TAS5015
SLES017 SEPTEMBER 2001
TRUE DIGITAL AUDIO AMPLIFIER
TAS5015 DIGITAL AUDIO PWM PROCESSOR
1
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FEATURES
D
TAS5015 Plus Discrete Back-End TDAA
System -- High-Quality Digital Audio
Amplification
D
112-dB Dynamic Range (TAS5015 Device)
D
THD+N < 0.01%
D
Power Efficiency Is 90% into 8-
Load
D
16-, 20-, or 24-Bit Input Data
D
44.1-kHz, 48-kHz, 88.2-kHz, 96-kHz, 176.4-kHz,
192-kHz Sampling Rates
D
Economical 48-Pin TQFP Package
D
External PLL
D
3.3-V Power Supply
D
Mute
D
Clicks and Pops Reduction (Patent Pending)
APPLICATIONS
D
High-Performance Digital Amplification For:
Integrated Amplifiers
AV Receiver
Car Audio
DESCRIPTION
The true digital audio amplifier (TDAA) is a new
paradigm in digital audio. One TDAA system consists of
the TAS5015 PCM-PWM modulator device plus a
discrete back-end TDAA power output. This system
accepts a serial PCM digital audio stream and converts
it to a 3.3-V PWM audio stream (TAS5015). The
discrete back-end TDAA then provides a large-signal
PWM output. This digital PWM signal is then
demodulated, providing power output for driving
loudspeakers. This patented technology provides
low-cost, high-quality, high-efficiency digital audio
applicable to many audio systems developed for the
digital age. The TAS5015 is an innovative,
cost-effective, high-performance 24-bit stereo
PCM-PWM modulator based on Equibit
technology.
The TAS5015 has a wide variety of serial input options
including right-justified (16, 20, or 24 bits), IIS (16, 20,
or 24 bits), left-justified (16 bits), or DSP (16 bits) data
formats. It is fully compatible with AES standard
sampling rates (Fs) of 44.1 kHz, 48 kHz, 88.2 kHz, 96
kHz, 176.4 kHz, and 192 kHz. The TAS5015 also
provides a de-emphasis function for 44.1-kHz and
48-kHz sampling rates.
TAS5015
Discrete
Back-End
Left
Volume
EQ
DRC
Bass
Treble
Serial Audio Input Port
External PLL
Equibit
Modulator
Up to 192-kHz Sampling
Digital Audio
Processor
DSP
S/PDIF
1394
Digital Audio
H-Bridges
Power Devices
Improved Performance
From TAS5100
Discrete
Back-End
Right
L-C
Filter
L-C
Filter
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2001, Texas Instruments Incorporated
Equibit is a trademark of Toccata Technology ApS, Denmark.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TAS5015
SLES017 SEPTEMBER 2001
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terminal assignments
14 15
DVDD3_L
PWM_AP_L
PWM_AM_L
PWM_BM_L
PWM_BP_L
DVDD2
DVSS2
PWM_AP_R
PWM_AM_R
PWM_BM_R
PWM_BP_R
DVDD3_R
36
35
34
33
32
31
30
29
28
27
26
25
16
1
2
3
4
5
6
7
8
9
10
11
12
MCLK_IN
AVDD2
NC
NC
AVSS2
HFCLK
RESET
PDN
VALID_R
M_S
NC
DVDD1
17 18 19 20
47 46 45 44 43
48
42
40 39 38
41
21 22 23 24
37
13
48-Pin TQFP PACKAGE
(TOP VIEW)
NC No internal connection
A
VDD1
A
VSS1
NC
NC
A
VSS1
DEM_EN
DEM_SEL
FTEST
STEST
DBSPD
MUTE
DVSS3_L
DVSS1
DVDD1
DVSS1
MCLK_OUT
SCLK
LRCLK
SDIN
MOD2
MOD1
MOD0
V
ALID_L
DVSS3_R
references
D
True Digital Audio Amplifier TAS5100 PWM Power Output Stage Texas Instruments publication SLLS419
D
Design Considerations for TAS5000/TAS5110 True Digital Audio Power Amplifiers Texas Instruments
publication SLAA117
D
Digital Audio Measurements Texas Instruments publication SLAA114
D
PowerPAD
Thermally Enhanced Package Texas Instruments publication SLMA002
PowerPAD is a trademark of Texas Instruments.
