TOKO TK15412MTL Datasheet
TK15412
01S
75 Ω VIDEO LINE DRIVER
FEATURES
■ Fixed Gain (6 dB)
■ Internal 75 Ω Driver with Clamp Circuit
■ Very Small Output Capacitor Using SAG Function Pin
■ Active High ON/OFF Control
■ Very Low Standby Current (typ. I
≤ 25 µA)
STBY
■ 2 Input/1 Output Video Switch
■ Single +5 V Power Supply Operation
DESCRIPTION
Operating from a single +5 V supply, the TK15412 is a
single-channel video line driver IC that takes two standard
video analog inputs and provides one buffered analog
output for driving a 150 Ω load. The TK15412 features a
built-in 2 input/1 output video switch on the input. The
selected video input signal (1V
clamped at 1.25 V and amplified 6 dB to produce 2 V
(typical) into a series 75 Ω resistor and 75 Ω cable load.
During standby (Pin 5 grounded), the TK15412 consumes
only 125 µW of power. Nominal power dissipation (no
input) is typically 73 mW.
typical) is internally
P-P
P-P
APPLICATIONS
■ Video Equipment
■ Digital Cameras
■ CCD Cameras
■ TV Monitors
■ Video Tape Recorders
■ LCD Projectors
TK15412
INPUT_A
INPUT_B
CHANGE-OVER SW
OUTPUT
V
CC
SAG
GND
STANDBY
The TK15412M is available in the SOT23L-8 surface
BLOCK DIAGRAM
mount package.
V
CC
Driver
75 Ω
1.5 kΩ
ORDERING INFORMATION
5 kΩ 5 kΩ
TK15412M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc. Page 1
GND
TK15412
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................... 6 V
Operating Voltage Range.............................. 4.5 to 5.5 V
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-25 to +85 °C
Power Dissipation (Note 1) ................................ 200 mW
TK15412M ELECTRICAL CHARACTERISTICS
Test conditions: V
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
I
CC
I
YBTS
I
SO
V
)WS(LHT
V
)WS(HLT
V
V
)YBTS(LHT
)YBTS(HLT
= 5.0 V, VIN = 1.0 V
CC
tnerruCylppuStupnioN5.410.02Am
)woLothgiH(
)hgiHotwoL(
dlohserhTybdnatS
dlohserhTybdnatS
, RL = 150 Ω, TA = 25 °C unless otherwise specified.
P-P
tnerruCylppuSybdnatSdednuorG5niP0.520.05Aµ
tnerruClanimreTybdnatSedomybdnatSni5niP0.520.05Aµ
egatloVdlohserhThctiwS
egatloVdlohserhThctiwS
)woLothgiH(egatloV
)hgiHotwoL(egatloV
4niPDNG08.0V
4niP00.2V
edom
edom
CC
ybdnatSotgnitarepO5niP
gnitarepOotybdnatS5niP
DNG06.0V
00.2V
CC
V
V
V
PMC
AVGniaGegatloVf3niP,1niP
egatloVpmalClanimrettupnI3niP,1niP50.152.154.1V
NI
zHM1=54.559.554.6Bd
GDniaGlaitnereffiDlangisesacriatS3niP,1niP0.3-6.1+0.3+%
PDesahPlaitnereffiDlangisesacriatS3niP,1niP0.3-2.0+0.3+ged
rfesnopseRycneuqerF
f
NI
1TC1klaTssorCftuptuO-AtupnI
2TC2klaTssorCftuptuO-BtupnI
Note 1: Power dissipation is 200 mW in free air. Derate at 1.6 mW/°C for operation above 25°C.
3niP,1niP
zHM5/zHM1=
NI
NI
zHM1=56-Bd
zHM1=07-Bd
3.0-Bd
Page 2 January 2000 TOKO, Inc.
TP1A
TP1B
75 Ω
75 Ω
Input A
4.7 µF
4.7 µF
Input B
TK15412
TEST CIRCUIT
V
CC
TP4
VCC = 5.0 V
+
+
+
33 µF
+
33 µF
+
33 µF
V
OUT
Output
= 2.0 V
75 Ω
P-P
TP2
TP3
75 Ω
Switch Truth Table
4niPtuptuO
L1niP
H3niP
MEASUREMENT METHOD
1. Supply Current (ICC)
The Pin 2 current is measured with no input signal and the Standby Pin (Pin 5) open.
2. Standby Supply Current (I
STBY
)
The Pin 2 current is measured when the Standby Pin (Pin 5) is connected to ground.
3. Standby Terminal Current (IOS)
The Pin 5 current is measured when the Standby Pin (Pin 5) is connected to ground.
4. Standby Threshold Voltage (High to Low) (V
THL(STBY)
)
The Pin 5 voltage is measured at the point which changes the device from operating mode into standby mode.
5. Standby Threshold Voltage (Low to High) (V
TLH(STBY)
)
The Pin 5 voltage is measured at the point which changes the device from standby mode into operating mode.
January 2000 TOKO, Inc. Page 3
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