M61140FP Ver la hoja de datos (PDF) - Renesas Electronics

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M61140FP

Tuner Single Chip

Renesas Electronics 

M61140FP

Pin No. Pin name

36 IF2 GND

37 VIF IN 1

38 VIF IN 2

Function

IF2 grand terminal. This grand is

exclusively used by circuit of IF

amplifier

IF signal thew SAW filter is input. It is 33

a balance type input.

Circuit Diagram

37

38

39 AF BYPASS AF bypass terminal. It is connected 33

to one of the input of a differential

amplifier, external capacitor provides

AC filtering. When resistor is

39

connected in series with capacitor, it

100

is possible to lows the amplitude of

the audio output. When audio output

terminal is not used, please connect

pin 22 to GND.

40 AUDIO OUT Sound output terminal. De-emphasis 33

is achieved by external components.

2 00

2K

2K

14K

30K

1K

30K 1K

40

41 QIF OUT

QIF output terminal. FM signal which 33

is converted to 4.5MHz is output.

4 00

Additionally, this pin has dual

function of being VIF VCO type

3 0K

selection. Connected to GND via

1.2kΩ

6p

41

42 AFT OUT

AFT output terminal. Because of

33

pulse-like signal output, a smoothing

capacitor is connected externally. In

addition, AFT detection sensitivity is

set by external resistor.

42

43 VIF GND

VIF GND terminal.

300u

50

300u

Rev.1.3 Jun 14, 2004 page 8 of 27

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