TAS5015
SLES017 SEPTEMBER 2001
3
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functional block diagram
Clock
Generator
Serial
Audio
Port
Digital
Interpolation
Filter
Equibit
Modulator
Buffer
Audio Port
Configuration
Control Section
LRCLK
SCLK
SDIN
PWM_AP_L
PWM_AM_L
HFCLK
MCLK_OUT
MCLK_IN
MOD0
MOD1
MOD2
DEM_SEL
DEM_EN
MUTE
RESET
PDN
FTEST
STEST
DBSPD
M_S
DVDD1
DVSS1
DVDD2
DVSS2
DVDD3_L
DVSS3_L
DVDD3_R
DVSS3_R
A
VDD1
A
VSS1
A
VDD2
A
VSS2
PWM_AP_R
PWM_AM_R
V
ALID_R
V
ALID_L
PWM_BP_L
PWM_BM_L
PWM_BP_R
PWM_BM_R
AVAILABLE OPTIONS
TA
PACKAGE
0
C to 70
C
TAS5015PFB
40
C to 85
C
TAS5015IPFB
NOTE: These packages are available taped and reeled. Add R suffix
to ordering number (e.g., TAS5015PFBR).
TAS5015
SLES017 SEPTEMBER 2001
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Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
AVDD1
48
I
Analog supply
AVDD2
2
I
Analog supply
AVSS1
44, 47
I
Analog ground
AVSS2
5
I
Analog ground
DBSPD
39
I
Indicates sample rate is double speed (88.2 kHz or 96 kHz), active high
DEM_EN
43
I
De-emphasis enable, active high
DEM_SEL
42
I
De-emphasis select (0 = 44.1 kHz, 1 = 48 kHz)
DVDD1
12, 14
I
Digital voltage supply for logic
DVDD2
31
I
Digital voltage supply for PWM reclocking
DVDD3_L
36
I
Digital voltage supply for PWM output (left)
DVDD3_R
25
I
Digital voltage supply for PWM output (right)
DVSS1
13, 15
I
Digital ground for logic
DVSS2
30
I
Digital ground for PWM reclocking
DVSS3_L
37
I
Digital ground for PWM output (left)
DVSS3_R
24
I
Digital ground for PWM output (right)
FTEST
41
I
Tied to DVSS1 for normal operation
HFCLK
6
I
External PLL clock input
LRCLK
18
I/O
Left/right clock (input when M_S = 0; output when M_S = 1)
MCLK_IN
1
I
MCLK input
MCLK_OUT
16
O
Buffered system clock output if M_S = 1; otherwise set to 0
MOD0
22
I
Serial interface selection pin, bit 0
MOD1
21
I
Serial interface selection pin, bit 1
MOD2
20
I
Serial interface selection pin, bit 2 (MSB)
M_S
10
I
Master/slave, master=1, slave=0
MUTE
38
I
Muted signal = 0, normal mode = 1
NC
3, 4, 11, 45,
46
No connection
PDN
8
I
Power down, active low
PWM_AM_L
34
O
PWM left output A (differential )
PWM_AM_R
28
O
PWM right output A (differential )
PWM_AP_L
35
O
PWM left output A (differential +)
PWM_AP_R
29
O
PWM right output A (differential +)
PWM_BM_L
33
O
PWM left output B (differential )
PWM_BM_R
27
O
PWM right output B (differential )
PWM_BP_L
32
O
PWM left output B (differential +)
PWM_BP_R
26
O
PWM right output B (differential +)
RESET
7
I
Reset (active low)
SCLK
17
I/O
Shift clock (input when M_S = 0, output when M_S = 1)
SDIN
19
I
Stereo serial audio data input
STEST
40
I
Tied to DVSS1 for normal operation
VALID_L
23
O
PWM left outputs valid (active high)
VALID_R
9
O
PWM right outputs valid (active high)
TAS5015
SLES017 SEPTEMBER 2001
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functional description
serial audio port
The serial audio port consists of a shift clock (SCLK pin), a left/right frame synchronization clock (LRCLK pin),
and a data input (SDIN pin). The serial audio port supports standard serial PCM formats (Fs = 44.1-kHz, 48-kHz,
88.2-kHz, 96-kHz, 176.4-kHz, or 192-kHz stereo). See the serial interface formats section.
system clocks--master mode and slave mode
The TAS5015 allows multiple system clocking schemes. Master mode indicates that the TAS5015 provides
system clocks to other parts of the system (M_S=1). Audio system clocks of frequency 128 Fs MCLK_OUT
(quad speed), 64 Fs SCLK, and Fs LRCLK are output from this device when it is configured in master mode.
