TDK5110F 查看數據表（PDF） - Infineon Technologies

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TDK5110F

434 MHz ASK/FSK Transmitter in 10-pin Package

Infineon Technologies 

TDK5110F

Functional Description

Pin Symbol

No.

7 FSKDTA

Interface Schematic

VS

+1.2 V

60 kΩ

7

90 kΩ

Function

Digital frequency modulation can

be imparted to the Xtal Oscillator

by this pin. The VCO-frequency

varies in accordance to the

frequency of the reference

+1.1 V oscillator.

A logic high (FSKDTA > 1.5V or

30 µA open) sets the FSK switch to a

high impedance state.

A logic low (FSKDTA < 0.5 V)

closes the FSK switch from

FSKOUT (pin 4) to GND (pin 3).

A capacitor can be switched to the

reference crystal network this way.

The Xtal Oscillator frequency will

be shifted giving the designed FSK

frequency deviation.

Data Sheet

10

V 1.1, 2006-07-10

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