Электронный компонент: HI2570JCQ

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1

�

September 1997

HI2570, CXD2570

1-Bit AD/DA

Converter For Audio Application

Features

� Two-Channel AD/DA Converters and Their Each Deci-

mation and Oversampling Digital Filter in a Single Chip

� Simplified External Parts with a Built-In Analog Circuit

Around AD Converter

� Distortion

- ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.015%
- DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.009% (-3dB)

� S/N Ratio (Typical Values when F

S

= 16kHz)

- ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80dB
- DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90dB

� Ripple in the Digital Filter Pass Band

. . . . . . . �0.05dB<

� Attenuation in the Digital Filter Rejection Band. . . 45dB>

Applications

- Telephones, TV Conference Systems, Language Lab-

oratory Equipment, TV Game Equipment and Elec-
tronic Musical Instrument

Description

The HI2570, CXD2570 is a 1-bit stereo AD/DA converter
which uses a 2nd-order

system noise shaper. This LSI is

especially suited for sampling frequency between 8kHz and
32kHz.

Function

� Data Can Be Input/Output at Rate of 1xF

S

with a Built-

In Digital Filter

� Multi-Channel Systems can be Connected Using Several

HI2570, CXD2570Qs

� The 32-Slot Serial Data Interface Enables Independent

Selection of Data Frontward Truncation/Rearward
Truncation and MSB First/LSB First

� 512F

S

/1024F

S

(when F

S

= 8 to 16kHz) or 256F

S

/512F

S

/

768F

S

/1024F

S

(When F

S

= 16 to 32kHz) Can be Used

as the Master Clock

� The Sampling Frequency of Not Only 8kHz or 16kHz, but

32kHz or 44.1kHz Can Be Used for Audio Equipment

� Various Frequency Divided Clocks are Output for LSIs

Connected

Pinout

HI2570, CXD2570 (48 LEAD MQFP)

TOP VIEW

Ordering Information

PART

NUMBER

TEMP.

RANGE (

o

C)

PACKAGE

PKG. NO.

HI2570JCQ

-20 to 55

48 Ld MPQF

Q48.12x12-S

CXD2570Q

-20 to 55

48 Ld MPQF

Q48.12x12-S

1

2
3
4
5
6

7
8

32
31
30
29
28
27
26
25

24

23

22

21

20

19

18

17

9

10
11
12

13 14 15 16

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

XSL2
XSL1
XSL0
MLSL
MASL
DV

SS

SOUT
SIN
BCK
LRCK
MS
DV

DD

AV

DD

3

AOUT1-

AV

SS

3

UCLK
XCLK

XTLO

XV

SS

AV

SS

4

AOUT2-

AV

DD

4

XV

DD

XTLI

AO

UT

1
+

AV

SS

3

AV

SS

1

AIN1

AV

DD

1

NC

NC

DV

DD

WO

DAS

L

1

DAS

L

0

SU

B

AO

UT

2

+

AV

SS

4

AV

SS

2

AIN2

AV

DD

2

NC

SU

B

NC

DV

SS

X

M

CK2

TE

S

T

CL

R

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143

|

Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright � Intersil Americas Inc. 2002. All Rights Reserved

File Number

4122.1

NOT REC

OMMEND

ED FOR N

EW DESIG

NS

2

�

File Number

3

Pin Descriptions

PIN NO.

SYMBOL

I/O

DESCRIPTION

1

AV

DD

3

--

Analog power supply for channel-1 DA converter

2

AOUT1 (-)

O

Analog reversed phase output of channel-1 DA converter

3

AV

SS

3

--

Analog GND for channel-1 DA converter

4

UCLK

O

Outputs a 1/2 frequency divider of clock input from oscillation pin XTLI (Pin 7).
User clock output for the externally connected ICs.

5

XCLK

O

256Fs/512Fs clock output. This provides the master clock for ICs operating in
the slave mode when multiple CXD2570Qs are connected.

6

XV

DD

--

Digital power supply for the master clock

7

XTLI

I

Crystal oscillation circuit input. Connects the crystal oscillator selected by the
crystal selector pins XSL0 to 2 (Pins 34, 35 and 36). To input an external mas-
ter clock, this pin is used.

8

XTLO

O

Crystal oscillation circuit output. Connects the crystal oscillator selected by the
crystal selector pins XSL0 to 2 (Pins 34, 35 and 36).

