MAX9247 19-3955 Rev 4 4/12 27-Bit, 2.5MHz-to-42MHz DC-Balanced LVDS Serializer General Description Features Preemphasis Improves Eye Diagram and Signal The MAX9247 digital video parallel-to-serial converter Integrity at the Output serializes 27 bits of parallel data into a serial-data stream. Proprietary Data Encoding for DC Balance and Eighteen bits of video data and 9 bits of control data are Reduced EMI encoded and multiplexed onto the serial interface, reduc- ing the serial-data rate. The data-enable input determines Control Data Sent During Video Blanking when the video or control data is serialized. Five Control Data Inputs are Single-Bit-Error Tolerant The MAX9247 pairs with the MAX9248/MAX9250 dese- Programmable Phase-Shifted LVDS Signaling rializers to form a complete digital video serial link. Reduces EMI Interconnect can be controlled-impedance PCB traces or Output Common-Mode Filter Reduces EMI twisted-pair cable. Proprietary data encoding reduces EMI and provides DC balance. DC balance allows AC- Greater Than 10m STP Cable Drive coupling, providing isolation between the transmitting Wide 2% Reference Clock Tolerance and receiving ends of the interface. The LVDS output is ISO 10605 and IEC 61000-4-2 Level 4 internally terminated with 100. For operating frequen- ESD Protection cies less than 35MHz, the MAX9247 can also pair with Separate Input Supply Allows Interface to 1.8V the MAX9218 deserializer. to 3.3V Logic ESD tolerance is specified for ISO 10605 with 10kV +3.3V Core Supply Contact Discharge and 30kV Air-Gap Discharge. Space-Saving LQFP Package The MAX9247 operates from a +3.3V core supply and -40C to +85C and -40C to +105C Operating features a separate input supply for interfacing to 1.8V Temperature Ranges to 3.3V logic levels. This device is available in a 48-lead Ordering Information LQFP package and is specified from -40C to +85C or -40C to +105C. PART TEMP RANGE PIN-PACKAGE Applications MAX9247ECM+ -40C to +85C 48 LQFP Navigation System Displays MAX9247ECM/V+ -40C to +85C 48 LQFP In-Vehicle Entertainment Systems MAX9247GCM+ -40C to +105C 48 LQFP Video Cameras MAX9247GCM/V+ -40C to +105C 48 LQFP LCDs +Denotes a lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part. Pin Configuration TOP VIEW + GND 1 36 RNG0 V 2 35 RNG1 CCIN RGB IN10 3 34 V CCLVDS RGB IN11 4 33 OUT+ RGB IN12 OUT- 5 32 RGB IN13 6 31 LVDSGND RGB IN14 7 MAX9247 30 LVDSGND RGB IN15 8 29 CMF RGB IN16 9 28 PWRDWN RGB IN17 10 27 V CCPLL CNTL IN0 11 26 PLLGND CNTL IN1 12 25 PRE LQFP Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE GND 13 48 RGB IN9 V 14 47 RGB IN8 CC CNTL IN2 15 46 RGB IN7 CNTL IN3 16 45 RGB IN6 CNTL IN4 17 44 RGB IN5 CNTL IN5 18 43 RGB IN4 CNTL IN6 19 42 RGB IN3 CNTL IN7 20 41 RGB IN2 CNTL IN8 21 40 RGB IN1 DE IN 22 39 RGB IN0 PCLK IN 23 38 V CC I.C. 24 37 GND27-Bit, 2.5MHz-to-42MHz DC-Balanced LVDS Serializer ABSOLUTE MAXIMUM RATINGS V to GND........................................................-0.5V to +4.0V All Pins to GND ..............................................................200V CC Any Ground to Any Ground...................................-0.5V to +0.5V Human Body Model (R = 1.5k, C = 100pF) D S OUT+, OUT-, CMF to LVDSGND...........................-0.5V to +4.0V All Pins to GND ................................................................3kV OUT+, OUT- Short Circuit to LVDSGND ISO 10605 (R = 2k , C = 330pF) D S or V .............................................................Continuous Contact Discharge (OUT+, OUT-) to LVDSGND ...........10kV CCLVDS OUT+, OUT- Short Through 0.125F (or smaller), Air-Gap Discharge (OUT+, OUT-) to LVDSGND ...........30kV 25V Series Capacitor..........................................-0.5V to +16V IEC 61000-4-2 (R = 330, C = 150pF) D S RGB IN 17:0 , CNTL IN 8:0 , DE IN, Contact Discharge (OUT+, OUT-) to LVDSGND ...........10kV RNG0, RNG1, PRE, PCLK IN, Air-Gap Discharge (OUT+, OUT-) to LVDSGND ...........15kV PWRDWN to GND ...............................-0.5V to (V + 0.5V) Storage Temperature Range .............................-65C to +150C CCIN Continuous Power Dissipation (T = +70C) Junction Temperature......................................................+150C A 48-Lead LQFP (derate 20.8mW/C above +70C)....1666.7mW Lead Temperature (soldering,10s)..................................+300C ESD Protection Soldering Temperature (reflow) .......................................+260C Machine Model (R = 0 , C = 200pF) D S Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (V = +3.0V to +3.6V, R = 100 1%, PWRDWN = high, PRE = low, T = -40C to +105C, unless otherwise noted. Typical CC L A values are at V = +3.3V, T = +25C.) (Notes 1, 2) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SINGLE-ENDED INPUTS (RGB IN 17:0 , CNTL IN 8:0 , DE IN, PCLK IN, PWRDWN, RNG , PRE) V = 1.71V to < 3V (Note 3) 0.65 x V V + 0.3 CCIN CCIN CCIN High-Level Input Voltage V V IH V = 3.0V to 3.6V 2 0.3 + V CCIN CCIN V = 1.71V to < 3V (Note 3) -0.3 0.3 x V CCIN CCIN Low-Level Input Voltage V V IL V = 3.0V to 3.6V -0.3 +0.8 CCIN V = -0.3V to 0V IN V = 1.71V CCIN (MAX9247ECM), -100 +20 to 3.6V, V = -0.15V to 0V Input Current I IN A IN PWRDWN = (MAX9247GCM) high or low V = 0V to (V + 0.3V) -20 +20 IN C C IN Input Clamp Voltage V I = -18mA -1.5 V CL CL LVDS OUTPUTS (OUT+, OUT-) Differential Output Voltage V Figure 1 250 335 450 mV OD Change in V Between OD V Figure 1 20 mV OD Complementary Output States Common-Mode Voltage V Figure 1 1.125 1.29 1.475 V OS Change in V Between OS V Figure 1 20 mV OS Complementary Output States Output Short-Circuit Current I V or V = 0V or 3.6V -15 8 +15 mA OS OUT+ OUT- Magnitude of Differential I V = 0V 5.5 15 mA OSD OD Output Short-Circuit Current V = 0V, OUT+ V = 3.6V OUT- Output High-Impedance PWRDWN = low I -1 +1 A OZ Current or V = 0V CC V = 3.6V , OUT + V = 0V OUT- 2 MAX9247