TP3094
- Handles four voice channels
- Complete Codec and Filter system including:
- Transmit and receive channel filters
- A-law or µ-law companding encoder/decoder
- Power down mode for low power consumption
- Compatible to standard time division multiplexed PCM bus
- 8 bit mode, frame signal from external reference
- 32 bit mode, internal TSA, with consecutive TS
- Up to 128 channels (32 devices) can be cascaded
- Programmable functions (common for all 4 channels):
- A-law or µ-law
- Single MCLK clock,automatically selectable from 8.192MHz,
4.096MHz, 2.048MHz and 1.536/1.544MHz - Digital and Analog loopback test modes
- Designed for CCITT and LSSGR applications
- Single +5V power supply
- 44 lead PLCC surface mount package
- Maximize line card circuit density
- Use in Central Office, Loop Carrier, and PBX
equipment subscriber line and trunk cards - Wide operating temperature range –40°C to 85°C
The TP3094 is a monolithic PCM Codec and Filter device implemented using a digital signal processing architecture. It provides four voice channels, combining transmit bandpass and receive low pass channel filters with companding Alaw or m-law PCM encoders and decoders. The device is fabricated using Nationals advanced CMOS process.
The device includes anti-aliasing filters and sigma-delta converters dedicated to each channel,and by a common signal processing unit which performs all the remaining filtering and processingfor the four channels.
The TP3094 includes a flexible PCM digital interface, which allows the device to be connected to PCM busses of different formats. It can also be connected with other TP3094 devices in a cascade fashion, for a system with up to 128 POTS interfaces (when a 2.048MHz PCM bus is used).
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | TP3094 COMBO Quad PCM Codec/Filter 数据表 (Rev. B) | 2012年 8月 1日 |
设计和开发
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封装 | 引脚 | 下载 |
---|---|---|
PLCC (FN) | 44 | 查看选项 |
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