TH71112(2001) Просмотр технического описания (PDF) - Melexis Microelectronic Systems

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TH71112
(Rev.:2001)

868/915MHz FSK/FM/ASK Receiver

Melexis Microelectronic Systems  

Technical Data

Mode Configurations

ENRX

Mode

0

SBY

1

ON

Note: ENRX are pulled down internally

TH71112

868/915MHz

FSK/FM/ASK Receiver

standby mode

entire chip active

Description

LNA Gain Control

VGAIN_LNA

Mode

Description

< 0.8 V

HIGH GAIN

LNA set to high gain by voltage at GAIN_LNA

> 1.4 V

LOW GAIN

LNA set to low gain by voltage at GAIN_LNA

Note: hysteresis between gain modes to ensure stability

Absolute Maximum Ratings

Parameter

Supply voltage

Input voltage

Input RF level

Storage temperature

Electrostatic discharge

Symbol

Vcc

VIN

Pimax

TSTG

ESD

Condition / Note

no damage

human body model,

MIL STD 833D

method 3015.7, all pins

except OUT_IFA

pin OUT_IFA

Min

0

- 0.3

-40

-500

-500

Max

7.0

VCC+0.3

10

+125

+500

+250

Unit

V

V

dBm

°C

V

V

Normal Operating Conditions

Parameter

Supply voltage

Operating temperature

Input frequency

Frequency deviation

FSK data rate

FM bandwidth

ASK data rate

Symbol

Vcc

Ta

fi

∆f

RFSK

fm

RASK

Condition

at FM or FSK

NRZ

NRZ

Min

Max

Unit

2.5

5.5

V

-40

+85

ºC

800

930

MHz

±5

±120

kHz

40

kbit/s

15

kHz

80

kbit/s

TH71112 Data Sheet

3901071112

Page 8 of 20

Nov. 2001

Rev. 005

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