Programmable DC-Balance 21-Bit Deserializers

The MAX9210/MAX9214/MAX9220/MAX9222 deserialize three LVDS serial data inputs into 21 single-ended LVCMOS/LVTTL outputs. A parallel rate LVDS clock received with the LVDS data streams provides timing for deserialization. The outputs have a separate supply, allowing 1.8V to 5V output logic levels.

The MAX9210/MAX9214/MAX9220/MAX9222 feature programmable DC balance, which allows isolation between a serializer and deserializer using AC-coupling. Each deserializer decodes data transmitted by one of MAX9209/MAX9213 serializers.

The MAX9210/MAX9214 have rising-edge output strobes, and when DC balance is not programmed, are compatible with non-DC-balanced 21-bit deserializers such as the DS90CR216A and DS90CR218A. The MAX9220/MAX9222 have falling-edge output strobes.

Two frequency versions and two DC-balance default conditions are available for maximum replacement flexibility and compatibility with popular non-DC-balanced deserializers. The transition time of the single-ended outputs is increased on the low-frequency version parts (MAX9210/MAX9220) for reduced EMI. The LVDS inputs meet IEC 61000-4-2 Level 4 ESD specification, ±15kV for Air Discharge and ±8kV Contact Discharge.

The MAX9210/MAX9214/MAX9220/MAX9222 are available in a TSSOP package, and operate over the -40°C to +85°C temperature range.

Applications

* Digital Copiers * Laser Printers

* Programmable DC Balance or Non-DC Balance

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

* As Low as 8MHz Operation (MAX9210/MAX9220)

* Falling-Edge Output Strobe (MAX9220/MAX9222)

* Slower Output Transitions for Reduced EMI (MAX9210/MAX9220)

* High-Impedance Outputs when Active-Low PWRDWN is Low Allow Output Busing

* Pin Compatible with DS90CR216A/DS90CR218A (MAX9210/MAX9214)

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

* 5V Tolerant Active-Low PWRDWN Input

* PLL Requires No External Components

* Up to 1.785Gbps Throughput

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

* LVDS Inputs Meet IEC 61000-4-2 Level and ISO 10605 ESD Requirements

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

* Low-Profile 48-Lead TSSOP Package

* +3.3V Main Power Supply

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