PIN DESCRIPTIONS

Power Supply Connections

VD+ - Positive Digital Power, PIN 19.

Positive supply for the digital section. Nominally +5 volts.

GND - Ground, PIN 18.

Ground for the digital section.

Audio Input Interface

SCK - Serial Clock, PIN 6.

Serial clock for SDATA pin which can be configured (via the M0, M1, and M2 pins) as an

input or output, and can sample data on the rising or falling edge. As an output, SCK will

contain 32 clocks for every audio sample. As an input, it does not need to be continuous and

can be up to 15 MHz.

FSYNC - Frame Sync, PIN 7.

Delineates the serial data and may indicate the particular channel, left or right, and may be an

input or output. The format is based on M0, M1, and M2 pins.

SDATA - Serial Data, PIN 8.

Audio data serial input pin.

M0, M1, M2 - Serial Port Mode Select, PINS 21, 22, 23.

Selects the format of FSYNC and the sample edge of SCK with respect to SDATA.

Control Pins

RST - Master Reset, PIN 16.

When low, all internal counters are reset and the line drivers are disabled, pulling low.

CS8402A

CS BIT 7 / CS BIT 3

C7/C3

TRNPT/FC1 TRANSPARENT / FREQ. CTRL 1

PROFESSIONAL MODE

PRO

M2

SERIAL PORT MODE SELECT 2

CS BIT 1 / FREQ. CTRL. 0

C1/FC0

M1

SERIAL PORT MODE SELECT 1

CS BIT 6 / CS BIT 2

C6/C2

M0

SERIAL PORT MODE SELECT 0

MASTER CLOCK

MCK

TXP

TRANSMIT POSITIVE

SERIAL DATA CLOCK

SCK

VD+

POWER

FRAME SYNC

FSYNC

GND

GROUND

SERIAL INPUT DATA

SDATA

TXN

TRANSMIT NEGATIVE

VALIDITY INPUT

V

RST

MASTER RESET

CS SERIAL IN / SC FRAME CLOCK

C/SBF

CBL/SBC

CS BLOCK OUT / SC BIT CLOCK

USER DATA INPUT

UEM0/C9

EMPHASIS 0 / CS BIT 9

CS BIT 9 / CS BIT 15

C9/C15

EM1/C8

EMPHASIS 1 / CS BIT 8

1

2

3

4

5

6

7

8

9

10

11

12

13

14

24

23

22

21

20

19

18

17

16

15

CS8402A

DS60F1

25