TK15409 Datasheet, PDF (1/8 Pages) TOKO, Inc – 75 OHM VIDEO LINE DRIVER

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.
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
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 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.
ORDERING INFORMATION
TK15409M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
TK15409
Y-INPUT
N/C
01S
SAG
OUTPUT
C-INPUT
VCC
GND
STANDBY
BLOCK DIAGRAM
6 dB
Amp
Clamp
1.25 V
5 kΩ
1.5 kΩ
BIAS
2.0 V
6 dB
Amp
Clamp
1.25 V
5 kΩ
Reference
&
Standby
January 2000 TOKO, Inc.
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