TOKO TK15400

TK15400
75 Ω VIDEO LINE DRIVER
FEATURES
APPLICATIONS
■ 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. ISTBY ≤ 25 µA)
■ Internal Summing Circuit of Y/C Signal
■ Single +5 V Power Supply Operation
■
■
■
■
■
■
Video Equipment
Digital Cameras
CCD Cameras
TV Monitors
Video Tape Recorders
LCD Projectors
DESCRIPTION
TK15400
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 VP-P (typical) into
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 VP-P
(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.
VCC
Y-OUTPUT
Y-SAG
Y-INPUT
GND
CVBS-OUTPUT
GND
CVBS-SAG
STANDBY
C-OUTPUT
GND
C-INPUT
BLOCK DIAGRAM
VCC
The TK15400M is available in the SSOP-12 Surface
Mount Package.
1.5 k
5k
5k
ORDERING INFORMATION
1.5 k
TK15400M
5k
5k
100 k
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc.
Page 1
TK15400
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................... 6 V
Operating Voltage ......................................... 4.5 to 5.5 V
Power Dissipation (Note 1) ................................ 350 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-25 to +75 °C
TK15400M ELECTRICAL CHARACTERISTICS
Test conditions: VCC = 5.0 V, VIN = 1.0 VP-P, RL = 150 Ω, TA = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ICC
Supply Current
No input
33.5
45.0
mA
ISTBY
Standby Supply Current
Pin 5 Grounded
22.5
50.0
µA
IOS
Standby Terminal Current
Pin 5 Standby mode
22.5
50.0
µA
VTHL
Threshold Voltage (High to
Low)
Pin 5 Operating to Standby
mode
GND
0.1
0.3
V
VTLH
Threshold Voltage (Low to
High)
Pin 5 Standby to Operating
mode
1.8
2.0
VCC
V
VCMP
Clamp Voltage
Pin 2 Y signal input terminal
1.05
1.25
1.45
V
VBIAS
Bias Voltage
Pin 6 C signal input terminal
1.70
2.00
2.30
V
GVA
Voltage Gain
CIN - COUT, fin = 1 MHZ
5.5
6.0
6.5
dB
DG
Differential Gain
Staircase wave input
-3.0
-1.5
+3.0
%
DP
Differential Phase
Staircase wave input
-3.0
-0.2
+3.0
deg
fr
Frequency Response
fin = 1 MHz / 5 MHz
0.0
dB
CT1
Cross Talk 1
YIN - COUT
-40
dB
CT2
Cross Talk 2
CIN - YOUT
-40
dB
Note 1: Power dissipation is 350 mW in free air. Derate at 2.8 mW/°C for operation above 25°C.
Page 2
January 2000 TOKO, Inc.
TK15400
TEST CIRCUIT
VCC
VCC = 5.0 V
33 µF
TP7
Y-INPUT
4.7 µF
Y-OUTPUT
VOUT = 2.0 VP-P
+
TP1
TP8
75 Ω
33 µF
+
75 Ω
75 Ω
33 µF
TP5
Standby
CVBS
VOUT = 2.0 VP-P
+
TP6
75 Ω
33 µF
+
75 Ω
33 µF
TP3
C-INPUT
4.7 µF
C-OUTPUT
VOUT = 1.3 VP-P
+
TP4
TP2
33 µF
75 Ω
75 Ω
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 (ISTBY)
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) (VTHL)
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) (VTLH)
The Pin 5 voltage is measured at the point which changes the device from standby mode into operating mode.
6. Clamp Voltage (VCMP)
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 (VBIAS)
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 VP-P input signal is applied to TP1 and V2 is measured at TP3 when a 1
MHz 1 VP-P input signal is applied to TP2.
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 VP-P input signal is applied to TP2 and V2 is measured at TP7 when a 1
MHz 1 VP-P input signal is applied to TP1.
Page 4
January 2000 TOKO, Inc.
TK15400
TYPICAL PERFORMANCE CHARACTERISTICS
SUPPLY CURRENT VS.
TEMPERATURE
SUPPLY CURRENT VS.
SUPPLY VOLTAGE
40
40
TA = 25 °C,
No Input
VCC = 5.0 V,
No Input
35
ICC (mA)
ICC (mA)
35
30
25
30
25
20
-50
0
50
20
4.0
100
4.5
5.0
STANDBY SUPPLY CURRENT VS.
TEMPERATURE
STANDBY SUPPLY CURRENT VS.
SUPPLY VOLTAGE
50
TA = 25 °C,
Pin 5 = GND
VCC = 5.0 V,
Pin 5 = GND
40
ISTBY (µA)
40
ISTBY (µA)
6.0
VCC (V)
50
30
20
0
-50
30
20
10
10
0
50
0
4.0
100
4.5
5.0
VCC (V)
VOLTAGE GAIN VS.
TEMPERATURE
VOLTAGE GAIN VS.
SUPPLY VOLTAGE
6.0
8.0
TA = 25 °C,
fin = 1 MHz,
VIN = 1 VP-P
VCC = 5.0 V,
fin = 1 MHz,
VIN = 1 VP-P
7.0
GVA (mA)
7.0
6.0
5.0
4.0
-50
5.5
TA (°C)
8.0
GVA (dB)
5.5
TA (°C)
6.0
5.0
0
50
TA (°C)
January 2000 TOKO, Inc.
