
SEL
EC
T
O
R
BOOST
GAM
MIC
BIAS
Z
Z
SEL
EC
T
O
R
BOOST
MIC
BIAS
Z
CD_
L
CD_
GND
CD_
R
DIFF
AMP
PORT-E
AUX
M
M
MIC_BIAS-C
PORT-C
MONO_OUT
PORT-A
MIC_BIAS-F
PORT-F
MIC_BIAS-D
PORT-D
MIC_BIAS-B
PORT-B
LINE_IN
HEADPHONE
REAR MIC
LINE_OUT
FRONT MIC
RESET
AV
DD
AV
SS
PC BEEP
5V
M
M
M
M
M
M
M
M
Figure 1.
AD1981HD
Rev. 0 | Page 2 of 16
TABLE OF CONTENTS
Functional Block Diagram Details ................................................. 3
Specifications..................................................................................... 4
Absolute Maximum Ratings............................................................ 7
Environmental Conditions.......................................................... 7
ESD Caution.................................................................................. 7
Pin Configuration and Function Descriptions............................. 8
HD Audio Codec Information ..................................................... 10
Jack Presence Detection................................................................. 15
HD Audio Style Jack Presence Detection ............................... 15
Classic Jack Presence Detection ............................................... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 16
REVISION HISTORY
6/05--Initial Version: Revision 0
AD1981HD
Rev. 0 | Page 3 of 16
FUNCTIONAL BLOCK DIAGRAM DETAILS
EQ
48kH
z, 24-B
I
T
PC
M
-
DAC
S/PD
IF_O
U
T
NI
D:
0
A
3.3V
HD AUDIO I
NTERFACE
GP
I
O_
3
GP
I
O_
2
G
P
IO
_1/JS_0
G
P
IO
_0/JS_1
NI
D:
0
1
GP
I
O
J
ACK
SEN
SE
SEN
SE_A
/
SR
C
_
B
SEN
SE_B
/
SR
C
_
A
S
DAT
A_
I
N
S
DAT
A_
OUT
SYN
C
R
ESET
BI
T
_
CL
K
DV
DD
DV
SS
M
DI
GI
T
AL
PC
B
EEP
34.
5T
O+
12d
B
NI
D:
0
E
NI
D:
1
1
GA
M
34.
5T
O+
12dB
M
M
M
0dB
TO

45dB
G
M
M
M
PC
B
EEP
NI
D:
1
A
GA
GA
NI
D:
1
B
GA
NI
D:
1
3
GA
NI
D:
1
C
GA
NI
D:
1
2
GA
NI
D:
1
D
SELECTOR
2:1
NI
D:
1
0
PC
B
EEP IN
NI
D:
1
6
NI
D:
0
D
48kH
z, 20-B
I
T
PC
M
/
FLO
A
T32
-
ADC
0dB
TO
22.5dB
SELECTOR
8:1
NI
D:
0
4
NI
D:
1
5
M
G
NI
D:
0
9
SELECTOR
2:1
BOOS
T
MI
C
BI
AS
GAM
Z
Z
BI
AS
_
E
N
MI
C_
BI
AS
-
C
PO
R
T
-C
LIN
E
_IN
OUT
P
UT
_
E
N
O
U
TPU
T_EN
0dB
,
10dB
,
20dB
,
30dB
46.5dB
TO
+
3
dB
NI
D:
0
7
SELECTOR
2:1
GAM
GAM
HP
MONO_
OUT
PO
R
T
-A
HE
ADP
HONE
HP
_
E
N

46.5dB
TO
+
3
dB
NI
D:
1
8
SELECTOR
2:1
BOOS
T
MI
C
BI
AS
GAM
Z
Z
BI
AS
_
E
N
MI
C_
BI
AS
-
F
PO
R
T
-F
RE
AR MI
C
OUT
P
UT
_
E
N
O
U
TPU
T_EN
0dB
,
10dB
,
20dB
,
30dB

46.5dB
TO
+
3
dB
NI
D:
0
5
SELECTOR
2:1
BOOS
T
MI
C
BI
AS
GAM
HP
Z
Z
BI
AS
_
E
N
MI
C_
BI
AS
-
D
PO
R
T
-D
L
I
NE
_
OUT
HP
_
E
N
O
U
TPU
T_EN
0dB
,
10dB
,
20dB
,
30dB
46.5dB
TO
+
3
dB
NI
D:
0
8
BOOS
T
MI
C
BI
AS
Z
BI
AS
_
E
N
MI
C_
BI
AS
-
B
PO
R
T
-B
FR
O
N
T M
I
C
0dB
,
10dB
,
20dB
,
30dB
BI
AS
_
S
E
L
RE
S
E
T
NI
D:
0
6
NI
D:
0
F
AV
DD
AV
SS
PC
B
E
EP
5V
NI
D:
0
2
48kH
z, 24-B
I
T
P
C
M/
AC3
S/PD
IF TX
NI
D:
0
3
SELECTOR
2:1
NI
D:
0
B
SELECTOR
6:1
CD_L
CD_GND
CD_R
CD
DI
F
F
AMP
PORT-E
AUX
NI
D:
1
9
NID:
17
NI
D:
0
C
NI
D:
1
E
NI
D:
1
F
46.5dB
TO
+
3dB
M
M
OUT
P
UT
_
E
N
BI
AS
_
S
E
L
BI
AS
_
S
E
L
BI
AS
_
S
E
L
04321-001
Figure 2.
