BA7665FS datasheet(5/8 Pages) ROHM

5 / 8 page

Multimedia ICs

BA7665FS

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Voltage gain

Interchannel voltage gain

∆Gv

5.5

– 0.5

6.0

0.0

6.5

0.5

f = 4.43MHz, 1VP-P

f = 100kHz, 1VP-P

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

•Mute SW mode settings

3ch MUTE

• MUTEA (1pin)

NORMAL

CHROMA MUTE

• MUTEB (8pin)

NORMAL

•Pin descriptions and equivalent I / O circuits

Pin. No

Pin name

OUT Standard potential

Equivalent I / O circuit

Pin description

MUTEA

MUTEB

——

—

2.0V

—

2.0V

——

INA

INB

GND

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.

Signal input pin

This is the input pin for the composite

Y signal (sync-tip clamp input).

Ground pin

Signal input pin

Bias-type input pin for the chroma

signal. The input impedance is 20k

Ω.

15k

20k

↓

GND

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