MAX3890 +3.3V, 2.5Gbps, SDH/SONET 16:1 Serializer with Clock Synthesis and LVDS Inputs

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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 delivers PECL serial data and clock outputs. A fully integrated PLL synthesizes an internal 2.5GHz serial clock from a 155.52MHz, 77.76MHz, 51.84MHz, or 38.88MHz reference 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.

Key Features

Applications/Uses

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

	2.5Gbps ATM/SONET Access Nodes
	2.5Gbps SDH/SONET Transmission Systems
	Add/Drop Multiplexers
	ATM Backplanes
	Digital Cross-Connects

Key Specifications: Datacom Serializers/Deserializers

Part Number

Functions

Applications

Target Serial Operating Range (Gbps)

Supply Voltage (V)

Typ. Supply Current (mA)

Configuration

Parallel Interface Data Rate (Mbps)

Serial Interface Data Rate (Mbps)

Parallel Interface Logic Levels

Serial Interface Logic Levels

Number of Rx

Number of Tx

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX3890

•	Datacom Serializer

•

PON/FTTx

•	SDH/ SONET/ ATM/ DWDM/ PONS

1 to 4.5

3.3

175

16-to-1

155

2488

LVDS

Diff. PECL

Yes

TQFP/64

149

-40 to +85

$25.00 @ 1k

See All Datacom Serializers/Deserializers (16)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.