CXA1737R Ver la hoja de datos (PDF) - Sony Semiconductor

Número de pieza

componentes Descripción

Fabricante

CXA1737R

AFM Stereo Signal Processor for 8 mm VCR

Sony Semiconductor 

CXA1737R

Pin

No.

Symbol

Pin voltage

DC

AC

23 BPFMONI

During

1.5M BPF

monitor-

ing

1.09V Reference

output

During 1.5M BPF

1.7M BPF

= 180mVp-p

1.7M BPF

monitor- = 190mVp-p

ing

2.51V

Equivalent circuit

1.5M BPF OUT

VCC2

100

23

1.7M BPF OUT

GND

Description

This pin is for measurement

which monitors the BPF

output.

For monitoring 1.5M BPF

characteristics, connect 4.7kΩ

resistor to GND.

For monitoring 1.7M BPF

characteristics, connect 4.7kΩ

resistor to Vcc.

24 RECFMOUT 0.96V

24

1.5M + 1.7M

reference

output

VCC2

100

220µ

GND

Recording FM modulated

output pin. Reference output

is 220mVp-p for 1.5M

component; 175mVp-p for

1.7M component.

25 VCT

1.89V

—

25

60k

1k

60k

VCC1

50µ

GND

IC internal bias pin. Connect

a decoupling capacitor.

26 BPF ADJ

See

Graph 2.

—

VCC2

47k

47k

23k

23k

26

Pin for varying the BPF fo.

The variable width is 0 to Vcc.

20µ

73k

73k

20µ

GND

–9–

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