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Fabricante

TH71111

868/915MHz FSK/FM/ASK Receiver

Melexis Microelectronic Systems  

TH71111

868/915MHz

FSK/FM/ASK Receiver

Pin No. Name

21 RSSI

I/O Type

analog

output

Functional Schematic

RSSI

21

I (Pi)

50Ω

36k

22 VEE_BIAS ground

23 OUTP

analog

output

OUTP

OUTN

50Ω

24 OUTN

analog

23

output

24

20µA

20µA

25 VEE_RO ground

26 RO

analog

input

50k

RO

26

30p

30p

27 VCC_PLL supply

28 ENRX

digital

input

ENRX

1.5k

28

Description

RSSI output, for RSSI and

ASK detection, approx.

36kΩ output impedance

ground of general

bias system and OA

FSK/FM positive output,

output impedance of

100kΩ to 300kΩ

FSK/FM negative output,

output impedance of

100kΩ to 300kΩ

ground of DIV, PFD, RO

and charge pump

RO input, Colpitts type

oscillator with internal feed-

back capacitors

positive supply of DIV, PFD,

RO and charge pump

mode control input,

CMOS-compatible with

internal pull-down circuit

29 LF

analog I/O

LF

29

30 VEE_LNA ground

32 VCC_LNA supply

200Ω

400Ω

4p

charge pump output and

VCO1 control input

ground of LNA biasing

positive supply of

LNA biasing

39010 71111

Rev. 013

Page 8 of 22

Data Sheet

June/07

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