9

XV

SS

--

Digital GND for the master clock

10

AV

SS

4

--

Analog GND for channel-2 DA converter

11

AOUT2 (-)

O

Analog reversed phase output of channel-2 DA converter

12

AV

DD

4

--

Analog power supply for channel-2 DA converter

13

AOUT2 (+)

O

Analog forward phase output of channel-2 DA converter

14

AV

SS

4

--

Analog GND for channel-2 DA converter

15

AV

SS

2

--

Analog GND for channel-2 AD converter

16

AIN1

I

Analog input of channel-2 converter

17

AV

DD

2

--

Analog power supply for channel-2 AD converter

18

NC

--

19

SUB

--

Connected to the substrate in the IC (having the same potential as power sup-
ply). Connect this pin to GND via a capacitor on the external printed wiring
board.

20

NC

--

21

DV

SS

--

Digital GND

22

XMCK2

O

IC measurement. Normally, Low is output.

23

TEST

I

Test. Normally, fixed at Low. Equipped with a pull-down resistor.

24

CLR

I

System clear input. Normally, fixed at High; cleared at Low. Equipped with a
pull-up resistor.

25

DV

DD

--

Digital power supply.

26

MS

I

Master/slave mode switching input. High = Master mode. Low = Slave mode.
Equipped with a pull-up resistor.

27

LRCK

I/O

Sampling frequency clock pin of serial I/O. Outputs in master mode (when Pin
26 is High). Inputs in slave mode (when Pin 26 is Low). Transfers channel-1
data at High; transfers channel-2 data at Low.

HI2570, CXD2570

4

28

BCK

I/O

Serial bit transfer clock for serial input data SIN or serial output data SOUT
(64FS). Outputs in master mode (when Pin 26 is High). Inputs in slave mode
(when Pin 26 is Low). Retrieves serial input data at

; send serial out-

put data at

.

29

SIN

I

Serial data input of 2-channel sampling. The data format is 2's complement,
and consists of 32-bit slot.

30

SOUT

O

Serial data output of 2-channel per sampling. The data format is 2's comple-
ment, and consists of 32-bit slot.

31

DV

SS

--

Digital GND

32

MASL

I

Selects whether 16-bit serial data is applied in the first 16-bits or the last 16-
bit of 32-bit slot in serial I/O. High = Frontward truncation; Low = Rearward
truncation

33

MLSL

I

Selects whether 16-bit serial data is input/output at LSB first or MSB first in
serial I/O. High = MSB first; Low = LSB first

34

XSL0

I

Crystal oscillator selection. Three bits, XSL0 to 2. Selects the clock frequency
to be input from XTLI (Pin 7).

35

XSL1

I

Crystal oscillator selection. Three bits, XSL0 to 2. Selects the clock frequency
to be input from XTLI (Pin 7).

36

XSL2

I

Crystal oscillator selection. Three bits, XSL0 to 2. Selects the clock frequency
to be input from XTLI (Pin 7).

37

DASL0

I

IC measurement. Normally, fixed at High.

38

DASL1

I

IC measurement. Normally fixed at Low.

39

WO

I

Window masked when High; window open when Low (forced synchroniza-
tion). Equipped with a pull-up resistor.

40

DV

DD

--

Digital power supply

41

NC

--

42

NC

--

43

SUB

--

Connected to the substrate in the IC (having the same potential as power sup-
ply). Connect this pin to GND via capacitor on the external printed wiring
board.

44

AV

DD

1

--

Analog power supply for channel-1 AD converter

45

AIN1

I

Analog input of channel-1 AD converter

46

AV

SS

1

--

Analog GND for channel-1 AD converter

47

AV

SS

3

--

Analog GND for channel-1 DA converter

48

AOUT1 (+)

O

Analog forward phase output of channel-1 DA converter

Pin Descriptions

(Continued)

PIN NO.

SYMBOL

I/O

DESCRIPTION

HI2570, CXD2570

5

Absolute Maximum Ratings

T

A

= 25

o

C

I/O Capacitance

Supply Voltage (V

DD

). . . . . . . . . . . . . . . . . . . . . . V

SS

�0.5V to 7.0V

Input Voltage (V

1

). . . . . . . . . . . . . . . . . . .V

SS

� 0.5V to V

DD

+ 0.5V

Output Voltage (V

0

) . . . . . . . . . . . . . . . . . V

SS

� 0.5V to V

DD

+ 0.5V

Operating Temperature (Topr) . . . . . . . . . . . . . . . . . . -20

o

C to 75

C

Storage Temperature (Tstg . . . . . . . . . . . . . . . . . . . -55

o

C to 150

o

C

Recommended Operating Conditions

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIN

TYP

MAX

Supply Voltage (Note 1) (V

DD

)

4.5V

5.0V

5.5V

Ambient Temperature (T

A

) . . . . . . . . . . . . . . -20

o

C

--

+75

o

C

Sampling Frequency (Note 2) (F

S

). . . . . . . . 7kHz

--

33kHz

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIN

TYP

MAX

Input Pin (C

IN

)

. --

--

9pF

Output Pin (C

OUT

) . . . . . . . . . . . . . . . . . . .