Slave mode indicates that a system master other than the TAS5015 provides system clocks (LRCLK, SCLK,
and MCLK_IN) to the TAS5015 (M_S = 0). The TAS5015 operates with LRCLK and SCLK synchronized to
MCLK. The TAS5015 does not require any specific phase relationship between LRCLK and MCLK, but there
must be synchronization. In the slave mode, MCLK_OUT is driven low. Table 1 shows all the possible master
and slave modes.
sampling frequency
The normal sampling frequency is either 11.2896 MHz (Fs = 44.1 kHz) or 12.288 MHz (Fs = 48 kHz). Twice the
normal sampling frequency can be selected by using the DBSPD pin which allows usage of Fs = 88.2 kHz or
Fs = 96 kHz. In the double-speed slave mode (DBSPD = 1, M_S = 0), the external clock input is either
22.5796 MHz (Fs = 88.2 kHz) or 24.576 MHz (Fs = 96 kHz). Table 1 explains the proper clock selection.
Table 1. External Clock and External PLL Functions
DESCRIPTION
M_S
DBSPD
DEM_EN
DEM_SEL
MCLK_IN
(MHz)
HFCLK
(MHz)
SCLK
(MHz)
LRCLK
(KHz)
MCLK_OUT
(MHz)
External PLL, master, normal
1
0
0
0
90 3168
2 8224
44 1
11 2896
External PLL, master, normal
speed (see Notes 1 and 2)
1
0
1
0
90.3168
2.8224
44.1
11.2896
External PLL, master, normal
1
0
1
1
98 304
3 072
48
12 288
External PLL, master, normal
speed (see Notes 1 and 2)
1
0
0
0
98.304
3.072
48
12.288
External PLL, master, double
speed (see Notes 1 and 2)
1
1
0
0
90.3168
5.6448
88.2
22.5792
External PLL, master, double
speed (see Note 1 and 2)
1
1
0
0
98.304
6.144
96
24.576
External PLL, master, quad speed
(see Notes 1 and 2)
1
0
0
1
90.3168
11.2896
176.4
22.5792
External PLL, master, quad speed
(see Notes 1 and 2)
1
0
0
1
98.304
12.288
192
24.576
External PLL, slave, normal speed
0
0
0
0
11 2896
90 3168
2 8224
44 1
11 2896
External PLL, slave, normal s eed
(see Notes 3, 4, and 5)
0
0
1
0
11.2896
90.3168
2.8224
44.1
11.2896
External PLL, slave, normal speed
0
0
1
1
12 288
98 304
3 072
48
12 288
External PLL, slave, normal s eed
(see Notes 3, 4, and 5)
0
0
0
0
12.288
98.304
3.072
48
12.288
NOTES:
1. SCLK and LRCLK are outputs
2. MCLK_IN tied LOW
3. External MCLK connected to MCLK_IN input
4. SCLK and LRCLK are inputs
5. MCLK_OUT is a buffered version of the external MCLK input
TAS5015
SLES017 SEPTEMBER 2001
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functional description (continued)
Table 1. External Clock and External PLL Functions (Continued)
DESCRIPTION
M_S
DBSPD
DEM_EN
DEM_SEL
MCLK_IN
(MHz)
HFCLK
(MHz)
SCLK
(MHz)
LRCLK
(kHz)
MCLK_OUT
(MHz)
External PLL, slave, double speed
(see Notes 3, 4, and 5)
0
1
0
0
22.5792
90.3168
5.6448
88.2
22.5792
External PLL, slave, double speed
(see Notes 3, 4, and 5)
0
1
0
0
24.576
98.304
6.144
96
24.576
External PLL, slave, quad speed
(see Notes 3, 4, and 5)
0
0
0
0
22.5792
90.3168
11.2896
176.4
22.5792
External PLL, slave, quad speed
(see Notes 3, 4, and 5)
0
0
0
0
24.576
98.304
12.288
192
24.576
NOTES:
3. External MCLK connected to MCLK_IN input
4. SCLK and LRCLK are inputs
5. MCLK_OUT is a buffered version of the external MCLK input
external PLL
For the highest system performance, an external PLL must be used with the TAS5015. For normal-speed mode,
the external PLL input (HFCLK) must be 2048 Fs, for double-speed mode HFCLK must be 1024 Fs, and for
quad-speed mode HFCLK must be 512 Fs.
