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| 型号： | AM79Q021VC |
| 厂商： | ADVANCED MICRO DEVICES INC |
| 元件分类： | 编解码器 |
| 英文描述： | PCM CODEC, PQFP44 |
| 封装： | TQFP-44 |
| 文件页数： | 1/64页 |
| 文件大小： | 911K |
| 代理商： | AM79Q021VC |
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Publication# 19256 Rev: E Amendment: /0
Issue Date: December 1999
Am79Q02/021/031
Quad Subscriber Line Audio-Processing Circuit
(QSLAC) Devices
DISTINCTIVE CHARACTERISTICS
s Performs the functions of four codec/filters
s Software programmable:
— SLIC input impedance
— Transhybrid balance
— Transmit and receive gains
— Equalization (frequency response)
— Digital I/O pins
— Programmable debouncing on one input
— Time slot assigner
— Programmable clock slot and PCM transmit
clock edge options
s Standard microprocessor interface
s A-law, -law, or linear coding
s Single or Dual PCM ports available
— Up to 128 channels (PCLK at 8.192 MHz) per
PCM port
— Optional supervision on the PCM highway
s 1.536, 1.544, 2.048, 3.072, 3.088, 4.096, 6.144,
6.176, or 8.192 MHz master clock derived from
MCLK or PCLK
s Built-in test modes with loopback, tone
generation, and
P access to PCM data
s Low-power, 5.0 V CMOS technology
s 5.0 V only operation
s Mixed state (analog and digital) impedance
scaling
s Performance characteristics guaranteed over a
12 dB gain range
s Real Time Data register with interrupt (open
drain or TTL output)
s Supports multiplexed SLIC inputs
s Broadcast state
s 256 kHz or 293 kHz chopper clock for AMD SLICs
with switching regulator
s Maximum channel bandwidth for V.34 modems
GENERAL DESCRIPTION
The Am79Q02/021/031 Quad Subscriber Line Audio-
Processing Circuit (QSLAC) devices integrate the key
functions of analog linecards into high-performance,
very-programmable, four-channel codec-filter devices.
The QSLAC devices are based on the proven design
of AMD’s reliable SLAC device families. The
advanced ar chitecture of the Q SLAC devic es
implements four independent channels and employs
digital filters to allow software control of transmission,
thus providing a cost-effective solution for the audio-
processing function of programmable linecards.
Advanced submicron CMOS technology makes the
Am79Q02/021/031 QSLAC devices economical, with
both the functionality and the low power consumption
needed in linecard designs to maximize linecard
density at minimum cost. When used with four AMD
SLICs, a QSLAC device provides a complete software-
configurable solution to the BORSCHT functions.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AM79Q02JC | 制造商:Advanced Micro Devices 功能描述: |
| AM79Q031 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices |
| AM79Q031JC | 制造商:Advanced Micro Devices 功能描述: |
| AM79Q061JC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| AM79Q061VC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
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