TH7111 データシートの表示（PDF） - Melexis Microelectronic Systems

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TH7111

868/915MHz FSK/FM/ASK Receiver

Melexis Microelectronic Systems  

TH7111

868/915MHz

FSK/FM/ASK Receiver

Pin No. Name

22 IN_MIX2

I/O Type

analog

input

24 VCO2_B

analog

input

23 VCO2_E

analog

output

25 VCC_BIAS supply

26 OUT_OA

analog

output

Functional Schematic

IN_MIX2

22

VCO2_B

840Ω

840Ω

20µA

VCC

VCC

47k

24

VEE

VCC

VCO2_E

23

VEE

OUT_OA

50Ω

26

Description

external LO2 input port of

MIX2, approx. 1kΩ single-

ended

VCO2 input, base of

a bipolar transistor

VCO2 output, emitter of

a bipolar transistor

positive supply of general

bias system and OA

OA output, 40uA current

drive capability

27 OAN

28 OAP

29 RSSI

analog

input

analog

input

analog

output

30 VEE_BIAS ground

OAN

50Ω

27

RSSI

29

20µA

50Ω

50Ω

I (Pi)

negative OA input, input

voltage limited to approx.

0.7 Vpp between pins OAP

OAP and OAN

positive OA input, input

28 voltage limited to approx.

0.7 Vpp between pins OAP

and OAN

RSSI output, for RSSI and

ASK detection, approx.

36kΩ output impedance

36k

ground for general bias

system and OA

TH7111 Data Sheet

3901007111

Page 7 of 20

Nov. 2001

Rev. 005

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