CS4340A

4

DS590PP2

1. PIN DESCRIPTION

Pin Name

#

Pin Description

RST

1

Reset

(Input) - Powers down device.

SDIN

2

Serial Audio Data

(Input) - Input for two’s complement serial audio data.

SCLK

3

Serial Clock

(Input) -Serial clock for the serial audio interface.

LRCK

4

Left Right Clock

(Input) - Determines which channel, Left or Right, is currently active on the

serial audio data line.

MCLK

5

Master Clock

(Input) - Clock source for the delta-sigma modulator and digital filters.

DIF1

DIF0

6

7

Digital Interface Format

(Input) - Defines the required relationship between the Left Right

Clock, Serial Clock and Serial Audio Data.

DEM

8

De-emphasis Control

(Input) - Selects the standard 15

µs/50µs digital de-emphasis filter

response for the 44.1 kHz sample rate.

FILT+

9

Positive Voltage Reference

(Output) - Positive voltage reference for the internal

sampling circuits.

VQ

10

Quiescent Voltage

(Output) - Filter connection for internal quiescent reference voltage.

REF_GND

11

Reference Ground

(Input) - Ground reference for the internal sampling circuits.

AOUTR

AOUTL

12

15

Analog Outputs

(Output) - The full scale analog output level is specified in the

Analog Characteristics

table.

AGND

13

Analog Ground

(Input)

VA

14

Power

(Input) - Positive power for the analog, digital and serial audio interface sections.

MUTEC

16

Mute Control

(Output) - Control signal for an optional mute circuit.

15

2

14

3

13

4

16

1

11

6

10

7

9

8

12

5

RST

MUTEC

SDIN

AOUTL

SCLK

VA

LRCK

AGND

MCLK

AOUTR

DIF1

REF_GND

DIF0

VQ

DEM

FILT+