Qualified for Automotive Applications

ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (CL = 200 pF, RL = 0)

2.7-V Operation

Two Differential Microphone Inputs, One

Differential Earphone Output, and One

Single-Ended Earphone Output

Programmable Gain Amplifiers for

Transmit, Receive, Sidetone, and Volume

Control

Earphone Mute and Microphone Mute

On-Chip I2C Bus, Which Provides a Simple,

Standard, Two-Wire Serial Interface With

Digital ICs

Programmable for 15-Bit Linear Data or

8-Bit Companded (μ-Law or A-Law) Data

Available in a 32-Pin Thin Quad Flatpack

(TQFP) Package

Designed for Analog and Digital Wireless

Handsets and Telecommunications

Applications

Dual-Tone Multifrequency (DTMF) and

Single Tone Generator

Pulse Density Modulated (PDM) Buzzer

Output

description

The voice-band audio processor (VBAP) is

designed to perform transmit encoding analog/

digital (A/D) conversion, receive decoding

digital/analog (D/A) conversion, and transmit and

receive filtering for voice-band communications

systems. The device operates in either the 15-bit

linear or 8-bit companded (μ-law or A-Law) mode,

which is selectable through the I2C interface. The

VBAP generates its own internal clocks from a

2.048-MHz master clock input.