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MAX9244 Dataheets PDF



Part Number MAX9244
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description (MAX9242 - MAX9246) 21-Bit Deserializers
Datasheet MAX9244 DatasheetMAX9244 Datasheet (PDF)

www.DataSheet4U.com 19-3954; Rev 0; 1/06 21-Bit Deserializers with Programmable Spread Spectrum and DC Balance General Description The MAX9242/MAX9244/MAX9246 deserialize three LVDS serial-data inputs into 21 single-ended LVCMOS/ LVTTL outputs. A separate parallel-rate LVDS clock provides the timing for deserialization. The MAX9242/ MAX9244/MAX9246 feature spread-spectrum capability, allowing the output data and clock frequency to spread over a specified range to reduce EMI. The single-ended d.

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www.DataSheet4U.com 19-3954; Rev 0; 1/06 21-Bit Deserializers with Programmable Spread Spectrum and DC Balance General Description The MAX9242/MAX9244/MAX9246 deserialize three LVDS serial-data inputs into 21 single-ended LVCMOS/ LVTTL outputs. A separate parallel-rate LVDS clock provides the timing for deserialization. The MAX9242/ MAX9244/MAX9246 feature 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 MAX9242/MAX9244/ MAX9246 operate in non-DC-balanced mode. The modulation rate of the spread is 32kHz for a 33MHz LVDS clock input and scales linearly with frequency. The singleended outputs have a separate supply, allowing +1.8V to +5V output logic levels. The MAX9242/MAX9244/MAX9246 feature programmable DC balance, allowing isolation between a serializer and deserializer using AC-coupling. The MAX9242/ MAX9244/MAX9246 operate with the MAX9209/ MAX9213 serializers and are available with a risingedge strobe (MAX9242) or falling-edge strobe (MAX9244/MAX9246). The LVDS inputs meet ISO 10605 ESD specifications with ±30kV Air-Gap Discharge and ±6kV Contact Discharge ratings. The MAX9242/MAX9244/MAX9246 are available in a 48-pin TSSOP package and operate over the -40°C to +85°C temperature range. Features ♦ Programmable ±4%, ±2%, or OFF Spread-Spectrum Output for Reduced EMI ♦ Programmable DC-Balanced or Non-DC-Balanced Modes ♦ DC Balance Allows AC-Coupling for Wider Input Common-Mode Voltage Range ♦ Spread Spectrum Operates in DC-Balanced or Non-DC-Balanced Mode ♦ π / 4 Deskew by Oversampling (MAX9242/MAX9244) ♦ 16MHz-to-34MHz (DC-Balanced) and 20MHz-to40MHz (Non-DC-Balanced) Operation (MAX9242/MAX9244) ♦ 6MHz-to-18MHz (DC-Balanced) and 8MHz-to-20MHz (Non-DC-Balanced) Operation (MAX9246) ♦ Rising-Edge (MAX9242) or Falling-Edge (MAX9244/MAX9246) Output Strobe ♦ High-Impedance Outputs when PWRDWN is Low Allow Output Busing ♦ Fail-Safe Inputs in Non-DC-Balanced Mode ♦ Separate Output Supply Allows Interface to +1.8V, +2.5V, +3.3V, and +5V Logic ♦ LVDS Inputs Meet ISO 10605 ESD Protection at ±30kV Air-Gap Discharge and ±6kV Contact Discharge ♦ LVDS Inputs Meet IEC 61000-4-2 Level 4 ESD Protection at ±15kV Air-Gap Discharge and ±8kV Contact Discharge ♦ LVDS Inputs Conform to ANSI TIA/EIA-644 Standard ♦ +3.3V Main Power Supply MAX9242/MAX9244/MAX9246 Applications Automotive Navigation Systems Automotive DVD Entertainment Systems Digital Copiers Laser Printers Selector Guide FREQUENCY RANGE PART STROBE EDGE Rising Falling Falling OVERSAMPLING Yes Yes No NON-DC BALANCE (MHz) 20 to 40 20 to 40 8 to 20 DC BALANCE (MHz) 16 to 34 16 to 34 6 to 18 Ordering Information PART MAX9242EUM MAX9244EUM MAX9246EUM TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 48 TSSOP 48 TSSOP 48 TSSOP PKG CODE U48-1 U48-1 U48-1 MAX9242 MAX9244 MAX9246 Devices are available in lead-free packaging. Specify lead free by adding a + symbol at the end of the part number when ordering. Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 21-Bit Deserializers with Programmable Spread Spectrum and DC Balance MAX9242/MAX9244/MAX9246 ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) VCC, LVDSVCC, PLLVCC .......................................-0.5V to +4.0V VCCO......................................................................-0.5V to +6.0V RxIN_, RxCLKIN_ ..................................................-0.5V to +4.0V PWRDWN ..............................................................-0.5V to +6.0V SSG, DCB...................................................-0.5V to (VCC + 0.5V) RxOUT_, RxCLKOUT ...............................-0.5V to (VCCO + 0.5V) Continuous Power Dissipation (TA = +70°C) 48-Pin TSSOP (derate 16mW/°C above +70°C) ........1282mW ESD Protection Human Body Model (RD = 1.5kΩ, CS = 100pF) All Pins to GND .............................................................±2.5kV IEC 61000-4-2 (RD = 330Ω, CS = 150pF) LVDS Inputs to GND (Air-Gap Discharge).....................±15kV LVDS Inputs to GND (Contact Discharge).......................±8kV ISO 10605 (RD = 2.0kΩ, CS = 330pF) LVDS Inputs to GND (Air-Gap Discharge).....................±30kV LVDS Inputs to GND (Contact Discharge).......................±6kV Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute .


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