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.

FEATURES
■ Internal Y-C Summing Circuit
■ Voltage Gain is 6 dB Fixed
■ Internal 75 Ω Driver
■ Active High ON/OFF Control
■ Very Low Standby Current (typ. ISTBY ≤ 25 µA)
■ Very Small Output Capacitor Using SAG Function Pin
■ Very Small Package (SOT23L-8)
■ Single +5 V Power Supply Operation

APPLICATIONS
■ Video Equipment
■ Digital Cameras
■ CCD Cameras
■ TV Monitors
■ Video Tape Recorders
■ LCD Projectors