--

--

11pF

Bidirectional Pin (C

I/O

) . . . . . . . . . . . . . . . . ---

--

11 pF

Measurement conditions: V

DD

= V

1

= 0V, f = 1MHz

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTES:

1. The analog power supplies for AD converters (Pins 17 and 44) must be turned on simultaneously with or before other poser supplies.

turning on these power supplies after any other power supply may cause the device to fall into latch-up condition. this precaution, how-
ever, does not apply when turning off the power supplies.

2. Although the device can operate with F

S

frequencies such as F

S

= 44.1kHz or 48kHz, its analog characteristics deteriorate to extent.

When used at only these F

S

frequencies, the CXD255Q is recommended that is pin-compatible with the CXD2570Q.

Electrical Specifications

PARAMETER

SYMBOL

TEST

CONDITIONS

PART NUMBER

OR GRADE

UNITS

APPLICABLE

PINS

MIN

TYP

MAX

DC Characteristics

AV

DD

1 = AV

DD

2 = AV

DD

3 = AV

DD

4 = XV

DD

= DV

DD

= 5.0V � 10%, AV

SS

1 = AV

SS

2 = AV

SS

3 = AV

SS

4 =

XV

SS

= DV

SS

= 0V, T

A

= -20

o

C to 75

o

C

Input Voltage

V

IHC

0.7V

DD

--

--

V

*1

V

ILC

�

�

0.3V

DD

V

IN

Analog Input

V

SS

--

V

DD

V

*2

Output Voltage

V

OH1

I

OH

= -2mA

V

DD

-0.5

--

V

DD

V

*3

V

OL1

I

OL

= 4mA

0

--

0.4

V

OH2

I

OH

= -4mA

V

DD

-0.5

--

V

DD

V

*4

V

OL2

I

OL

= 4mA

0

--

0.4

V

OH3

I

OH

= -12mA

V

DD

/2

--

V

DD

V

*5

V

OL3

I

OL

= 16mA

0

--

V

DD

/2

V

OH4

I

OH

= -2mA

V

DD

-0.8

--

V

DD

V

*6

V

OL4

I

OL

= 4mA

0

--

0.4

Input Leak Current 1

I

LI1

-10

--

10

�A

*7

Input Leak Current 2

I

LI2

-40

--

40

�A

*8

Input Leak Current 3

I

LI3

-20

-50

-12-

�A

*9

Input Leak Current 4

I

LI4

20

50

120

�A

*10

Output Leak Current

I

LZ

-40

--

40

�A

*11

Feedback Resistance

R

FB

V

IN

= V

SS

or V

DD

250K

1M

`2.5M

*12

Supply Current

I

DD

(Note 3)

