TH7110 데이터 시트보기 (PDF) - Melexis Microelectronic Systems

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TH7110

315/433MHz FSK/FM/ASK Double-Conversion Superheterodyne Receiver

Melexis Microelectronic Systems  

TH7110

315/433MHz FSK/FM/ASK

Double-Conversion Superheterodyne Receiver

Pin No. Name

28 OAP

I/O Type

analog

input

Functional Schematic

OAP

50Ω

28

20µA

Description

positive OA input, input volt-

age limited to approx. 0.7

Vpp between pins OAP and

OAN

29 RSSI

analog

output

30 VEE_BIAS ground

31 OUTP

analog

output

32 OUTN

analog

output

33 VEE_PLL ground

34 VEE_RO ground

35 RO

analog

input

36 VCC_PLL supply

37 ENRX

digital

input

RSSI

29

50Ω

I (Pi)

36k

RSSI output, for RSSI and

ASK detection, approx.

36kΩ output impedance

OUTP

31

50Ω

20µA

ground for general bias

system and OA

FSK/FM positive output,

output impedance of

100kΩ to 300kΩ

20µA

OUTN

32

50Ω

20µA

FSK/FM negative output,

output impedance of

100kΩ to 300kΩ

20µA

50k

RO

35

30p

30p

ENRX

1.5k

37

ground of dividers and PFD

RO ground

RO input, Colpitts type os-

cillator with internal feedback

capacitors

positive supply of RO, DIV,

PFD and charge pump

mode control input

(CMOS input)

Datasheet Rev 2.3 July 2001

Page 9 of 22

www.melexis.com

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