TK15411 75 Ω VIDEO LINE DRIVER FEATURES APPLICATIONS ■ Superimpose Circuit for Two-Level (45 and 140 IRE) Character Generation ■ Fixed Gain (6 dB) ■ Internal 75 Ω Driver with Clamp Circuit ■ Very Small Output Capacitor Using SAG Function Pin ■ Active High ON/OFF Control ■ Very Low Standby Current (typ. ISTBY ≤ 25 µA) ■ Single +5 V Power Supply Operation ■ ■ ■ ■ ■ ■ Video Equipment Digital Cameras CCD Cameras TV Monitors Video Tape Recorders LCD Projectors DESCRIPTION TK15411 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 Ω 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 Ω resistor and 75 Ω cable load. The internal 1.5 kΩ 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 µW of power. Nominal power dissipation (no input) is typically 73 mW. OUTPUT INPUT 01S VCC SAG SUPERIMPOSITION 2 GND SUPERIMPOSITION 1 STANDBY BLOCK DIAGRAM The TK15411M is available in the SOT23L-8 surface mount package. VCC Logic 75 Ω Driver 1.5 kΩ ORDERING INFORMATION 5 kΩ TK15411M 5 kΩ GND 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 Ω, TA = 25 °C unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS ICC Supply Current No input 14.5 20.0 mA ISTBY Standby Supply Current Pin 5 Grounded 25.0 50.0 µA IOS Standby Terminal Current Pin 5 in Standby mode 25.0 50.0 µA VTHL(SUPER) Superimpose Threshold Voltage (High to Low) Pin 3, Pin 4 GND 0.80 V VTLH(SUPER) Superimpose Threshold Voltage (Low to High) Pin 3, Pin 4 2.00 VCC V VTHL(STBY) Standby Threshold Voltage (High to Low) Pin 5 Operating to Standby mode GND 0.60 V VTLH(STBY) Standby Threshold Voltage (Low to High) Pin 5 Standby to Operating mode 2.00 VCC V VCMP Clamp Voltage Pin 1 Input terminal 1.05 1.25 1.45 V VCHA1 Character Level 1 Pin 7 SAG terminal 35 45 55 IRE VCHA2 Character Level 2 Pin 7 SAG terminal 130 140 150 IRE GVA Voltage Gain fin = 1 MHz 5.45 5.95 6.45 dB DG Differential Gain Staircase signal input -3.0 +1.3 +3.0 % DP Differential Phase Staircase signal input -3.0 +0.2 +3.0 deg fr Frequency Response fin = 1 MHz / 5 MHz -0.4 dB Note 1: Power dissipation is 200 mW in free air. Derate at 1.6 mW/°C for operation above 25°C. Page 2 January 2000 TOKO, Inc. TK15411 TEST CIRCUIT VCC TP5 TP4 + VCC = 5.0 V Input 33 µF + TP1 75 Ω + 4.7 µF Output VOUT 2.0 = VP-P TP2 33 µF + TP3 33 µF 75 Ω 75 Ω Output Truth Table Pin 3 Pin 4 Output L L Pin 1 L H VCHA1 H L VCHA2 H H 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. SUPPLY VOLTAGE SUPPLY CURRENT VS. TEMPERATURE 17 17 14 40 ISTBY (µA) ICC (mA) 15 15 14 13 13 12 -50 0 50 12 4.0 100 30 20 10 4.5 5.0 5.5 0 -50 6.0 0 50 100 TA (°C) VCC (V) TA (°C) STANDBY SUPPLY CURRENT VS. SUPPLY VOLTAGE VOLTAGE GAIN VS. TEMPERATURE VOLTAGE GAIN VS. SUPPLY VOLTAGE 8.0 50 8.0 TA = 25 °C, No Input 40 20 6.0 5.0 10 4.5 5.0 5.5 0 50 4.0 4.0 100 4.5 5.0 5.5 