MAX3890ECB Maxim, MAX3890ECB Datasheet
MAX3890ECB
Manufacturer Part Number
MAX3890ECB
Description
+3.3V / 2.5Gbps / SDH/SONET 16:1 Serializer with Clock Synthesis and LVDS Inputs
Manufacturer
Maxim
Datasheet
1.MAX3890ECB.pdf
(12 pages)
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The MAX3890 serializer is ideal for converting 16-bit-
wide, 155Mbps parallel data to 2.5Gbps serial data in
ATM and SDH/SONET applications. Operating from a
single +3.3V supply, this device accepts low-voltage
differential-signal (LVDS) clock and data inputs for
interfacing with high-speed digital circuitry, and deliv-
ers PECL serial data and clock outputs. A fully integrat-
ed PLL synthesizes an internal 2.5GHz serial clock from
a 155.52MHz, 77.76MHz, 51.84MHz, or 38.88MHz ref-
erence clock. A loopback data output is provided to
facilitate system diagnostic testing.
The MAX3890 is available in the extended temperature
range (-40°C to +85°C) in a 64-pin TQFP exposed-
paddle (EP) package.
19-1498; Rev 0; 6/99
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.
2.5Gbps SDH/SONET Transmission Systems
2.5Gbps ATM/SONET Access Nodes
Add/Drop Multiplexers
Digital Cross-Connects
ATM Backplanes
GENERATION
OVERHEAD
155MHz REF. CLOCK INPUT
+3.3V, 2.5Gbps, SDH/SONET 16:1 Serializer
________________________________________________________________ Maxim Integrated Products
General Description
with Clock Synthesis and LVDS Inputs
THIS SYMBOL REPRESENTS A TRANSMISSION LINE
OF CHARACTERISTIC IMPEDANCE (Z
PDI0+ RCLK+ RCLK-
PDI0-
PDI15+
PDI15-
PCLKI+
PCLKI-
PCLKO+
PCLKO-
GND
Applications
FIL+
330nF
MAX3890
FIL-
CLKSET
SLBO+
0
= 50 ).
+3.3V
V
CC
SLBO-
* EP = Exposed Paddle
Pin Configuration appears at end of data sheet.
SCLKO+
SCLKO-
TTL
MAX3890ECB
SOS
SDO+
SDO-
Single +3.3V Supply
495mW Power Consumption
Exceeds ANSI, ITU, and Bellcore Specifications
155Mbps (16-bit wide) Parallel to 2.5Gbps Serial
Conversion
Clock Synthesis for 2.5Gbps
Multiple Clock Reference Frequencies
(155.52MHz, 77.76MHz, 51.84MHz, 38.88MHz)
LVDS Parallel Clock and Data Inputs
Additional High-Speed Output for System
Loopback Testing
PART
OPTIONAL CONNECTION TO MAX3880
FOR SYSTEM LOOPBACK TESTING.
130
82
Typical Operating Circuit
+3.3V
TEMP. RANGE
-40°C to +85°C
130
82
Ordering Information
82
130
+3.3V
130
82
MAX3867
+3.3V
PIN-PACKAGE
64 TQFP-EP*
V
CC
Features
1
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