CXD2555 Ver la hoja de datos (PDF) - Intersil

Número de pieza

componentes Descripción

Fabricante

CXD2555

1-Bit, AD/DA Converter For Audio Application

Intersil 

Block Diagram

HI2555, CXD2555

36 35 34 8

7 54

SOUT 30

LRCK 27

BCK 28

SIN 29

CLOCK GENERATOR/ TIMING CIRCUIT

→ S P

16

← S P

DIGITAL FILTER

(OVER SAMPLING

DECIMATION)

16

MAF1

16

MAF2

16

DAC1

32 33

16

RAM

16

10

ROM

DAC2

ADC1

ADC2

45 AIN1

16 AIN2

2 AOUT1(-)

48 AOUT1(+)

11 AOUT2(-)

13 AOUT2(+)

Pin Descriptions

PIN NO.

1

2

3

4

SYMBOL

AVDD 3

AOUT1(–)

AVSS 3

UCLK

5

XCLK

6

XVDD

7

XTLI

8

XTLO

9

XVSS

10

AVSS 4

11

AOUT2(-)

12

AVDD 4

12

AOUT2 (+)

14

AVSS 4

15

AVSS 2

16

AIN2

I/O

DESCRIPTION

-

Analog power supply for Channel-1 DA converter.

O Analog opposite-phase output of Channel-1 DA converter

-

Analog GND for Channel-1 DA converter.

O Outputs a 1/2 frequency divider of the clock input form the oscillator pin XTLI (Pin 7). User

clock output for externally connected ICs.

O 256 fS clock output. this provides the master clock for ICs operating in the slave mode when

multiple CXD255Qs are connected. (When XSL2 = Low)

-

Digital power supply for the master clock.

I

Crystal oscillator circuit input. Connects the crystal oscillator selected by the crystal selection

pins XSLO to 2 (Pins 34, 35, and 36). Used to input the master clock from external.

O Crystal oscillator circuit output. Connects the crystal oscillator selected by the crystal selection

pins XSLO to 2 (Pins 34, 35, and 36).

-

Digital GND for the master clock.

-

Analog GND for Channel-2 DA converter.

O Analog opposite-phase output for Channel-2 DA converter.

-

Analog power supply for Channel-2 DA converter.

O Analog in-phase output for Channel-2 DA converter.

-

Analog GND for Channel-2 DA converter.

-

Analog GND for Channel-2 AD converter.

I

Analog input for Channel-2 AD converter.

4-302

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