AD1981HD
Rev. 0 | Page 4 of 16
SPECIFICATIONS
Test conditions, unless otherwise noted.
Table 1. Test Conditions
Parameter
Typ Unit
TEMPERATURE
25 C
DIGITAL SUPPLY (DV
DD
)
3.3 10%
V
ANALOG SUPPLY (AV
DD
)
5.0 10%
V
SAMPLE RATE (F
S
)
48 kHz
INPUT SIGNAL
1.0 kHz
ANALOG OUTPUT PASS BAND
20 to 20,000
Hz
V
IH
2.0 V
V
IL
0.8 V
V
IH
2.4 V
V
IL
0.6 V
DAC Test Conditions
Calibrated
Output -3 dB relative to full scale
10 k output load, Ports C, D, F, and mono
32 output load, Port A
ADC Test Conditions
Calibrated
0 dB PGA gain
Input -3.0 dB relative to full scale
Input sourced on Port B, 0 dB boost
Table 2. Analog Input
Parameter
Min
Typ
Max
Unit
PORTS B, C, D, E: 0 dB
1
V rms
1
2.83
V
p-p
PORTS B, C, D, E: 30 dB
0.032
V rms
0.089
V
p-p
PORTS B, C, D, E: 20 dB
0.1
V rms
0.283
V
p-p
PORTS B, C, D, E: 10 dB
0.316
V
rms
0.894
V
p-p
PORT F, CD IN
1
V rms
2.83
V
p-p
INPUT IMPEDANCE
2
20
k
INPUT CAPACITANCE
5
7.5
pF
1
RMS values assume sine wave input.
2
Guaranteed by design; not production tested.
Table 3. Master Volume
Parameter
Min
Typ
Max
Unit
STEP SIZE (Ports A, B, C, D, E, MONO_OUT)
1.5
dB
OUTPUT GAIN RANGE
46.5
+3
dB
MUTE ATTENUATION OF 0 dB FUNDAMENTAL
80
dB
1
Guaranteed by design; not production tested.
AD1981HD
Rev. 0 | Page 5 of 16
Table 4. Programmable Gain Amplifier--ADC
Parameter
Min
Typ
Max
Unit
STEP SIZE
1.5
dB
PGA GAIN RANGE SPAN
0.0
22.5
dB
Table 5. Analog Mixer--Input Gain/Amplifiers/Attenuators
Parameter
Min
Typ
Max
Unit
SIGNAL-TO-NOISE RATIO (SNR)
Line In to Line Out
85
dB
Microphone In to Line Out
1
80
dB
STEP SIZE: ALL MIXER INPUTS (Except PC BEEP)
1.5
dB
STEP SIZE: PC BEEP
3.0
dB
INPUT GAIN RANGE: ALL MIXER INPUTS (Except PC BEEP)
-34.5
+12.0
dB
DIGITAL PC BEEP
-45.0
0.0
dB
1
Guaranteed by design; not production tested.
Table 6. Digital Decimation and Interpolation Filters
1
Parameter
Min
Typ
Max
Unit
PASS BAND
0
0.4 F
S
Hz
PASS-BAND RIPPLE
0.09
dB
TRANSITION BAND
0.4 F
S
0.6 F
S
Hz
STOP BAND
0.6 F
S
Hz
STOP-BAND REJECTION
-74
dB
GROUP DELAY
16/F
S
sec
GROUP DELAY VARIATION OVER PASS BAND
0
s
1
Guaranteed by design; not production tested.
Table 7. Analog-to-Digital Converters
Parameter Min
Typ
Max
Unit
RESOLUTION
20
Bits
TOTAL HARMONIC DISTORTION (THD)
-95
dB
DYNAMIC RANGE (-60 dB Input, THD + N Referenced to Full Scale, A-Weighted)
-85
dB
CROSSTALK: LINE INPUTS (Input L, Ground R, Read R; Input R, Ground L, Read L)
-80
dB
CROSSTALK: LINE INPUTS AND OTHER INPUTS
-100
-80
dB
GAIN ERROR (Full-Scale Span Relative to Nominal Input Voltage)
10
%
INTERCHANNEL GAIN MISMATCH (Difference of Gain Errors)
0.5
dB
ADC OFFSET ERROR
5
mV
Table 8. Digital-to-Analog Converters
Parameter Min
Typ
Max
Unit
RESOLUTION
24
Bits
TOTAL HARMONIC DISTORTION (Line Out)
-92
dB
TOTAL HARMONIC DISTORTION (Headphone Out)
-75
dB
DYNAMIC RANGE (-60 dB Input, THD + N Referenced to Full Scale, A-Weighted)
90
dB
GAIN ERROR (Full-Scale Span Relative to Nominal Input Voltage)
10
%
INTERCHANNEL GAIN MISMATCH (Difference of Gain Errors)
0.7
dB
DAC CROSSTALK
1
(Input L, Zero R, Read R Out; Input R, Zero L, Read L Out)
-80
dB
1
Guaranteed by design; not production tested.