100
4.0
4.0
4.5
5.0
5.5
6.0
VCC (V)
Page 5
TK15400
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
FREQUENCY RESPONSE VS.
TEMPERATURE
FREQUENCY RESPONSE VS.
SUPPLY VOLTAGE
1.0
1.0
fin = 1/5 MHz,
VIN = 1 VP-P
fin = 1/5 MHz,
VIN = 1 VP-P
0.5
fc (dB)
fc (dB)
0.5
0.0
-0.5
-1.0
-50
0.0
-0.5
0
50
100
-1.0
4.0
4.5
5.0
TA (°C)
VCC (V)
CLAMP VOLTAGE VS.
TEMPERATURE
CLAMP VOLTAGE VS.
SUPPLY VOLTAGE
1.5
TA = 25 °C,
Pin 2 Voltage
1.4
VCMP (V)
VCMP (V)
1.4
1.3
1.3
1.2
1.2
1.1
1.1
0
50
1.0
4.0
100
4.5
5.0
VCC (V)
BIAS VOLTAGE VS.
TEMPERATURE
BIAS VOLTAGE VS.
SUPPLY VOLTAGE
TA = 25 °C
Pin 6 Voltage
2.2
VBIAS (V)
2.2
VBIAS (V)
6.0
2.4
VCC = 5.0 V,
Pin 6 Voltage
2.0
1.8
2.0
1.8
0
50
TA (°C)
Page 6
5.5
TA (°C)
2.4
1.6
-50
6.0
1.5
VCC = 5.0 V,
Pin 2 Voltage
1.0
-50
5.5
100
1.6
4.0
4.5
5.0
5.5
6.0
VCC (V)
January 2000 TOKO, Inc.
TK15400
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
DIFFERENTIAL GAIN VS.
TEMPERATURE
DIFFERENTIAL GAIN VS.
SUPPLY VOLTAGE
10
10
TA = 25 °C
VIN = 1 VP-P
VCC = 5.0 V,
VIN = 1 VP-P
0
DG (%)
DG (%)
0
-10
-20
-50
-10
0
50
-20
4.0
100
5.5
VCC (V)
DIFFERENTIAL PHASE VS.
TEMPERATURE
DIFFERENTIAL PHASE VS.
SUPPLY VOLTAGE
6.0
6
VCC = 5.0 V,
VIN = 1 VP-P
4
TA = 25 °C,
VIN = 1 VP-P
4
2
DP (deg)
2
DP (deg)
5.0
TA (°C)
6
0
0
-2
-2
-4
-4
-6
-50
4.5
0
50
TA (°C)
January 2000 TOKO, Inc.
100
-6
4.0
4.5
5.0
5.5
6.0
VCC (V)
Page 7
TK15400
PIN FUNCTION DESCRIPTION
TERMINAL
INTERNAL EQUIVALENT CIRCUIT
PIN
NO.
SYMBOL
VOLTAGE
1
VCC
VCC
2
Y-INPUT
1.25 V
DESCRIPTION
Power supply terminal
Pin 2 is the Y signal
input terminal.
The clamp circuit fixes
the synchronous
voltage to 1.25 V.
VCC
1.25 V
3,4
GND
GND
5
STANDBY
1.4 V
GND terminal
Pin 5 is the standby
logic terminal.
The device is in the
active state when Pin 5
is pulled up to high level
or open.
The device is in the
standby state when Pin
5 is pulled down to low
level.
VCC
200 k
5k
6
C-INPUT
2.0 V
VCC
100 k
Pin 6 is the C signal
input terminal.
The bias circuit fixes the
C signal to 2.0 V by the
100 kΩ bias resistor.
2.0 V
7
GND
GND
8
C-OUTPUT
2.0 V
Page 8
GND terminal
VCC
Pin 8 is the C signal
output terminal.
Pin 8 is available to
drive a 75 Ω + 75 Ω
load.
January 2000 TOKO, Inc.
TK15400
PIN FUNCTION DESCRIPTION
TERMINAL
INTERNAL EQUIVALENT CIRCUIT
PIN
NO.
SYMBOL
VOLTAGE
9
10
11
12
CVBS-SAG
CVBS-OUTPUT
Y-SAG
Y-OUTPUT
1.25 V
1.25 V
1.25 V
1.25 V
VCC
1.5 k
5k
January 2000 TOKO, Inc.
DESCRIPTION
Pin 9 and Pin 10 are the
CVBS signal output
terminal and the CVBSSAG terminal.
Pin 11 and 12 are the Y
signal output terminal
and the Y-SAG
terminal.
These pins are
available to drive 75 Ω
+ 75 Ω loads.
Page 9
TK15400
NOTES
Page 10
January 2000 TOKO, Inc.
TK15400
NOTES
January 2000 TOKO, Inc.
Page 11
TK15400
PACKAGE OUTLINE
Marking Information
SSOP-12
0.4
1.2
TK15400
Marking
400
Marking
12
e1 5.4
7
4.4
AAA
e 0.8
YYY
Recommended Mount Pad
1
6
Lot. No.
0 ~ 10
1.7 max
+0.15
-0.05
0.5
+0.15
0.3 -0.05
0.15
0 ~ 0.2
1.4
5.0
e 0.8
0.1
6.0
0.10
+ 0.3
M
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
Visit our Internet site at http://www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
Page 12
© 2000 Toko, Inc.
All Rights Reserved
January 2000 TOKO, Inc.
IC-xxx-TK15400
0100O0.0K
Printed in the USA