描述 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.

特性 Features

? 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 (u-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
VBAP is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.