digital interpolation filter
The 24-bit high-performance linear phase FIR interpolation filter up-samples the input digital data at a rate of
two times (quad-speed mode = 176.4 kHz or 192 kHz), four times (double-speed mode = 88.2 kHz or 96 kHz),
or eight times (normal mode = 44.1 kHz or 48 kHz) the incoming sample rate. This filter provides low pass-band
ripple and optimized time domain transient response for accurate music reproduction.
digital PWM modulator
The interpolation filter output is sent to the digital PWM modulator. This modulator consists of a high-
performance fourth order digital-noise shaper and a PCM-to-PWM converter. Following the noise shaper, the
PCM signal is fed into a low distortion PCM-to-PWM conversion block, buffered, and output from the chip. The
modulation scheme is based on a 2-state control of the H-bridge output.
control, status, and operational modes
The TAS5015 control section consists of several control-input pins. Three serial mode pins (MOD0, MOD1, and
MOD2) are provided to select various serial data formats. During normal operating conditions if any of the
MOD0, MOD1, or MOD2 pins changes state, a reset sequence is initiated. Also provided are separate
power-down (PDN), reset (RESET), and mute (MUTE) pins.
power up
At power up, the VALID_L and VALID_R pins are asserted low and the PWM outputs go to the hard mute state
in which the P outputs are held low and the M outputs are held high. Following initialization, the TAS5015 comes
up in the operational state (differential PWM audio). There are two cases of power-up timing. The first case is
shown in Figure 1 with RESET preceding PDN. The second case is shown in Figure 2 with PDN preceding
RESET.
TAS5015
SLES017 SEPTEMBER 2001
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functional description (continued)
Initialization Time = 100 ms max
RESET
PDN
VALID_L
VALID_R
Figure 1. Power-Up Timing (RESET Preceding PDN)
Initialization Time = 5 ms max
RESET
PDN
Greater Than 16 MCLK Periods
VALID_L
VALID_R
Figure 2. Power-Up Timing (PDN Preceding RESET)
reset
The reset signal for the TAS5015 must be applied whenever toggling the M_S, DBSPD signal. This reset is
asynchronous. See Figure 3 for reset timing. To initiate the reset sequence the RESET pin is asserted low. As
long as the pin is held low the chip is in the reset state. During this reset time, the PWM outputs are hard-muted
(P-outputs held low and M-outputs held high) and the PWM outputs valid pins (VALID_L. VALID_R) are held
low. Assuming PDN is high, the rising edge of the reset pulse begins chip initialization. After the initialization
time, the TAS5015 begins normal operation.
Initialization
Normal
Operation
RESET
PDN
Normal Operation
5 ms max
VALID_L
VALID_R
Figure 3. Reset Timing
power down
Note that power down is an asynchronous operation. To place the device in total power-down mode, both
RESET and PDN must be held low. As long as these pins are held low, the chip is in the power-down state and
the PWM outputs are hard muted with the P outputs held low and the M outputs held high. To place the device
back into normal mode, see the power up section.
NOTE:
In order for the dynamic logic to be properly powered down, the clocks should not be stopped before
the PDN pin goes low. Otherwise, the device may drain additional supply current.
TAS5015
SLES017 SEPTEMBER 2001
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functional description (continued)
Initialization
Chip
Power-Down
PDN and RESET
Normal Operation
Normal
Operation
VALID
Figure 4. Power-Down Timing
mute
The TAS5015 provides a mute function that is used when the MUTE pin is asserted low. See Table 2 for mute
description. This mute is a quiet mute; that is, the mute is accomplished by outputting a zero value waveform
in which both sides of the differential PWM outputs have a 50% duty cycle (see Figure 5 for mute timing).
