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TK15409 Datasheet(PDF) 1 Page - TOKO, Inc

Part No. TK15409
Description  75 OHM VIDEO LINE DRIVER
Download  8 Pages
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Maker  TOKO [TOKO, Inc]
Homepage  http://www.toko.com
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TK15409 Datasheet(HTML) 1 Page - TOKO, Inc

   
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January 2000 TOKO, Inc.
Page 1
TK15409
FEATURES
s Internal Y-C Summing Circuit
s Voltage Gain is 6 dB Fixed
s Internal 75
Driver
s Active High ON/OFF Control
s Very Low Standby Current (typ. I
STBY 25 µA)
s Very Small Output Capacitor Using SAG Function Pin
s Very Small Package (SOT23L-8)
s Single +5 V Power Supply Operation
BLOCK DIAGRAM
TK15409
APPLICATIONS
s Video Equipment
s Digital Cameras
s CCD Cameras
s TV Monitors
s Video Tape Recorders
s LCD Projectors
75
Ω VIDEO LINE DRIVER
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 k
Ω 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.
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK15409M
GND
C-INPUT
VCC
STANDBY
N/C
Y-INPUT
SAG
OUTPUT
01S
Clamp
1.25 V
5 k
BIAS
2.0 V
6 dB
Amp
6 dB
Amp
Clamp
1.25 V
Reference
&
Standby
5 k
1.5 k


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