xe1202 ETC-unknow, xe1202 Datasheet

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... XE1202 433MHz / 868MHz / 915MHz Low-power, integrated UHF transceiver GENERAL DESCRIPTION The XE1202 is a single chip transceiver operating in the 433, 868 and 915MHz license free ISM (Industry Scientific and Medical) frequency bands. Its highly integrated architecture allows for minimum external components while maintaining design flexibility. All ...

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... Pattern Recognition Interface ...................................................................................................................... 21 5.7 Clock Output Interface ................................................................................................................................. 22 5.8 Default settings at power-up........................................................................................................................ 22 6 Application Information ................................................................................................................................ 23 6.1 Matching network of the receiver................................................................................................................. 23 6.2 Matching network of the transmitter ............................................................................................................ 23 6.3 VCO tank ..................................................................................................................................................... 24 6.4 Loop filter of the frequency synthesizer....................................................................................................... 24 6.5 Reference crystal for the frequency synthesizer ......................................................................................... 25 6.6 Decoupling capacitances............................................................................................................................. 25 7 Packaging information.................................................................................................................................. 26 2 Data Sheet XE1202 D0211-105 ...

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... The XE1202 single-chip solution is an integrated circuit intended for use as a low cost FSK transceiver to establish a frequency-agile, half-duplex, bi-directional RF link, with non-return to zero data coding. The device is available in an LQFP44 package and is designed to provide a fully functional multi-channel FSK transceiver intended for applications in the 433- and 868MHz European band and the North American 902-928MHz ISM band ...

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... Configuration Register Serial Output Configuration Register Serial Input Configuration Register Serial Clock Output clock at reference frequency divided Digital Ground Recovered Received Data Clock Received Data Transmit Data Output of the pattern recognition block Transmit/Receive/Stand-by/Sleep Mode Select Data Sheet XE1202 D0211-105 ...

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... Min - Quartz oscillator (39 MHz) - running - RFOP = 5 dBm - RFOP = 15 dBm - 3.2.2.1 A-mode - 3.2.2.2 B-mode Programmable - - - - - -13 funw = kHz and kHz LO A-mode -43 B-mode -28 Data Sheet XE1202 Max. Unit 3.9 V 125 °C Max. Unit 3 ° Typ Max Unit 0.2 1 µA 0. -113 ...

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... From quartz oscillator - running From frequency - synthesizer running RTParam_WBB=0 Between 2 channels at 1 MHz from each other From whole receiver - running in mode 100 - From receiver running RTParam_Fsel = 1 - RTParam_Fsel = Data Sheet XE1202 Typ Max Unit - -20 dBm 10 - kHz 20 - kHz 40 - kHz 200 - kHz 48 - dBc 4 ...

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... The circuit operates in 3 frequency ranges (433MHz, 868MHz, 915MHz) and uses 2-level FSK modulation typical application, the XE1202 is programmed by a microcontroller through the 3-wire serial bus SI, SO, SCK to write to and read from the configuration registers. ...

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... DATAIN. TS_RS is the wake-up time required after the function has been activated to get a valid result (assuming the reference Xtal oscillator is exactly ” (see the Configuration register section below). Description V VTHR1 RFFIL VTHR1 < V VTHR2 RFFIL VTHR2 < V VTHR3 RFFIL VTHR3 < V RFFIL Table 1 RSSI status description Data Sheet XE1202 D0211-105 ...

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... VAL3 XX XX VAL2 VAL2 TS_RS TS_RS f + SignalBW < Baseband_filterBW offset is the carrier frequency of the received signal. RF Meaning ERR - ( > ERR ( < ERR Table 2 FEI status description Data Sheet XE1202 VAL4 VAL4 XX XX VAL4 VAL4 is LO D0211-105 ...

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... DataOut_FEI. The maximum delay between the rising edge of DATAIN and the first clock on the internal FEI counter is 1/(16*BR), where BR is the bit rate 2.4 kHz. ERR XX XX VAL1 VAL1 VAL2 VAL2 VAL3 VAL3 VAL4 VAL4 XX XX VAL2 VAL2 TS_FE TS_FE Data Sheet XE1202 XX XX VAL4 VAL4 D0211-105 ...

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... This is illustrated on the next page where DATAIN is the input bit stream to be transmitted. 11 BIT B0 BIT B0 BIT B0+1 BIT B0+1 BIT B0+2 BIT B0 TS_FE TS_FE RTParam_Tpow Output power 0 0 RFOP10 0 1 RFOP1 1 0 RFOP20 1 1 RFOP2 Data Sheet XE1202 BIT B0+3 BIT B0+3 BIT B0+4 BIT B0 D0211-105 ...

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... Configuration register section below), is embedded in XE1202 and provides the CLKOUT clock signal for an MCU or an external circuitry. The input frequency is the 39.0 MHz reference frequency, so the possible clocks available on CLKOUT are 1.22, 2.44, 4.87, or 9.75 MHz. When the XE1202 is in Sleep Mode (MODE[2:0] = 000), this clock is stopped. ...

