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| SPT9400 TRIPLE VIDEO DRIVER WITH Y/C & COMPOSITE OUTPUT FEATURES * * * * * * * * * * * * Triple Video Line Driver Chip With Y/C Inputs Composite and Y/C Outputs RL = 150 (75 Back-Terminated Cable) Internal Clamping and Bias Circuitry Power-Down Standby Mode Very Small 5.0 x 4.4 mm Package Low Power Dissipation: 168 mW 1 VP-P Input Range 6 dB Voltage Gain Flat Response fIN = 100 kHz to 10 MHz (typical) Crosstalk -40 dB (Typical) Single +5 Volt Power Supply APPLICATIONS * * * * * Video Editing Equipment Video Capture/Playback Cards Video Tape Recorders TV Monitor Sources Multimedia PCs GENERAL DESCRIPTION The SPT9400 is a triple video line driver chip that takes standard Y/C analog inputs and provides simultaneous Y/C and composite video analog outputs for driving 75 lines. Internal summing of the Y and C inputs is performed to produce composite video output. It is possible to achieve composite output on both the Y and CVBS outputs simultaneously by inputting a composite signal on the Y input. The luminance input is clamped at 1.25 V and amplified 6 dB to produce a 2 VP-P (typical) into a series 75 resistor and 75 cable load. The internal 1.5 k resistor provides gain compensation for low frequency signals. The chrominance input is biased at 2.0 V and amplified 6 dB to produce a 1.2 VP-P (typical), into a series 75 resistor and 75 cable load. The SPT9400 features a standby (active low) mode that draws only 113 W of power. Nominal power dissipation (no input) is typically 168 mW. It requires a single +5 V supply, operates over the commercial temperature range (0 to +70 C) and is available in a very small (5.0 x 4.4 mm) 12-lead Shrink Small Outline Package (SSOP). BLOCK DIAGRAM +VCC Y Input Driver 1.5 k Clamp 1.25 V Y Output Y Feedback 5 k 5 k Driver Reference + Standby Logic 1.5 k Clamp 1.25 V CVBS Output Standby CVBS Feedback 5 k 5 k Bias 2.0 V C Input Driver C Output GND Signal Processing Technologies, Inc. 4755 Forge Road, Colorado Springs, Colorado 80907, USA Phone: (719) 528-2300 FAX: (719) 528-2370 ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)(1) 25 C Supply Voltages VCC ....................................................................... +6.0 V Maximum Power Dissipation PD .................................................................................... 350 mW Thermal Impedance (TA=+25 C and above) CA ............................................................................ 2.8 mW/C Temperature Operating Temperature ................................. 0 to +70 C Storage Temperature ................................ -55 to +150 C Note: 1. Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal applied conditions in typical applications. ELECTRICAL SPECIFICATIONS TA = +25 C, VCC = +5.0 V, VIN = 1.0 VP-P video signal, RL = 150 , unless otherwise specified. PARAMETERS Power Supply Supply Current (ICC) VCC Voltage Power Dissipation Standby Current Standby Power Dissipation Digital Input Digital Input (Low) Digital Input (High) Bias Voltages Clamp Voltage Bias Voltage Dynamic Performance Voltage Gain Differential Gain Differential Phase Frequency Response Cross Talk TEST CONDITIONS No Input TEST LEVEL I IV I I I I I I I I I I V V V MIN SPT9400 TYP 33.5 5.0 168 22.5 113 0.1 2.0 1.25 2.0 6.0 -1.5 +0.2 0.0 -40 -40 MAX 45 5.5 225 50 UNITS mA V mW A W V V V V dB % Degrees dB dB dB 4.5 Pin 5 Grounded Pin 5 Grounded Standby Pin 5 Standby Pin 5 Y Input Pin 2 C Input Pin 6 0.0 1.8 1.05 1.7 5.5 -3.0 -3.0 0.3 VCC 1.45 2.3 6.5 +3.0 +3.0 Ramp Input 3.58 MHz Ramp Input 3.58 MHz fIN = 1 to 5 MHz YIN to COUT CIN to YOUT TEST LEVEL CODES All electrical characteristics are subject to the following conditions: All parameters having min/max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during production and Quality Assurance inspection. Any blank section in the data column indicates that the specification is not tested at the specified condition. TEST LEVEL I II III IV V VI TEST PROCEDURE 100% production tested at the specified temperature. 