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參數資料
| 型號： | T8531 |
| 元件分類： | Codec |
| 英文描述： | T8502 and T8503 Dual PCM Codecs with Filters |
| 中文描述： | T8502和T8503雙的PCM編解碼器與濾波器 |
| 文件頁數： | 1/48頁 |
| 文件大小： | 999K |
| 代理商： | T8531 |
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Preliminary Data Sheet
November 2000
T8531/T8532 Multichannel Programmable
Codec Chip Set
Features
I
Single 5 V power supply operation
I
Per-channel programmable transmit gain
— 25.6 dB range, better than 0.01 dB steps
I
Per-channel programmable receive gain
— 17.8 dB range, better than 0.01 dB steps
I
Per-channel programmable hybrid balance
I
Programmable termination impedances
I
Programmable
μ
-law, A-law, or linear PCM output
I
DTMF generator
I
DTMF receiver
I
Caller ID generator
I
Call progress tones generator
I
Automatic gain calibration
I
Programmable time-slot assignment with bit offset
I
Low-noise, balanced, receive SLIC interface
I
Few or no SLIC/codec interface components
required
I
Analog and digital loopbacks
I
Sigma-delta converters with dither noise reduction
I
Serial microcontroller control interface
I
Available in 64-pin MQFP and TQFP packages
General Description
The Multichannel Programmable Codec Chip Set is
comprised of the T8531 16-channel line card signal
processor and one or two custom T8532 octal A/D
and D/A converters. A ROM-coded tone plant is
included on the signal processor. Together these
devices achieve a highly integrated and highly pro-
grammable multichannel voice codec solution.
Software is provided to compute the gain and filter
coefficients required to program the codec.
5-3793F (F)
Figure 1. System Block Diagram
T8532
OCTAL
A/D
D/A
T8532
OCTAL
A/D
D/A
T8531
DIGITAL
SIGNAL
PROCESSOR
ASIC
VTX (8)
VRP (8)
VRN (8)
VTX (8)
VRP (8)
VRN (8)
2
3
2
3
CK16
VRTX (8)
VRTX (8)
PCM
INTERFACE
MICROPROCESSOR
INTERFACE
相關PDF資料 |
PDF描述 |
|---|---|
| T8532 | T8502 and T8503 Dual PCM Codecs with Filters |
| T8533 | T8533/34 Quad Programmable Line Card Signal Processor |
| T8534 | T8533/34 Quad Programmable Line Card Signal Processor |
| T8535B | T8535B/T8536B Quad Programmable Codec |
| T8536B | T8535B/T8536B Quad Programmable Codec |
相關代理商/技術參數 |
參數描述 |
|---|---|
| T8531A | 制造商:AGERE 制造商全稱:AGERE 功能描述:T8531A/8532 Multichannel Programmable Codec Chip Set |
| T8532 | 制造商:AGERE 制造商全稱:AGERE 功能描述:T8531A/8532 Multichannel Programmable Codec Chip Set |
| T8533 | 制造商:AGERE 制造商全稱:AGERE 功能描述:T8533/34 Quad Programmable Line Card Signal Processor |
| T85331G | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:Thick Film Super Low Profile SIP Resistor Networks |
| T85331J | 制造商:BITECH 制造商全稱:Bi technologies 功能描述:Thick Film Super Low Profile SIP Resistor Networks |
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