EVB71111 Melexis Company, EVB71111 Datasheet

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EVB71111

Manufacturer Part Number
EVB71111
Description
Evaluation Board For Th71111
Manufacturer
Melexis Company
Datasheet
Features
Ordering Information
Part No.
EVB71111-868-FSK-C
EVB71111-868-ASK-C
* EVB71111-XXX-YYY-C with XXX = Reception frequency (868.3MHz or 915MHz) and YYY = Modulation (FSK or ASK).
** The evaluation board is supplied with a SMA connector.
Application Examples
General Description
The TH71111 FSK/ASK single-conversion superheterodyne receiver IC is designed for applications in the
European
telecommunications standard. It can also be used for any other system with carrier frequencies ranging from
800 MHz to 930 MHz (e.g. for applications to FCC part 15).
39012 71111 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
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
868
MHz
industrial-scientific-medical
Page 1 of 14
(ISM)
band,
Evaluation Board Description
EVB71111-915-FSK-C
EVB71111-915-ASK-C
Evaluation Board
according
868/915MHz Receiver
to
EVB71111
the
EVB Description
EN
300
April/08
220

Related parts for EVB71111

EVB71111 Summary of contents

Page 1

... RSSI allows signal strength indication and ASK detection Ordering Information Part No. EVB71111-868-FSK-C EVB71111-868-ASK-C * EVB71111-XXX-YYY-C with XXX = Reception frequency (868.3MHz or 915MHz) and YYY = Modulation (FSK or ASK). ** The evaluation board is supplied with a SMA connector. Application Examples Tire Pressure Monitoring Systems (TPMS) Remote Keyless Entry (RKE) ...

Page 2

... Circuit Diagram for ASK Reception ............................................................................................. 9 2.2.2 Board Component Values for ASK ............................................................................................ 10 2.2.3 Component Arrangement Top Side for ASK Reception ............................................................ 11 3 Evaluation Board Layouts .......................................................................................12 4 Package Description ................................................................................................13 4.1 Soldering Information ..................................................................................................... 13 5 Disclaimer .................................................................................................................14 39012 71111 01 Rev. 012 868/915MHz Receiver Evaluation Board Description Page EVB71111 EVB Description April/08 ...

Page 3

... Input frequency acceptance range ±100 kHz RSSI range FSK deviation range: ±2.5 kHz to ±80 kHz , 180 kHz IF filter BW, incl SAW front-end-filter loss , ± 20 kHz FSK deviation, 180 kHz IF filter BW, incl SAW front-end- Page EVB71111 868/915MHz Receiver 0 dBm @ FSK EVB Description April/08 ...

Page 4

... IF IF MIX2 IFA DIV_32 PFD Fig. 1: TH71111 block diagram Mode RX standby RX active Mode LOW GAIN Page EVB71111 868/915MHz Receiver OUTP MIX3 23 OUTN 24 OAP 20 OA OAN 19 OUT_OA 18 BIAS Description RX disabled RX enable Description ...

Page 5

... RF – 2IF RF = 868.3 MHz RF = 915 MHz high low 27.46875 28.25938 879.0 904.3 889.7 893.6 f min high 789.3 25.0 800 10.7 Page EVB71111 high (RF + IF)/32 32 • REF LO – 2IF RF = 915 MHz high 28.92813 925.7 936.4 f max low 940.7 29.0625 930 10.7 EVB Description ...

Page 6

... VCC CB2 ENRX 28 R1 TH71111 VEE 31 IN_LNA L2 32 VCC CB1 C7 L3 CB8 VCC Page EVB71111 868/915MHz Receiver FSK output 1 2 CB3 VCC CERDIS 16 C12 OUT_IFA 15 VCC VCC 14 CB4 C11 FBC2 13 C9 FBC1 12 C10 R2 IN_IFA 11 VEE 10 OUT_MIX2 ...

Page 7

... MHz 3dB (f = 915 MHz 180 kHz 3dB Page EVB71111 868/915MHz Receiver Description crystal series capacitor loop filter capacitor capacitor to match SAW filter input capacitor to match SAW filter output MIX1 input matching capacitor IFA feedback capacitor IFA feedback capacitor ...

Page 8

... Board size is 42.7mm x 37.5mm Melexis RF_input IN_LNA EVB711XX_4 39012 71111 01 Rev. 012 Evaluation Board Description 1 C15 R5 XTAL CB2 TH71111 CB1 L3 CB8 Page EVB71111 868/915MHz Receiver 1 1 C16 R4 0Ω C17 CB3 17 16 C10 9 8 CB5 C7 VCC EVB Description April/08 ...

Page 9

... RO 27 VCC CB2 28 ENRX TH71111 VEE IN_LNA VCC CB1 C7 L3 CB8 VCC Page EVB71111 868/915MHz Receiver ASK output 1 2 CB3 VCC 16 OUT_IFA 15 VCC VCC 14 CB4 C11 FBC2 13 C9 FBC1 12 C10 R2 IN_IFA 11 VEE 10 OUT_MIX2 9 CERFIL ...

Page 10

... MHz 3dB (f = 915 MHz 180 kHz 3dB Page EVB71111 868/915MHz Receiver Description crystal series capacitor loop filter capacitor capacitor to match SAW filter input capacitor to match SAW filter output MIX1 input matching capacitor IFA feedback capacitor IFA feedback capacitor ...

Page 11

... Board size is 42.7mm x 37.5mm Melexis RF_input IN_LNA EVB711XX_4 39012 71111 01 Rev. 012 Evaluation Board Description XTAL CB2 TH71111 CB1 L3 CB8 Page EVB71111 868/915MHz Receiver 1 1 C16 C17 0Ω CB3 17 16 C10 9 8 CB5 C7 VCC EVB Description April/08 ...

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 71111 01 Rev. 012 868/915MHz Receiver Evaluation Board Description PCB bottom view Page EVB71111 EVB Description April/08 ...

Page 13

... L 1° LQFP32 (Low profile Quad Flat Package 1.40 0.05 1.35 0.8 1.60 0.15 1.45 0.055 0.002 0.053 0.031 0.063 0.006 0.057 Page EVB71111 868/915MHz Receiver 1° 0.25 (0.0098) .10 (.004) α 0.30 0.09 0.45 0° 0.45 0.20 0.75 7° 0.012 0.0035 0.018 0° 0.018 ...

Page 14

... Europe, Africa: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com 39012 71111 01 Rev. 012 Evaluation Board Description www.melexis.com Americas: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com ISO/TS 16949 and ISO14001 Certified Page EVB71111 868/915MHz Receiver Asia: Phone: +32 1367 0495 E-mail: sales_asia@melexis.com EVB Description April/08 ...

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