TK15412 75 Ω VIDEO LINE DRIVER FEATURES APPLICATIONS ■ 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) ■ 2 Input/1 Output Video Switch ■ Single +5 V Power Supply Operation ■ ■ ■ ■ ■ ■ Video Equipment Digital Cameras CCD Cameras TV Monitors Video Tape Recorders LCD Projectors DESCRIPTION TK15412 Operating from a single +5 V supply, the TK15412 is a single-channel video line driver IC that takes two standard video analog inputs and provides one buffered analog output for driving a 150 Ω load. The TK15412 features a built-in 2 input/1 output video switch on the input. The selected video input signal (1VP-P typical) is internally clamped at 1.25 V and amplified 6 dB to produce 2 VP-P (typical) into a series 75 Ω resistor and 75 Ω cable load. During standby (Pin 5 grounded), the TK15412 consumes only 125 µW of power. Nominal power dissipation (no input) is typically 73 mW. The TK15412M is available in the SOT23L-8 surface mount package. OUTPUT INPUT_A 01S VCC SAG INPUT_B GND STANDBY CHANGE-OVER SW BLOCK DIAGRAM VCC 75 Ω Driver 1.5 kΩ ORDERING INFORMATION 5 kΩ TK15412M 5 kΩ GND Tape/Reel Code TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. Page 1 TK15412 ABSOLUTE MAXIMUM RATINGS Storage Temperature Range ................... -55 to +150 °C Operating Temperature Range ...................-25 to +85 °C Supply Voltage ........................................................... 6 V Operating Voltage Range .............................. 4.5 to 5.5 V Power Dissipation (Note 1) ................................ 200 mW TK15412M 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(SW) Switch Threshold Voltage (High to Low) Pin 4 GND 0.80 V VTLH(SW) Switch Threshold Voltage (Low to High) 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, Pin 3 Input terminal 1.05 1.25 1.45 V GVA Voltage Gain Pin 1, Pin 3 fIN = 1 MHz 5.45 5.95 6.45 dB DG Differential Gain Pin 1, Pin 3 Staircase signal -3.0 +1.6 +3.0 % DP Differential Phase Pin 1, Pin 3 Staircase signal -3.0 +0.2 +3.0 deg fr Frequency Response Pin 1, Pin 3 fIN = 1 MHz / 5 MHz -0.3 dB CT1 Cross Talk 1 InputA - Output fIN = 1 MHz -65 dB C T2 Cross Talk 2 InputB - Output fIN = 1 MHz -70 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. TK15412 TEST CIRCUIT VCC TP4 + VCC = 5.0 V 33 µF Input A + TP1A 75 Ω 4.7 µF + + TP1B 75 Ω Output VOUT = 2.0 VP-P TP2 4.7 µF 33 µF Input B + TP3 33 µF 75 Ω 75 Ω Switch Truth Table Pin 4 Output L Pin 1 H Pin 3 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. Standby 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. 5. Standby 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. January 2000 TOKO, Inc. Page 3 TK15412 MEASUREMENT METHOD (CONT.) 6. Switch Threshold Voltage (High to Low) (VTHL(SW)) The TP4 voltage is decreased very slowly. The TP4 voltage level is measured at the point where the TP1A signal is applied to TP2 and the TP1B signal is stopped from TP2. 7. Switch Threshold Voltage (Low to High) (VTLH(SW)) The TP4 voltage is increased very slowly. The TP4 voltage level is measured at the point where the TP1A signal is stopped at TP2 and the TP1B signal is applied to TP2. 8. Clamp Voltage (VCMP) The DC voltage at Pin 1 and Pin 3 is measured with no input signal. 9. Voltage Gain (GVA) The voltage gain equation is as follows: GVA = 20 log10 V2/V1 Where V1 is the input voltage at TP1A and TP1B, and V2 is the measured voltage at TP2. 