BA7645N データシートの表示（PDF） - ROHM Semiconductor

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BA7645N

Video signal switcher

ROHM Semiconductor 

Multimedia ICs

BA7645N

•Measurement conditions

Parameter

Symbol

SW1

SW2

Switch settings

SW3 SW4 SW5

SW6

SW7

Measurement

method

Current dissipation

ICC

2

2

2

2

2

2

2

Ammeter

IN 1

Maximum

IN 2

output level IN 3

IN 4

Vom

Vom

Vom

Vom

1

2

2

2

2

1

2

2

2

2

1

2

2

2

2

1

3

3

2

2

3

2

3

2

3

3

3

3

f = 1kHz,

THD = 0.5%

Note 1

IN 1

Voltage gain

IN 2

IN 3

IN 4

GV

GV

GV

GV

1

2

2

2

1

2

2

2

1

2

2

2

2

2

2

1

3

3

2

2

3

2

3

2

3

3

3

3

f = 1MHz,

VIN = 1VP-P

Note 2

IN1→IN2

CT

1

2

2

2

3

2

3

IN1→IN3

CT

1

2

2

2

2

3

3

IN1→IN4

CT

1

2

2

2

2

2

3

Interchannel

crosstalk

IN1→MUTE

IN2→IN3

IN2→IN4

IN2→MUTE

CT

CT

CT

CT

1

2

2

2

1

2

2

1

2

2

1

2

2

2

2

2

∗

2

2

∗

∗

3

2

∗

2

3

3

2

f = 4.43MHz,

VIN = 1VP-P

Note 3

IN3→IN4

CT

2

2

1

2

2

2

3

IN3→MUTE

CT

2

2

1

2

∗

∗

2

IN4→MUTE

CT

2

2

2

1

∗

∗

2

IN 1

Frequency

IN 2

characteristic IN 3

IN 4

Gf

1

2

2

2

3

3

3 f = 10MHz /

Gf

2

1

2

2

3

2

3

1MHz

Gf

2

2

1

2

2

3

3

VIN = 1VP-P

Gf

2

2

2

1

2

2

3

Note 4

CTL pin

switching level

CTLA

CTLB

CTLC

VTH

2

2

1

2

1

3

3

VTH

2

1

2

2

3

1

3

VTH

1

2

2

2

3

3

1

Note 5

Note 6

∗ 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

•External dimensions (Units: mm)

25.2 ± 0.2

2.8 ± 0.2

1

2.54

10

0.6

0.8

0.3 ± 0.1

1.3

SIP10

4

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