RFRXD0920-I/LQ Microchip Technology, RFRXD0920-I/LQ Datasheet
RFRXD0920-I/LQ
Specifications of RFRXD0920-I/LQ
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RFRXD0920-I/LQ Summary of contents
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... Bi-CMOS Technology: • Wide operating voltage range • Low current consumption in Active and Standby modes - rfRXD0420 - 8.2 mA (typical, LNA High Gain mode) - <100 nA standby - rfRXD0920 - 9.2 mA (typical, LNA High Gain mode) - <100 nA standby • Wide temperature range: - Industrial: -40°C to +85°C Preliminary 24 ...
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... The rfRXD0420 covers the receive frequency range of 300 MHz to 450 MHz and the rfRXD0920 covers 800 MHz to 930 MHz. The rfRXD0420 and rfRXD0920 share a common architec- ture. They can be configured for Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK modula- tion. The rfRXD0420/0920 are compatible with rfPIC™ ...
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... FIGURE 1-1: rfRXD0420/0920 BLOCK DIAGRAM OPA DEM OUT 2IF DD V FBC2 FBC1 2IF 1IF OUT V DD 1IF- 1IF 1IF IN LNA OUT GAIN LNA V SS 2003 Microchip Technology Inc. rfRXD0420/0920 V SS MIXER2 DEM OUT+ DEM OUT XTAL DD V ENRX LF Preliminary DS70090A-page 3 ...
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... Demodulator output (positive) O Analog Demodulator output (negative) I Analog Crystal oscillator input I CMOS Receiver enable input I Analog External loop filter connection. Common node of charge pump output and VCO tuning input. I Analog LNA input P Positive supply P Ground reference Preliminary Description 2003 Microchip Technology Inc. ...
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... Crystal oscillator • Phase-frequency detector and charge pump • Voltage Controlled Oscillator (VCO) • Fixed feedback divider: - rfRXD0420 = divide rfRXD0920 = divide by 32 2.2.1 CRYSTAL OSCILLATOR The internal crystal oscillator is a Colpitts type oscilla- tor. It provides the reference frequency to the PLL. A crystal is normally connected to the XTAL (Pin 26) and ground ...
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... Approximate LNA noise figures are listed in Table 2-3. TABLE 2-3: LNA NOISE FIGURES Device Noise Figure rfRXD0420 rfRXD0920 Note 1: Approximate value IN LNA (Pin 31) has an input impedance of approxi- mately 26 Ω single-ended. OUT LNA (Pin 3) has an open-collector output and is DD pulled via a tuned circuit. ...
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... Post detector filtering is easily implemented by connecting a capacitor to ground from the RSSI pin effectively creating an RC filter with the internal 36 kΩ resistor. 2003 Microchip Technology Inc. rfRXD0420/0920 For FSK and FM demodulation, the RSSI represents the received signal strength of the incoming RF signal. ...
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... The Op Amp pins are illustrated in Figures 2-12 and 2-13. FIGURE 2-12: BLOCK DIAGRAM OF OP AMP INPUT PINS µA 50 Ω 50 Ω OPA FIGURE 2-13: BLOCK DIAGRAM OF OP AMP OUTPUT PIN Ω OPA DS70090A-page 8 20 µ µA SS OPA+ 20 Preliminary 2003 Microchip Technology Inc. ...
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... These values are for design guidance only. Preliminary RECEIVE FREQUENCY VS. TRIM CAPACITANCE Trim Capacitor (pF) ) and intermediate rf TM and POPULAR RECEIVE FREQUENCIES Crystal Frequency rfRXD0420 (2) 20.35625 MHz (1) 26.45125 MHz rfRXD0920 (1) 26.8 MHz (1) 28.259375 MHz Value (see Figure 3-1) Fundamental 15- Ω Maximum DS70090A-page 9 ...
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... XTAL-HIGH 16 if rfRXD0420 _________ rfRXD0920 16 if rfRXD0420 _________ rfRXD0920 ) or low-side injection (f ) that corresponds to the LO frequency lo-HIGH lo-LOW Device LO Frequency Range 300 to 430 MHz 800 to 915 MHz (circle one) High-side Injection ) for the Injection mode chosen: ...
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... C1 Note: Refer to SAW filter manufacturer’s data sheet for pin outs and values for impedance matching components. 2003 Microchip Technology Inc. rfRXD0420/0920 The SAW filter has the added advantage of filtering wide-band noise and improving the signal-to-noise ratio (SNR) of the receiver. ...
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... Figure 3-8 shows component values C2 capacitors. 6.0 pF 6.0 pF 3.0 pF 3.0 pF Preliminary MIXER1 BIAS EXAMPLE CIRCUIT 470 Ω 470 Ω OUT (Pin 9) has an approximately IN (Pin 11) is approximately 2.2 kΩ and FBC2 (Pin 13). and connections for these 2003 Microchip Technology Inc. ...
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... FIGURE 3-8: IF FILTER, LIMITING AMPLIFIER AND DEMODULATOR BLOCK DIAGRAM IN DEM 2IF OUT 2003 Microchip Technology Inc. rfRXD0420/0920 Preliminary DS70090A-page 13 ...
