BA7665FS Ver la hoja de datos (PDF) - ROHM Semiconductor

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BA7665FS

3-channel 75Ω driver with Y / C MIX

ROHM Semiconductor 

Multimedia ICs

•Guaranteed design values (unless otherwise noted, Ta = 25°C, VCC = 5V)

Parameter

Symbol

Min. Typ. Max. Unit

Conditions

Voltage gain

Gv

5.5

6.0

6.5

dB f = 4.43MHz, 1VP-P

Interchannel voltage gain

∆Gv

– 0.5

0.0

0.5

dB f = 100kHz, 1VP-P

BA7665FS

•Mute SW mode settings

• MUTEA (1pin)

H

3ch MUTE

L

NORMAL

• MUTEB (8pin)

H CHROMA MUTE

L

NORMAL

•Pin descriptions and equivalent I / O circuits

Pin. No Pin name IN OUT Standard potential

Equivalent I / O circuit

1

MUTEA K —

—

8

MUTEB

15k

8k

Pin description

Mute control pin

When MUTE A (pin 1) goes high, all

three channels are muted at the same

time. When MUTE B (pin 8) goes

high, OUTB and the MIXOUT chroma

signals are muted.

2

INA K —

2.0V

3

4

GND — —

0V

5

Signal input pin

This is the input pin for the composite

Y signal (sync-tip clamp input).

↓

Ground pin

GND

7

INB K —

2.0V

Signal input pin

Bias-type input pin for the chroma

20k

signal. The input impedance is 20kΩ.

↓

5

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