Programmable DC-Balanced 21-Bit Serializers

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 thin QFN packages.

Applications

* Automotive DVD Entertainment Systems * Automotive Navigation Systems * Digital Copiers * Laser Printers

* 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