TP3057V-X中文资料Extended Temperature Serial Interface CODEC/Filter COMBO® Family数据手册TI规格书

描述 Description

General Description
The TP3054, TP3057 family consists of µ-law and A-law monolithic PCM CODEC/filters utilizing the A/D and D/A conversion architecture shown in Figure 1, and a serial PCM interface. The devices are fabricated using National’s advanced double-poly CMOS process (microCMOS).
The encode portion of each device consists of an input gain adjust amplifier, an active RC pre-filter which eliminates very high frequency noise prior to entering a switched-capacitor band-pass filter that rejects signals below 200 Hz and above 3400 Hz. Also included are auto-zero circuitry and a companding coder which samples the filtered signal and encodes it in the companded µ-law or A-law PCM format. The decode portion of each device consists of an expanding decoder, which reconstructs the analog signal from the companded µ-law or A-law code, a low-pass filter which corrects for the sin x/x response of the decoder output and rejects signals above 3400 Hz followed by a single-ended power amplifier capable of driving low impedance loads. The devices require two 1.536 MHz, 1.544 MHz or 2.048 MHz transmit and receive master clocks, which may be asynchronous; transmit and receive bit clocks, which may vary from 64 kHz to 2.048 MHz; and transmit and receive frame sync pulses. The timing of the frame sync pulses and PCM data is compatible with both industry standard formats.

特性 Features

■ −40˚C to +85˚C operation
■ Complete CODEC and filtering system (COMBO) including:
   — Transmit high-pass and low-pass filtering
   — Receive low-pass filter with sin x/x correction
   — Active RC noise filters
   — µ-law or A-law compatible COder and DECoder
   — Internal precision voltage reference
   — Serial I/O interface
   — Internal auto-zero circuitry
■ µ-law, 16-pin— TP3054
■ A-law, 16-pin— TP3057
■ Designed for D3/D4 and CCITT applications
■ ±5V operation
■ Low operating power— typically 50 mW
■ Power-down standby mode— typically 3 mW
■ Automatic power-down
■ TTL or CMOS compatible digital interfaces
■ Maximizes line interface card circuit density
■ Dual-In-Line or PCC surface mount packages
■ See also AN-370, “Techniques for Designing with CODEC/Filter COMBO Circuits”

应用 Application

■ ±5V operation
■ Low operating power— typically 50 mW
■ Power-down standby mode— typically 3 mW
■ Automatic power-down
■ TTL or CMOS compatible digital interfaces
■ Maximizes line interface card circuit density
■ Dual-In-Line or PCC surface mount packages
■ See also AN-370, “Techniques for Designing with CODEC/Filter COMBO Circuits”

简介

TP3057V-X属于集成电路（IC）的编解码器。由TI制造生产的TP3057V-X编解码器编解码器是用于通过压缩和解压缩来转换数据的半导体器件。数据压缩可提高传输速度并减少存储空间。某些编解码器提供高达 32 位的分辨率，并且分别提供多达 6 个或 8 个模数转换器和数模转换器。除三角积分调制外，还有 I2C、I2S、SPI、串行、HDA、S/DIF、PCM、USB、AC'97 和 SLIMbus 数据接口。