It works like a fire hose: Maxim Integrated Products' MAX9220/MAX9222 21-bit LVDS deserializers segregate three LVDS serial data streams into 21 single-ended LVTTL/LVCMOS outputs. The serial-to-parallel converter uses a parallel-rate clock received with the LVDS data streams provides timing for deserialization.
Maxim (based in Sunnyvale, Calif.) offers two varieties: One variety, the MAX9220/MAX9222 have a falling-edge output strobe, while the
MAX9210*/MAX9212*/MAX9214/MAX9216* have rising-edge output strobes.
The MAX9220/MAX9222 feature a programmable DC balance, which allows AC-coupling for isolation between the serializer and deserializer. The devices decode data transmitted by any of the companion serializers (including the
MAX9209/MAX9211*/MAX9213/MAX9215*). The DC-balance feature can reduce bit errors in the deserializer, which come from shifts in the common mode (often caused by a ground shift).
Serialization reduces the number of wires or cable traces from 22 to 8, saving space and cost in system interconnect, cables, and backplanes. The deserialization converts the lines back to a parallel data format. The LVDS input signals meet the requirements of the ANSI TIA/EIA 644 LVDS standard.
The MAX9220/MAX9222, with their companion serializers, are promoted by Maxim for applications requiring high-MHz data rates, such as automotive navigation and entertainment systems, digital copiers, laser printers, network switches and routers, base stations, DSLAM, and central office switches.
The MAX9222 operates at a parallel-clock frequency of 16MHz to 66MHz in DC-balanced mode and 20MHz to 85MHz in non-DC-balanced mode. The MAX9220 operates at a parallel-clock frequency of 8MHz to 34MHz in DC-balanced mode and 10MHz to 40MHz in non-DC-balanced mode. The transition times of the single-ended outputs are increased on the MAX9220 for reduced EMI.
The MAX9220/MAX9222 require a single 3.3V plus/minus 10 percent supply, and are specified for operation from -40 degrees C to +85 degrees
C. The LVDS inputs and outputs meet the IEC 61000-4-2 Level 4 ESD
spec, meaning they'll withstand plus/minus 15kV for air discharge and plus/minus 8kV for contact discharge.
Both devices are available in 48-pin TSSOP and QFN packages. Prices start at $6.30 for the MAX9222 and $3.90 for the MAX9220 (1000-up, FOB USA).
For a preliminary datasheet, click here.
Otherwise, call Maxim Customer Service at 1-800-998-8800