S1A0427B01 데이터 시트보기 (PDF) - Samsung

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S1A0427B01

AM/FM 1 CHIP RADIO

Samsung 

S1A0427B01

AM/FM 1 CHIP RADIO

FUNCTION DESCRIPTION (PIN 16 DC VOLTAGE)

1. IF Gain Grouping Table

(1) Test Condition: VCC = 9V (Pin 13).

Pin 8 resistance (AM) = 47kΩ

Pin 16 resistance (FM) = 1.2kΩ

(2) Grouping Table

V16(FM)

2.4 − 2.85V

V16(AM)

1.4 - 1.7 V

2B

2. IF gain is determined by DC voltage appeared at IC Pin 16.

The DC voltage at Pin 16 to the following values:

AM = 1.4 − 1.65V (DC)

FM = 1.9 − 2.10V (DC)

AM gain can be adjusted by the loading resistor value of Pin 8 (AM) from 33kΩ to infinity.

FM gain can be adjusted by the loading resistor value of Pin 16 (FM) from 3kΩ to 680.

Recommended resistance (Pin 8, Pin 16).

Pin 8 (AM) = 47kΩ

Pin 16 (FM) = 470kΩ

6

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