TK15400 Datasheet, PDF (1/12 Pages) TOKO, Inc – 75 OHM VIDEO LINE DRIVER

FEATURES
s Fixed Gain (6 dB)
s Internal 75 Ω Drivers
s Very Small Output Capacitor Using SAG
Function Pin
s Active High ON/OFF Control
s Very Low Standby Current (typ. I_STBY ≤ 25 µA)
s Internal Summing Circuit of Y/C Signal
s Single +5 V Power Supply Operation
TK15400
75 Ω VIDEO LINE DRIVER
APPLICATIONS
s Video Equipment
s Digital Cameras
s CCD Cameras
s TV Monitors
s Video Tape Recorders
s LCD Projectors
DESCRIPTION
Operating from a single +5 V supply, the TK15400 is a
triple video line driver IC that takes standard Y/C analog
inputs and provides simultaneous Y/C and composite
analog outputs for driving 75 Ω lines. 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 to produce 2 V_P-P (typical) into
a series 75 Ω resistor and 75 Ω cable load. The internal
1.5 k SAG function resistor provides gain compensation
for low frequency signals. The chromanance (C) input is
biased at 2.0 V and amplified 6 dB to produce 1.3 V_P-P
(typical) into a series 75 Ω resistor and 75 Ω cable load.
During standby (Pin 5 grounded), the TK15400 consumes
only 113 µW of power. Nominal power dissipation (no
input) is typically 168 mW.
The TK15400M is available in the SSOP-12 Surface
Mount Package.
ORDERING INFORMATION
TK15400M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
TK15400
VCC
Y-INPUT
GND
GND
STANDBY
C-INPUT
Y-OUTPUT
Y-SAG
CVBS-OUTPUT
CVBS-SAG
C-OUTPUT
GND
BLOCK DIAGRAM
100 k
VCC
5k
5k
1.5 k
5k
1.5 k
5k
January 2000 TOKO, Inc.
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