TOKO TK15400MTL Datasheet
TK15400
75 Ω VIDEO LINE DRIVER
FEATURES
■ Fixed Gain (6 dB)
■ Internal 75 Ω Drivers
■ Very Small Output Capacitor Using SAG
Function Pin
■ Active High ON/OFF Control
■ Very Low Standby Current (typ. I
≤ 25 µA)
STBY
■ Internal Summing Circuit of Y/C Signal
■ Single +5 V Power Supply Operation
DESCRIPTION
Operating from a single +5 V supply, the TK15400 is a
triple video line driver IC that takes standard Y/C analog
inputs and provides simultaneous Y/C and composite
analog outputs for driving 75 Ω lines. 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 to produce 2 V
a series 75 Ω resistor and 75 Ω cable load. The internal
1.5 k SAG function resistor provides gain compensation
for low frequency signals. The chromanance (C) input is
biased at 2.0 V and amplified 6 dB to produce 1.3 V
(typical) into a series 75 Ω resistor and 75 Ω cable load.
During standby (Pin 5 grounded), the TK15400 consumes
only 113 µW of power. Nominal power dissipation (no
input) is typically 168 mW.
The TK15400M is available in the SSOP-12 Surface
Mount Package.
(typical) into
P-P
P-P
APPLICATIONS
■ Video Equipment
■ Digital Cameras
■ CCD Cameras
■ TV Monitors
■ Video Tape Recorders
■ LCD Projectors
TK15400
BLOCK DIAGRAM
V
CC
Y-INPUT
GND
GND
STANDBY
C-INPUT
V
CC
5 k 5 k
Y-OUTPUT
Y-SAG
CVBS-OUTPUT
CVBS-SAG
C-OUTPUT
GND
1.5 k
ORDERING INFORMATION
TK15400M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
5 k 5 k
100 k
1.5 k
January 2000 TOKO, Inc. Page 1
TK15400
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................... 6 V
Operating Voltage ......................................... 4.5 to 5.5 V
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-25 to +75 °C
Power Dissipation (Note 1) ................................ 350 mW
TK15400M ELECTRICAL CHARACTERISTICS
Test conditions: V
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
I
CC
I
YBTS
I
SO
V
LHT
V
HLT
V
PMC
V
SAIB
AVGniaGegatloVC
GDniaGlaitnereffiDtupnievawesacriatS0.3-5.1-0.3+%
= 5.0 V, VIN = 1.0 V
CC
tnerruCylppuStupnioN5.330.54Am
)woL
)hgiH
egatloVpmalClanimrettupnilangisY2niP50.152.154.1V
egatloVsaiBlanimrettupnilangisC6niP07.100.203.2V
, RL = 150 Ω, TA = 25 °C unless otherwise specified.
P-P
tnerruCylppuSybdnatSdednuorG5niP5.220.05Aµ
tnerruClanimreTybdnatSedomybdnatS5niP5.220.05Aµ
othgiH(egatloVdlohserhT
edom
otwoL(egatloVdlohserhT
edom
C-
NI
TUOf,ni
ybdnatSotgnitarepO5niP
gnitarepOotybdnatS5niP
DNG1.03.0V
8.10.2V
CC
ZHM1=5.50.65.6Bd
V
PDesahPlaitnereffiDtupnievawesacriatS0.3-2.0-0.3+ged
rfesnopseRycneuqerFf
1TC1klaTssorCY
2TC2klaTssorCC
Note 1: Power dissipation is 350 mW in free air. Derate at 2.8 mW/°C for operation above 25°C.
ni
C-
NI
TUO
Y-
NI
TUO
zHM5/zHM1=0.0Bd
04-Bd
04-Bd
Page 2 January 2000 TOKO, Inc.
Y-INPUT
TP1
C-INPUT
TP2
4.7 µF
75 Ω
Standby
4.7 µF
75 Ω
TEST CIRCUIT
V
CC
VCC = 5.0 V
33 µF
+
33 µF
+
33 µF
+
33 µF
+
33 µF
+
33 µF
TP7
TP5
TP3
Y-OUTPUT
V
OUT
V
OUT
C-OUTPUT
V
OUT =
= 2.0 V
75 Ω
CVBS
= 2.0 V
75
Ω
1.3 V
75 Ω
TK15400
P-P
TP8
75 Ω
P-P
TP6
75 Ω
P-P
TP4
75 Ω
GND
MEASUREMENT METHOD
1. Supply Current (ICC)
The Pin 1 current is measured with no input signal and the Standby Pin (Pin 5) open.
2. Standby Supply Current (I
STBY
)
The Pin 1 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 Pin 5 is connected to ground.
4. Threshold Voltage (High to Low) (V
THL
)
The Pin 5 voltage is measured at the point which changes the device from operating mode into standby mode.
5. Threshold Voltage (Low to High) (V
TLH
)
The Pin 5 voltage is measured at the point which changes the device from standby mode into operating mode.
6. Clamp Voltage (V
CMP
)
The DC voltage at Pin 2 is measured with no input signal.
January 2000 TOKO, Inc. Page 3
TK15400
MEASUREMENT METHOD (CONT.)
7. Bias Voltage (V
BIAS
)
The DC voltage at Pin 6 is measured with no input signal.
8. Voltage Gain (GVA)
The voltage gain equation is as follows:
GVA = 20 log10 V2/V1
Where V1 is the input voltage at TP1 and V2 is the measured voltage at TP5 (TP7). Furthermore, V1 is the input voltage
at TP2 and V2 is the measured voltage at TP3 (TP5).
9. Differential Gain (DG)
The differential gain is measured at TP5 (TP7) when a staircase waveform of 10 steps is applied to TP1.
10. Differential Phase (DP)
The differential phase is measured at TP5 (TP7) when a staircase waveform of 10 steps is applied to TP1.
11. Frequency Response (fr)
The frequency response equation is as follows:
fr = 20 log10 V2/V1
Where V1 is the measured TP7 voltage when the TP1 input frequency is set to 1 MHz and V2 is the measured TP7 voltage
when the TP1 input frequency is set to 5 MHz. Furthermore, V1 is the measured TP3 (TP5) voltage when the TP2 input
frequency is set to 1 MHz and V2 is the measured TP3 (TP5) voltage when the TP2 input frequency is set to 5 MHz.
12. Cross Talk 1 (CT1)
The cross talk equation is as follows:
CT1 = 20 log10 V1/V2
Where V1 is measured at TP3 when a 1 MHz 1 V
MHz 1 V
input signal is applied to TP2.
P-P
input signal is applied to TP1 and V2 is measured at TP3 when a 1
P-P
13. Cross Talk 2 (CT2)
The cross talk equation is as follows:
CT2 = 20 log10 V1/V2
Where V1 is measured at TP7 when a 1 MHz 1 V
MHz 1 V
input signal is applied to TP1.
P-P
input signal is applied to TP2 and V2 is measured at TP7 when a 1
P-P
Page 4 January 2000 TOKO, Inc.
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