Datasheet TK15408MTL Datasheet (TOKO)

TK15408

75 Ω VIDEO LINE DRIVER

FEATURES

■ Fixed Gain (6 dB)

■ Internal 75 Ω Drivers

■ Very Small Output Capacitor Using SAG Function Pin

■ Internal Clamping Circuit

■ Single +5 V Power Supply Operation

DESCRIPTION

Operating from a single +5 V supply, the TK15408 is a dual
video driver IC that takes standard video signals as analog
inputs and provides buffered analog outputs for driving
150 Ω loads (series 75 Ω resistor and 75 Ω cable load).
Both amplifiers have a fixed gain of 6 dB with internal
clamping circuits. Each input is clamped at 1.29 V and
amplified 6 dB to produce 2 V
75 Ω resistor and 75 Ω cable load. The internal 1.5 k SAG
function resistors provide gain compensation for low
frequency signals. Nominal power dissipation (no input) is
typically 76 mW. The TK15408 is ideally suited for S-VHS
systems.

The TK15408M is available in the very small SOT23L-8
surface mount package.

(typical) into a series

P-P

APPLICATIONS

■ Video Equipment

■ Digital Cameras

■ CCD Cameras

■ TV Monitors

■ Video Tape Recorders

■ LCD Projectors

TK15408

SAG_A

01S

INPUT_A

INPUT_B

SAG_B

BLOCK DIAGRAM

OUTPUT_A

V

CC

GND

OUTPUT_B

ORDERING INFORMATION

TK15408M

Tape/Reel Code

TAPE/REEL CODE

TL: Tape Left

5 kΩ

5 kΩ

5 kΩ

-

Driver

75 Ω

+

+

Driver

75 Ω

-

5 kΩ 1.5 kΩ

1.5 kΩ

V

CC

December 1999 TOKO, Inc. Page 1

TK15408

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 +75 °C

Power Dissipation (Note 1) ................................ 200 mW

TK15408M ELECTRICAL CHARACTERISTICS

Test conditions: V

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

I

CC

V

PMC

AVGniaGegatloVf
GDniaGlaitnereffiDtupnilangisesacriatS0.3-6.0+0.3+%
PDesahPlaitnereffiDtupnilangisesacriatS0.3-1.0-0.3+ged

rfesnopseRycneuqerFf

Note 1: Power dissipation is 200 mW in free air. Derate at 1.6 mW/°C for operation above 25°C.

= 5.0 V, VIN = 1.0 V

CC

tnerruCylppuStupnioN1.510.12Am

egatloVpmalClanimrettupnI3niP,2niP01.192.105.1V

, RL = 150 Ω, TA = 25 °C unless otherwise specified.

P-P

ni

ni

zHM1=2.57.52.6Bd

zHM5/zHM1=3.0-Bd

Page 2 December 1999 TOKO, Inc.

TEST CIRCUIT

TK15408

SAG_A

TP1

75 Ω

4.7 µF

TP4

4.7 µF

75 Ω

INPUT_A

+

INPUT_B

+

SAG_B

MEASUREMENT METHOD

1. Supply Current (ICC)
The Pin 7 current is measured with no input signal.

33 µF

OUTPUT_A

V

CC

33 µF

GND

OUTPUT B

++

33 µF

33 µF

+

+

33 µF

75 Ω

TP2

V

CC

+

5.0 V

TP5

75 Ω

75 Ω

TP3

TP6

75 Ω

2. Clamp Voltage (V

CMP

)

The DC voltage at Pin 2 (Pin 3) is measured with no input signal.

3. Voltage Gain (GVA)
The voltage gain equation is as follows:
GVA = 20 log10 V2/V1
Where V1 is the input voltage at TP1 (TP4) and V2 is the measured voltage at TP2 (TP5).

4. Differential Gain (DG)
The differential gain is measured at TP3 (TP6) when a staircase waveform of 10 steps is applied to TP1 (TP4).

5. Differential Phase (DP)
The differential phase is measured at TP3 (TP6) when a staircase waveform of 10 steps is applied to TP1 (TP4).

6. Frequency Response (fr)
The frequency response equation is as follows:
fr = 20 log10 V2/V1
Where V1 is the measured TP3 (TP6) voltage when the TP1 (TP4) input frequency is set to 1 MHz and V2 is the measured
TP3 (TP6) voltage when the TP1 (TP4) input frequency is set to 5 MHz.

December 1999 TOKO, Inc. Page 3

TK15408

f

(dB)

TYPICAL PERFORMANCE CHARACTERISTICS

SUPPLY CURRENT

VS.

TEMPERATURE

20

VCC = 5.0 V,
No Input

18

16

(mA)

CC

14

I

12

10

-50 0 50 100
TA (°C)

VOLTAGE GAIN

VS.

