PCM3008

SLAS332 – APRIL 2001

3

www.ti.com

_

+

_

+

Delta

Sigma

Modulator

+

–

30 k

Ω

2

1

VINR

VCOM

+

0.47

µF

+

1

µF

Reference

Figure 1. Analog Front-End (right-channel)

Terminal Assignments

TERMINAL

NAME

NO.

I/O

DESCRIPTION

VCOM

1

–

ADC/DAC common decouple (see Note 1)

VINR

2

I

ADC analog input, R-channel.

VINL

3

I

ADC analog input, L-channel.

GND

4

–

Ground.

VCC

5

–

Power supply.

DEM0

6

I

De-emphasis control 0 (see Note 2)

DEM1

7

I

De-emphasis control 1 (see Note 2)

DOUT

8

O

Data output

DIN

9

I

Data input (see Note 2)

LRCK

10

I

Sampling clock input (see Note 2)

SYSCK

11

I

System clock input (see Note 2)

BCK

12

I

Bit clock input (see Note 2)

PDAD

13

I

ADC power down, active low (see Note 2)

PDDA

14

I

DAC power down, active low (see Note 2)

VOUTL

15

O

DAC analog output, L-channel.

VOUTR

16

O

DAC analog output, R-channel.

NOTES:

1. Connect decouple capacitor to GND.

2. Schmitt trigger input, open state can not be allowed because of no internal pullup or pulldown.