MAX3882A Maxim Integrated Products, MAX3882A Datasheet
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MAX3882A
Manufacturer Part Number
MAX3882A
Description
2.488Gbps 1:4 Demultiplexer
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX3882A.pdf
(13 pages)
www.DataSheet4U.com
The MAX3882A is a deserializer combined with clock
and data recovery and limiting amplifier ideal for con-
verting 2.488Gbps serial data to 4-bit-wide, 622Mbps
parallel data for SDH/SONET applications. The device
accepts serial NRZ input data as low as 10mV
2.488Gbps and generates four parallel LVDS data out-
puts at 622Mbps. Included is an additional high-speed
serial data input for system loopback diagnostic test-
ing. For data acquisition, the MAX3882A does not
require an external reference clock. However, if need-
ed, the loopback input can be connected to an external
reference clock of 155MHz or 622MHz to maintain a
valid clock output in the absence of input data transi-
tions. Additionally, a TTL-compatible loss-of-lock output
is provided. The device provides a vertical threshold
adjustment to compensate for optical noise generated
by EDFAs in WDM transmission systems. The
MAX3882A operates from a single +3.3V supply and
consumes 610mW.
The MAX3882A’s jitter performance exceeds all SDH/
SONET specifications. The device is available in a 6mm
✕
19-2718; Rev 2; 4/09
Typical Application Circuits appear at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
6mm, 36-pin TQFN package.
SDH/SONET Receivers and Regenerators
Add/Drop Multiplexers
Digital Cross-Connects
SDH/SONET Test Equipment
DWDM Transmission Systems
2.488Gbps 1:4 Demultiplexer with Clock and
________________________________________________________________ Maxim Integrated Products
General Description
Data Recovery and Limiting Amplifier
Applications
P-P
of
♦ No Reference Clock Required for Data Acquisition
♦ Serial Input Rate: 2.488Gbps
♦ Fully Integrated Clock and Data Recovery with
♦ Parallel Output Rate: 622Mbps
♦ Differential Input Range: 10mV
♦ Differential Input Range: 50mV
♦ 0.65UI High-Frequency Jitter Tolerance
♦ Loss-of-Lock (LOL) Indicator
♦ Wide Input Threshold Adjust Range: ±170mV
♦ Maintain Valid Clock Output in Absence of Data
♦ System Loopback Input Available for System
♦ Operating Temperature Range -40°C to +85°C
♦ Low Power Dissipation: 610mW at +3.3V
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
MAX3882AETX+
Limiting Amplifier and 1:4 Demultiplexer
without Threshold Adjust
with Threshold Adjust
Transitions
Diagnostic Testing
TOP VIEW
V
*EXPOSED PAD.
FREFSET
CC
V
_OUT
CAZ+
CAZ-
GND
V
CTRL
PART
V
V
REF
CC
CC
28
29
30
31
32
33
34
35
36
+
27
1
26
2
-40°C to +85°C
TEMP RANGE
25
3
Ordering Information
24
MAX3882A
4
TQFN
23
Pin Configuration
5
22 21 20
6
7
P-P
P-P
8
*EP
19
to 1.6V
to 600mV
9
PIN-PACKAGE
Features
36 TQFN-EP*
18
17
16
15
14
13
12
11
10
P-P
PCLK+
PCLK-
GND
V
V
FIL
V
GND
LREF
CC
CC
CC
_OUT
_VCO
_VCO
P-P
1