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參數(shù)資料
| 型號： | T7290A |
| 廠商： | Lineage Power |
| 英文描述： | DS1/T1/CEPT/E1 Line Interface(DS1/T1/CEPT/E1 線接口) |
| 中文描述： | DS1/T1/CEPT/E1線路接口（DS1/T1/CEPT/E1線接口） |
| 文件頁數(shù)： | 23/24頁 |
| 文件大?。?/td> | 420K |
| 代理商： | T7290A |
Data Sheet
April 1998
T7290A DS1/T1/CEPT/E1 Line Interface
23
Lucent Technologies Inc.
T7290A Migration from T7290
The T7290A is a replacement for the T7290 family of devices that includes the T7290-EL, T7290-PL, T7290-EL2,
and T7290-PL2. The following list describes the functional changes made to the T7290 to produce the
T7290A.
Modification of an existing T7290 application may be required
.
I
The TBS input of the T7290A directly controls the TBS function. The TBS function of the T7290 is gated by chip
select (
CS
).
I
The transmitter short circuit (TSC) output alarm has been eliminated; however, the transmit drivers are still pow-
ered down under short-circuit conditions. The pin is renamed as output loss of signal (OUT-LOS) and indicates
when either the transmit clock (TCLK) or the smoothing clock (SCLK) output of the jitter attenuator is absent.
I
Loopback 1 (LP1) has been modified to route signals through the jitter attenuator only. The MODE2 pin must be
set high for this loopback to operate (jitter attenuator on).
I
The digital loss-of-signal (DLOS) functionality is now compatible for use in systems that must be compliant with
Bellcore TR-TSY-000009.
I
The loss-of-signal (LOS) output indication is renamed as input loss of signal (IN-LOS) and is now the ORed func-
tion of analog loss of signal (ALOS) and digital loss of signal (DLOS) regardless of the loopback setting.
I
The frequency acquisition mode is enabled when a digital loss-of-signal (DLOS) condition occurs, in which case
the receive clock (RCLK) is frequency-locked/phase-locked to the external clock (EXCLK).
I
Improved ITU-T G.703 interference immunity for CEPT mode operation.
DS98-190TIC Replaces DS97-197TIC to Incorporate the Following Updates
1. Page 3, Figure 1, Block Diagram, updated.
2. Page 21, 28-Pin, Plastic SOJ, changed dimensions to millimeters.
3. Page 22, 28-Pin, Plastic DIP, changed dimensions to millimeters.
4. Page 22, corrected Device Code.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T7295-1 | E3 Integrated Line Receiver(E3 集成線接收器) |
| T7295-6 | DS3/SONET STS-1 Integrated Line Receiver(DS3/SONET STS-1 集成線接收器) |
| T7296 | Integrated Line Transmitter(集成PCM線傳送器) |
| T7502 | Dual PCM Codec with Filters(帶濾波器的雙PCM編解碼器) |
| T7503 | Dual PCM Codec with Filters(帶濾波器的雙PCM編解碼器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T-7290A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T7290A DS1/T1/CEPT Line Interface |
| T-7290A-EL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T7290A DS1/T1/CEPT Line Interface |
| T-7290A--EL | 制造商:Alcatel-Lucent 功能描述:DATACOM, PCM TRANSCEIVER, PDSO28 |
| T7290A-EL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T7290A DS1/T1/CEPT Line Interface |
| T-7290A--EL-DT | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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