BA7357S View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BA7357S

VIF / SIF signal processor

ROHM Semiconductor 

Video ICs

•Equivalent circuits

Pin No. Pin name IN / OUT Standard voltage

Equivalent circuit

VCC

500

1 AFTOUT OUT

—

1k

1

500

GND

VCC

4k

2

RFAGC OUT

—

2

BA7357S

Function

AFT output.

Vreg / GND push-pull output.

RFAGC output.

Open-collector output. Gain can be

set using an external resistor

(minimum value of the maximum sink

current of pin 2 is 0.7mA) . Keep the

pin 2 voltage at 10.5V or less.

3 AGCADJ —

2.7V

(when 100kΩ

resistor

connected)

3

GND

VCC

4.5k

RFAGC delay point adjustment.

Connect to GND via a variable

resistor (approx. 100kΩ).

4k

1k

25.2k

400

GND

VCC

For filter time constant for VIFAGC.

4 AGCFLT —

5.0V

4

GND

5

GND1 —

0V

—

∗ VCC and VCC2 in the equivalent circuit diagrams are connected to the Vreg terminal (pin 18).

GND terminal for VIF, AGC and AFT.

4

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