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| TK15411 75 VIDEO LINE DRIVER FEATURES s Superimpose Circuit for Two-Level (45 and 140 IRE) Character Generation s Fixed Gain (6 dB) s Internal 75 Driver with Clamp Circuit s Very Small Output Capacitor Using SAG Function Pin s Active High ON/OFF Control s Very Low Standby Current (typ. ISTBY 25 A) s Single +5 V Power Supply Operation APPLICATIONS s s s s s s Video Equipment Digital Cameras CCD Cameras TV Monitors Video Tape Recorders LCD Projectors DESCRIPTION Operating from a single +5 V supply, the TK15411 is a single-channel video line driver IC that takes a standard video analog input and provides a buffered analog output for driving a 150 load. The standard video input signal (1 VP-P typical) is internally clamped to 1.25 V and amplified 6 dB to produce 2 VP-P (typical) into a series 75 resistor and 75 cable load. The internal 1.5 k SAG function resistor provides gain compensation for low frequency signals. The built-in superimpose circuit provides two levels (45 and 140 IRE) of character generation to the video signal. During standby (Pin 5 grounded), the TK15411 consumes only 125 W of power. Nominal power dissipation (no input) is typically 73 mW. The TK15411M is available in the SOT23L-8 surface mount package. TK15411 INPUT OUTPUT 01S VCC SUPERIMPOSITION 2 SAG GND SUPERIMPOSITION 1 STANDBY BLOCK DIAGRAM VCC Logic 75 Driver 1.5 k ORDERING INFORMATION 5 k 5 k GND TK15411M Tape/Reel Code TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. Page 1 TK15411 ABSOLUTE MAXIMUM RATINGS Supply Voltage ........................................................... 6 V Operating Voltage Range .............................. 4.5 to 5.5 V Power Dissipation (Note 1) ................................ 200 mW Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ...................-25 to +85 C TK15411M ELECTRICAL CHARACTERISTICS Test conditions: VCC = 5.0 V, VIN = 1.0 VP-P, RL = 150 , TA = 25 C unless otherwise specified. SYMBOL ICC ISTBY IOS VTHL(SUPER) VTLH(SUPER) VTHL(STBY) VTLH(STBY) VCMP VCHA1 VCHA2 GVA DG DP fr PARAMETER Supply Current Standby Supply Current Standby Terminal Current Superimpose Threshold Voltage (High to Low) Superimpose Threshold Voltage (Low to High) Standby Threshold Voltage (High to Low) Standby Threshold Voltage (Low to High) Clamp Voltage Character Level 1 Character Level 2 Voltage Gain Differential Gain Differential Phase Frequency Response TEST CONDITIONS No input Pin 5 Grounded Pin 5 in Standby mode Pin 3, Pin 4 Pin 3, Pin 4 Pin 5 Operating to Standby mode Pin 5 Standby to Operating mode Pin 1 Input terminal Pin 7 SAG terminal Pin 7 SAG terminal fin = 1 MHz Staircase signal input Staircase signal input fin = 1 MHz / 5 MHz GND 2.00 GND 2.00 1.05 35 130 5.45 -3.0 -3.0 1.25 45 140 5.95 +1.3 +0.2 -0.4 MIN TYP 14.5 25.0 25.0 MAX 20.0 50.0 50.0 0.80 VCC 0.60 VCC 1.45 55 150 6.45 +3.0 +3.0 UNITS mA A A V V V V V IRE IRE dB % deg dB Note 1: Power dissipation is 200 mW in free air. Derate at 1.6 mW/C for operation above 25C. Page 2 January 2000 TOKO, Inc. TK15411 TEST CIRCUIT VCC TP5 TP4 VCC = 5.0 V + 33 F Input TP1 75 + 4.7 F + Output VOUT 2.0 = VP-P TP2 33 F + TP3 33 F 75 75 Output Truth Table Pin 3 L L H H Pin 4 L H L H Output Pin 1 VCHA1 VCHA2 VCHA2 MEASUREMENT METHOD 1. Supply Current (ICC) The Pin 2 current is measured with no input signal and the Standby Pin (Pin 5) open. 2. Standby Supply Current (ISTBY) The Pin 2 current is measured when the Standby Pin (Pin 5) is connected to ground. 