MAX9235 19-0849 Rev 1 12/07 10-Bit LVDS Serializer General Description Features The MAX9235 serializer transforms 10-bit-wide parallel Stand-Alone Serializer (vs. SERDES) Ideal for LVCMOS/LVTTL data into a serial high-speed, low-volt- Unidirectional Links age differential signaling (LVDS) data stream. The seri- alizer typically pairs with deserializers like the Framing Bits for Deserializer Resync Allow Hot MAX9206, which receives the serial output and trans- Insertion Without System Interruption forms it back to 10-bit-wide parallel data. LVDS Serial Output Rated for Point-to-Point The MAX9235 transmits serial data at speeds up to Applications 450Mbps over PCB traces or twisted-pair cables. Since the clock is recovered from the serial data stream, Wide Reference Clock Input Range clock-to-data and data-to-data skew that would be pre- 16MHz to 45MHz sent with a parallel bus are eliminated. The MAX9235 serializer requires no external compo- Low 31mA Supply Current nents and no control signals and can lock to a 16MHz 10-Bit Parallel LVCMOS/LVTTL Interface to 45MHz system clock. The serializer output is held in high impedance until the device is fully locked to the Up to 450Mbps Payload Data Rate local system clock. Small 16-Pin TQFN (3mm x 3mm) Package The MAX9235 operates from a single +3.3V supply, is specified for operation from -40C to +105C, and is available in a 16-pin TQFN (3mm x 3mm) package. Ordering Information PIN- REF CLOCK PKG Applications PART PACKAGE RANGE (MHz) CODE Lane Departures Rear View Cameras M AX 9235ETE + 16 TQFN-EP* 16 to 45 TI633-5 Security Cameras Production Line Monitoring +Denotes a lead-free package. Note: The device is specified over the -40C to +105C temper- ature range. *EP = Exposed pad. Pin Configuration and Functional Diagram appear at end of data sheet. Typical Application Circuit LVDS OUT+ IN+ 10 10 100 100 IN OUT OUT- IN- PCB OR TWISTED PAIR REFCLK TCLK EN TIMING AND TIMING AND PLL PLL CONTROL LOCK CONTROL RCLK CLOCK RECOVERY RCLK R/F MAX9235 MAX9206 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. INPUT LATCH PARALLEL-TO-SERIAL SERIAL-TO-PARALLEL OUTPUT LATCH10-Bit LVDS Serializer ABSOLUTE MAXIMUM RATINGS V to GND.........................................-0.3V to +4.0V Storage Temperature Range .............................-65C to +150C CC IN , TCLK to GND ......................................-0.3V to (V + 0.3V) Junction Temperature......................................................+150C CC OUT+, OUT- to GND .............................................-0.3V to +4.0V Operating Temperature Range .........................-40C to +105C Output Short-Circuit Duration.....................................Continuous Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) ESD Protection (Human Body Model, OUT+, OUT-) ...........8kV A 16-Pin TQFN (derate 14.7mW/C above +70C) ......1177mW ESD Protection (Human Body Model, IN , TCLK) ...............2kV 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 = 50 1%, C = 10pF, T = -40C to +105C. Typical values are at V = +3.3V and T = +25C, CC L L A CC A unless otherwise noted.) (Notes 1, 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LVCMOS/LVTLL LOGIC INPUTS (IN0 TO IN9, EN, TCLK) High-Level Input Voltage V 2.0 V V IH CC Low-Level Input Voltage V GND 0.8 V IL Input Current I V = 0 or V -20 +20 A IN IN CC LVDS OUTPUTS (OUT+, OUT-) R = 100 600 735 950 L Differential Output Voltage V Figure 1 mV OD R = 50 250 370 470 L Change in V Between OD V Figure 1 1 35 mV OD Complementary Output States R = 100 1.025 1.265 1.375 L Output Offset Voltage V Figure 1 V OS R = 50 1.125 1.265 1.375 L Change in V Between OS V Figure 1 3 35 mV OS Complementary Output States OUT+ or OUT- = GND, Output Short-Circuit Current I -13 -15 mA OS IN0 to IN9 = EN = V CC Power-Off Output Current I V = 0, V or V = 0 or 3.6V -10 +10 A OX CC OUT+ OUT- POWER SUPPLY R = 100 or 50 16MHz 22 35 L Supply Current I worst-case pattern mA CC (Figures 2, 4) 45MHz 31 45 2 MAX9235