TK15411 Datasheet, PDF (1/8 Pages) TOKO, Inc – 75 OHM VIDEO LINE DRIVER

TK15411
75 Ω VIDEO LINE DRIVER
FEATURES
s Superimpose Circuit for Two-Level (45 and 140 IRE)
Character Generation
s Fixed Gain (6 dB)
s Internal 75 Ω Driver with Clamp Circuit
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 Single +5 V Power Supply Operation
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 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 V_P-P typical) is internally clamped to 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 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.
The TK15411M is available in the SOT23L-8 surface
mount package.
TK15411
INPUT
VCC
01S
SUPERIMPOSITION 2
SUPERIMPOSITION 1
OUTPUT
SAG
GND
STANDBY
BLOCK DIAGRAM
VCC
Logic
ORDERING INFORMATION
TK15411M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
5 kΩ
1.5 kΩ
5 kΩ
GND
January 2000 TOKO, Inc.
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