MAX3881 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – +3.3V, 2.488Gbps, SDH/SONET 1:16 Deserializer with Clock Recovery

19-1996; Rev 1; 12/01
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+3.3V, 2.488Gbps, SDH/SONET
1:16 Deserializer with Clock Recovery
General Description
The MAX3881 deserializer with clock recovery is ideal
for converting 2.488Gbps serial data to 16-bit-wide,
155Mbps parallel data for SDH/SONET applications.
Operating from a single +3.3V supply, this device
accepts high-speed serial-data inputs and delivers sin-
gle-ended PECL parallel data outputs and a differential
PECL parallel clock output for interfacing with digital
circuitry.
The MAX3881 includes a low-power clock recovery and
data retiming function for 2.488Gbps applications. The
fully integrated phase-locked loop (PLL) recovers a
synchronous clock signal from the serial NRZ data
input; the signal is then retimed by the recovered clock.
The MAX3881’s jitter performance exceeds all
SDH/SONET specifications. 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 MAX3881 is available in the extended temperature
range (-40°C to +85°C) in a 64-pin TQFP-EP package.
Features
o Single +3.3V Supply
o 530mW Operating Power
o Fully Integrated Clock Recovery and Data
Retiming
o Exceeds ANSI, ITU, and Bellcore Specifications
o Additional High-Speed Input Facilitates System
Loopback Diagnostic Testing
o 2.488Gbps Serial to 155Mbps Parallel Conversion
o Differential PECL Clock Output
o Single-Ended PECL Data Outputs
o Tolerates >2000 Consecutive Identical Digits
o Loss-of-Lock Indicator
PART
MAX3881ECB
*Exposed pad
Ordering Information
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
64 TQFP-EP*
Applications
2.488Gbps SDH/SONET Transmission Systems
Add/Drop Multiplexers
Digital Cross-Connects
Typical Application Circuit appears at end of data sheet.
TOP VIEW
Pin Configuration
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
GND 1
FIL+ 2
FIL- 3
VCC 4
PHADJ+ 5
PHADJ- 6
VCC 7
SDI+ 8
SDI- 9
VCC 10
SLBI+ 11
SLBI- 12
VCC 13
SIS 14
GND 15
GND 16
MAX3881
48 VCC
47 PD10
46 V_CC
45 _PD9
44 V_CC
43 PD8
42 _VCC
41 GND
40 V_CC
39 _PD7
38 V_CC
37 PD6
36 V_CC
35 PD5
34 V_CC
33 GND
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
*EXPOSED PAD IS CONNECTED TO GND.
TQFP-EP*
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.