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參數(shù)資料
| 型號： | T8531A |
| 元件分類： | Codec |
| 英文描述： | T8531A/8532 Multichannel Programmable Codec Chip Set |
| 中文描述： | T8531A/8532多通道可編程解碼器芯片組 |
| 文件頁數(shù)： | 1/50頁 |
| 文件大小： | 888K |
| 代理商： | T8531A |
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Preliminary Data Sheet
September 2001
T8531A/T8532 Multichannel Programmable
Codec Chip Set
Features
I
Per-channel programmable gain and hybrid bal-
ance
I
Programmable termination impedances
I
Programmable
μ
-law, A-law, or linear PCM output
I
Tone plant:
— DTMF generator
— DTMF receiver
— Caller ID generator
— Call progress tones generator
I
Test utilities:
— Automatic gain calibration
— Tone generation
— dc generation
— dc measurement
— Variance computation
— Peak detection
I
Analog and digital loopbacks
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
Sigma-delta converters with dither noise reduction
I
Serial microcontroller control interface
I
Meets or exceeds ITU-T G.711—G.712 and rele-
vant
Telcordia Technologies
requirements
I
Available in 64-pin MQFP and TQFP packages
General Description
The multichannel programmable codec chip set is
comprised of the T8531A 16-channel line card signal
processor and one or two custom T8532 octal A/D
and D/A converters. A ROM-coded tone plant, with
line-test and self-test utilities, is included on the sig-
nal processor. Together these devices achieve a
highly integrated and highly programmable multi-
channel voice codec solution.
Software is provided to compute the gain and filter
coefficients required to program the codec.
5-3793i (F)
Figure 1. System Block Diagram
T8532
OCTAL
A/D
D/A
T8532
OCTAL
A/D
D/A
T8531A
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(guān)PDF資料 |
PDF描述 |
|---|---|
| T8531 | T8502 and T8503 Dual PCM Codecs with Filters |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| T8534 | 制造商:AGERE 制造商全稱:AGERE 功能描述:T8533/34 Quad Programmable Line Card Signal Processor |
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