3. Standby Terminal Current (IOS) The Pin 5 current is measured when the Standby Pin (Pin 5) is connected to ground. 4. Threshold Voltage (High to Low) (VTHL(STBY)) The Pin 5 voltage is measured at the point which changes the device from operating mode into standby mode. January 2000 TOKO, Inc. Page 3 TK15411 MEASUREMENT METHOD (CONT.) 5. Threshold Voltage (Low to High) (VTLH(STBY)) The Pin 5 voltage is measured at the point which changes the device from standby mode into operating mode. 6. Threshold Voltage (High to Low) (VTHL(SUPER)) The voltage at TP4 and TP5 is slowly decreased. The TP4 and TP5 voltage level is measured at the point at which the video signal is applied to TP2. 7. Threshold Voltage (Low to High) (VTLH(SUPER)) The voltage at TP4 and/or TP5 is slowly increased. The TP4 and TP5 voltage levels are measured at the point at which the appropriate character signal per the output truth table is applied to TP2. 8. Clamp Voltage (VCMP) The DC voltage at Pin 1 is measured with no input signal. 9. Character Level 1 (VCHA1) The character level 1 equation is as follows: VCHA1 = (V2 - V1)/(1/140) Where V1 is the measured voltage at TP3 when TP4 and TP5 are at a low level and V2 is the measured voltage at TP3 when TP4 is at a high level and TP5 is at a low level. (V2 is also the voltage measured at TP3 when TP4 and TP5 are both at high level.) 10. Character Level 2 (VCHA2) The character level 2 equation is as follows: VCHA2 = (V2 - V1)/(1/140) Where V1 is the measured voltage at TP3 when TP4 and TP5 are at a low level and V2 is the measured voltage at TP3 when TP4 and TP5 are at a high level. 11. Voltage Gain (GVA) The voltage gain equation is as follows: GVA = 20 log10 V2/V1 Where V1 is the input voltage at TP1 and V2 is the measured voltage at TP2. 12. Differential Gain (DG) The differential gain is measured at TP3 when a staircase waveform of 10 steps is applied to TP1. 13. Differential Phase (DP) The differential phase is measured at TP3 when a staircase waveform of 10 steps is applied to TP1. 14. Frequency Response (fr) The frequency response equation is as follows: fr = 20 log10 V2/V1 Where V1 is the measured TP3 voltage when the input frequency is set to 1 MHz and V2 is the measured TP3 voltage when the input frequency is set to 5 MHz. Page 4 January 2000 TOKO, Inc. TK15411 TYPICAL PERFORMANCE CHARACTERISTICS SUPPLY CURRENT VS. TEMPERATURE 17 VCC = 5.0 V, No Input SUPPLY CURRENT VS. SUPPLY VOLTAGE 17 TA = 25 C, No Input STANDBY SUPPLY CURRENT VS. TEMPERATURE 50 VCC = 5.0 V, No Input 16 ICC (mA) ICC (mA) 16 15 14 13 12 4.0 ISTBY (A) 40 30 20 10 0 -50 15 14 13 12 -50 0 TA (C) 50 100 4.5 5.0 VCC (V) 5.5 6.0 0 TA (C) 50 100 STANDBY SUPPLY CURRENT VS. SUPPLY VOLTAGE 50 TA = 25 C, No Input VOLTAGE