Q67036-A1175 데이터 시트보기 (PDF) - Infineon Technologies

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Q67036-A1175

Wireless Components ASK/FSK Transmitter 915 MHz

Infineon Technologies 

TDA 5102

Functional Description

12 FSKGND

13 PAGND

14 PAOUT

Ground connection for FSK modulation out-

put FSKOUT.

Ground connection of the power amplifier.

The RF ground return path of the power

amplifier output PAOUT (pin 14) has to be

concentrated to this pin.

RF output pin of the transmitter.

14

A DC path to the positive supply VS has to

be supplied by the antenna matching net-

work.

13

15

FSEL

This pin has to be left open to select the

VS

+1.2 V

915 MHz transmitter frequency range.

A logic low (FSEL < 0.5 V) applied to this pin

30 kΩ

15

sets the transmitter to the 457 MHz fre-

quency range.

90 kΩ

+1.1 V

A logic high (FSEL open) applied to this pin

sets the transmitter to the 915 MHz fre-

30 µA

quency range.

16 CSEL

VS

+1.2 V

VS

This pin is used to select the desired refer-

ence frequency.

60 kΩ

5 µA

A logic low (CSEL < 0.2 V) applied to this pin

sets the internal frequency divider to accept

16

a reference frequency of 7.15 MHz.

60 kΩ

+0.8 V

A logic high (CSEL open) applied to this pin

sets the internal frequency divider to accept

a reference frequency of 14.3 MHz.

Wireless Components

3-6

Specification, October 2001

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