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廬

HI2555, CXD2555

NOT RECO

W

D FO R N E

M ME N D E

DESIGNS

September 1997

1-Bit, AD/DA Converter

For Audio Application

Features

鈥?Two-Channel AD/DA Converters and Their Respective

Digital Filters for Decimation and Oversampling Into a

Single Chip

鈥?Peripheral Analog Circuits for AD Converter Greatly

Reduces External Elements

鈥?Distortion (Typ)

- ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01%

- DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.008% (-3dB)

鈥?S/N Ratio (Typ)

- ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86dB

- DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96dB

鈥?Ripple in the Digital Filter Pass Band . . . . . . .

鹵0.05dB

鈥?Attenuation in the Digital Filter Stop Band . . . . . . . .-45dB

Description

The HI2555, CXD2555 is a 1-bit stereo AD/DA converter

featuring a 2nd-order DA system noise shaper. This LSI has

also built-in digital filters and provides good cost performance.

Functions

鈥?Data Can Be Input/Output at Rate of 1 x f

S

with a Built-

In Digital Filter

鈥?Simple Connection of Multiple HI2555, CXD2555s

Enable Multi-Channel System

鈥?The 32-Slot Serial Data Interface Enables Independent

Selection of Data Frontward Packing/Rearward

Packing and MSB First/LSB First

鈥?The Master Clock is Applicable to Four Sources

鈥?256f

S

, 512f

S

, 768f

S

, and 1024f

S

鈥?The Sampling Frequency May be Adjusted to Low f

S

Frequencies Such as 16kHz or 8kHz, in Addition to

Normal Ones of 48kHz, 44.1kHz, and 32Hz

鈥?Various Frequency Divider Clocks Can Be Output for

LSIs Chips Connected

Ordering Information

PART

NUMBER

HI2555JCQ

CXD2555Q

TEMP.

RANGE (

o

C)

-20 to 75

-20 to 75

PACKAGE

48 Ld MPQF

48 Ld MPQF

PKG. NO.

Q48.12x12-S

Q48.12x12-S

Pinout

HI2555, CXD2555 (48 LEAD MQFP)

TOP VIEW

AOUT1+

AV

SS

3

WO

DASL1

DV

DD

DASL0

AIN1

AV

DD

1

AV

SS

1

SUB

AV

DD

3

AOUT1-

AV

SS

3

UCLK

XCLK

XV

DD

XTLI

XTLO

XV

SS

AV

SS

4

AOUT2-

AV

DD

4

1

2

3

4

5

6

7

8

9

10

48 47 46 45 44 43 42 41 40 39 38 37

36

35

34

33

32

31

30

29

28

27

NC

NC

XSL2

XSL1

XSL0

MLSL

MASL

DV

SS

SOUT

SIN

BCK

LRCK

MS

DV

DD

26

11

25

12

13 14 15 16 17 18 19 20 21 22 23 24

AV

SS

4

AV

SS

2

AIN2

AV

DD

2

AOUT2+

DV

SS

XMCK2

SUB

NC

TEST

CLR

NC

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 漏 Intersil Americas Inc. 2002. All Rights Reserved

4-301

File Number

4121.1

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