Table 2. Mute Description
MUTE
P OUTPUTS
M OUTPUTS
DESCRIPTION
0
50% duty cycle
50% duty cycle
Mute
1
DATA
DATA
Normal operation
Initialization
Normal State
MUTE
VALID_L
5 ms max
10
s max
5050 Duty Cycle
(P, M Complementary)
Inactive State
VALID_R
PWM Outputs
(P, M Complementary)
Figure 5. Mute Timing
double speed
Double-speed mode is used to support sampling rates of 88.2 kHz and 96 kHz. In order to put the TAS5015 in
double-speed mode with the device in normal operating conditions, the RESET pin must be held low while
switching the DBSPD pin high. After the RESET pin is brought high again, a reset sequence takes place. If the
change is at power up, a power-up sequence is originated.
quad speed
Quad-speed mode is used to support sampling rates of 176.4 kHz and 192 kHz. In order to put the TAS5015
in quad-speed slave mode, M_S and DBPSB pins are brought low. Quad-speed mode is then automatically
detected due to the fact that it is the only mode in which MCLK_IN is 128 Fs. DEM_SEL must be set to low when
operating in the quad-speed slave mode. For quad-speed master mode M_S = 1, DBSPD = 0, DEM_SEL = 1,
and DEM_EN = 0.
TAS5015
SLES017 SEPTEMBER 2001
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functional description (continued)
de-emphasis filter
For audio sources that have been preemphasized, a precision 50
s/15
s de-emphasis filter is provided to
support the sampling rates of 44.1 kHz and 48 kHz. Pins DEM_SEL and DEM_EN select the de-emphasis
functions. See Figure 6 for a graph showing the de-emphasis filtering characteristics. See Table 3 for
de-emphasis selection.
0
10
Response
dB
3.18 (50
s)
10.6 (15
s)
f Frequency kHz
De-emphasis
Figure 6. De-Emphasis Filter Characteristics
de-emphasis selection
De-emphasis selection is accomplished by using the DEM_SEL and DEM_EN pins. See Table 3 for
de-emphasis selection description.
Table 3. De-Emphasis Selection
DEM_SEL
DEM_EN
DESCRIPTION
0
0
De-emphasis disabled
0
1
De-emphasis enabled for Fs = 44.1 kHz
1
1
De-emphasis enabled for Fs = 48 kHz
1
0
Disallowed state. Do not use.
error status reporting (VALID_L and VALID_R)
The following is a list of the error conditions that will cause the VALID_L and VALID_R pins to be asserted low.
No clocks
Clock phase errors
When either of the above conditions is met, the VALID_L and VALID_R goes low and the PWM outputs go to
the hard mute state. If the error condition is removed, the TAS5015 is reinitialized and the VALID_L and VALID_R
pins are asserted high.
serial interface formats
The TAS5015 is compatible with eight different serial interfaces. Available interface options are IIS, right
justified, left justified, and DSP frame. Table 4 indicates how these options are selected using the MOD0, MOD1,
and MOD2 pins.
TAS5015
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functional description (continued)
Table 4. Hardware Selection of Serial Audio Modes
MODE
MOD2 PIN
MOD1 PIN
MOD0 PIN
SERIAL INTERFACE
SDIN
0
0
0
0
16-bit, MSB first; right justified
1
0
0
1
20-bit, MSB first; right justified
2
0
1
0
24-bit, MSB first; right justified
3
0
1
1
16-bit IIS
4
1
0
0
20-bit IIS
5
1
0
1
24-bit IIS
6
1
1
0
16-bit MSB first, left justified
7
1
1
1
16-bit DSP frame
The following figures illustrate the relationship between the SCLK, LRCLK, and the serial data I/O for the
different interface protocols. Note that there are always 64 SCLKs per LRCLK. The nondata bits are padded
with binary 0s.
MSB first, right-justified (for 16, 20, 24 bits)
X
MSB
LSB
MSB
LSB
SCLK
LRCLK = fs
SDIN
Left Channel
Right Channel
X
Figure 7. MSB First Right Justified
Note the following characteristics of this protocol.
Left channel is received when LRCLK is high.
Right channel is received when LRCLK is low.
SDIN is sampled at the rising edge of SCLK.
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functional description (continued)
IIS compatible serial format (for 16, 20, 24 bits)
X
MSB
LSB
X
MSB
LSB
SCLK
LRCLK = fs
SDIN
Left Channel
Right Channel
Figure 8. IIS Compatible Serial Format
Note the following characteristics of this protocol.