TEMPERATURE

8.0

VCC = 5.0 V,
fin = 1 MHz,

VIN = 1 V

P-P

7.0

6.0

GVA (dB)

SUPPLY CURRENT

VS.

SUPPLY VOLTAGE

20

TA = 25 °C,
No Input

18

16

(mA)

CC

I

14

12

10

4.0 4.5 5.0 5.5 6.0
V

(V)

CC

VOLTAGE GAIN

VS.

SUPPLY VOLTAGE

8.0

TA = 25 °C,
fin = 1 MHz,

7.0

VIN = 1 V

6.0

GVA (dB)

P-P

5.0

4.0

-50 0 50 100
TA (°C)

FREQUENCY RESPONSE

0.5

TEMPERATURE

fin = 1/5 MHz,
VIN = 1 V

0.0

-0.5

r

-1.0

-1.5

-50 0 50 100
TA (°C)

VS.

P-P

5.0

4.0

4.0 4.5 5.0 5.5 6.0
V

(V)

CC

FREQUENCY RESPONSE

0.5

SUPPLY VOLTAGE

fin = 1/5 MHz,
VIN = 1 V

0.0

-0.5

fr (dB)

-1.0

-1.5

4.0 4.5 5.0 5.5 6.0
V

(V)

CC

VS.

P-P

Page 4 December 1999 TOKO, Inc.

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

TK15408

CLAMP VOLTAGE

VS.

TEMPERATURE

1.5

VCC = 5.0 V,
Pin 2

1.4

1.3

(V)

CMP

1.2

V

1.1

1.0

-50 0 50 100
TA (°C)

DIFFERENTIAL GAIN

VS.

TEMPERATURE

6

VCC = 5.0 V,
VIN = 1 V

4

P-P

2

0

DG (%)

-2

-4

CLAMP VOLTAGE

VS.

SUPPLY VOLTAGE

1.5

TA = 25 °C,
Pin 2

1.4

1.3

(V)

CMP

1.2

V

1.1

1.0

4.0 4.5 5.0 5.5 6.0
V

(V)

CC

DIFFERENTIAL GAIN

VS.

SUPPLY VOLTAGE

10

TA = 25 °C
VIN = 1 V

0

-10

DG (%)

-20

P-P

-6

-50 0 50 100
TA (°C)

DIFFERENTIAL PHASE

6

TEMPERATURE

4

VCC = 5.0 V,
VIN = 1 V

P-P

VS.

2

0

DP (deg)

-2

-4

-6

-50 0 50 100
TA (°C)

-30

4.0 4.5 5.0 5.5 6.0
V

(V)

CC

DIFFERENTIAL PHASE

6

4

SUPPLY VOLTAGE

TA = 25 °C,
VIN = 1 V

2

0

DP (deg)

-2

-4

-6

4.0 4.5 5.0 5.5 6.0
V

(V)

CC

VS.

P-P

December 1999 TOKO, Inc. Page 5

TK15408

PIN FUNCTION DESCRIPTIONS

LANIMRET

NIP

.ON

LOBMYSEGATLOV

TIUCRICTNELAVIUQELANRETNINOITPIRCSED

8

1

2A_TUPNIV3.1.lanimretAtupnI

3B_TUPNIV3.1.lanimretBtupnI

A_TUPTUO

A_GAS

V6.1

V

CC

V4.1

1.5 k

5 k

V

CC

1.25 V

V

CC

AtuptuO:8niP

.lanimret

siAtuptuoehT

57evirdotelbaliava Ω

57+ Ω .daol

lanimretAGAS:1niP

tupniecnanimulehT

tadepmalcsilangis

.V92.1

tupniecnanimulehT

tadepmalcsilangis

.V92.1

1.25 V

4
5

B_GAS

B_TUPTUO

V4.1
V6.1

V

CC

BtuptuO:5niP

.lanimret

siBtuptuoehT

57evirdotelbaliava Ω

57+ Ω .daol

1.5 k

5 k

6
7

DNGDNG.lanimretDNG

V

CC

V

CC

.lanimretBGAS:4niP

.lanimretylppuSrewoP

Page 6 December 1999 TOKO, Inc.

NOTES

TK15408

December 1999 TOKO, Inc. Page 7

TK15408

PACKAGE OUTLINE

SOT23L-8

8

1

Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)

Marking Information

0.45

5

marking

4

e

0.8

+0.3

- 0.1

3.5

(3.4)

+0.15

- 0.05

0.3

0.1

0.1

1.4max

M

1.2

0 - 0.1

+0.15

- 0.05

0.3

0.15

1.0

Recommended Mount Pad

3.3

3.0
1

e

0.8

e

2.2

15 max

+ 0.3

0.4

Marking
TK15408 408

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Tel: [phone] Fax: [phone]

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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 8 December 1999 TOKO, Inc.

All Rights Reserved

IC-xxx-TK15408

1299O0.0K

Printed in the USA© 1999 Toko, Inc.