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MAX3876 Datasheet

  • MAX3876

  • " 2.5Gbps, Low-Power, +3.3V Clock- Recovery and Data-Retimin...

  • 936.59KB

  • Maxim   Maxim

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19-1631; Rev 0; 1/00
2.5Gbps, Low-Power, +3.3V
Clock Recovery and Data Retiming IC
General Description
The MAX3876 is a compact, low-power clock recovery
and data retiming IC for 2.488Gbps SDH/SONET appli-
cations. The fully integrated phase-locked loop (PLL)
recovers a synchronous clock signal from the serial
NRZ data input. The data is retimed by the recovered
clock. Differential CML outputs are provided for both
clock and data signals, and an additional 2.488Gbps
serial input is available for system loopback diagnostic
testing. The device also includes a TTL-compatible
loss-of-lock (LOL) monitor.
The MAX3876 is designed for both section-regenerator
and terminal-receiver applications in OC-48/STM-16
transmission systems. Its jitter performance exceeds all
of the SONET/SDH specifications.
This device operates from a +3.3V or +5.0V single sup-
ply over a -40擄C to +85擄C temperature range. Power
consumption is typically only 445mW with a +3.3V sup-
ply. The MAX3876 is available in a 32-pin TQFP pack-
age as well as in die form.
Features
o
Exceeds ANSI, ITU, and Bellcore SONET/SDH
Regenerator Specifications
o
440mW Power Dissipation (at +3.3V)
o
Clock Jitter Generation: 3.7mUI
RMS
o
+3.3V or +5V Single Power Supply
o
Fully Integrated Clock Recovery and Data Retiming
o
Additional High-Speed Input Facilitates System
Loopback Diagnostic Testing
o
Tolerates >2500 Consecutive Identical Digits
o
Loss-of-Lock Indicator
o
Differential CML Data and Clock Outputs
MAX3876
Applications
SDH/SONET Receivers and Regenerators
Add/Drop Multiplexers
Digital Cross-Connects
2.488Gbps ATM Receiver
Digital Video Transmission
SDH/SONET Test Equipment
Intrarack/Subrack Interconnects
PART
MAX3876EHJ
MAX3876E/D
Ordering Information
TEMP. RANGE
-40擄C to +85擄C
-40擄C to +85擄C
PIN-PACKAGE
32 TQFP
Dice*
*Dice
are designed to operate over this range, but are tested
and guaranteed at T
A
= +25擄C only. Contact factory for
availability.
Pin Configuration appears at end of data sheet.
Typical Application Circuit
+3.3V
0.01碌F
V
CC
FILT
PHOTO-
DIODE
0.01碌F
IN
V
CC
OUT+
SDI+
SDO+
SDO-
LOL
+3.3V
TTL
+3.3V
MAX3866
PREAMPLIFIER
OUT-
SDI-
SLBI+
SLBI-
SIS
FIL+
FIL-
SCLKO+
SCLKO-
MAX3876
MAX3831
4:1/1:4
TRANSCEIVER
SYSTEM
LOOPBACK
TTL
1碌F
________________________________________________________________
Maxim Integrated Products
1
For free samples and the latest literature: www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.

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