ZXFV4583 SYNC SEPARATOR WITH VARIABLE FILTER DEVICE DESCRIPTION FEATURES AND BENEFITS The ZXFV4583 provides the ability to separate out PAL, NTSC, SECAM video synchronization signals for a wide variety of TV Variable filter for optimal accuracy and CRT display systems, standard and non-standard. Sync outputs: composite, horizontal, vertical, back porch, odd/even Flexibility arises from the use of just three external resistors to adapt to each application. One resistor No-signal detector controls a fully integrated internal color carrier filter On chip sample / hold capacitors with variable bandwidth. This filter avoids disturbance from the color carrier, permitting accurate threshold +5V single supply slicing for timing extraction. Default vertical output where there are no serration pulses A second resistor controls the voltage threshold for Pin and layout compatible with part EL4583 in loss of signal detection after a time-out interval. The SO16N surface mount package third resistor controls the timing functions. APPLICATIONS DC restoration for displays is facilitated by the Back Porch synch output, which can be used to drive an Digital image capture external circuit to clamp the blanking voltage to a fixed level. Video input systems requiring separation of picture timing ORDERING INFORMATION Video distribution Part Number Container Increment CCTV surveillance ZXFV4583N16TA Reel 7 500 Digital multimedia ZXFV4583N16TC Reel 13 2500 Timing for black level clamp CONNECTION DIAGRAM ISSUE 3 - NOVEMBER 2003 1 SEMICONDUCTORSZXFV4583 ABSOLUTE MAXIMUM RATINGS Supply voltage V -0.5V to +7V CC Inputs to ground* -0.5V to V +0.5V CC Operating temperature range -40 C to 85 C Storage -65 C to +150 C Operating ambient junction temperature T 150 C** JMAX **The thermal resistance from the semiconductor die to ambient is typically 120 C/W when the SO16 package is mounted on a PCB in free air. The power dissipation of the device when loaded must be designed to keep the device junction temperature below T JMAX. *During power-up and power-down, these voltage ratings require that signals be applied only when the power supply is connected. ELECTRICAL CHARACTERISTICS V = 5V, R = 681k ,R = 22k ,R = 82k ,T =25 C unless otherwise stated. CC SET FILT NOSIG amb Test level: P = 100% production test C = Characterized only PARAMETER CONDITIONS TEST MIN TYP MAX UNIT DC Characteristics Supply current P 2 4.5 6.5 mA Clamp voltage at FILTIN Pin 4 unloaded P 1.2 1.35 1.5 V Discharge current at FILTIN Pin 4, Vin = 2V pk-pk C 1 A Discharge current at FILTIN Pin 4, no signal C 3 6 12 A Clamp charge current at FILTIN Pin 4, Vin = 1V pk-pk P 2 3 4 mA Clamp voltage at FVIDIN Pin 8 unloaded P 1.2 1.35 1.5 V Discharge current at FVIDIN Pin 8, Vin = 2V pk-pk C 1 Discharge current at FVIDIN Pin 8, no signal C 3 6 12 Clamp charge current at FVIDIN Pin 8, Vin = 1V pk-pk P 2 3 4 mA R voltage, pin 12 P 1.5 1.75 2 V SET R voltage, pin 1 P 0.35 0.5 0.65 V FILT RNOSIG current, pin 2 P 1.5 2.5 3.5 A Logic output low voltage, V I = 1.6mA P 0.35 0.8 V OL OL ISSUE 3 - NOVEMBER 2003 2 SEMICONDUCTORS