AD1981HD
Rev. 0 | Page 6 of 16
Table 9. Analog Output
Parameter
Min
Typ
Max
Unit
FULL-SCALE OUTPUT VOLTAGE (Headphone Disabled)
1
V rms
2.83
V
p-p
Output Impedance
1
300
External Load Impedance
10
k
Output Capacitance
15
pF
External Load Capacitance
1000
pF
FULL-SCALE OUTPUT VOLTAGE (Headphone Out)
1
V rms
2.83
V
p-p
Output Impedance
1
External Load Impedance
32
Output Capacitance
15
pF
External Load Capacitance
1000
pF
VREF_FILT
2.050 2.250
2.450
V
MIC_BIAS (Ports B, C, D)
2.250
V
(xVREF [2:0] = 100, A
VDD
= 5.0 V)
3.700
V
(xVREF [2:0] = 010)
0.0
V
Current Drive
5
mA
MUTE CLICK (MUTED OUTPUT, UNMUTED MIDSCALE DAC OUTPUT)
5
mV
1
Guaranteed by design; not production tested.
Table 10. Static Digital Specifications
Parameter
Min
Typ
Max
Unit
HIGH LEVEL INPUT VOLTAGE (V
IH
), DIGITAL INPUTS
0.65 DV
DD
V
LOW LEVEL INPUT VOLTAGE (V
IL
)
0.35 DV
DD
V
HIGH LEVEL OUTPUT VOLTAGE (V
OH
), I
OH
= 2 mA
0.90 DV
DD
V
LOW LEVEL OUTPUT VOLTAGE (V
OL
), I
OL
= 2 mA
0.10 DV
DD
V
INPUT LEAKAGE CURRENT
-10
+10
A
OUTPUT LEAKAGE CURRENT
-10
+10
A
INPUT/OUTPUT PIN CAPACITANCE
7.5
pF
Table 11. Power Supply
Parameter
Min
Typ
Max
Unit
POWER SUPPLY RANGE--ANALOG (AV
DD
) 10%
4.5
5.5
V
POWER SUPPLY RANGE--DIGITAL (DV
DD
) 10%
2.97
3.63
V
POWER DISSIPATION--ANALOG (AV
DD
)/DIGITAL (DV
DD
)
275/132
mW
ANALOG SUPPLY CURRENT--ANALOG (AV
DD
)
43
mA
DIGITAL SUPPLY CURRENT--DIGITAL (DV
DD
)
40
mA
POWER SUPPLY REJECTION (100 mV p-p Signal @ 1 kHz)
40
dB
Table 12. D3 Power-Down Savings
Parameter
DV
DD
AV
DD
Unit
FUNCTION
NODE
0.5 0.0 mA
DAC
6.2 9.0 mA
ADC
8.0 8.0 mA
MIXER
0.0 15 mA
AD1981HD
Rev. 0 | Page 7 of 16
ABSOLUTE MAXIMUM RATINGS
Table 13.
Power Supply
Min
Max
Unit
Digital (DV
DD
)
-0.3
+3.6
V
Analog (AV
DD
)
-0.3
+6.0
V
Input Current (Except Supply Pins)
10.0
mA
Analog Input Voltage (Signal Pins)
-0.3
AV
DD
+ 0.3
V
Digital Input Voltage (Signal Pins)
-0.3
DV
DD
+ 0.3
V
Ambient Temperature (Operating)
Commercial 0C
70C
C
Industrial 40C
+85C
C
Storage Temperature
-65C
+150C
C
Stresses greater than those listed under Absolute Maximum
Ratings may cause permanent damage to the device. This is a
stress rating only; functional operation of the device at these or
any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ENVIRONMENTAL CONDITIONS
Ambient Temperature Rating
T
AMB
= T
CASE
- (PD
CA
)
where:
T
CASE
is the case temperature in C
PD is the power dissipation in W
CA
is the thermal resistance (case-to-ambient)
Table 14. Thermal Resistance
Package
JA
1
JC
2
CA
LQFP 76.2C/W
17C/W
59.2C/W
1
JA
is the thermal resistance (junction-to-ambient).
2
JC
is the thermal resistance (junction-to-case).
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
AD1981HD
Rev. 0 | Page 8 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
48
S/PD
IF_OU
T
47
EA
PD
46
NC
45
NC
44
GPIO_1/JS_
0
43
GPIO_0/JS_1
42
AV
SS
41
POR
T
-
A
_R
40
NC
39
POR
T
-
A
_L
38
AV
DD
37
MONO_
O
UT
35
PORT-D_L
34
SENSE_B/SRC_A
33
NC
30
MIC_BIAS-F
31
NC
32
MIC_BIAS-D
36
PORT-D_R
29
MIC_BIAS-C
28
MIC_BIAS-B
27
VREF_FILT
25
AV
DD
26
AV
SS
2
GPIO_2
3
GPIO_3
4
DV
SS
7
DV
SS
6
BIT_CLK
5
SDATA_OUT
1
DV
DD
8
SDATA_IN
9
DV
DD
10
SYNC
12
PC BEEP
11
RESET
NC = NO CONNECT
13
SEN
SE_A
/
SR
C
_
B
14
POR
T
-
E_L
15
POR
T
-
E_R
16
POR
T
-
F
_L
17
POR
T
-
F
_R
18
CD_
L
19
CD_
GND
20
CD_
R
21
POR
T
-
B
_L
22
POR
T
-
B
_R
23
POR
T
-
C
_L
24
POR
T
-
C
_R
PIN 1
AD1981HD
TOP VIEW
(Not to Scale)
04321-002
Figure 3. Pin Configuration
Table 15. Pin Function Descriptions
Mnemonic Pin
No.
