LA1061 Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA1061

Antenna switching controller

SANYO -> Panasonic 

Continued from preceding page.

Pin No. Function

AGC

9

Voltage output

Mono-stable

10 multi-vibrator

3

D/A

11

converter

Mono-stable

12 multi-vibrator

2

Weak signal

13

comparator

Strong signal

14

comparator

LA1061M

External circuits

Unit (resistance : Ω, capacitance : F)

Notes

The LA1061M counts antenna

switches for the time interval

generated by multi-vibrator 2.

The internal D/A converter

outputs a current on pin 11,

which is converted to a voltage

by the resistor connected to

this pin. If this voltage exceeds

a certain value, that is, the

switching frequency is too

high , multi-vibrator 3 operates

to hold the antenna switching

outputs at Main for the time set

by multi-vibrator 3.

The threshold level is set at

approximately 2V.

The threshold level is set at

approximately 1V.

No.3044-6/8

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