TWL1102

VOICE-BAND AUDIO PROCESSOR (VBAP

™)

SLVS264 – NOVEMBER 1999

1

POST OFFICE BOX 655303

Differential Earphone Output, and One

Single-Ended Earphone Output

Transmit, Receive, Sidetone, and Volume

Control

Standard, Two-Wire Serial Interface With

Digital ICs

8-Bit Companded (

µ-Law or A-Law) Data

Handsets and Telecommunications

Applications

Single Tone Generator

Output

description

The voice-band audio processor (VBAP) is designed to perform the transmit encoding analog/digital (A/D)

conversion and receive decoding digital/analog (D/A) conversion, together with transmit and receive filtering

for voice-band communications systems. The device operates in either the 15-bit linear or 8-bit companded

the VBAP generates its own internal clocks.

PBS PACKAGE

(TOP VIEW)

31

30

29

28

27

9

10

PCMO

PCMI

SCL

SDA

NC

NC

EAR1ON

EAR1OP

EAR2O

32

26

11

12

13

14

15

16

25

1

2

3

45

67

8

24 23 22 21 20 19 18 17

NC – No internal connection

This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These

circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,

Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than maximum-rated

voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device

should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level,

preferably either VCC or ground. Specific guidelines for handling devices of this type are contained in the publication Guidelines for

Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.

Copyright

© 1999, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

VBAP is a trademark of Texas Instruments Incorporated.