SM5879AV

NIPPON PRECISION CIRCUITS—4

PIN DESCRIPTION

Number

Name

I/O

Description

1

DVDD

I-

Digital supply pin.

2

TEST

I

Input for testing LSI. Test mode when HIGH.

3

P/M

I

Parallel/microcontroller setting selection pin. Parallel setting when HIGH.

4

AVDDR

-

Right-channel analog supply pin.

5

RO

O

Right channel analog output pin.

6

AVSSR

-

Right-channel analog ground pin.

7

TO1

O

Test mode output. Normally LOW.

8

AVSSL

-

Left-channel analog ground pin.

9

LO

O

Left-channel analog output pin.

10

AVDDL

O

Left-channel analog supply pin.

11

MUTEO

O

Infinity-zero detection output

12

DVSS

-

Digital ground pin

13

CKO

O

Oscillator clock output. 16.9344 MHz.

14

XVSS

-

Crystal oscillator ground pin

15

XTI

I

Crystal oscillator or 16.9344-MHz external clock input pin

16

XTO

O

Crystal oscillator output pin

17

XVDD

-

Crystal oscillator supply pin

18

MUTE/ MLEN

I

P/M=H; soft mute control pin. Mute is active when HIGH.

P/M=L; microcontroller interface clock

19

DEEM/ MCK

I

P/M=H; deemphasis control pin. Deemphasis is ON when HIGH.

P/M=L; microcontroller interface clock

20

BB1/ MDT

I

P/M=H; bass boost setting switch pin 1

P/M=L; microcontroller interface serial data

21

BB2/ BBON

IO

P/M=H; bass boost setting switch pin 2

P/M=L; bass boost detection output

22

DI

I

Serial data input pin

23

BCKI

I

Bit clock input pin

24

LRCI

I

Sample rate clock (fs) input pin. Left channel when HIGH, and right channel when LOW.