TH72032KDC Melexis Inc, TH72032KDC Datasheet
TH72032KDC
Specifications of TH72032KDC
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TH72032KDC Summary of contents
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Features Fully integrated PLL-stabilized VCO Frequency range from 850 MHz to 930 MHz Single-ended RF output ASK achieved by on/off keying of internal power amplifier kbit/s Wide power supply range from 1. 5.5 V Very ...
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Document Content 1 Theory of Operation ...................................................................................................3 1.1 General ............................................................................................................................. 3 1.2 Block Diagram .................................................................................................................. 3 2 Functional Description ..............................................................................................4 2.1 Crystal Oscillator .............................................................................................................. 4 2.2 ASK Modulation ................................................................................................................ 4 2.3 Crystal Pulling................................................................................................................... 4 2.4 Output Power Selection .................................................................................................... 5 ...
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Theory of Operation 1.1 General As depicted in Fig.1, the TH72032 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 ...
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Functional Description 2.1 Crystal Oscillator A Colpitts crystal oscillator with integrated functional capacitors is used as the reference oscillator for the PLL synthesizer. The equivalent input capacitance CRO offered by the crystal oscillator input pin ROI is about 18pF. ...
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Output Power Selection The transmitter is provided with an output power selection feature. There are four predefined output power steps and one off-step accessible via the power selection pin PSEL. A digital power step adjustment was chosen because of ...
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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 ...
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Pin Definition and Description Pin No. Name I/O Type 1 ASKDTA input ROI analog I/O 4 ENTX input 5 PSEL analog I/O 6 VCC supply 7 OUT output 8 VEE ground 3901072032 Rev. 009 Functional ...
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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 ...
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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 ...
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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 ...
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Typical Operating Characteristics 5.1 DC Characteristics I SBY 5µA 4µA 3µA 2µA 1µA 200nA 150nA 100nA 50nA 0 2.0 2.5 4.9 4.5 4.1 3.7 3.3 2.9 2.2 2.6 1.8 3901072032 Rev. 009 Standby current 3.0 3.5 4.0 Vcc [V] ...
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Rev. 009 power step 1 3.4 3.0 3.8 4.2 Vcc [V] Fig. 7: Supply current in power step ...
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Rev. 009 power step 3 3.4 3.0 3.8 4.2 Vcc [V] Fig. 9: Supply current in power step 3 power ...
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AC Characteristics • Data according to test circuit in Fig. 17 (868.3MHz) -10.5 -11.0 -11.5 -12.0 -12.5 -13.0 2.2 2.6 1.8 -2.0 -3.0 -4.0 -5.0 2.2 2.6 1.8 3901072032 Rev. 009 power step 1 3.4 3.8 4.2 3.0 Vcc ...
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Rev. 009 power step 3 3.0 3.4 3.8 4.2 Vcc Vcc [V] [V] Fig. 13: Output power in step 3 power step ...
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Fig.15: 3901072032 Rev. 009 RF output signal with PLL reference spurs Fig.16: Single sideband phase noise Page TH72032 868/915MHz ASK Transmitter Data Sheet March/08 ...
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Test Circuit Fig. 17: Test circuit for ASK with 50 Ω matching network 6.1 Test circuit component list to Fig. 17 Part Size Value @ 868.3 MHz CM1 0805 1.8 pF CM2 0805 5.6 pF CM3 0805 68 pF ...
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Package Description The device TH72032 is RoHS compliant .10 (.004) all Dimension in mm, coplanarity < 0.1mm min 4.80 3.81 5.80 max 4.98 3.99 6.20 all Dimension in inch, coplanarity < 0.004” ...
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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 ...
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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 ...