General Description

The MAX9209/MAX9213 serialize 21 bits of LVTTL/LVCMOS parallel input data to three LVDS outputs. A parallel rate clock on a fourth LVDS output provides timing for deserialization.

The MAX9209/MAX9213 feature programmable DC balance, which allows isolation between the serializer and deserializer using AC-coupling. The DC balance circuits on each channel code the data, limiting the imbalance of transmitted ones and zeros to a defined range. The companion MAX9210/MAX9214 deserializers decode the data. When DC balance is not programmed, the serializers are compatible with non-DC-balanced, 21-bit serializers such as the DS90CR215 and DS90CR217.

Two frequency ranges and two DC-balance default conditions are available for maximum replacement flexibility and compatibility with existing non-DC-balanced serializers.

The MAX9209/MAX9213 are available in TSSOP and space-saving TQFN packages.

Features

♦ Programmable DC-Balanced or Non-DC-Balanced

   Operation

♦ DC Balance Allows AC-Coupling for Ground-Shift

   Tolerance

♦ As Low as 8MHz Operation

♦ Pin Compatible with DS90CR215 and DS90CR217

   in Non-DC-Balanced Mode

♦ Integrated 110Ω (DC-Balanced) and 410Ω (Non

   DC-Balanced) Output Resistors

♦ 5V Tolerant LVTTL/LVCMOS Data Inputs

♦ PLL Requires No External Components

♦ Up to 1.785Gbps Throughput

♦ LVDS Outputs Meet IEC 61000-4-2 and ISO 10605

   Requirements

♦ LVDS Outputs Conform to ANSI TIA/EIA-644

   LVDS Standard

♦ Low-Profile 48-Lead TSSOP and Space-Saving

   TQFN Packages

♦ -40°C to +85°C Operating Temperature Range

♦ +3.3V Supply

Applications

   Automotive Navigation Systems

   Automotive DVD Entertainment Systems

   Digital Copiers

   Laser Printers