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General Description

The MAX9232 deserializes three LVDS serial-data inputs into 21 single-ended LVCMOS/LVTTL outputs. A separate parallel-rate LVDS clock provides the timing for deserialization. The MAX9232 features spread-spectrum capability, allowing the output data and clock frequency to spread over a specified range to reduce EMI. The single-ended data and clock outputs are programmable for a frequency spread of ±2, ±4, or no spread. The spread-spectrum function is also available when the MAX9232 operates in non-DC-balanced mode. The modulation rate of the spread is 32kHz for a 33MHz LVDS clock input and scales linearly with frequency.

Features

? Programmable ±4, ±2, or OFF Spread-Spectrum Output for Reduced EMI

? Programmable DC Balance or Non-DC Balance

? DC Balance Allows AC-Coupling for Wider Input Common-Mode Voltage Range

? Spread Spectrum Operates in DC-Balanced or NonDC-Balanced Mode

? FIFO Reset During Vertical Blanking

? 16MHz-to-34MHz (DC-Balanced) and 20MHz-to-40MHz (Non-DC-Balanced) Operation

? High-Impedance Outputs when PWRDWN is Low Allow Output Busing

? Fail-Safe Inputs in Non-DC-Balanced Mode

? Separate Output Supply Pins Allow Interface to +1.8V, +2.5V, +3.3V, and +5V Logic

? LVDS Inputs Meet ISO 10605 ESD Protection at ±25kV Air Discharge and ±8kV Contact Discharge

? LVDS Inputs Meet IEC 61000-4-2 Level 4 ESD Protection at ±15kV Air and ±8kV Contact Discharge

? LVDS Inputs Conform to ANSI TIA/EIA-644 Standard

? +3.3V Main Power Supply

Applications

?? Automotive Navigation Systems

?? Automotive DVD Entertainment Systems

?? Digital Copiers

?? Laser Printers