I/O Description
SDATA_OUT
5
I
HD Audio Link Serial Data Output. Codec input stream.
BIT_CLK
6
I
HD Audio Link Bit Clock Input. 24 MHz.
SDATA_IN
8
I/O
HD Audio Link Serial Data Input. Codec output stream.
SYNC
10
I
HD Audio Link Frame Sync.
RESET#
11
I
HD Audio Link Reset. Master hardware reset.
Table 16. Digital Input/Output Pin Function Descriptions
Mnemonic Pin
No.
I/O
Description
GPIO_2 2 I/O
General-Purpose
Input/Output. Digital signal used to sense/control external circuits.
GPIO_3 3 I/O
General-Purpose
Input/Output. Digital signal used to sense/control external circuits.
GPIO_0/JS_1 43
I/O
GPIO_0--General-Purpose Input/Output. Digital signal used to sense/control external circuits.
JS_1--Classic (DC) Jack Sense for Headphone Out Pins. Low indicates that nothing is plugged
into the jack; high indicates that a peripheral is plugged into the jack.
GPIO_1/JS_0 44
I/O
GPIO_1--General-Purpose Input/Output. Digital signal used to sense/control external circuits
JS_0--Classic (DC) Jack Sense for Line Out Pins. Low indicates that nothing is plugged into the
jack; high indicates that a peripheral is plugged into the jack.
SENSE_A/SRC_B
13
I/O
SENSE_A--Jack Sense AD Input. For use with isolated switches on audio jacks.
1
SENSE_B/SRC_A
34
I/O
SENSE_B--Jack Sense EF Input. For use with isolated switches on audio jacks.
1
EAPD
47
O
External Amplifier Power-Down Output.
S/PDIF_OUT 48
O S/PDIF
Output.
1
To reduce SENSE_A/B static current draw, connect a single 2.69 k resistor between Pins 13 and 34. Remove the resistors from Pins 33 and 13 to AV
DD
.
AD1981HD
Rev. 0 | Page 9 of 16
Table 17. Analog Input/Output Pin Function Descriptions
Mnemonic Pin
No.
I/O
Channel
Description
Function
1
PC Beep
12
I
N/A
Analog Input for PC Beep Pass-Through, Even While in Reset.
LI
PORT-E_L 14 I
Left Line
Input
(Typically Auxiliary Input).
PORT-E_R
15
I
Right
Line Input (Typically Auxiliary Input).
LI
PORT-F_L
16
I/O
Left
Multifunction Analog I/O Jack (Typically Rear Microphone).
MIC, LI, LO
PORT-F_R
17
I/O
Right
Multifunction Analog I/O Jack (Typically Rear Microphone).
MIC, LI, LO
CD_L
18
I
Left
CD Input, Left Channel.
LI
CD_GND
19
I
Ground
CD Input, Ground.
LI
CD_R
20
I
Right
CD Input, Right Channel.
LI
PORT-B _L
21
I
Left
Multifunction Analog I/O Jack (Typically Front Microphone).
MIC, LI
PORT-B_R
22
I
Right
Multifunction Analog I/O Jack (Typically Front Microphone).
MIC, LI
PORT-C_L
23
I/O
Left
Multifunction Analog I/O Jack (Typically Rear Line Input).
MIC, LI, LO
PORT-C_R
24
I/O
Right
Multifunction Analog I/O Jack (Typically Rear Line Input).
MIC, LI, LO
PORT-D_L 35 I/O
Left Multifunction Analog I/O Jack (Typically Rear Line Output).
MIC, LI, LO
PORT-D_R
36
I/O
Right
Multifunction Analog I/O Jack (Typically Rear Line Output).
MIC, LI, LO
MONO_OUT
37
O
-
Monaural Output to Telephony Subsystem Speakerphone.
LO
PORT-A_L
39
O
Left
Headphone Output, Left Channel.
LO, HP
PORT-A_R
41
O
Right
Headphone Output, Right Channel.
LO, HP
1
MIC--Microphone capable, includes programmable MIC_BIAS pins and integrated boost amplifier; LI--line level analog inputs; LO-- line level analog outputs;
HP--headphone support, includes integrated headphone amplifier.
Table 18. Filter/Reference Pin Function Descriptions
Mnemonic Pin
No.
I/O
Description
VREF_FILT
27
O
Voltage Reference Filter.
MIC_BIAS-B
28
O
Programmable Microphone Bias Output. Intended for connection to Port B.
MIC_BIAS-C
29
O
Programmable Microphone Bias Output. Intended for connection to Port C.
MIC_BIAS-F
30
O
Programmable Microphone Bias Output. Intended for connection to Port F.
MIC_BIAS-D
32
O
Programmable Microphone Bias Output. Intended for connection to Port D.
Table 19. Power and Ground Pin Function Descriptions
Mnemonic Pin
No.
I/O
Description
DV
SS
4, 7
I
Digital Supply Return (Ground).
