EVB72015-433-FSK-C Melexis Inc, EVB72015-433-FSK-C Datasheet

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EVB72015-433-FSK-C

Manufacturer Part Number
EVB72015-433-FSK-C
Description
EVAL BOARD 433MHZ FSK/ASK TRANSM
Manufacturer
Melexis Inc
Type
Transmitter, ASK, FSKr

Specifications of EVB72015-433-FSK-C

Frequency
433MHz
For Use With/related Products
TH72005, TH72001, TH72002
Other names
Q3477881D
Features
Ordering Information
Application Examples
General Description
The TH72015 FSK/ASK transmitter IC is designed for applications in the European 433 MHz industrial-
scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard; but it can also be
used in any other country with similar frequency bands.
The transmitter's carrier frequency f
integrated PLL synthesizer ensures that each RF value, ranging from 380 MHz to 450 MHz, can be achieved
by using a crystal with a reference frequency according to: f
divider ratio.
3901072015
Rev. 010
Part Number
TH72015
Fully integrated PLL-stabilized VCO
Frequency range from 380 MHz to 450 MHz
Single-ended RF output
FSK through crystal pulling allows modulation
from DC to 40 kbit/s
High FSK deviation possible for wideband data
transmission
ASK achieved by on/off keying of internal
power amplifier up to 40 kbit/s
Wide power supply range from 1.95 V to 5.5 V
Very low standby current
Tire Pressure Monitoring System (TPMS)
Remote Keyless Entry (RKE)
Automatic Meter Reading (AMR)
Alarm and security systems
Garage door openers
Home and building automation
Low-power telemetry
Wireless access control
Temperature Code
K (-40 °C to 125 °C)
c
is determined by the frequency of the reference crystal f
Page 1 of 20
LD (10L QFN 3x3 dual)
Package Code
Pin Description
On-chip low voltage detector
High over-all frequency accuracy
FSK deviation and center frequency
independently adjustable
Adjustable output power range from
-12 dBm to +10 dBm
Adjustable current consumption from
3.4 mA to 10.6 mA
Conforms to EN 300 220 and similar standards
10-pin quad flat no lead (QFN) package
ASKDTA
FSKDTA
FSKSW
ref
ENTX
= f
ROI
c
/N, where N = 32 is the PLL feedback
top view
FSK/ASK Transmitter
Delivery Form
121 pc/tube
5000 pc/T&R
VCC
VEE
O UT
PSEL
V EE
TH72015
433MHz
Data Sheet
Apr/11
ref
. The

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EVB72015-433-FSK-C Summary of contents

Page 1

Features Fully integrated PLL-stabilized VCO Frequency range from 380 MHz to 450 MHz Single-ended RF output FSK through crystal pulling allows modulation from kbit/s High FSK deviation possible for wideband data transmission ASK achieved by on/off keying ...

Page 2

Document Content 1 Theory of Operation ...................................................................................................3 1.1 General ............................................................................................................................. 3 1.2 Block Diagram .................................................................................................................. 3 2 Functional Description ..............................................................................................3 2.1 Crystal Oscillator .............................................................................................................. 3 2.2 FSK Modulation ................................................................................................................ 4 2.3 Crystal Pulling................................................................................................................... 4 2.4 ASK Modulation................................................................................................................ 5 2.5 Output ...

Page 3

Theory of Operation 1.1 General As depicted in Fig.1, the TH72015 transmitter consists of a fully integrated voltage-controlled oscillator (VCO), a divide-by-32 divider (div32), a phase-frequency detector (PFD) and a charge pump (CP). An internal loop filter determines the ...

Page 4

FSK Modulation FSK modulation can be achieved by pulling the crystal oscillator frequency. compatible data stream applied at the pin FSKDTA digitally modulates the XOSC via an integrated NMOS switch. Two external pulling capacitors CX1 and CX2 allow the ...

Page 5

ASK Modulation The PLL transmitter can be ASK-modulated by applying a data stream directly at the pin ASKDTA. This turns the internal current sources of the power amplifier on and off and therefore leads to an ASK signal at ...

Page 6

Mode Control Logic The mode control logic allows two different modes of operation as listed in the following table. The mode control pin ENTX is pulled- down internally. This guarantees that the whole circuit is shut down if this ...

Page 7

Pin Definition and Description Pin No. Name I/O Type 1 ASKDTA input 2 FSKDTA input 3 FSKSW analog I/O 4 ROI analog I/O 5 ENTX input 6 PSEL analog I/O 7 VEE ground 8 OUT output 9 VEE ground ...

Page 8

Electrical Characteristics 4.1 Absolute Maximum Ratings Parameter Supply voltage Input voltage Storage temperature Junction temperature Thermal Resistance Power dissipation Electrostatic discharge 4.2 Normal Operating Conditions Parameter Supply voltage Operating temperature Input low voltage CMOS Input high voltage CMOS XOSC ...

Page 9

DC Characteristics all parameters under normal operating conditions, unless otherwise stated; typical values °C and V A Parameter Operating Currents Standby current Supply current in power step 0 Supply current in power step 1 Supply ...

Page 10

AC Characteristics all parameters under normal operating conditions, unless otherwise stated; typical values °C and V A Parameter CW Spectrum Characteristics Output power in step 0 (Isolation in off-state) Output power in step 1 Output ...

Page 11

Typical Operating Characteristics 5.1 DC Characteristics I SBY 5µA 4µA 3µA 2µA 1µA 200nA 150nA 100nA 50nA 0 2.0 2.5 3.4 3.0 2.6 2.2 1.8 2.2 2.6 1.8 3901072015 Rev. 010 Standby current 3.0 3.5 4.0 4.5 Vcc [V] ...

Page 12

Rev. 010 power step 1 3.4 3.8 4.2 3.0 Vcc [V] Fig. 8: Supply current in power step 1 power step 2 ...

Page 13

Rev. 010 power step 3 3.4 3.8 4.2 3.0 Vcc [V] Fig. 10: Supply current in power step 3 ...

Page 14

AC Characteristics • Data according to test circuit in Fig. 18 -11.5 -12.0 -12.5 -13.0 -13.5 -14.0 2.2 1.8 -1.0 -2.0 -3.0 -4.0 2.2 1.8 3901072015 Rev. 010 power step 1 2.6 3.4 3.8 3.0 Vcc [V] Fig. 12: ...

Page 15

Rev. 010 power step 3 2.6 3.4 3.8 3.0 Vcc [V] Fig. 14: Output power in step 3 power step 4 2.6 3.4 ...

Page 16

Fig. 16: RF output signal with PLL reference spurs 3901072015 Rev. 010 Fig. 17: Single sideband phase noise Page TH72015 433MHz FSK/ASK Transmitter Data Sheet Apr/11 ...

Page 17

Test Circuit Fig. 18: Test circuit for FSK and ASK with 50 Ω matching network 6.1 Test circuit component list to Fig. 18 Value @ Part Size 315 MHz CM1 0805 5.6 pF CM2 0805 10 pF CM3 0805 ...

Page 18

Package Description The device is RoHS compliant all Dimensions min 2.85 2.85 max 3.15 3.15 all Dimensions in inch min 0.112 0.112 0.0878 0.051 0.0315 max 0.124 0.124 0.0976 ...

Page 19

Reliability Information This Melexis device is classified and qualified regarding soldering technology, solderability and moisture sensitivity level, as defined in this specification, according to following test methods: • IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification For Nonhermetic Solid State Surface Mount ...

Page 20

Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied description regarding the information set forth herein or regarding the ...

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