TH72016KLD

Manufacturer Part NumberTH72016KLD
DescriptionTRANSMITTER, FSK/ASK, 433MHZ, 10QFN
ManufacturerMelexis Inc
TH72016KLD datasheet
 

Specifications of TH72016KLD

Transmitting Current14.5mAData Rate40Kbps
Frequency Range380MHz To 450MHzModulation TypeASK, FSK
Rf Ic Case StyleQFNNo. Of Pins10
Supply Voltage Range1.95V To 5.5VOperatingRoHS Compliant
Output Power10dBmRohs CompliantYes
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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 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
Ordering Information
Part Number
Temperature Code
TH72016
K (-40 °C to 125 °C)
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 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 other countries with similar standards, e.g. FCC part 15.231.
The transmitter's carrier frequency f
grated PLL synthesizer ensures that carrier frequencies, ranging from 380 MHz to 450 MHz, can be
achieved. This is done by using a crystal with a reference frequency according to: f
the PLL feedback divider ratio.
A clock signal with selectable frequency is provided. It can be used to drive a microcontroller.
39010 72016
Rev. 007
Microcontroller clock output
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
3.8 mA to 11.0 mA
Conforms to EN 300 220 and similar standards
10-pin Quad Flat No-Lead Package (QFN)
Package Code
LD (10L QFN 3x3 Dual)
FSKDTA
FSKSW
ROI
EN
CKOUT
is determined by the frequency of the reference crystal f
c
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TH72016
433MHz
FSK/ASK Transmitter
Delivery Form
121 pc/tube
5000 pc/T&R
Pin Description
top
bottom
VCC
10
1
VEE
9
2
TH72016
OUT
8
3
CKDIV
7
4
PSEL
6
5
. The inte-
ref
= f
/N, where N = 32 is
ref
c
Data Sheet
March/08

TH72016KLD 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 ...

  • Page 3

    Theory of Operation 1.1 General As depicted in Fig.1, the TH72016 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 inter- nal loop filter determines ...

  • 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 TH72016 can be ASK-modulated by applying data directly at pin PSEL. This turns the PA on and off which leads to an ASK signal at the output. 2.5 Output Power Selection The transmitter is provided with ...

  • 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 EN is pulled-down internally. This guarantees that the whole circuit is shut down if this pin ...

  • Page 7

    Pin Definition and Description Pin No. Name I/O Type 1 FSKDTA input 2 FSKSW analog I/O 3 ROI analog I input 5 CKOUT output 6 PSEL analog I/O 7 CKDIV input 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

    Output Power Steps – FSK Mode Power step 0 RPS / kΩ < 3 4.7 Output Power Steps – ASK Mode typical values °C and VCC = 3 V; test circuit shown in Fig. 6 ...

  • Page 12

    Test Circuit Test circuit for FSK and ASK with 50 Ω matching network Fig. 6: 5.1 Test circuit component list to Fig. 6 Value @ Part Size 433.92 MHz CM1 0805 5.6pF CM2 0805 10 pF CM3 0805 82 ...

  • Page 13

    Package Description The device TH72016 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 0.055 ...

  • Page 14

    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: Reflow Soldering SMD’s (Surface Mount Devices) • IPC/JEDEC J-STD-020 “Moisture/Reflow Sensitivity Classification ...

  • Page 15

    Your Notes 39010 72016 Rev. 007 FSK/ASK Transmitter Page TH72016 433MHz Data Sheet March/08 ...

  • Page 16

    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 accompanied by all associated conditions, limitations and ...