DV
DD
1, 9
I
Digital Supply Voltage (3.3 V).
AV
SS
26, 42
I
Analog Supply Return (Ground).
AV
DD
25, 38
I
Analog Supply Voltage (5.0 V).
AV
DD
supplies should be well filtered because supply noise degrades audio performance.
AD1981HD
Rev. 0 | Page 10 of 16
HD AUDIO CODEC INFORMATION
Table 20. Widget List and Descriptions
NID Name
Type
ID Type
Description
00 ROOT
x
Root
Device
identification.
01
FUNCTION
x
Function
Designates this device as an audio codec.
02
S/PDIF
0
Audio output
Designates the codec S/PDIF digital stream output interface.
03
Front DAC
0
Audio output
Designates the playback channel digital/audio converters.
04
Record ADC
1
Audio input
Designates the record channel audio/digital converters.
05
Port-D (Line Out)
4
Pin complex
Port-D pin drivers. Typically used as rear panel line output.
06
Port-A (Headphone Out)
4
Pin complex
Port-A pin drivers. Typically used as front panel headphone output.
07 MONO_OUT
4
Pin
complex Monaural output pin driver. Typically used to drive an internal
speaker or as a microphone selector on a telephony system.
08
Port-B (Front Microphone)
4
Pin complex
Port-B pin drivers. Typically used as front panel microphone.
09
Port-C (Line In)
4
Pin complex
Port-C pin drivers. Typically used as rear panel line input.
0A
S/PDIF_OUT
4
Pin complex
S/PDIF output digital interface.
0B
Monaural Selector
3
Audio selector
Chooses which signals drive the monaural output mixer and pin.
0C
Microphone Mixer
2
Audio mixer
Allows selective mixing of the front/rear microphone sources to a
single combined signal.
0D
PC Beep Selector
3
Audio selector
Selects between the digital beep generator and the analog PC BEEP pin
as the source for the analog mixer.
0E
Analog Mixer
2
Audio mixer
Selectively mixes analog input signals into a single signal.
0F
Monaural Mixer
2
Audio mixer
Stereo-to-monaural mixer for MONO_OUT.
10
Digital PC Beep
7
Beep generator
Digital PC beep generator.
11
Front Mix Amp
3
Audio selector
Individual gain control for the DAC (front) input to the Analog Mixer.
12
Port-B Mix Amp
3
Audio selector
Individual gain control for the Port-B (front microphone) input to the
analog mixer.
13
Port-C Mix Amp
3
Audio selector
Individual gain control for the Port-C (line in) input to the analog
mixer.
14
Analog Power-Down
5
Power widget
Power control on the analog mixer and associated amplifiers.
15
Record Selector
3
Audio selector
Chooses which signal is recorded by the record ADC. Also contains
the record gain controls.
16
PC Beep In
4
Pin complex
Analog PC Beep in pin drivers. This signal is coupled to the outputs
while the codec is held in reset. This may be selected as an input to
the analog mixer after reset has been released.
17
Port-E (Aux In)
4
Pin complex
Port-E pin drivers. Typically used as auxiliary input.
18
Port-F (Rear Microphone)
4
Pin complex
Port-F pin drivers. Typically used as rear panel microphone.
19
CD In
4
Pin complex
CD in pin drivers.
1A
Port-D Mix Amp
3
Audio selector
Individual gain control for the Port D (front) input to the analog
mixer.
1B
Port-E Mix Amp
3
Audio selector
Individual gain control for the Port E (aux) input to the analog mixer.
1C
Port-F Mix Amp
3
Audio selector
Individual gain control for the Port F (rear microphone) input to the
analog mixer.
1D
CD Mix Amp
3
Audio selector
Individual gain control for the CD input to the analog mixer.
1E
Front Microphone Mute
3
Audio selector
Mute control for Port B (front microphone) into microphone mixer.
1F
Rear Microphone Mute
3
Audio selector
Mute control for Port F (rear microphone) into the microphone mixer.
AD1981HD
Rev. 0 | Page 11 of 16
Table 21. Root and Function Node Parameters
NID Name
Type
ID
Vendor ID
PID 00
1
Revision ID
PID 02
Sub Node Count
PID 04
Function Group Type
PID 05
Audio F.G. Caps
PID 08
GPIO Caps
PID 11
00 ROOT
X
11D41981 00100200 00010001
01 FUNCTION
X
0002001E
00000001
00010C0C
40000004
1
PID = parameter ID.