Left channel is received when LRCLK is low.
Right channel is received when LRCLK is high.
SDIN is sampled with the rising edge of the SCLK.
MSB left-justified serial interface format (for 16 bits)
MSB
LSB
MSB
LSB
SCLK
LRCLK = fs
SDIN
Left Channel
Right Channel
Figure 9. MSB Left-Justified Serial Interface Format
Note the following characteristics of this protocol.
Left channel is received when LRCLK is high.
Right channel is received when LRCLK is low.
SDIN is sampled at the rising edge of SCLK.
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functional description (continued)
DSP compatible serial interface format (for 16 bits)
SCLK
LRCLK = fs
SDIN
Left Channel
(MSB = 15)
Right Channel
(MSB = 15)
15
14
13
0
15
14
13
0
Figure 10. DSP Compatible Serial Interface Format
Note the following characteristic of this protocol.
Serial data is sampled with the falling edge of SCLK.
PWM Outputs
The TAS5015 is designed to be used with a discrete back-end. The TAS5015 PWM outputs provide differential
3.3-V square-wave signals. During normal operation these outputs represent the input PCM audio in the
pulse-width modulation scheme. In the hard-mute state the P outputs (PWM_AP_L, PWM_BP_L, PWM_AP_R,
and PWM_BP_R) are held low and the M outputs (PWM_AM_L, PWM_BM_L, PWM_AM_R, and PWM_BM_R)
are held high. In the quiet-mute state the differential PWM outputs have a 50% duty cycle.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Analog supply voltage range, AVDD1, AVDD2
0.3 V to 4.2 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital power supply voltage, DVDD1, DVDD2, DVDD3_L, DVDD3_R
0.3 V to 4.2 V
. . . . . . . . . . . . . . . . . . . . . . . . .
Digital input voltage, V
I
(see Note 6)
0.3 V to DVDDX
+ 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature, T
A
0
C to 70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature, T
stg
65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD
2000 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 6: DVDD1, DVDD2, DVDD3_L, DVDD3_R.
TAS5015
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recommended operating conditions, T
A
= 25
C,
DVDD1 = DVDD2 = DVDD3_L = DVDD3_R = 3.3 V
10%, AVDD1 = AVDD2 = 3.3 V
10%, Fs = 44.1 kHz
MIN
TYP
MAX
UNIT
Supply voltage
Digital
DVDDX
3
3 3
3 6
V
Supply voltage
Analog
AVDDX
3
3.3
3.6
V
Digital
Operating
22
mA
Supply current
Digital
Power down
10
20
A
Supply current
Analog
Operating
1
mA
Analog
Power down
10
100
A
Digital
Operating
59.4
mW
Power dissipation
Digital
Power down
6.6
72
W
Power dissipation
Analog
Operating
3.3
mW
Analog
Power down
33
360
W
DVDD1, DVDD2, DVDD3_L, DVDD3_R
If the clocks are turned off
AVDD1, AVDD2
electrical characteristics, T
A
= 25
C, DVDD1 = DVDD2 = DVDD3_L = DVDD3_R = 3.3 V
10%,
AVDD1 = AVDD2 = 3.3 V
10%
static digital specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
2
DVDD1
V
VIL
Low-level input voltage
0
0.8
V
VOH
High-level output voltage
IO = 1 mA
2.4
V
VOL
Low-level output voltage
IO = 4 mA
0.4
V
Input leakage current
10
10
A
digital interpolation filter and PWM modulator, Fs = 44.1 kHz
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Pass band
0
20
kHz
Pass-band ripple
0.012
dB
Stop band
24.1
kHz
Stop-band attenuation
24.1 kHz to 152.3 kHz
50
dB
Group delay
700
S
PWM modulation index (gain)
0.93
dB
TAS5015/TAS5110 system performance measured at the speaker terminals
See the Design Consideration for TAS5000/TAS5100 True Digital Audio Power Amplifiers application note,
Texas Instruments literature number SLAA117 for values.
