78P2352 반도체 회로 부품 판매점
Dual Channel OC-3/ STM1-E/ E4 LIU
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 TDK Semiconductor |
DESCRIPTION
The 78P2352 is TDK’s second generation LIU for
155 Mbit/s SDH/SONET (OC-3, STS-3, or STM-1)
and 140Mbit/s PDH (E4) applications. The device is
a dual channel, single chip solution that includes an
integrated CDR in the transmit path for flexible NRZ
to CMI conversion. The device can interface to 75Ω
coaxial cable using CMI coding or directly to a fiber
optics module using NRZ coding. The 78P2352 is
compliant with all respective ANSI, ITU-T, and
Telcordia standards for jitter tolerance, generation,
and transfer.
APPLICATIONS
• Central Office Interconnects
• DSLAMs
• Add Drop Multiplexers (ADMs)
• PDH/SDH test equipment
BLOCK DIAGRAM
78P2352www.DataSheet4U.com
Dual Channel
OC-3/ STM1-E/ E4 LIU
TARGET DATASHEET
MARCH 2003
FEATURES
• G.703 compliant line interface for 139.264 Mbps
or 155.52 Mbps CMI-coded coax transmission.
• LVPECL compatible line interface for 155.52
Mbps NRZ-coded fiber applications.
• Integrated adaptive CMI equalizer and CDR in
receive path.
• Serial, LVPECL-compatible system interface
with integrated CDR in transmit path for NRZ to
CMI conversion.
• 4-bit parallel CMOS system interface with
master/slave Tx clock modes.
• Configurable via HW control pins or 4-wire µP
interface
• Operates from a single reference clock input.
• Compliant with ANSI T1.105.03-1994; ITU-T
G.751, G.813, G.823, G.825, G.958; and
Telcordia GR-253-CORE for jitter performance.
• Provides Loss of Lock (LOL), CMI Line Code
Violation (LCV), and G.775 compliant Loss of
Signal (LOS) detection.
• Receiver Monitor Mode
• Operates from a single 3.3V supply
• 128-pin TQFP (JEDEC LQFP) package
SIxDP/N
SIxCKP/N
PIxCK
PIx[3:0]D
PTOxCK
SOxCKP/N
SOxDP/N
POx[3:0]D
POxCK
Lock Detect
Tx CDR
FIFO
EACH CHANNEL: Tx
CMI
Encoder
CMI
Decoder
CMI-LCV
Detect
Rx CDR
Lock Detect
EACH CHANNEL: Rx
Adaptive
Eq.
G.775
LOS
Detect
TXxCKP/N
CMIxP/N
ECLxP/N
RXxP/N
1
78P2352 Dual Channel OC-3/STM1-E/E4 Line Interface Unit
TABLE OF CONTENTS
FUNCTIONAL DESCRIPTION
MODE SELECTION
REFERENCE CLOCK
RECEIVER OPERATION
Receiver Monitor Mode
Loss of Signal / Loss of Lock
TRANSMITTER OPERATION
Serial Modes
Parallel Modes
Transmit Driver
Clock Synthesizer
POWER-DOWN FUNCTION
LOOPBACK MODES
POWER-ON RESET
SERIAL CONTROL INTERFACE
PROGRAMMABLE INTERRUPTS
REGISTER DESCRIPTION
REGISTER ADDRESSING
REGISTER TABLE
LEGEND
GLOBAL REGISTERS
ADDRESS 0-0: MASTER CONTROL REGISTER
ADDRESS 0-1: INTERRUPT CONTROL REGISTER
PORT-SPECIFIC REGISTERS
ADDRESS N-0: MODE CONTROL REGISTER
ADDRESS N-1: SIGNAL CONTROL REGISTER
ADDRESS N-2: ADVANCED CONTROL REGISTER 1
ADDRESS N-3: ADVANCED CONTROL REGISTER 2
ADDRESS N-4: MODE CONTROL REGISTER 2
ADDRESS N-5: STATUS MONITOR REGISTER
PIN DESCRIPTION
LEGEND
TRANSMITTER PINS
RECEIVER PINS
REFERENCE AND STATUS PINS
CONTROL PINS
SERIAL-PORT PINS
POWER AND GROUND PINS
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PDF 파일 내의 페이지 : 총 30 페이지
제조업체: TDK Semiconductor
( tdk )
78P2352 data
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[ 78P2352.PDF ]
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
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