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