CXA1991N Ver la hoja de datos (PDF) - Sony Semiconductor

Número de pieza

componentes Descripción

Fabricante

CXA1991N

FM Pager/FM Multiplex Tuner

Sony Semiconductor 

Pin Description

Pin

Symbol

No.

Pin voltage (V)

FM AM

Equivalent circuit

CXA1991N

(VCC=3 V, Ta=25 °C)

Description

220k

1 AM IF IN 1.1 1.1

1

AM IF input pin.

2 AGC

0.3 0.4

2

130 100k

130

Connected to a capacitor.

9

9 DET OUT 0.9 0.7

Detection output pin.

3 FM IF IN 1.1 0

4 BAND

1.1 0

5 GND2

0

0

6 DISCRI

2.0 2.4

VCC

330

3

VCC

4

VCC

6

2k

1.1k

FM IF input pin.

AM/FM band switching pin.

AM when grounded, FM when

open.

IF system ground.

Connected to phase shift circuit

and ceramic discriminator.

7 VCC

3.0 3.0

—2—

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