Table 22. Widget Parameters
Widget
Caps
PCM Size,
Rate
Stream
Format
Pin
Caps
Input
Amp
Caps
Con. List
Len
Power
States
Processing
Caps
Output
Amp Caps
Vendor-
Specific
NID Name
PID 09
1
PID 0A
PID 0B
PID 0C
PID 0D
PID 0E
PID 0F
PID 10
PID 12
PID F0
00
ROOT
01
FUNCTION
000E007F
00000001 00270300 00000009
80053F3D
00000004
02
S/PDIF
00030311
00020060
00000005 00000002
03 Front
DAC
00000441 000E007F 00000001
00000000 00000009
00004601
00000010
04 Record
ADC
00100511 0006007F 00000001
00000001 00000009
05
Port-D (Line Out)
00400187
0001173F 00270300 00000002
80053F3D
00000008
06
Port-A (Headphone Out)
00400185
0000001F 00000002
80053F3D
00000008
07
MONO_OUT 00400104
00000010 00000001
80053F3D
08
Port-B (Front Microphone)
00400083
00001727 00270300 00000000
00000008
09
Port-C (Line In)
00400187
00001737 00270300 00000002
80053F3D
00000008
0A
S/PDIF_OUT 00400301
00000010 00000001
0B
Monaural
Selector
00300101
00000006
0C
Microphone
Mixer
00200101
00000002
0D
PC
Beep
Selector
0030010C
00000002
800B0F0F
0E
Analog
Mixer 00200101
00000008
0F
Monaural
Mixer
00200100
00000001
10
Digital
PC
Beep
00700000
00000000
11
Front
Mix
Amp
0030010D
00000001
80051F17
12
Port-B
Mix
Amp
0030010D
00000001
80051F17
13
Port-C
Mix
Amp
0030010D
00000001
80051F17
14
Analog
Power-Down
00500500
00000006 00000009
15
Record
Selector
0030010D
00000008
80050F00
16
PC
Beep
In
00400000
00000020 00000000
17
Port-E
(Aux
In) 00400081
00000027 00000000
00000008
18
Port-F (Rear Microphone)
00400187
00001737 00270300 00000002
80053F3D
00000008
19
CD
In
00400001
00000020 00000000
1A
Port-D
Mix
Amp
0030010D
00000001
80051F17
1B
Port-E
Mix
Amp
0030010D
00000001
80051F17
1C
Port-F
Mix
Amp
0030010D
00000001
80051F17
1D
CD
Mix
Amp 0030010D
00000001
80051F17
1E
Front Microphone Mute
0030010D
00000001
80000000
1F
Rear Microphone Mute
0030010D
00000001
80000000
1
PID = parameter ID.
Default SSID: BFD10000
AD1981HD
Rev. 0 | Page 12 of 16
Table 23. Default Configuration Parameters
31 29
27
23 19 15
8
7 3
30 28
24
20 16 12
8
4 0
Location
Misc.
Node ID Name
Value
Connector
Chassis Position Def. Device Conn. Type Color
Ovrrd. Def. Assn.
Sequence
05
Port-D (Line Out)
01014010 Jack
External Rear
Line Out
1/8" Jack
Green
0
1
0
06 Port-A
(HP
Out)
0221401F
Jack External Front
HP Out
1/8" Jack
Green
0
1
F
07 Mono
Out
90130130
Fixed Internal
N/A Speaker ATAPI unknown
1 3
0
08
Port-B (Front MIC)
02A19040 Jack
External Front
Mic In
1/8" Jack
Pink
0
4
0
09
Port-C (Line In)
01813041 Jack
External Rear
Line In
1/8" Jack
Blue
0
4
1
0A
S/PDIF Out
01451020 Jack
External Rear
SPDIF Out
Optical
Black
0
2
0
16
PC Beep In
90F30150 Fixed
Internal N/A
other
ATAPI
unknown 1
5
0
17
Port-E (Aux In)
99930144 Fixed
Internal Special 3 AUX
ATAPI
unknown 1
4
4
18
Port-F (Rear MIC)
01A19043 Jack
External Rear
Mic In
1/8" Jack
Pink
0
4
3
19 CD
In
99330142
Fixed Internal
Special
3
CD
ATAPI unknown
1 4
2
Table 24. Widget Connection List
Index
0 1 2 3 4
5 6 7 8
9
NID Name
NID NID NID NID NID NID
NID
NID NID
NID
2
S/PDIF
01
04
3
Front DAC
4
Record
ADC
15
5
Port-D
(Line
Out)
03
0E
6
Port-A
(Headphone
Out)
03
0E
7
MONO_OUT
0F
8
Port-B
(Front
Microphone)
9
Port-C
(Line
In)
03
0E
0A
S/PDIF_OUT
02
0B Monaural
Selector
03 0C 09 0E 05
18
0C
Microphone
Mixer
1E
1F
0D
PC
Beep
Selector
10
16
0E Analog
Mixer
0D 11 12 13 1A
1B 1C 1D
0F
Monaural Mixer
0B
10