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... IN pF 1000 C13 FBC1 IN DS70090A-page 14 OPA DD V MIXER2 DEM 2IF OUT V DD FBC2 2IF V SS OUT 1IF DD V 1IF- 1IF 1IF IN OUT LNA GAIN LNA SS V Preliminary V SS OUT+ DEM OUT- DEM SS V XTAL V DD ENRX LF 2003 Microchip Technology Inc. ...
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... Signal Decision OOK Signal Signal Period RSSI Signal 1τ to 2τ 2003 Microchip Technology Inc. rfRXD0420/0920 If the bit decision occurs near the end of the signal period, then the time constant should be set at less than or equal to the signal period. Figure 3-11 illustrates this method ...
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... R1 and C2 such that the reference voltage is in the middle of the RSSI signal. This reference voltage level provides the optimum data comparison of the incoming data signal. 3.2.2.2 STATIC REFERENCE VOLTAGE A static reference voltage can be derived by a voltage divider network. Preliminary 2003 Microchip Technology Inc. ...
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... FIGURE 3-13: FSK APPLICATION CIRCUIT pF 1000 C13 2003 Microchip Technology Inc. rfRXD0420/0920 OPA DD V MIXER2 IN DEM 2IF OUT V DD FBC2 FBC1 IN 2IF SS V OUT 1IF DD V 1IF- 1IF 1IF IN OUT LNA LNA GAIN SS V Preliminary SS V DEM OUT+ DEM OUT- ...
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... Q of the discriminator will be that the detector output will be smaller. FIGURE 3-15: CERAMIC DISCRIMINATOR OUT , Pin (Pin 16) input. Preliminary EXAMPLE CIRCUIT R1 4.7 kΩ 1.0 pF 3.3 µH C2 680 pF 16 require better frequency EXAMPLE CIRCUIT F1 CERAMIC DISCRIMINATOR C1 C3 1.0 pF 10- 680 2003 Microchip Technology Inc. ...
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... DEMout+ and DEMout- are high impedance outputs with only a 20 µA current capability. The capacitance on these pins limit the maximum data signal rate. The nominal output voltage of these pins is 1.23V. 2003 Microchip Technology Inc. rfRXD0420/0920 OUT + and Preliminary ...
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... FIGURE 3-16: FM APPLICATION CIRCUIT pF 1000 C13 DS70090A-page 20 OPA V DD MIXER2 DEM IN 2IF OUT V DD FBC2 FBC1 2IF 1IF OUT DD V 1IF- 1IF 1IF IN OUT LNA LNA GAIN V SS Preliminary V SS OUT+ DEM - OUT DEM V SS XTAL DD V ENRX LF 2003 Microchip Technology Inc. ...
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... FSK section above. 3.4.2 OPERATIONAL AMPLIFIER The internal operational amplifier is configured as an active low-pass filter. FM audio is typically de-emphasized recom- mended that de-emphasis circuitry be connected at the output of the operational amplifier rather than the output of the detector. 2003 Microchip Technology Inc. rfRXD0420/0920 Preliminary DS70090A-page 21 ...
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... This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. DS70090A-page 22 Preliminary 2003 Microchip Technology Inc. CC +0.3V ...
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... Note 1: Dependant on ASK detector time constant bandwidth = 40 kHz, ∆f = +/- 15 kHz, BER < bandwidth = 150 kHz, ∆f = +/- 50 kHz, BER < bandwidth = 40 kHz, BER < bandwidth = 150 kHz, BER < 2003 Microchip Technology Inc. rfRXD0420/0920 Standard Operating Conditions (unless otherwise stated) Operating Temperature -40°C ≤ T † ...
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... DC Characteristics: rfRXD0920 (Industrial) DC CHARACTERISTICS Param Sym Characteristic No Supply Voltage STBY I Standby Current CC I Supply Current V OPA Op Amp input voltage offset OPA I Op Amp input current offset BIAS I Op Amp input bias current RSSI V RSSI voltage * These parameters are characterized but not tested. ...
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... Standard PICmicro device marking consists of Microchip part number, year code, week code, and traceability code. For PICmicro device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. 2003 Microchip Technology Inc. rfRXD0420/0920 Example rfRXD0420 ...
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... Package Details The following section gives the technical details of the package. 32-Lead Plastic Low Profile Quad Flat Package (LQ 1.4 mm Body Not available at this time. DS70090A-page 26 Preliminary 2003 Microchip Technology Inc. ...
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... Links to other useful web sites related to Microchip Products • Conferences for products, Development Systems, technical information and more • Listing of seminars and events 2003 Microchip Technology Inc. rfRXD0420/0920 SYSTEMS INFORMATION AND UPGRADE HOT LINE The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products ...
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... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS70090A-page 28 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS70090A Preliminary 2003 Microchip Technology Inc. ...
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... Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products. 2003 Microchip Technology Inc. rfRXD0420/0920 XXX Examples: a) Pattern rfRXD0420-I/LQ = Industrial temp, LQFP package b) rfRXD0920-I/LQ = Industrial temp, LQFP package Preliminary DS70090A-page29 ...
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... NOTES: DS70090A-page30 Preliminary 2003 Microchip Technology Inc. ...
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... ICSP, ICEPIC, microPort, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICC, PICkit, PICDEM, PICDEM.net, PowerCal, PowerInfo, PowerTool, rfPIC, Select Mode, SmartSensor, SmartShunt, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. ...
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... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...