TDK5111F 데이터 시트보기 (PDF) - Infineon Technologies

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TDK5111F

315 MHz ASK/FSK Transmitter in 10-pin Package

Infineon Technologies 

TDK5111F

Functional Description

Table 3

Pin Definition and Function1

Pin Symbol Interface Schematic

No.

1 CLKOUT

VS

1

300 Ω

Function

Clock output to supply an external

device.

An external pull-up resistor has to

be added in accordance to the

driving requirements of the

external device.

The clock frequency is 615.2 kHz.

2 VS

3 GND

4 FSKOUT

VS

This pin is the positive supply of

the transmitter electronics.

An RF bypass capacitor should be

connected directly to this pin and

returned to GND (pin 3) as short

as possible.

General ground connection.

This pin is connected to a switch to

VS

GND (pin 3).

200 µA

120 kΩ

200 kΩ

The switch is closed when the

signal at FSKDTA (pin 7) is in a

4 logic low state.

The switch is open when the signal

at FSKDTA (pin 7) is in a logic high

state.

FSKOUT can switch an additional

capacitor to the reference crystal

network to pull the crystal

frequency by an amount resulting

in the desired FSK frequency shift

of the transmitter output

frequency.

Data Sheet

8

V 1.1, 2007-09-18

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