TA2030FN

2002-10-30

4

Terminal

Voltage(V)

Termi

-

nal

No.

Terminal

Name

Function

Internal Circuit

FM

TV

10

OSC OUT

Output of OSC buffer

circuit.

1.1

1.1

11

FM OSC

FM OSC tank circuit is

connected.

(colpitts type oscillator)

1.2

1.2

12

TV OSC

TV OSC tank circuit is

connected.

(colpitts type oscillator)

1.2

1.2

13

1.2

1.2

16

GND

GND(except RF part)

0

0

Application Note

1. PW SW

It is necessary to connect an external pull-down resistor with the terminal PW SW (pin(7)), in case that this IC

is turned on due to external noise etc.

2. MODE SW

It is necessary to connect an external pull-down resistor with the terminal MODE SW (pin(6)), in case that this

IC doesn't operate normally due to external noise etc.

3. RF GND

This IC has two GND terminals (pin(3): RF GND, pin(16): GND). External parts shown in below should be

connected with RF GND (pin(3)), and other parts should be connected with GND (pin(16)).

･

By-pass capacitor at pin(14) (FM RF) and pin(15) (TV RF)

･

By-pass capacitor at pin(4) (FM BY) and pin(2) (TV BY)

The pattern diagram of capacitor connected with pin(2) and pin(4) should be shortly, because RF circuit and MIX

circuit operate on the voltage of pin(2) or pin(4).