EVB71101B-418-FSK-C Melexis Inc, EVB71101B-418-FSK-C Datasheet

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EVB71101B-418-FSK-C

Manufacturer Part Number
EVB71101B-418-FSK-C
Description
EVALUATION BOARD TH71101 RECEIVR
Manufacturer
Melexis Inc
Type
Receiver, ASK/FSKr

Specifications of EVB71101B-418-FSK-C

Rohs Status
RoHS non-compliant
Frequency
418MHz
For Use With/related Products
TH71101
Other names
EVB71101-418-FSK
EVB71101-418-FSK
EVB71101-418F
EVB71101-418F
EVB71101B-418FSKC
Features
Ordering Information
Part No.
EVB71101-433-FSK-C
EVB71101-433-ASK-C
* EVB71101-XXX-YYY-C with XXX = Reception frequency (315MHz or 433.92MHz) and YYY = Modulation (FSK or ASK).
** The evaluation board is supplied with a SMA connector.
Application Examples
General Description
The TH71101 FSK/ASK single-conversion superheterodyne receiver IC is designed for applications in the
European 433 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220
telecommunications standard. It can also be used for any other system with carrier frequencies ranging from
300 MHz to 450 MHz (e.g. for applications to FCC part 15 and ARIB STD-T67).
39012 71101 01
Rev. 012
Single-conversion superhet architecture for low external component count
FSK demodulation with phase-coincidence demodulator
Low current consumption in active mode and very low standby current
Switchable LNA gain for improved dynamic range
RSSI allows signal strength indication and ASK detection
General digital data transmission
Tire Pressure Monitoring Systems (TPMS)
Remote Keyless Entry (RKE)
Wireless access control
Alarm and security systems
Garage door openers
Remote Controls
Home and building automation
Low-power telemetry systems
Page 1 of 14
Evaluation Board Description
EVB71101-315-FSK-C
EVB71101-315-ASK-C
Evaluation Board
315/433MHz Receiver
EVB71101
EVB Description
April/08

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EVB71101B-418-FSK-C Summary of contents

Page 1

Features Single-conversion superhet architecture for low external component count FSK demodulation with phase-coincidence demodulator Low current consumption in active mode and very low standby current Switchable LNA gain for improved dynamic range RSSI allows signal strength indication and ASK detection ...

Page 2

Document Content 1 Theory of Operation ...................................................................................................3 1.1 General ............................................................................................................................. 3 1.2 EVB Technical Data Overview ......................................................................................... 3 1.3 Block Diagram .................................................................................................................. 4 1.4 Mode Configurations ........................................................................................................ 4 1.5 LNA GAIN Control ............................................................................................................ 4 1.6 Frequency Planning.......................................................................................................... 4 1.6.1 Selected ...

Page 3

Theory of Operation 1.1 General With the TH71101 receiver chip, various circuit configurations can be arranged in order to meet a number of different customer requirements. For FSK reception the IF tank used in the phase coincidence demodulator can ...

Page 4

Block Diagram MIX1 IN_LNA LNA 31 LO VCO1 32 30 1.4 Mode Configurations ENRX 0 1 Note: ENRX are pulled down internally 1.5 LNA GAIN Control V GAIN_LNA < 0.8 V HIGH GAIN > ...

Page 5

By using the internal PLL synthesizer of the TH71101 with the fixed feedback divider ratio (DIV_16), two types of down-conversion are possible: low-side injection of LO and high-side injection of LO. The following table summarizes some ...

Page 6

Application Circuits 2.1 FSK Application Circuit 2.1.1 Circuit Diagram for FSK Reception GND RO VCC VCC ENRX GND IN_LNA 6 1 SAWFIL Circuit Features • Tolerates input frequency variations • Well-suited for NRZ, Manchester and similar ...

Page 7

Board Component Values for FSK Value Part Size @ 315 MHz C1 0805 0603 0603 6 0603 2 0603 33 nF C10 0603 1 nF C11 0603 1 nF ...

Page 8

Component Arrangement Top Side for FSK Reception Board size is 42.7mm x 37.5mm Melexis RF_input IN_LNA EVB711XX_4 39012 71101 01 Rev. 012 Evaluation Board Description 1 C15 R5 XTAL CB2 TH71101 CB1 ...

Page 9

ASK Application Circuit 2.2.1 Circuit Diagram for ASK Reception GND RO VCC VCC ENRX GND IN_LNA 1 6 SAWFIL 39012 71101 01 Rev. 012 Evaluation Board Description 1 2 C16 C17 XTAL C1 25 VEE C_RO ...

Page 10

Board Component Values for ASK Value Part Size @ 315 MHz C1 0805 0603 0603 6 0603 2 0603 33 nF C10 0603 1 nF C11 0603 1 nF ...

Page 11

Component Arrangement Top Side for ASK Reception Board size is 42.7mm x 37.5mm Melexis RF_input IN_LNA EVB711XX_4 39012 71101 01 Rev. 012 Evaluation Board Description XTAL CB2 TH71101 CB1 L3 C6 CB8 ...

Page 12

Evaluation Board Layouts Board layout data in Gerber format is available, board size is 37.5mm x 42.7mm. OUT_OA RSSI OUTP OUTN RO ENRX PCB top view 39012 71101 01 Rev. 012 315/433MHz Receiver Evaluation Board Description PCB bottom view ...

Page 13

Package Description The device TH71101 is RoHS compliant 12° Fig. 2: LQFP32 (Low profile Quad Flat Package) All Dimension in mm, coplanaríty < 0.1mm E1 min 7.00 9.00 max All Dimension ...

Page 14

Disclaimer 1) The information included in this documentation is subject to Melexis intellectual and other property rights. Reproduction of information is permissible only if the information will not be altered and is accom- panied by all associated conditions, limitations ...

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