T
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S E M I C O N D U C T O R, I N C .
The TQ8103 is a monolithic clock and data recovery (CDR) IC that receives
NRZ data, extracts the high-speed clock, and presents the separated data
and clock as its outputs. This device is designed specifically for SONET
OC-12 and SDH STM-4 applications at 622 Mb/s.
Its on-chip phase-locked loop (PLL) generates a stable 622.08 Mb/s
reference based upon an external 38.88 MHz TTL reference. The PLL is
based on a VCO constructed from integrated reactive components, which
form a low-jitter, high-Q differential tank circuit. Both frequency- and
phase-detect circuits reliably acquire and hold lock in worst-case SONET
jitter conditions and scrambling patterns. The lock-detect circuitry signals
when the CDR acquires frequency lock.
Typical SONET/SDH system applications for the TQ8103 include:
TQ8103
TELECOM
PRODUCTS
622 Mb/s Clock
& Data Recovery
Features
鈥?Single-chip CDR circuit for
622 Mb/s data
鈥?Exceeds Bellcore and ITU jitter
tolerance maps
鈥?Single-ended ECL input has loop-
through path for external 50 ohm
termination to minimize stubs
and reflections
鈥?Clock and data outputs are
differential ECL
鈥?Provides complete high-speed
OC-12/STM-4 solution when
used with TQ8101 or TQ8105
Mux/Demux/Framer/PLL
鈥?External loop filter requires
simple passive network
鈥?/div>
Maintains clock in absence of data
鈥?Transmission system transport cards
鈥?Switch and cross-connect line cards
鈥?ATM physical layer interfaces
鈥?Test equipment
鈥?Add/drop multiplexers
Figure 1. Typical Application
1000 pF
10K
鈩?/div>
SELCK
XTCKI
LOCK
SEL
V
TT
50
鈩?/div>
SINO
SINI
D
OUTP
D
OUTN
50
鈩?/div>
ECL data in
(single-ended)
鈥?28-pin leaded chip carrier
鈥?Can be used with a high-speed
external clock
V
REF
V
TT
38.88-MHz TTL
clock oscillator
CK
OUTP
CKREF
OUCHP
CK
OUTN
V
CTL
50
鈩?/div>
62
鈩?/div>
1 mF
1000 pF
V
TT
20K
鈩?/div>
For additional information and latest specifications, see our website:
www.triquint.com
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TQ8103相關(guān)型號(hào)PDF文件下載
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英文版
622 Mb/s Clock & Data Recovery
TRIQUINT
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英文版
622 Mb/s Clock & Data Recovery
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英文版
SONET/SDH Transceivers
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英文版
SONET/SDH Transceivers
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英文版
SONET/SDH Transceivers
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英文版
SONET/SDH Transceivers
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622/155 Mb/s SONET/SDH MDFP
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英文版
622/155 Mb/s SONET/SDH MDFP
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Clock/Data Recovery
ETC
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Clock/Data Recovery
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ATM Processor
ETC
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ATM Processor