Move from XE1201 Advanced XE1201A Author Gael Coron further infor

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Move from XE1201 Advanced XE1201A Author Gael Coron further infor

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AN1201.05 Application Note
Move from XE1201 Advanced XE1201A
Author Gael Coron further information, please contact
XEMICS
mail: xemics@xemics.com Web: www.xemics.com
INTRODUCTION.2 PERFORMANCE EVALUATION DIRECT REPLACEMENT BOARD MODIFICATION XM1201 VERSUS XM1201A.3 MOVE XE1201A.3
EXHIBIT XM1201A BILL MATERIAL.4 EXHIBIT XM1201A SCHEMATIC Figure Spectrum transmission second waveform (figure2) shows spectrum FSK. pseudo-random stream applied transceiver. frequency deviation 125kHz (marker=2fdev=250kHz). transmit power maximum (C13=1 C12=12).
Introduction
single chip transceiver XE1201A specially designed low-power lowvoltage wireless data link applications. With integrated Power Amplifier allowing output power +5dBm (3.17mW), meets need both cost physically small half-duplex data transceiver. XE1201A compatible with XE1201. changes specifications receiver mode. Nevertheless, some modifications transmitter chain need implemented order obtain maximum chip performance.
Performance Evaluation
Evaluation used measure compare performance XE1201A with XE1201. Direct Replacement first measure implementing directly replace XE1201 with reference board. Table shows result measures with XE1201A comparison with XE1201.
XE1201A XE1201 P(dBm) I(mA) P(dBm) I(mA) 10.5 +2.5 12.5 Table XE1201A XE1201
Figure Spectrum Board Modification Evaluation board modified optimize output power performance. Table shows modification table result this modification. more information about XE1201A click here download XE1201A datasheet from XEMICS' site:
XE1201 1.5pf XE1201A 3.3pF
Table Hardware modification XE1201A XE1201
XE1201A P(dBm) I(mA) +2.5 13.5 XE1201 P(dBm) I(mA)
Spectrum waveform spectrum analyzer connected output RFout allows visualization shape output spectrum measures spurious level. Figure below shows spectrum during transmission "0".
Table XE1201A XE1201
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Spectrum waveform Figure shows output (Rfout). output power measured +5dBm.
Move XE1201A
XE1201 replaced XE1201A which compatible. described above, difference internal power amplifier, which been modified obtain +5dBm. move from XE1201 XE1201A different solution implemented: Direct replacement Software modification Hardware modification.
Figure Spectrum transmission with board modification.
XM1201 versus XM1201A
obtain best performance, modifications need implemented XEMICS module. addition, increasing output power, external power amplifier switch also modified. Table shows module modification from XM1201 XM1201A.
XM1201 2.2pF 2.7pF 2.7pF 2.7pF XM1201A 1.5pF 3.3pF 1.5pF 2.2pF
Direct replacement: main feature final application output power current consumption, XE1201 directly replaced XE1201A. output power will optimum current consumption will increase. this case modification required. Software modification software modification done main feature final application output power value current consumption. example, with XE1201 maximum output power available 5dBm. same value obtained with XE1201A simple software modification. bits need respectively instead With this modification, output power XE1201A -5dBm with current consumption 8mA, which gives same result XE1201. Hardware modification final application requires optimized solution best performance data range (output power sensitivity), board needs modified following table software (microcontroller source code) does need modified, same configuration (C13=1 C12=1) will increase output power from -5dBm +5dBm with modification sensitivity.
Table XM1201 XM1201A
XM1201A Output Power Without loop antenna, output power measured +8.5dBm. gain external power amplifier reduces order optimize current consumption sensitivity. Therefore, gain 2.5dB.
XM1201A Sensitivity sensitivity module (XM1201A) measured without antenna, -105dBm.
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Exhibit XM1201A Bill Material
Denomination SAW1 C14, C11, C13, C8,C18, Cs_ant1 Cs_ant2 Cp_ant1 Cp_ant2 L1,L2,L3,L4,L5,L7 L6,L8,L9 Components Transceiver circuit XTAL Quartz Transistor Transistor Resonator Decoupling capacitor Capacitor 0805 Capacitor 0805 Capacitor 0805 Capacitor 0805 Capacitor 0805 Capacitor 0805 Capacitor 0805 Trim-Capacitor Capacitor 0805 Capacitor 0805 Capacitor 0805 Capacitor 0805 Capacitor 0805 Self Self Self Pola resistor Pola resistor Reference XE1201 S0409745 BFQ67 BC808 RO-2101A Manufacturer XEMICS 4.00MHz Philips Philips 433.92MHz 10uF 100nF 10nF 470pF 0.68pF 1.5pF 2.2pF 3.3pF 2.7pF 2.7pF 22pF 22pF 10pF 12nH 18nH 56nH 110k Philips Philips Philips Philips Philips Philips Philips Philips Philips Philips Philips Philips Philips Coilcraft Coilcraft Coilcraft Value Form TQFP32 Sot23 Sot23 SM-2
+/-0.25pF, +/-0.25pF, +/-0.25pF, +/-0.25pF, +/-0.25pF, +/-0.25pF, +/-0.25pF, TZC03Z060A110 +/-0.25pF, +/-0.25pF, +/-0.25pF, +/-0.25pF, +/-0.25pF, 0805 CS-120-X 0805 CS-180-X 0805 CS-560-X
SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD0805 SMD1206 SMD1206
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Exhibit XM1201A Schematic
XEMICS, 2001 rights reserved. Reproduction whole part this document prohibited without prior written consent copyright owner. information presented this document does form part quotation contract, believed accurate reliable changed without notice. publisher consequence will accept liability. Publication thereof does convey imply license under patent other industrial intellectual property rights.
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Move from XE1201 Advanced XE1201A Author Gael Coron further infor

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