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參數(shù)資料
| 型號(hào)： | PEF24901H |
| 英文描述： | ?Quad ISDN Echocancellation Circuit Digital Front-End for 4B3T Line Code? |
| 中文描述： | ？四整體數(shù)位服務(wù)網(wǎng)路Echocancellation電路數(shù)字前端4B3T線路碼的終結(jié)？ |
| 文件頁(yè)數(shù)： | 11/73頁(yè) |
| 文件大?。?/td> | 1618K |
| 代理商： | PEF24901H |
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PEB 2466
PEF 2466
Overview
Hardware Reference Manual
2
2001-02-20
1
Overview
The four-channel codec filter PEB 2466 SICOFI
4-μC is built around a central DSP-core
which provides independent filter structures for all channels. Its analog I/O pins are used
to connect to external subscriber line interface circuits (SLICs). Their signals are
internally routed to the analog-to-digital and digital-to-analog converters (ADC, DAC).
The signaling pins carry line status and control information to and from the SLICs. Two
programmable clock outputs are available. The SICOFI
4-μC connects to the digital
switching and transmission system through two PCM Highways. The digitized voice
band signals are available as A-Law or μ-Law codes within selectable 8-bit time slots.
The SICOFI
4-μC modes, features, and filter characteristics are programmed through a
serial interface to a microcontroller. The access mechanism is very simple, and can be
implemented with as few as three I/O ports. The PEB 2466 is available for standard
temperature range applications (0
°
C to +70
°
C); the PEF 2466 is available for extended
temperature range applications (-40
°
C to +85
°
C).
Figure 1
SICOFI
4-μC Architecture
SLIC 1
ADC - DAC
Signaling
SLIC 2
ADC - DAC
Signaling
SLIC 3
ADC - DAC
Signaling
SLIC 4
ADC - DAC
Signaling
Highway A
Highway B
Status and Control
Registers
CRAM
PLL,
Clocking
Serial Microcontroller Interface
t/r
t/r
t/r
t/r
PEB 2466
SICOFI4-μC
Digital Filters
Channel 1
Digital Filters
Channel 2
Digital Filters
Channel 3
Digital Filters
Channel 4
DSP Core
P
2466_201
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PEF24902 | ISDN Line Interface |
| PEF24902H | ?Quad ISDN Echocancellation Circuit Analog Front End - 2B1Q/4B3T Code? |
| PEF24911 | ISDN Line Interface |
| PEB3035-N | Telecomm Interface， Other/Special/Misc |
| PEB3035-P | Telecomm Interface， Other/Special/Misc |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEF24901H V2.2 | 制造商:Lantiq 功能描述: |
| PEF24901HV2.2 | 功能描述:ISDN 接口 ISDN RoHS:否 制造商:Texas Instruments 封裝:Tube |
| PEF24902 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN Line Interface |
| PEF24902H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:?Quad ISDN Echocancellation Circuit Analog Front End - 2B1Q/4B3T Code? |
| PEF24902HV2.1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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