BA7645 datasheet(4/4 Pages) ROHM

Part #	BA7645

Description	Video signal switcher

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Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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4

Multimedia ICs

BA7645N

•Measurement conditions

SW1

SW2

SW3

SW4

SW5

SW6

SW7

ICC

2222222

IN 1

IN 2

IN 3

IN 4

Vom

1

2

1

2

1

2

1

3

2

3

2

3

2

3

f = 1kHz,

THD = 0.5%

IN 1

IN 2

IN 3

IN 4

GV

1

2

1

2

1

2

1

3

2

3

2

3

2

3

f = 1MHz,

VIN = 1VP-P

IN1

→IN2

IN1

→IN3

IN1

→IN4

IN1

→MUTE

IN2

→IN3

IN2

→IN4

IN2

→MUTE

IN3

→IN4

IN3

→MUTE

IN4

→MUTE

CT

1

2

1

2

1

2

1

3

2

∗

2

∗

2

∗

2

3

2

∗

3

2

∗

2

∗

3

2

3

2

3

2

f = 4.43MHz,

VIN = 1VP-P

IN 1

IN 2

IN 3

IN 4

Gf

1

2

1

2

1

2

1

3

2

3

2

3

2

3

VTH

2

1

2

1

2

1

2

1

3

1

3

1

f = 10MHz /

1MHz

VIN = 1VP-P

CTLA

CTLB

CTLC

∗ Anywhere is possible.

Note 1: Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the input level until the output distortion is 0.5%.

This output voltage at this time is the maximum output level Vom (VP-P).

Note 2: Input a f = 1MHz, VIN = 1VP-P sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN).

Note 3: Input a f = 4.43MHz, VIN = 1VP-P sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN).

Note 4: Input f = 1MHz and 10MHz, VIN = 1VP-P sine waves. The frequency characteristic is given by Gf = 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)).

Note 5: Input a f = 1MHz, VIN = 1VP-P sine wave. Reduce the CTL pin voltage from VCC. The CTL pin switching level (VTH) is the CTL pin voltage at which

the VOUT level drops below 20mVP-P.

Note 6: Input a f = 1MHz, VIN = 1VP-P sine wave. Increase the CTL pin voltage from 0V. The CTL pin switching level (VTH) is the CTL pin voltage at which

the VOUT level goes below 1.0VDC

Parameter

Symbol

Switch settings

Measurement

method

Current dissipation

Ammeter

Maximum

output level

Note 1

Voltage gain

Note 2

Interchannel

crosstalk

Note 3

Frequency

characteristic

CTL pin

switching level

Note 5

Note 6

Note 4

•External dimensions (Units: mm)

SIP10

2.8

± 0.2

25.2

± 0.2

0.6

1.3

10

2.54

1

0.3

± 0.1

0.8

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