100% production tested at TA = +25 C, and sample tested at the specified temperatures. QA sample tested only at the specified temperatures. Parameter is guaranteed (but not tested) by design and characterization data. Parameter is a typical value for information purposes only. 100% production tested at TA = +25 C. Parameter is guaranteed over specified temperature range. SPT SPT9400 2 8/24/98 Figure 1 - Typical Interface Circuit VCC = 5.0 V 33 F + .01 F Y Input 1.0 VP-P 75 4.7 F + 1 2 6 dB 12 1.5 k Clamp 1.25 V 11 5 k 5 k 10 1.5 k Reference 5 + Standby Logic Clamp 1.25 V 9 5 k 5 k + 33 F + 33 F + 33 F + 33 F 75 75 Cable CVBS Output 75 75 75 Cable Y Output 75 6 dB Standby C Input 0.6 VP-P 75 4.7 F + Bias 2.0 V 6 6 dB 3,4,7 8 + 10 F 75 75 Cable C Output 75 SPT SPT9400 3 8/24/98 Figure 2 - CVBS Output (Multiburst Test) Figure 3 - CVBS Output (DP/DG) SPT SPT9400 4 8/24/98 Figure 4 - CVBS Output (Vector Scope) Figure 5 - CVBS Output (Bar and Line Time) SPT SPT9400 5 8/24/98 PACKAGE OUTLINE 12-Lead SSOP INCHES SYMBOL A B C D E F G H 0.264 0.004 0-10 0.012 0.047 typ 0.016 typ 0.031 typ 0.213 typ 0.028 MIN 0.165 0.189 0.012 typ 0.031 typ 0.000 0.047 0.008 0.063 0.067 max 0.248 0.010 MAX 0.181 0.205 MILLIMETERS MIN 4.2 4.8 0.3 typ 0.8 typ 0.0 1.2 6.7 0.10 0-10 0.3 1.2 typ 0.4 typ 0.8 typ 5.4 typ 0.7 0.2 1.6 1.7 max 6.3 0.25 MAX 4.6 5.2 A J K I J K L M N O B FG L M N C D E I O H Suggested Pad Layout SPT SPT9400 6 8/24/98 PIN ASSIGNMENTS PIN FUNCTIONS Name YIN Function Luminance (Y) Signal Input (typically 1 VP-P, AC coupled) Chrominance (C) Signal Input (typically 0.62 VP-P, AC coupled) Power Down Standby Mode Select (Low = Standby, Internal Pull-Up) Luminance (Y) Output (typically 2.0 VP-P, RL = 150 , AC coupled) Luminance Feedback Pin Composite Video (CVBS) Output (typically 2.0 VP-P, RL = 150 , AC coupled) Composite Video Feedback Pin Chrominance (C) Output (typically 1.3 VP-P, RL = 150 , AC coupled) +5.0 V Supply Ground VCC YIN GND GND Standby CIN 1 2 3 4 5 6 12 YOUT 11 YFB 10 CVBSOUT 9 8 7 CVBSFB COUT GND CIN Standby YOUT YFB CVBSOUT CVBSFB COUT VCC GND ORDERING INFORMATION PART NUMBER SPT9400SCR TEMPERATURE RANGE 0 to +70C PACKAGE TYPE 12-Lead SSOP Signal Processing Technologies, Inc. reserves the right to change products and specifications without notice. Permission is hereby expressly granted to copy this literature for informational purposes only. Copying this material for any other use is strictly prohibited. WARNING - LIFE SUPPORT APPLICATIONS POLICY - SPT products should not be used within Life Support Systems without the specific written consent of SPT. A Life Support System is a product or system intended to support or sustain life which, if it fails, can be reasonably expected to result in significant personal injury or death. Signal Processing Technologies believes that ultrasonic cleaning of its products may damage the wire bonding, leading to device failure. It is therefore not recommended, and exposure of a device to such a process will void the product warranty. SPT SPT9400 7 8/24/98 |
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