TK15409 データシートの表示（PDF） - Toko America Inc

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TK15409

75 Ω VIDEO LINE DRIVER

Toko America Inc  

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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