Product Brief TDA525x Series ASK/FSK Transceiver Family Wireless Control – The TDA525x series is a family of low power single chip FSK/ASK transceivers for half duplex low data rate communication in the 315 MHz, 434 MHz, 868 MHz and 915 MHz bands. The IC offers a very high level of integration and needs only a few external components. It contains a highly efficient power amplifier, a low noise amplifier (LNA) with AGC, a double balanced mixer, a complex direct conversion stage, I/Q limiters with RSSI generation, an FSK demodulator, a fully integrated VCO and PLL synthesizer, a tuneable crystal oscillator, an onboard data filter, a data comparator (slicer), positive and negative peak detectors, a data rate detection circuit and a 2/3- wire bus interface. Additionally, there is a power down feature to save battery power. Applications ■ Low bitrate communication systems ■ Remote Keyless Entry (RKE) systems ■ Remote control systems ■ Alarm systems ■ Telemetry systems ■ Home automation systems Ordering Information Type Ordering Code Package TDA5250 SP000012956 PG-TSSOP-38 TDA5251 SP000014554 PG-TSSOP-38 TDA5252 SP000057332 PG-TSSOP-38 TDA5255 SP000014555 PG-TSSOP-38 Evaluation Kits Type Description Package TDA5250-TDA5250 ASK/FSK 868 MHz Q671000-H2058 TDA5251-TDA5251 ASK/FSK 315 MHz Q67244-H112 TDA5252-TDA5252 ASK/FSK 915 MHz SP000086721 TDA5255-TDA5255 ASK/FSK 434 MHz Q67244-H61 www.infineon.com/wireless Wireless Control Features ■ Frequency ranges 315 MHz, 434 MHz, 868 MHz and 915 MHz ■ FSK and ASK operation ■ Fully integrated VCO and PLL synthesizer and loop filter on-chip with on chip crystal oscillator tuning 2 ■ I C µController Interface ■ On-chip low pass channel select filter and data filter with tunable bandwidth ■ Data slicer with self-adjusting threshold and 2 peak detectors ■ FSK sensitivity < -109 dBm, ASK sensitivity < -109 dBm ■ Transmit power up to +13 dBm ■ Data rates up to 64 kbit/s Manchester Encoded ■ Self-polling logic with ultra fast data rate detection ■ Power down mode with very low supply current consumption ■ Low supply current ■ Supply voltage range 2.1 – 5.5 V ■ Temperature range -40°C … +85°C Product Brief fRF = Single Ended to Differential Conv. fIF = 289.433 MHz LNI 6 LNA Mixer LNI 7 Limiter Data Filter 100 kΩ Q Channel Filter FSK Limiter + - QUADRI Correlator Mixer 17 BUSMODE EN BUSCLK 16 24 2 26 Controller Interface Slicer 27 + Peak Det – Peak Det Tx/Rx ÷ 12/16 ANT fTx = 868.3 MHz fRx = 1157.73 MHz 9 GNDPA PDP 12 PDN Loop Filter VCC 6-bit SAR-ADC Tx/Rx VCO 13 100 kΩ ASK Data ÷2 ASK/FSK 100 kΩ 0˚ 90˚ PA Rx/Tx 4 ASK RSSI PA 10 PWD/DD 5 Wakeup Logic ASK/FSK f = 289.433 MHz ÷4 Data (Rx/Tx) CLKDIV 28 Channel Filter LP Filter High/Low Gain BUSDATA CQ2 CI2x CI2 SLC 14 38 37 36 35 34 33 32 31 I Mixer CQ1x VDD (LNAPA) (Analog) (Digital) 11 1 15 CQ1 VCC CI1x 868.3 MHz VCC1 CI1 ANT CQ2x Block Diagram TDA5250 25 Bandgap Reference ASK/FSK 29 Reset RSSI CLK Phase Det. Charge P. Crystal Osc, FSKMod, Finetuning 3 19 XOUT 21 XIN 20 XSWF 22 XSWA FSK Data 23 XGND LF 8 (LNA/PA) GND1 30 18 (Analog) (Digital) GND VSS fQ = 18.0896 MHz Type TDA5250 TDA5251 TDA5252 TDA5255 Frequency Range 868 – 870 MHz 312 – 325 MHz 910 – 920 MHz 433 – 435 MHz Supply Voltage 2.1 – 5.5 V 2.1 – 5.5 V 2.1 – 5.5 V 2.1 – 5.5 V Supply Current typ. @ 3 V 8.6 mA (ASK) 9.0 mA (FSK) 8.8 mA (ASK) 9.3 mA (FSK) 8.6 mA (ASK) 9.0 mA (FSK) 8.6 mA (ASK) 9.0 mA (FSK) Sensitivity @ 4 kbit/s Manchester -109 dBm (ASK/FSK) -109 dBm (ASK/FSK) -109 dBm (ASK/FSK) -109 dBm (ASK/FSK) Rx Tx Supply Current typ. @ 3 V 11.9 mA 14.1 mA 12.5 mA 13.3 mA RF Transmit Power typ. 9 dBm 9 dBm 9 dBm 9 dBm Package PG-TSSOP-38 PG-TSSOP-38 PG-TSSOP-38 PG-TSSOP-38 Temperature Range -40°C … +85°C -40°C … +85°C -40°C … +85°C -40°C … +85°C How to reach us: http://www.infineon.com Published by Infineon Technologies AG 81726 Munich, Germany © Infineon Technologies AG 2006. All Rights Reserved. Legal Disclaimer The information given in this Product Brief shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Published by Infineon Technologies AG Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in lifesupport devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. Ordering No. B138-H8371-G2-X-7600 Printed in Germany PS 0107 nb