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MAX3675 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX3675
Description  622Mbps, Low-Power, 3.3V Clock-Recovery and Data-Retiming IC with Limiting Amplifier
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX3675 Datasheet(HTML) 1 Page - Maxim Integrated Products

 
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___________________________________________________ Typical Operating Circuit
_____________________General Description
The MAX3675 is a complete clock-recovery and data-
retiming IC incorporating a limiting amplifier. It is
intended for 622Mbps SDH/SONET applications and
operates from a single +3.3V supply.
The MAX3675 has two differential input amplifiers: one
accepts PECL levels, while the other accepts small-sig-
nal analog levels. The analog inputs access the limiting
amplifier stage, which provides both a received-signal-
strength indicator (RSSI) and a programmable-threshold
loss-of-power (LOP) monitor. Selecting the PECL amplifier
disables the limiting amplifier, conserving power. A loss-
of-lock (LOL) monitor is also incorporated as part of the
fully integrated PLL.
________________________Applications
SDH/SONET Transmission Systems
SDH/SONET Access Nodes
Add/Drop Multiplexers
ATM Switches
Digital Cross-Connects
____________________________Features
o Single +3.3V or +5.0V Power Supply
o Complies with ANSI, ITU, and Bellcore
SDH/SONET Specifications
o Low Power: 215mW at +3.3V
o Selectable Data Inputs, Differential PECL or
Analog
o Received-Signal-Strength Indicator (RSSI)
o Loss-of-Power and Loss-of-Lock Monitors
o Differential PECL Clock and Data Outputs
o No External Reference Clock Required
622Mbps, Low-Power, 3.3V Clock-Recovery
and Data-Retiming IC with Limiting Amplifier
________________________________________________________________
Maxim Integrated Products
1
VCC
ZO = 50Ω
100
100k
INREF
FILT
OUT+
CIN
0.01
µF
CIN
0.01
µF
COLC
33nF
CF
47nF
+3.3V
220pF
100pF
PHOTO-
DIODE
ADI+
DDI-
DDI+
SDO+
SDO-
0.1
µF
CLOL
0.01
µF
0.01
µF
ADI-
CFILT OLC+ OLC-
R1
R2
GND
RSSI
INV
VTH LOP
LOL
INSEL
PHADJ+ PHADJ- FIL+
52.3
1%
2.2
µF
FIL-
OUT-
GND
COMP
IN
ZO = 50Ω
+3.3V
VCC
SCLKO+
SCLKO-
ZO = 50Ω
ZO = 50Ω
+3.3V
+3.3V
82
82
130
130
ZO = 50Ω
ZO = 50Ω
+3.3V
82
82
130
130
MAX3675
MAX3664
19-1258; Rev 2; 11/98
PART
MAX3675ECJ
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
32 TQFP
_________________Ordering Information
Pin Configuration appears at end of data sheet.
*Contact factory for availability. Dice are designed to operate
from -40°C to +85°C, but are tested and guaranteed only at
Tj = +45°C.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
EVALUATION
KIT MANUAL
AVAILABLE
MAX3675EHJ
-40°C to +85°C
5mm 32 TQFP
MAX3675E/D
-40°C to +85°C
Dice*


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