Digital PC Beep
11
Front
Mix
Amp
03
12
Port-B
Mix
Amp
08
13
Port-C
Mix
Amp
09
14
Analog Power-Down
0D
0E
10
11
12
13
1A
1B
1C
1D
15 Record
Selector
0C 09 0E 0F 19
05 18 17
16
PC Beep In
17
Port-E (Aux In)
18
Port-F
(Rear
Microphone)
03
0E
19
CD In
1A
Port-D
Mix
Amp
05
1B
Port-E
Mix
Amp
17
1C
Port-F
Mix
Amp
18
1D
CD
Mix
Amp
19
1E
Front
Microphone
Mute
08
1F
Rear
Microphone
Mute
18
AD1981HD
Rev. 0 | Page 13 of 16
Table 25. Widget Verb Support
ST
REAM
FO
RM
AT
AMPLIF
IER
GAIN/MUT
E
PROCESSING
COEFF
ICIENT
COF
FICI
EN
TI
NDEX
PARAME
TER
CONNECT
ION
SELECT
CONNE
CTIO
NL
IS
T
ENTRY
PROCESSING
STATE
SDATA_
IN
SELECT
POWER STATE
CHANNE
L/
ST
REAM
ID
PINW
ID
GE
T
CONTROL
UNSOLICIT
ED
ENABLE
PIN SENSE
BEEP GENE
RATOR
EAPD/BTL
ENABLE
DIGITA
L
CONV
ER
TE
R1
DIGITA
L
CONV
ER
TE
R2
G
E
T
0x
A
xx
0xB
XX
0xC
xx
0xD
xx
0xF00
0xF01
0xF02
0xF03
0xF04
0xF05
0xF06
0xF07
0xF08
0xF09
0xF0A
0xF0C
0xF0D
NID
NA
ME
TY
PE
ID
SET
0x2
xx
0x3
xx
0x4
xx
0x5
xx
-
-
-
0x7
01
-
-
-
0x7
03
0x7
04
0x7
05
0x7
06
0x7
07
0x7
08
0x7
09
0x7
0
A
0x7
0C
0x7
0D
0x7
0E
00
O
T
X
Y
RO
0
1
F
UNCT
ION
X
22
Y
1
Y
02
S/PDIF
0
Y
Y
1
03
FR
O
N
T
D
A
C
0
Y
Y
Y
Y
Y
1
YY
0
4
RECORD
A
D
C
1
Y
Y
Y
1
YY
05
P
O
RT-D
(L
INE
O
UT
)
4
Y
YY
Y
Y
YY
Y
0
6
4
Y
Y
YY
YYY
07
4
Y
Y
Y
Y
0
8
4
Y
Y
YYY
0
9
P
O
RT-C
(L
INE
I
N)
4
Y
Y
Y
Y
Y
Y
Y
0
A
S/PD
IF_OUT
4
Y
Y
Y
0B
3
Y
Y
Y
0C
MI
CROPH
ONE
M
I
X
E
R
2Y
Y
0D
PC
BEEP
SELECTOR
3
Y
Y
Y
Y
0E
E
R
2
Y
Y
AN
AL
O
G
M
I
X
0F
2
Y
Y
10
DIGIT
A
L PC BEEP
7
Y
Y
11
FR
O
N
T
M
I
X
A
M
P
3
Y
Y
Y
1
2
P
O
R
T
-B
MI
X
A
MP
3
Y
Y
Y
1
3
P
O
R
T
-C
MI
X
A
MP
3
Y
Y
Y
14
AN
AL
OG
PO
W
E
R-
DO
WN
5
Y
Y
Y
1
5
RECORD
SE
L
E
CT
OR
3
Y
Y
Y
Y
16
PC
BEEP
IN
4
Y
Y
17
PO
RT
-E
(
A
UX
IN)
4
Y
YYY
1
8
4
Y
Y
YY
YYY
19
C
D
I
N
4
Y
Y
1
A
P
O
R
T
-D
MI
X
A
MP
3
Y
Y
Y
1B
PO
RT-
E
MI
X
A
M
P
3
Y
Y
Y
1C
PO
RT-
F
M
I
X
A
MP
3
Y
Y
Y
1D
3
Y
Y
Y
1E
FR
O
N
T
MICROPHONE MUTE
3Y
Y
Y
1F
REAR MICROPHONE MUTE
3Y
Y
Y
1
UNS
UPPORTED IN T
H
E
A
D1981
HD. G
E
T
V
E
R
B
A
LW
A
YS RE
T
URNS 0;
SE
T VERBS IG
NO
RE
D.
2
SUPPO
RTS
A
DI SPECIFIC FUNCTIO
N
A
L
I
T
Y
.
REFER TO
THE
AD1981HD PRO
G
RAMMER'
S MANUAL FO
R MO
RE INFO
RMATIO
N.
04321-003
CD M
I
X AM
P
PORT-
A
(HEADPHONE OUT
)
M
O
NO_
O
UT
PORT-
B
(F
RONT
M
ICROPHONE)
M
O
NAURAL
SELECTOR
M
O
NAURAL
M
I
XER
PORT-
F
(REAR M
I
CROPHONE)
Y
Y
Y
Y
Y
AD1981HD
Rev. 0 | Page 14 of 16
Table 26. Widget Extended Verb Support
GP
IDAT
A
GPI WAKE
ENABLE
GPI
UN
SO
LIC
ITE
D
MASK
GPI STICKY MASK
GP
ODAT
A
GPIO
DA
TA
GP
IO
EN
ABLE
GP
IO
DIRE
CT
IO
N
GPIO WAKE MASK
GPIO UNSOLICITED
MASK
GPIO
ST
IC
KY
MASK
CONF
IG
DEF
BYTE 1 (
07:00)
CONF
IG
DEF
BYTE 2 (
15:08
CONF
IG
DEF
BYTE 3 (
23:16)
CONF
IG
DEF
BYTE 4 (
31:24)
SUB
SYSTEM ID
BYTE 1 (
07:00)
SUB
SYSTEM ID
BYTE 2 (
15:08)
SUB
SYSTEM ID
BYTE 3 (
23:16)
SUB
SYSTEM ID
BYTE 4 (
31:24)
RESET
GET
0xF10
0xF11
0xF12
0xF13
0xF14
0xF15
0xF16
0xF17
0xF
18
0xF19
0xF1
A
0xF1C
0xF20
---
NID
NA
ME
TY
PE
ID
SET
0x7
10
0x7
11
0x7
12
0x7
13
0x7
14
0x7
15
0x7
16
0x7
17
0x7
18
0x7
19
0x7
1
A
0x7
1C
0x7
1D
0x7
1E
0x7
1F
0x7
20
0x7
21
0x7
22
0x7
23
0x7FF
0
1
FUNCTION
X
Y
Y
Y
1
Y
1
YYY
YY
0
5
P
O
RT
-D
(L
I
NE
O
UT)
4
YYY
Y
06
4
YYY
Y
07
4
YYY
Y
08
4
YY
Y
Y
0
9
P
O
RT
-C
(L
I
N
E
I
N)
4
YYY
Y
0A
4
YY
Y
Y
16
PC
B
EEP
IN
4
YY
Y
Y
1
7
P
O
RT
-E
(
A
UX
IN)
4
YYY
Y
18
4
YYY
Y
19
C
D
IN
4
YYY
Y
1
UNS
UPP
O
RTED IN T
H
E
A
D
1981HD. GET
VERB
A
LW
A
YS RET
URNS 0; SET VERBS IGNORED.