TAS5015
SLES017 SEPTEMBER 2001
14
www.ti.com
switching characteristics, T
A
= 25
C,
DVDD1 = DVDD2 = DVDD3_L = DVDD3_R = AVDD1 = AVDD2 = 3.3 V
10%
serial audio ports slave mode
PARAMETER
MIN
TYP
MAX
UNIT
f(SCLK)
SCLK frequency
12.288
MHz
tsu(SDIN)
SDIN setup time before SCLK rising edge
20
ns
th(SDIN)
SDIN hold time from SCLK rising edge
10
ns
f(LRCLK)
LRCLK frequency
44.1
48
192
kHz
MCLK duty cycle
50%
SCLK duty cycle
50%
LRCLK duty cycle
50%
tsu(LRCLK)
LRCLK edge setup before SCLK rising edge
20
ns
serial audio ports master mode, C
L
= 50 pF
PARAMETER
MIN
TYP
MAX
UNIT
t(MSD)
MCLK to SCLK
0
5
ns
t(MLRD)
MLCK to LRCLK
0
5
ns
DSP serial interface mode
PARAMETER
MIN
TYP
MAX
UNIT
f(SCLK)
SCLK frequency
12.288
MHz
tw(FSHIGH)
Pulse duration, sync
1/(64
fs)
ns
tsu(SDIN),
tsu(LRCLK)
SDIN and LRCLK setup time before SCLK falling edge
20
ns
th(SDIN),
th(LRCLK)
SDIN and LRCLK hold time from SCLK falling edge
10
ns
SCLK duty cycle
50%
TAS5015
SLES017 SEPTEMBER 2001
15
www.ti.com
PARAMETER MEASUREMENT INFORMATION
th(SDIN)
tsu(SDIN)
SCLK
SDIN
Figure 11. Right-Justified, IIS, Left-Justified Serial Protocol Timing
tsu(LRCLK)
SCLK
LRCLK
NOTE: Serial data is sampled with the rising edge of SCLK (setup time = 20 ns and hold time = 10 ns)
Figure 12. Right, Left, and IIS Serial Mode Timing Requirement
t(MSD)
t(MLRD)
SCLK
LRCLK
(Output)
MCLK
(Output)
Figure 13. Serial Audio Ports Master Mode Timing
th(SDIN)
tsu(SDIN)
SCLK
LRCLK
SDIN
tsu(LRCLK)
tw(FSHIGH)
th(LRCLK)
Figure 14. DSP Serial Port Timing
TAS5015
SLES017 SEPTEMBER 2001
16
www.ti.com
PARAMETER MEASUREMENT INFORMATION
tw(FSHIGH)
64 SCLK
16-Bit Left Channel Data
16-Bit Left Channel Data
16-Bit Left Channel Data
32-Bit Ignore
SCLK
LRCLK
SDIN
Figure 15. DSP Serial Port Expanded Timing
tsu(SDIN) = 20 ns
th(SDIN) = 10 ns
SCLK
SDIN
NOTE: Serial data is sampled with the falling edge of SCLK (setup time = 20 ns and hold time = 10 ns)
Figure 16. DSP Absolute Timing Requirement
TAS5015
SLES017 SEPTEMBER 2001
17
www.ti.com
APPLICATION INFORMATION
Audio
Source
Clock
Generator
DEM_SEL
DEM_EN
DBSPD
SDIN
LRCLK
SCLK
MCLK_IN
MOD0
MOD1
MOD2
M_S
Discrete
Back-End
PWM_AP_L
PWM_AM_L
RESET
System
Controller
MUTE
PDN
3.3 V DIG
HFCLK
RESET
FTEST
TAS5015
VALID_L
Discrete
Back-End
PWM_AP_R
PWM_AM_R
RESET
VALID_R
STEST
PWM_BP_L
PWM_BM_L
PWM_BP_R
PWM_BM_R
External
PLL
NOTE A: See the Design Consideration for TAS5000/TAS5100 True Digital Audio Power Amplifiers application note, Texas Instruments literature
number SLAA117 for values.
TAS5015
SLES017 SEPTEMBER 2001
18
www.ti.com
MECHANICAL DATA
PFB (S-PQFP-G48)
PLASTIC QUAD FLATPACK
4073176 / B 10/96
Gage Plane
0,13 NOM
0,25
0,45
0,75
Seating Plane
0,05 MIN
0,17
0,27
24
25
13
12
SQ
36
37
7,20
6,80
48
1
5,50 TYP
SQ
8,80
9,20
1,05
0,95
1,20 MAX
0,08
0,50
M
0,08
0
7
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-026
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