--

43

60

mA

AC Characteristics

AV

DD

1 = AV

DD

2 = AV

DD

3 = AV

DD

4 = XV

DD

= DV

DD

= 5.0V � 10%, AV

SS

1 = AV

SS

2 = AV

SS

3 = AV

SS

4 =

XV

SS

= DV

SS

= 0V, T

A

= -20

o

C to 75

o

C

SIN Setup Time

tsus

10

--

--

ns

SIN Hold Time

ths

15

--

--

ns

LRCK Setup Time

tsul

Slave mode

10

--

--

ns

LRCK Hold Time

thl

Slave mode

15

--

--

ns

LRCK Delay Time

tdl

Master mode
CL = 130pF

-40

--

30

ns

HI2570, CXD2570

Document Outline

• �
• O
• �
• O
• O
• �
• I
• O
• �
• �
• O
• �
• O
• �
• �
• I
• �
• �
• �
• �
• �
• O
• I
• I
• �
• I
• I/O
• I/O
• I
• O
• �
• I
• I
• I
• I
• I
• I
• I
• I
• �
• �
• �
• �
• �
• I
• �
• �
• O
• HI2570, CXD2570
• HI2570, CXD2570
  • 1. The analog power supplies for AD converters (Pins 17 and 44) must be turned on simultaneously...
  • 2. Although the device can operate with FS frequencies such as FS = 44.1kHz or 48kHz, its analog...
  • VIHC
  • 0.7VDD
  • �
  • �
  • V
  • *1
  • VILC
  • �
  • �
  • 0.3VDD
  • VIN
  • Analog Input
  • VSS
  • �
  • VDD
  • V
  • *2
  • VOH1
  • IOH = -2mA
  • VDD -0.5
  • �
  • VDD
  • V
  • *3
  • VOL1
  • IOL = 4mA
  • 0
  • �
  • 0.4
  • VOH2
  • IOH = -4mA
  • VDD -0.5
  • �
  • VDD
  • V
  • *4
  • VOL2
  • IOL = 4mA
  • 0
  • �
  • 0.4
  • VOH3
  • IOH = -12mA
  • VDD/2
  • �
  • VDD
  • V
  • *5
  • VOL3
  • IOL = 16mA
  • 0
  • �
  • VDD/2
  • VOH4
  • IOH = -2mA
  • VDD -0.8
  • �
  • VDD
  • V
  • *6
  • VOL4
  • IOL = 4mA
  • 0
  • �
  • 0.4
  • ILI1
  • -10
  • �
  • 10
  • mA
  • *7
  • ILI2
  • -40
  • �
  • 40
  • mA
  • *8
  • ILI3
  • -20
  • -50
  • -12-
  • mA
  • *9
  • ILI4
  • 20
  • 50
  • 120
  • mA
  • *10
  • ILZ
  • -40
  • �
  • 40
  • mA
  • *11
  • RFB
  • VIN = VSS or VDD
  • 250K
  • 1M
  • �2.5M
  • W
  • *12
  • IDD
  • (Note 3)
  • �
  • 43
  • 60
  • mA
  • tsus
  • 10
  • �
  • �
  • ns
  • ths
  • 15
  • �
  • �
  • ns
  • tsul
  • Slave mode
  • 10
  • �
  • �
  • ns
  • thl
  • Slave mode
  • 15
  • �
  • �
  • ns
  • tdl
  • Master mode CL = 130pF
  • -40
  • �
  • 30
  • ns
  • tds
  • CL = 60pF
  • 9
  • �
  • 65
  • ns
  • tzd
  • 7
  • �
  • 42
  • ns
  • tdz
  • 6
  • �
  • 40
  • ns
  • twl
  • FS = 16kHz, 256Fs (XSL0 = XSL1 = XSL2 = Low
  • 40
  • �
  • 200
  • ns
    • 3. This includes current consumption at load resistance (RL = 3.9W). Fs = 16kHz *1 All input pin...
  • 74
  • 80
  • �
  • dB
  • �
  • 0.015
  • 0.03
  • %
  • 74
  • 80
  • �
  • dB
  • �
  • 97
  • �
  • dB
  • �
  • 0.1
  • �
  • dB
  • -3
  • 0
  • +3
  • dB
  • �
  • 0.1
  • �
  • Vrms
  • �
  • 1.4
  • �
  • Vrms
  • �
  • 030F
  • �
  • Hex
  • �
  • 1.2
  • kW
  • 84
  • 90
  • �
  • dB
  • �
  • 0.009
  • 0.03
  • %
  • 82
  • 88
  • �
  • dB
  • �
  • 100
  • �
  • dB
  • �
  • 0.05
  • �
  • dB
  • 1.80
  • 1.93
  • 2.10
  • Vrms
  • High
  • Frontward truncation
  • High
  • MSB first
  • Low
  • Rearward truncation
  • Low
  • LSB first
  • High
  • Master mode
  • Output
  • Low
  • Slave mode
  • Input
  • L
  • L
  • L
  • 256Fs
  • 256Fs
  • 128Fs
  • L
  • L
  • H
  • 512Fs
  • 256Fs
  • 256Fs
  • L
  • H
  • L
  • 768Fs
  • 256Fs
  • 384Fs
  • L
  • H
  • H
  • 1024Fs
  • 256Fs
  • 512Fs
  • H
  • L
  • L
  • 512Fs
  • 512Fs
  • 256Fs
  • H
  • L
  • H
  • �
  • �
  • �
  • H
  • H
  • L
  • 1024Fs
  • 512Fs
  • 512Fs
  • H
  • H
  • H
  • �
  • �
  • �
• HI2570, CXD2570
• HI2570, CXD2570
• HI2570, CXD2570
• HI2570, CXD2570
  • A
  • -
  • A1
  • -
  • B
  • 5
  • D
  • 2
  • D1
  • 3, 4
  • E
  • 2
  • E1
  • 3, 4
  • L
  • -
  • N
  • 48
  • 48
  • 6
  • e
  • 0.032 BSC
  • 0.80 BSC
  • -
    • 1. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact.
    • 2. Dimensions D and E to be determined at seating plane .
    • 3. Dimensions D1 and E1 to be determined at datum plane .
    • 4. Dimensions D1 and E1 do not include mold protrusion.
    • 5. Dimension B does not include dambar protrusion.
    • 6. �N� is the number of terminal positions.
• HI2570, CXD2570
  • 1-Bit AD/DA Converter For Audio Application
  • -20 to 55
  • -20 to 55
  • Pinout
    • HI2570, CXD2570 (48 LEAD MQFP)
      • TOP VIEW