MICRF112YMM Micrel Inc, MICRF112YMM Datasheet
MICRF112YMM
Specifications of MICRF112YMM
MICRF112YMM
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MICRF112YMM Summary of contents
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... Remote Control (STB, HVAC and Appliances) In terms of operating • Garage Door Opener Transmitters • Remote Sensor Data Links • Infrared Transmitter Replacement • Tire Pressure Monitor System (TPMS) One only needs a Ordering Information MICRF112YMM narrow-band, high receivers. The data rate is ...
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Micrel, Inc. Typical Application Note: Values in parenthesis are for 315MHz March 2008 Figure 1. MICRF112 ASK Key Fob Design 2 MICRF112 M9999-031008 (408) 944-0800 ...
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Micrel, Inc. Pin Configuration Pin Description Pin Number Pin Name MSOP-10 1 ASK 2 XLIN 3 XTLOUT 4 VSS 5 XTAL_MOD 6 FSK VSSPA 9 PA_OUT 10 VDD March 2008 ASK 1 XTLIN 2 XTLOUT 3 VSS ...
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Micrel, Inc. Absolute Maximum Ratings Supply Voltage VDD ...................................................+5.0V Voltage on PAOUT......................................................+7.2V Voltage on I/O Pins ............................ VSS–0.3 to VDD+0.3 Storage Temperature Range ....................-65° 150°C Lead Temperature (soldering, 10 seconds) ............ + 300°C ESD Rating.................................................................Note 3 Electrical Characteristics ...
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Micrel, Inc. Electrical Characteristics (cont.) Parameter Condition High (V Digital Input (EN, ASK and FSK) Low (V Digital Input Leakage High (V Current Low (V (EN, ASK and FSK Pins) Under Voltage Lock Out (UVLO) Note 1. Exceeding the absolute ...
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Micrel, Inc. Test Circuit Note 1. Values without parenthesis are for 433.92 MHz and values in parenthesis are for 315MHz Note 100pF for external REF-OSC Note 3. For FSK R1 = 0Ω NP ...
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Micrel, Inc. Assembly Drawing MICRF112 50 Ohm Test Board Bottom Layer MICRF112 50 Ohm Test Board March 2008 Top Layer MICRF112 50 Ohm Test Board 7 MICRF112 M9999-031008 (408) 944-0800 ...
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Micrel, Inc. Typical Characteristics Using MICRF112, 50Ω test Board 315MHz OBW, ASK = 1kHz CW Max Power @ 3V, 315MHz, ASK = 1kHz, Note Spectrum 3 Fundamental at 315 MHz Note 1. 1.2dB cable loss. March 2008 ...
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Micrel, Inc. 315MHz, Zero Span , ASK = 1kHz 315MHz, Phase Noise, ASK = 1kHz, 100kHz Offset, –75.59dBc/Hz 315MHz, Phase Noise, ASK = CW, 100kHz Offset, –74.39dBc/Hz March 2008 315MHz, Zero Span, ASK = 50kHz 315MHz, Phase Noise, ASK = ...
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Micrel, Inc. 433.92MHz OBW, ASK = 1kHz 433.92MHz, CW Max Power @ 3V, ASK = 1kHz, Note Spectrum 3 Fundamental at 433.92 MHz Note 1. 1.3dB cable loss. March 2008 Harmonic; 10 433.92MHz OBW, ASK = 50kHz ...
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Micrel, Inc. 433.92MHz Zero Span, 1kHz 433.92MHz Phase Noise, ASK = CW, 100kHz Offset, –81.04dBc/Hz 433.92MHz Phase Noise, ASK = 1kHz, 100kHz Offset, –71.73dBc/Hz March 2008 433.92ASK Zero Span at 50kHz 433.92MHz Phase Noise, ASK = CW, 1MHz Offset, –78.76dBc/Hz ...
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Micrel, Inc. Functional Diagram Figure 3. Functional Block Diagram MICRF112 10 Pin ASK / FSK Version Functional Description Figure 3 shows a functional block diagram of the MICRF112 transmitter. The MICRF112 can be best described as a phase locked transmitter. ...
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Micrel, Inc. Crystal Oscillator for FSK Operation Figure 5 shows reference oscillator circuit configuration for FSK operation. To operate the MICRF112 in FSK mode, one additional capacitor is needed between XTALOUT pin and XTALMOD pin. Crystal parameters for FSK operation ...
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Micrel, Inc. Application Information Note: Values in parenthesis are for 315MHz The MICRF112 is well suited to drive a 50 ohms source, monopole or a loop antenna. Figure example of a loop antenna configuration. Figure 6 also ...
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Micrel, Inc. Output Matching Network Part of the function of the output network is to attenuate the second and third harmonics. When matching to a transmit frequency, care must be taken not only to optimize for maximum output power but ...
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Micrel, Inc. PCB Board Assembly Drawing MICRF112 Demo Board Bottom Layer MICRF112 Demo Board March 2008 Figure 7. Demo Board PCB 16 MICRF112 Top Layer MICRF112 Demo Board M9999-031008 (408) 944-0800 ...
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Micrel, Inc. Note: Configuration is for ASK operation. Values in parenthesis are for 315MHz March 2008 Figure 8. TX112-1 Demo Board Schematic 17 MICRF112 M9999-031008 (408) 944-0800 ...
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... CON3 680nH 0805 82nH 0603 ANTENNA 100kΩ 0603 0Ω 0603 MICRF112YMM10 13.560MHZ XTAL Table 2 18 MICRF112 Mfg P/N Manufacturer GRM21BR60J106KE01L muRata GRM1885C1H101JA01D muRata GRM1885C1H100JA01D muRata GRM1885C1H4R7JA01D muRata GRM188F51H104ZA01D muRata GRM1885C1H180JA01D muRata ...
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... CON3 470nH 0805 150nH 0603 ANTENNA 100kΩ 0603 0Ω 0603 MICRF112YMM10 9.84375MHZ XTAL Table JPR1 100kΩ 0Ω NP 0Ω 100kΩ NP Table 4: ASK and FSK Settings R3 0Ω NP Table 5: Enable Control (Shutdown) ...
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Micrel, Inc. Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. ...