TK15409

TK15409 75 Ω VIDEO LINE DRIVER FEATURES s Internal Y-C Summing Circuit s Voltage Gain is 6 dB Fixed s Internal 75 Ω Driver s Active High ON/OFF Control s Very Low Standby Current (typ. ISTBY ≤ 25 µA) s Very Small Output Capacitor Using SAG Function Pin s Very Small Package (SOT23L-8) 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 TK15409 is a video line driver IC that takes standard Y and C analog inputs and provides a composite analog output for driving 150 Ω loads (75 Ω resistor and 75 Ω cable load). Internal summing of the Y and C inputs is performed to produce the composite video output. The luminance (Y) input is clamped at 1.25 V and amplified 6 dB; the chromanance (C) input is biased at 2.0 V and amplified 6 dB. The internal 1.5 kΩ SAG function resistor provides gain compensation for low frequency signals. During standby (Pin 5 grounded), the TK15409 consumes only 127 µW of power. Nominal power dissipation (no input) is typically 90 mW. The TK15409M is available in the very small SOT23L-8 surface mount package. Clamp 1.25 V 6 dB Amp TK15409 Y-INPUT C-INPUT N/C 01S VCC GND SAG OUTPUT STANDBY BLOCK DIAGRAM BIAS 2.0 V 6 dB Amp 5 kΩ Clamp 1.25 V ORDERING INFORMATION 1.5 kΩ 6 dB 75 Ω DRIVER 5 kΩ Reference & Standby TK15409M Tape/Reel Code TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. VCC ...