EVB72016-868-FM-A MELEXIS [Melexis Microelectronic Systems], EVB72016-868-FM-A Datasheet

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EVB72016-868-FM-A

Manufacturer Part Number
EVB72016-868-FM-A
Description
433MHz FSK/ASK Transmitter Evaluation Board Description
Manufacturer
MELEXIS [Melexis Microelectronic Systems]
Datasheet
Features
! Fully integrated PLL-stabilized VCO
! Frequency range from 380 MHz to 450 MHz
! Single-ended RF output
! FSK through crystal pulling allows modulation
! High FSK deviation possible for wideband data
! ASK achieved by on/off keying of internal
! Wide power supply range from 1.95 V to 5.5 V
! Microcontroller clock output
Ordering Information
Part No. (see paragraph 5)
EVB72016-433-FSK-C
Note: EVB default population is FSK, ASK modification according to section 3.1.
Application Examples
! 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
General Description
The TH72016 evaluation board is designed to demonstrate the performance of the transmitter IC for conduc-
tive measurements. The power amplifier is matched to 50 Ohms by means of a π-matching network to oper-
ate at a resonant frequency of 433 MHz.
The EVB72016 also features a clock output applicable to drive a microcontroller. The clock frequency can be
selected by an external logic signal.
3901272016 01
Rev. 004
from DC to 40 kbit/s
transmission
power amplifier up to 40 kbit/s
Page 1 of 12
! Very low standby current
! On-chip low voltage detector
! High over-all frequency accuracy
! FSK deviation and center frequency independ-
! Adjustable output power range from
! Adjustable current consumption from
! Conforms to EN 300 220 and similar standards
Evaluation Board Example
ently adjustable
-12 dBm to +10 dBm (at 50 Ω)
3.8 mA to 11.0 mA
433MHz FSK/ASK Transmitter
Evaluation Board Description
EVB72016
EVB Description
June/07

Related parts for EVB72016-868-FM-A

EVB72016-868-FM-A Summary of contents

Page 1

... The TH72016 evaluation board is designed to demonstrate the performance of the transmitter IC for conduc- tive measurements. The power amplifier is matched to 50 Ohms by means of a π-matching network to oper- ate at a resonant frequency of 433 MHz. The EVB72016 also features a clock output applicable to drive a microcontroller. The clock frequency can be selected by an external logic signal. 3901272016 01 Rev ...

Page 2

... Board Component Values ................................................................................................ 7 Ω 3.2 50 Connector Board PCB Top View .............................................................................. 8 3.3 Board Connection............................................................................................................. 8 4 Evaluation Board Layout ...........................................................................................9 5 Board Variants............................................................................................................9 6 Package Description ................................................................................................10 6.1 Soldering Information ..................................................................................................... 10 6.2 Recommended PCB Footprints ...................................................................................... 10 7 Disclaimer .................................................................................................................12 3901272016 01 Rev. 004 433MHz FSK/ASK Transmitter Evaluation Board Description Page EVB72016 EVB Description June/07 ...

Page 3

... Rev. 004 433MHz FSK/ASK Transmitter Evaluation Board Description RPS PSEL VCC 7 10 PLL 32 PFD XBUF VCO CP Block diagram with external components Page EVB72016 can be adjusted in out R1 ASKDTA 6 antenna 8 OUT matching PA network 4 mode EN control 9 VEE ...

Page 4

... FSKDTA given load f max min CX1 CRO CX1+CRO Fig. 3: Crystal pulling characteristic Page EVB72016 VCC ROI XTAL FSKSW CX2 CX1 VEE Description - Δf (FSK switch is closed min c + Δf (FSK switch is open max c XTAL ...

Page 5

... V. This is done in order to prevent unwanted emission of the transmitter if the supply voltage is too low. 3901272016 01 Rev. 004 433MHz FSK/ASK Transmitter Evaluation Board Description RPS PSEL & & & Fig. 4: Block diagram of output power control circuitry Page EVB72016 & & OUT EVB Description June/07 ...

Page 6

... After successful PLL lock, the LOCK signal turns on the power amplifier, high EN low high LOCK low high PSEL low t Timing diagrams for FSK and ASK modulation Page EVB72016 Mode Description TX standby TX disabled TX active TX / CKOUT CKOUT active enabled Clock frequency / f =433.92 MHz c 3.39 MHz ...

Page 7

... ASK jumper (for ASK only), see data sheet section 4.7 ±20% de-coupling capacitor ±10% de-coupling capacitor fundamental-mode crystal pF, C0, max = 5 pF Ω ±10% ROI coupling capacitor, only required for external reference frequency input Page EVB72016 Description , note 1 C EVB Description June/07 ...

Page 8

... CB0 Board size Clock divider input, (CMOS, see sect. 2.9) CKDIV CKOUT Clock output, (CMOS, see section 2.9) External reference frequency input RO Several ground pins Page EVB72016 EVB Description June/07 ...

Page 9

... EVB72016 –315 –433 –868 –915 Note: available EVB setups 3901272016 01 Rev. 004 433MHz FSK/ASK Transmitter Evaluation Board Description PCB bottom view Modulation –FSK according to section 3.1 –ASK –FM Page EVB72016 Board Execution antenna version –A connector version –C EVB Description June/07 ...

Page 10

... Dimensions min 3.55 1.9 3.2 max 3.90 2.3 3.6 th all Dimensions in inch min 0.1398 0.0748 0.1260 0.0512 0.0098 0.0276 0.0591 max 0.1535 0.0906 0.1417 0.0669 0.0118 0.0394 0.0197 Fig. 8: PCB land pattern style Page EVB72016 D2 L 0.23 0.36 0.225x45° 0.3 0.18 0.50 0.5 0.30 0.0118 0.0071 0.0197 0.0197 ...

Page 11

... Your Notes 3901272016 01 Rev. 004 433MHz FSK/ASK Transmitter Evaluation Board Description Page EVB72016 EVB Description June/07 ...

Page 12

... Europe, Africa: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com 3901272016 01 Rev. 004 433MHz FSK/ASK Transmitter 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 EVB72016 Asia: Phone: +32 1367 0495 E-mail: sales_asia@melexis.com EVB Description June/07 ...

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