VCC (V) TA (°C) VCC (V) FREQUENCY RESPONSE VS. TEMPERATURE FREQUENCY RESPONSE VS. SUPPLY VOLTAGE CLAMP VOLTAGE VS. TEMPERATURE 0.5 0.5 VCC = 5 V, Pin 1 Voltage 0.0 -0.5 1.4 VCMP (V) fr (dB) 0.0 -0.5 -1.0 -1.0 0 50 TA (°C) January 2000 TOKO, Inc. 100 -1.5 4.0 6.0 1.5 fIN = 1/5 MHz, VIN = 1 VP-P fIN = 1/5 MHz, VIN = 1 VP-P -1.5 -50 6.0 5.0 4.0 -50 6.0 TA = 25 °C, fIN = 1 MHz, VIN = 1 VP-P 7.0 GVA (dB) 30 0 4.0 VCC = 5.0 V, fIN = 1 MHz, VIN = 1 VP-P 7.0 GVA (dB) ISTBY (µA) VCC = 5.0 V, No Input 16 16 ICC (mA) 50 TA = 25 °C, No Input VCC = 5.0 V, No Input fr (dB) STANDBY SUPPLY CURRENT VS. TEMPERATURE 1.3 1.2 4.5 5.0 VCC (V) 5.5 6.0 1.1 -50 0 50 100 TA (°C) Page 5 TK15411 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) CHARACTER LEVEL 1 VS. TEMPERATURE CLAMP VOLTAGE VS. SUPPLY VOLTAGE 55 1.5 55 TA = 25 °C, Pin 1 Voltage 50 50 VCHA1 (IRE) VCHA1 (IRE) VCMP (V) -1.3 45 40 1.2 4.5 5.0 5.5 0 50 4.5 5.0 5.5 TA (°C) VCC (V) CHARACTER LEVEL 2 VS. TEMPERATURE CHARACTER LEVEL 2 VS. SUPPLY VOLTAGE DIFFERENTIAL GAIN VS. TEMPERATURE 150 DG (%) VCHA2 (IRE) VCHA2 (IRE) 140 135 135 130 -50 0 50 100 130 4.0 4.5 5.0 5.5 6.0 -4.0 -50 0 6.0 VCC = 5.0 V, VIN = 1 VP-P DP (deg) 10 2.0 0.0 0 6.0 -4.0 -50 2.0 0.0 -2.0 -2.0 5.5 TA = 25 °C, VIN = 1 VP-P 4.0 DP (deg) 4.0 20 100 DIFFERENTIAL PHASE VS. SUPPLY VOLTAGE 6.0 TA = 25 °C, VIN = 1 VP-P 50 TA (°C) DIFFERENTIAL PHASE VS. TEMPERATURE 30 VCC (V) 0.0 VCC (V) DIFFERENTIAL GAIN VS. SUPPLY VOLTAGE 5.0 2.0 -2.0 TA (°C) 4.5 VCC = 5.0 V, VIN = 1 VP-P 4.0 145 140 6.0 6.0 TA = 25 °C, Pin 7 Level 145 Page 6 35 4.0 100 VCC (V) VCC = 5 V, Pin 7 Level -10 4.0 45 40 35 -50 6.0 150 DG (%) TA = 25 °C, Pin 7 Level VCC = 5 V, Pin 7 Level 1.4 1.1 4.0 CHARACTER LEVEL 1 VS. SUPPLY VOLTAGE 0 50 TA (°C) 100 -4.0 4.0 4.5 5.0 5.5 6.0 VCC (V) January 2000 TOKO, Inc. TK15411 PIN FUNCTION DESCRIPTION TERMINAL INTERNAL EQUIVALENT CIRCUIT PIN NO. SYMBOL VOLTAGE 1 INPUT 1.25 V DESCRIPTION Luminance Input Terminal. The luminance input signal is clamped at 1.25 V. VCC 1.25 V 2 VCC 3 4 SUPERIMPOSITION 2 SUPERIMPOSITION 1 VCC Power Supply Terminal VCC 75 k 75 k 5 STANDBY 2.1 V VCC 200 k 5k 6 GND GND 7 8 SAG OUTPUT 1.25 V 1.25 V 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. GND Terminal Pin 7: SAG Terminal. VCC Pin 8: Output Terminal. The output is available to drive a 75 Ω + 75 Ω load. 1.5 k 5k January 2000 TOKO, Inc. Page 7 TK15411 PACKAGE OUTLINE Marking Information SOT23L-8 0.45 Marking 411 5 1.0 8 TK15411 e1 3.0 marking e 0.8 1 4 Recommended Mount Pad +0.15 - 0.05 e 0.8 0.3 0.1 M +0.3 3.5 - 0.1 2.2 15 max 1.2 +0.15 - 0.05 0 - 0.1 0.1 0.4 + 0.3 0.15 1.4max 0.3 (3.4) 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 © 2000 Toko, Inc. All Rights Reserved January 2000 TOKO, Inc. IC-xxx-TK15411 0100O0.0K Printed in the USA