Pin Functions

No. 5212-5/11

LC78833M, 78833V

Pin No.

Pin

Description

LC78833M

LC78833V

1

1

CH1OUT

Channel 1 analog output

2

2

REFH

High-level reference voltage

Normally connected to AGND through a capacitor.

—

3

NC

No connection

3

4

Vref H

High-level reference voltage input

4

5

Analog system power supply

5

6

LRCK

LR clock input

A high level specifies channel 1 and a low level channel 2.

6

7

DATA

Digital audio data input

Accepts data in a two’s complement MSB first format.

7

8

BCLK

Bit clock input

8

9

SYSCLK

System clock input (384fs)

—

10

NC

No connection

9

11

CKOUT

System clock output (384fs)

10

12

Digital system power supply

11

13

TSTOUT

Test output

12

14

TST

Test output

This pin must be connected to DGND in normal operation.

—

15

NC

No connection

De-emphasis filter on/off control input

13

16

EMP

A high level specifies on and a low level off.

This function supports a sampling frequency fs of 44.1 kHz.

14

17

INITB

Initialization input. A low level input to this pin initializes the IC.

15

18

DGND

Digital system ground

16

19

REFL

Low-level reference voltage

Normally connected to AGND through a capacitor.

17

20

AGND

Analog system power supply

18

21

Vref L

Low-level reference voltage input

—

22

NC

No connection

19

23

NC

No connection

20

24

CH2OUT

Channel 2 analog output