TH7110 Просмотр технического описания (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 I/O Type

8 VEE_MIX1 ground

9 IF1P

analog I/O

IF1P

9

Functional Schematic

VCC

20p

20p

Description

MIX1 ground

open-collector output, to be

IF1N connected to external LC

10 tank that resonates at first IF

10 IF1N

analog I/O

IF1P

9

VEE

2x500µA

VCC

20p

20p

VEE

open-collector output, to be

IF1N connected to external LC

10 tank that resonates at first IF

11 VCC_MIX1 supply

12 VCC_MIX2 supply

13 OUT_MIX2 analog

output

14 VEE_IF

15 IN_IFA

ground

analog

input

VEE

2x500µA

VEE

OUT_MIX2

13

130Ω

6.8k

230µA

MIX1 positive supply

MIX2 positive supply

MIX2 output, approx. 330Ω

output impedance

VCC

VCC

IN_IFA

15

VEE

VCC

FBC2

17

2.2k

2.2k

200µA

VEE

FBC1

16

VEE

ground of MIX2, IFA and

DEMOD

IFA input, approx. 2.2kΩ

input impedance

VEE

Datasheet Rev 2.3 July 2001

Page 6 of 22

www.melexis.com

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