GAIN VS. TEMPERATURE 8.0 VCC = 5.0 V, fIN = 1 MHz, VIN = 1 VP-P VOLTAGE GAIN VS. SUPPLY VOLTAGE 8.0 TA = 25 C, fIN = 1 MHz, VIN = 1 VP-P 40 ISTBY (A) 7.0 7.0 GVA (dB) 30 20 10 0 4.0 GVA (dB) 6.0 6.0 5.0 5.0 4.5 5.0 VCC (V) 5.5 6.0 4.0 -50 0 TA (C) 50 100 4.0 4.0 4.5 5.0 VCC (V) 5.5 6.0 FREQUENCY RESPONSE VS. TEMPERATURE 0.5 fIN = 1/5 MHz, VIN = 1 VP-P FREQUENCY RESPONSE VS. SUPPLY VOLTAGE 0.5 fIN = 1/5 MHz, VIN = 1 VP-P CLAMP VOLTAGE VS. TEMPERATURE 1.5 VCC = 5 V, Pin 1 Voltage 0.0 0.0 1.4 -0.5 -0.5 VCMP (V) 4.5 5.0 VCC (V) 5.5 6.0 fr (dB) fr (dB) 1.3 -1.0 -1.0 1.2 -1.5 -50 0 TA (C) 50 100 -1.5 4.0 1.1 -50 0 TA (C) 50 100 January 2000 TOKO, Inc. Page 5 TK15411 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) CLAMP VOLTAGE VS. SUPPLY VOLTAGE 1.5 TA = 25 C, Pin 1 Voltage CHARACTER LEVEL 1 VS. TEMPERATURE 55 VCC = 5 V, Pin 7 Level CHARACTER LEVEL 1 VS. SUPPLY VOLTAGE 55 TA = 25 C, Pin 7 Level 1.4 50 50 VCHA1 (IRE) -1.3 45 VCHA1 (IRE) 0 TA (C) CHARACTER LEVEL 2 VS. SUPPLY VOLTAGE 50 100 VCMP (V) 45 1.2 40 40 1.1 4.0 4.5 5.0 VCC (V) 5.5 6.0 35 -50 35 4.0 4.5 5.0 VCC (V) 5.5 6.0 CHARACTER LEVEL 2 VS. TEMPERATURE 150 VCC = 5 V, Pin 7 Level DIFFERENTIAL GAIN VS. TEMPERATURE 6.0 VCC = 5.0 V, VIN = 1 VP-P 150 TA = 25 C, Pin 7 Level 145 145 4.0 2.0 0.0 VCHA2 (IRE) VCHA2 (IRE) 140 140 135 135 130 -50 0 TA (C) 50 100 130 4.0 4.5 5.0 VCC (V) 5.5 6.0 DG (%) -2.0 -4.0 -50 0 TA (C) 50 100 DIFFERENTIAL GAIN VS. SUPPLY VOLTAGE 30 TA = 25 C, VIN = 1 VP-P DIFFERENTIAL PHASE VS. TEMPERATURE 6.0 4.0 VCC = 5.0 V, VIN = 1 VP-P DIFFERENTIAL PHASE VS. SUPPLY VOLTAGE 6.0 4.0 TA = 25 C, VIN = 1 VP-P 20 10 DP (deg) DG (%) 2.0 0.0 DP (deg) 2.0 0.0 -2.0 -4.0 4.0 0 -2.0 -10 4.0 4.5 5.0 VCC (V) 5.5 6.0 -4.0 -50 0 TA (C) 50 100 4.5 5.0 VCC (V) 5.5 6.0 Page 6 January 2000 TOKO, Inc. TK15411 PIN FUNCTION DESCRIPTION TERMINAL PIN NO. 1 INTERNAL EQUIVALENT CIRCUIT SYMBOL INPUT VOLTAGE 1.25 V VCC DESCRIPTION Luminance Input Terminal. The luminance input signal is clamped at 1.25 V. 1.25 V 2 3 4 VCC SUPERIMPOSITION 2 SUPERIMPOSITION 1 VCC VCC Power Supply Terminal Pin 3: Superimposition 2 Terminal. Pin 4: Superimposition 1 Terminal. A video signal, a character signal 1, or a character signal 2 can be selected by combining the logic levels of these two terminals. Standby Logic Terminal. The device is in the standby mode when Pin 5 is connected to Low. The device is in the operating mode when Pin 5 is connected to High or Open. 75 k 75 k 5 STANDBY 2.1 V VCC 200 k 5k 6 7 8 GND SAG OUTPUT GND 1.25 V 1.25 V VCC GND Terminal Pin 7: SAG Terminal. Pin 8: Output Terminal. The output is available to drive a 75 + 75 load. 1.5 k 5k January 2000 TOKO, Inc. Page 7 TK15411 PACKAGE OUTLINE SOT23L-8 0.45 Marking Information Marking 411 TK15411 8 5 marking 1.0 e 0.8 1 e 0.8 4 +0.15 - 0.05 Recommended Mount Pad 0.1 M 0.3 +0.3 3.5 - 0.1 (3.4) 0.3 2.2 1.4max 1.2 e1 3.0 0 - 0.1 +0.15 - 0.05 0.4 + 0.3 0.15 0.1 3.3 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 8 (c) 2000 Toko, Inc. All Rights Reserved IC-xxx-TK15411 0100O0.0K 15 max January 2000 TOKO, Inc. Printed in the USA |
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