10. Differential Gain (DG) The differential gain is measured at TP3 when a staircase waveform of 10 steps is applied to TP1A and TP1B. 11. Differential Phase (DP) The differential phase is measured at TP3 when a staircase waveform of 10 steps is applied to TP1A and TP1B. 12. 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. 13. Cross Talk 1 (CT1) The cross talk 1 equation is as follows: CT1 = 20 log10 V1/V2 When TP4 is connected to a High level, V1 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1A. V2 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1B. 14. Cross Talk 2 (CT2) The cross talk 2 equation is as follows: CT2 = 20 log10 V1/V2 When TP4 is connected to a Low level, V1 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1B. V2 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1A. Page 4 January 2000 TOKO, Inc. TK15412 TYPICAL PERFORMANCE CHARACTERISTICS SUPPLY CURRENT VS. TEMPERATURE 17 50 17 TA = 25 °C, No Input VCC = 5.0 V, No Input 40 14 ISTBY (µA) 15 13 15 14 0 50 12 4.0 100 30 20 10 13 12 -50 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 50 8.0 8.0 TA = 25 °C, No Input 40 20 6.0 4.5 5.0 5.5 4.0 -50 6.0 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 fIN = 1/5 MHz, VIN = 1 VP-P VCC = 5 V, Pin 1 Voltage fIN = 1/5 MHz, VIN = 1 VP-P 0.0 1.4 VCMP (V) fr (dB) 0.0 -0.5 -0.5 0 50 TA (°C) January 2000 TOKO, Inc. 100 -1.5 4.0 1.3 1.2 -1.0 -1.0 6.0 1.5 0.5 0.5 -1.5 -50 6.0 5.0 5.0 10 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 ICC (mA) ICC (mA) 16 fr (dB) STANDBY SUPPLY CURRENT VS. TEMPERATURE SUPPLY CURRENT VS. SUPPLY VOLTAGE 4.5 5.0 VCC (V) 5.5 6.0 1.1 -50 0 50 100 TA (°C) Page 5 TK15412 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) DIFFERENTIAL GAIN VS. TEMPERATURE CLAMP VOLTAGE VS. SUPPLY VOLTAGE 6.0 1.5 TA = 25 °C, Pin 1 Voltage 4.0 DG (%) VCMP (V) 1.4 1.3 1.2 1.1 4.0 VCC = 5.0 V, VIN = 1 VP-P 2.0 0.0 -2.0 4.5 5.0 5.5 -4.0 -50 6.0 0 50 VCC (V) TA (°C) DIFFERENTIAL GAIN VS. SUPPLY VOLTAGE DIFFERENTIAL PHASE VS. TEMPERATURE 100 6.0 30 TA = 25 °C, VIN = 1 VP-P VCC = 5.0 V, VIN = 1 VP-P 4.0 DP (deg) DG (%) 20 10 0 -10 4.0 2.0 0.0 -2.0 4.5 5.0 5.5 6.0 -4.0 -50 0 50 100 TA (°C) VCC (V) DIFFERENTIAL PHASE VS. SUPPLY VOLTAGE 6.0 TA = 25 °C, VIN = 1 VP-P DP (deg) 4.0 2.0 0.0 -2.0 -4.0 4.0 4.5 5.0 5.5 6.0 VCC (V) Page 6 January 2000 TOKO, Inc. TK15412 PIN FUNCTION DESCRIPTION TERMINAL INTERNAL EQUIVALENT CIRCUIT PIN NO. SYMBOL VOLTAGE 1 3 INPUT_A INPUT_B 1.25 V 1.25 V DESCRIPTION Luminance Input Terminal. The luminance input signal is clamped at 1.25 V. VCC 1.25 V 2 VCC 4 CHANGE-OVER SW 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 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 1.5 k 5k January 2000 TOKO, Inc. Change-Over Switch Terminal for selecting the luminance signal input. The input_A signal is applied to the output when Pin 4 is connected to Low. The input_B signal is applied to the output when Pin 4 is connected to High. Pin 8: Luminance Output Terminal. The luminance output is available to drive a 75 Ω + 75 Ω load. Page 7 TK15412 PACKAGE OUTLINE Marking Information SOT23L-8 0.45 Marking 412 5 1.0 8 TK15412 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-TK15412 0100O0.0K Printed in the USA