04321-004
S/PD
IF_OU
T
POR
T
-
A
(HE
ADP
HONE
OUT)
MONO_
O
UT
POR
T
-
B
(FRONTMICROP
H
ONE
)
POR
T
-
F
(RE
AR MICROP
H
ONE
)
AD1981HD
Rev. 0 | Page 15 of 16
JACK PRESENCE DETECTION
HD AUDIO STYLE JACK PRESENCE DETECTION
The AD1981HD uses two jack sense lines for jack presence
detection. Combined with the peripheral enumeration engines,
this enables software to determine if there is a device plugged
into the circuit and what type of device it is. Software can also
reconfigure jacks and amplifiers as necessary, ensuring proper
audio operation and providing jack retasking.
Jack presence is detected using a resistor tree arrangement
outlined in the HD audio specification. Up to four jacks can be
sensed on a single sense line by using different value resistors
for each jack between the sense line and ground (AV
SS
). Jacks
must normally have open, isolated switches to use this method
of jack presence detection.
Jack presence is reflected in the HD audio pin widget pin sense
verb. The MSB (Bit 31) indicates the current plugged state of the
connected jack. Jack change interrupts can be enabled using the
unsolicited response verb on each of these nodes. Each jack can
be set to generate a different value to provide event
identification within the software interrupt.
There are two methods to connect the codec to the jack
presence detection pins. In the first method, use a single
2.69 k 1% resistor between the SENSE_A and SENSE_B lines,
but no capacitor. In the second method use a single 2.69 k
resister between SENSE_A and AV
DD
and between SENSE_B
and AV
DD
. In the second method, the designer can add up to
1 F of capacitance on each sense line. Designers should offer
both methods for maximum flexibility.
The specific resistor value for each jack is shown in Table 27.
Use 1% resistors for all jack presence detect circuitry to ensure
accurate detection.
CLASSIC JACK PRESENCE DETECTION
The AD1981HD GPIO pins can be used as classic jack sense
pins in JS_0- and JS_1-style operation (similar to AD1981B
operation). Only two jacks, typically line out and headphone
out, are supported in this configuration. The GPIO pins can be
connected to the left channel wrap-back switch on the jack via a
2.2 k (typical) resistor. The left channel needs a 20 k (typical)
resistor-to-analog ground to complete the circuit. This config-
uration allows autoconfiguration when other devices are plugged
in; for example, when headphones are plugged in, the external
speakers are disabled for private listening.
Table 27. Jack Sense Mapping
SENSE_A
SENSE_B
Resistor
(1% tolerance)
Name
Port
HD Audio Node ID
Name
Port
HD Audio Node ID
5.1 k
Line Out
D
0x05
N/A
N/A
N/A
10.0 k
Line In
C
0x09
N/A
N/A
N/A
20.0 k
Front Microphone
B
0x08
Rear Microphone
F
0x18
39.2 k
Headphone Out
A
0x06
Aux In
E
0x17
AD1981HD
Rev. 0 | Page 16 of 16
OUTLINE DIMENSIONS
COMPLIANT TO JEDEC STANDARDS MS-026BBC
TOP VIEW
(PINS DOWN)
1
12
13
25
24
36
37
48
0.27
0.22
0.17
0.50
BSC
LEAD PITCH
7.00
BSC SQ
1.60
MAX
0.75
0.60
0.45
VIEW A
9.00 BSC
SQ
PIN 1
0.20
0.09
1.45
1.40
1.35
0.08 MAX
COPLANARITY
VIEW A
ROTATED 90 CCW
SEATING
PLANE
7
3.5
0
0.15
0.05
Figure 4. 48-Lead Low Profile Quad Flat Package [LQFP]
(ST-48)
Dimensions shown in millimeters
ORDERING GUIDE
Model
Temperature Range
Package Description
Package Option
AD1981HDJSTZ
1
0
C to +70C
48-Lead LQFP, Tray Version
ST-48
AD1981HDJSTZ-REEL
0
C to +70C
48-Lead LQFP, Reel Version
ST-48
1
Z = Pb-free part.
2005 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D0432106/05(0)