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78P2343JAT-IGT PDF预览

78P2343JAT-IGT

更新时间： 2024-11-08 19:52:19
品牌 Logo 应用领域
东电化 - TDK PC电信电信集成电路
页数 文件大小 规格书
36页 368K
描述
PCM Transceiver, 1-Func, PQFP100, LQFP-100

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78P2343JAT-IGT 数据手册

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78P2343JAT  
3-port E3/DS3/STS-1 LIU  
with Jitter Attenuator  
PRELIMINARY DATASHEET  
JULY 2003  
DESCRIPTION  
FEATURES  
The 78P2343JAT is  
a
low-power, 3-port  
•
Transmit and receive interfaces for E3, DS3 and  
DS3/E3/STS1 Line Interface Unit (LIU) with  
integrated Jitter Attenuator (JAT). It includes clock  
recovery and transmitter pulse shaping functions for  
applications using 75-ohm coaxial cable at distances  
up to 1350 feet. These applications include  
DSLAMs, T1,3/E1,3 digital multiplexers, SONET  
Add/Drop multiplexers, PDH equipment, DS3 to  
Fiber optic and microwave modems and ATM WAN  
access for routers and switches.  
STS-1 applications  
•
Designed for use with 75 ohm coaxial cable up  
to 1350 ft long end-to-end or up to 900 ft long  
from a DS3 cross-connect  
•
•
•
Receives DS3-high and DSX3 monitor signals  
Local and Remote loopback  
Selectable B3ZS/HDB3 ENDEC with line code  
violation detector  
•
•
Standards-based LOS function  
Optional serial-port based mode selection and  
channel status monitoring  
The receiver recovers clock and data from a B3ZS  
or HDB3 coded AMI signal. It can compensate for  
over 12dB of cable and 6dB of flat loss. The  
transmitter generates a signal that meets the  
•
•
Receiver AGC corrects for up to 6dB of flat loss  
Adaptive digital clock recovery (uses line-rate  
reference clock input)  
standard pulse shape requirements.  
It has a  
B3ZS/HDB3 ENDEC with a receive line code  
violation detector, a loop-back mode, an input  
receive MUX that can select a redundant channel, a  
clock polarity selection mode, and the ability to  
receive a DSX3 monitor signal.  
•
•
Receive output clock maintains nominal line-rate  
frequency at all times  
Fully integrated Jitter Attenuation function  
provided for all line rates (no external VCXO  
required)  
•
Jitter Attenuator configurable for transmit or  
receive path  
STANDARDS  
•
Jitter Tolerance: Telcordia GR-499-CORE [DS3]  
and GR-253-CORE [STS1], ITU-T G.823 [E3]  
and G.824 [DS3]  
•
•
Transmit line fault monitor  
Requires no external current-setting resistor or  
loop filter components  
•
•
Loss of Signal: ITU-T G.775  
•
•
Single 3.3V supply operation  
Jitter Transfer: ETSI TBR-24 1997 [E3];  
Telcordia GR-499-CORE [DS3] and GR-253-  
CORE [DS3/STS1]  
Available in 100-pin Exposed Pad JEDEC LQFP  
BLOCK DIAGRAM  
Controls Flags  
RLBK  
LBO E3 DS3  
Transmit  
TXNW  
TXEN  
Monitor  
TPOS  
TNEG  
TCLK  
B3ZS /  
HDB3  
LOUTP  
LOUTN  
Pulse  
Shaper  
Encoder  
Attenuator  
Jitter  
ENDEC  
Attenuator  
RPOS  
LINP  
LINN  
B3ZS /  
AGC  
Data  
Detector  
Adaptive  
Equalizer  
HDB3  
RNEG  
RCLK  
Decoder  
MON  
TCLKP  
RCLKP  
Power  
Distribution  
Signal  
Detector  
Clock  
Recovery  
LOS  
LLBKA  
LLBKB  
PDTX PDRX  
CKREF  
Signals from  
Adjacent Port  
Each Channel  
CS  
SCK  
SDI  
Master  
Bias  
Generator  
Control  
Registers  
CKREF  
SDO  
- 1 -  
1234567...36

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78P2343JAT-IGT/A07 TERIDIAN

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78P2343JAT-IGT/A07 TDK

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 		Telecom IC, PQFP100
78P2343JAT-IGT/A07R TDK

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78P2343JAT-IGT/A07R/F TERIDIAN

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 		Telecom IC, PQFP100,
78P2343JAT-IGT/F TERIDIAN

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 		PCM Transceiver, 1-Func, PQFP100, LEAD FREE, LQFP-100
78P2343JAT-IGT/F TDK

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 		PCM Transceiver, 1-Func, PQFP100, LEAD FREE, LQFP-100
78P2343JAT-IGTR TERIDIAN

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 		暂无描述
78P2343JAT-IGTR TDK

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 		PCM Transceiver, 1-Func, PQFP100, LQFP-100
78P2344-IEL TERIDIAN

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 		4-port E3/DS3/STS-1 LIU with Jitter Attenuator
78P2344-IEL TDK

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 		PCM Transceiver, 1-Func, PQFP100, LQFP-100

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