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... Interface definition, Principles of operation 5.1 Serial Control Interface A 3-wire bi-directional bus (SCK, SI, SO) is used to program the XE1202 and read data from it. SCK and SI are input signals, for example generated by a microcontroller output signal controlled by the XE1202. In write mode, at the falling edge of the SCK signal, the logic data on the SI line is written into an internal shift register. In read mode, at the rising edge of the SCK signal, the data on the SO line become valid and should be sampled at the next falling edge of SCK ...

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... SO is set to “0”. 5.2 Configuration and Status registers XE1202 has a series of configuration registers programmable through the serial control interface described above. Their name, size, address and description are listed in the table below. The size of these registers bytes. Their byte address is 5 bit address, A[4:0]. In addition, there is one register, DataOut, from which users can read various transceiver status information ...

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... MHz 1 0 -> 868 – 870 MHz 1 1 -> 902 – 928 MHz 00010 Frequency deviation -> 5 kHz -> 10 kHz -> 20 kHz -> 40 kHz -> 100 kHz Data Sheet XE1202 Description Description D0211-105 ...

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... RSSI output: 00101 0 0 -> lowest level 0 1 -> -> -> highest level FEI output: 00101 Output of the up/down counter in 2’s-complement representation MSB = bit 7 Data Sheet XE1202 Description = middle of the range LO = higher than the LO = lower than the LO nd level rd level ...

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... Regulation of the bandwidth of the 5 00111 base-band filter on/off: 0 -> -> off Periodicity of regulation of the 4 00111 bandwidth of the base-band filter: 0 -> only at start-up of the receiver 1 -> each 1 minute as long as the receiver is on Data Sheet XE1202 D0211-105 ...

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... Byte Address Byte Address 01001 01010 Bit 0 Bit 7 Bit 0 10101010 10010011 10101010 10010011 demodulator Data Sheet XE1202 nd byte is stored at Byte Address 01011 Bit 7 Bit 0 10101010 10101010 last bit received D0211-105 ...

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... Operating Modes The XE1202 has 4 main operating modes as set by the MODE[2:0] inputs and illustrated in table below. To switch between modes, the new value of the inputs MODE[2:0] should be modified when the EN signal is low. The actual change will be applied to the transceiver upon the rising edge of the EN signal. ...

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... RTParam_WBB =0 14.0 mA 11.5 mA Mode =011 Mode = 100 TS_FS TS_BB2 Transmission Mode =111 - Power Amplifier - Frequency synthesizer - Ref Xtal oscillator running TS_TR Data Sheet XE1202 Figure 7 below Received data valid Mode=001 - Ref Xtal oscillator running t t Figure 9 below Mode=001 - Ref Xtal oscillator running ...

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... When in transmit mode (MODE[2:0] = 111), the DATAIN signal is used as input for the on-chip modulator. DATAIN is not sampled, so the bit duration should match the bit rate setting of the receiver. Whenever XE1202 are used on both sides of the communication link, the bit rate should be one of those defined in the specifications table (BR). In this case the bit rate error should be less than 5% compared to the specified value ...

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... Clock Output Interface CLKOUT is a clock signal at 1.22, 2.44, 4.87, or 9.75 MHz, depending on programming. When the XE1202 is in Sleep Mode (MODE[2:0] = 000) or when “RTParam_Clkout” is low, this clock is stopped. 5.8 Default settings at power-up Upon power-up all , RTParam, FSParam, ADParam and Pattern registers are set to 00hex . ...

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... The schematic of the matching network at the output of the transmitter is given below. OUTPUT 23 CR1 RFA LR1 E CR3 RFB CR2 Typ. value Min. Q-factor @ selected frequency range 200 200 30 VDD CR1 LR1 LR2 CR2 Data Sheet XE1202 AGLE ASI C XE1202 Tolerance XE1202 RFOUT D0211-105 ...

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... Min. Q-factor @ selected frequency range 200 200 30 Typ. value Min. Q-factor @ selected frequency range 200 30 LFB RL1 CL2 XE1202 EAGLE ASIC CL1 VSS Typ. value Min. Q-factor @ selected frequency range 200 200 - Data Sheet XE1202 Tolerance Tolerance Tolerance D0211-105 ...

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... T), and/or fs( t)), BWssb is the single side-band bandwidth of the signal, and BWfilter is the single side-band bandwidth of the base-band filter. XE1202 can be used with reference crystal operating on its 3 a) the oscillator start-up time is higher than in fundamental mode; and b) an extra 1.5k to 16k ohm external resistor has to be placed in parallel to the crystal. In this case, the crystal should have Cload = 8 to 10pF, Rm < ...

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... Packaging information XE1202 comes in 44-lead LQFP package MODE(1) MODE(1) MODE(0) MODE( VSSF VSSF VSSP VSSP VSSP VSSP RFOUT RFOUT VDDP VDDP TVCO TVCO ¤ XEMICS 2002 All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice ...