ENA0654 datasheet(11/12 Pages) SANYO

Part #	ENA0654

Description	Monolithic Linear IC IF Signal Processing (VIFSIF) IC that Supports the PAL Video Standard for TV Sets and VCRs

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Manufacturer	SANYO [Sanyo Semicon Device]

Direct Link	https://www.sanyo-av.com/us/

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11 / 12 page

LA75520KVA

No.A0654-11/12

Continued from preceding page.

Pin No.

Pin name

Function

Equivalent Circuit

16

IF AGC

IF AGC filter connection pin.

The signal peak-detected by the built-in AGC

detector is converted to the AGC voltage at pin 16.

Additionally, a second AGC filter (a lag-lead filter)

used to create the dual time constants is provided

internally in the IC.

Use a 0.022

μF capacitor as the external capacitor

(C1), and adjust the value according to the sag,

AGC speed, and other characteristics.

16

5k

Ω

1k

Ω

1k

Ω

C1

17

18

VIF IN2

VIF IN1

VIF amplifier input pin

The input circuit is a balanced circuit, and the input

impedance is as follows:

R

≈ 1.0kΩ

18

17

19

GND

20

RF AGC VR

RF AGC volume connection pin

This pin sets the tuner RF AGC operating point.

Also, the FM output and the video output can both

be muted at the same time by connecting this pin to

ground.

20

21

SIF CARRIER OUT

First SIF output pin

This is an emitter-follower output with a 200

Ω

resistor attached in series.

21

200

Ω

22

AUDIO BIAS

FILTER

Connection pin for a filter used to hold the FM

detector output DC voltage fixed. Normally, a 1

μF

electrolytic capacitor should be used. The

capacitance (CI) should be increased if the low

band (around 50Hz) frequency characteristics need

to be improved.

22

300

Ω

300

Ω 40kΩ

40k

Ω

C1

+

Continued on next page.

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ENA0654 Datasheet(PDF) 11 Page - Sanyo Semicon Device

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