MICRF220AYQS Micrel Inc, MICRF220AYQS Datasheet
MICRF220AYQS
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MICRF220AYQS Summary of contents
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... Data output squelch until valid bits detected • 16-pin QSOP package (4.9mm x 6.0mm) • −40˚C to +105˚C temperature range • 3kV HBM ESD Rating Ordering Information Part Number MICRF220AYQS 433.92MHz, 1kbps Operation MICRF220 Temperature Range Package –40°C to +105°C 16-Pin QSOP http://www ...
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... Received Signal Strength Indicator. The voltage on this pin is an inversed amplified version of the voltage on 14 RSSI CAGC. Output is from a switched capacitor integrating op amp with 250Ω typical output impedance Connect. Leave this pin floating. Reference resonator connection to the Pierce oscillator. Internal capacitance of 7pF to GND during normal 16 RO2 operation. August 2010 MICRF220AYQS 2 MICRF220 M9999-082610-A ...
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Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ).................................................. +5V DD ANT, SQ, SEL0, SEL1, SHDN DC Voltage. .................... −0. Junction Temperature ...........................................+150ºC Lead Temperature (soldering, 10sec.)..................+300°C Storage Temperature .............................−65ºC to +150°C Maximum Receiver Input Power ......................... +10dBm ...
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Micrel, Inc. Electrical Characteristics (Continued) Parameter Condition Demodulator f CTH Source Impedance, REF Note 6 f REF CTH Leakage Current +25ºC A CTH Hold Mode T = +105ºC A Digital / Control Functions As output source @ ...
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Micrel, Inc. Typical Characteristics V = 3.3V +25ºC, BER measured with PN9 sequence, unless otherwise noted Current vs. Receiver Frequency 6.5 6.0 5.5 5.0 4.5 4.0 3.5 300 325 350 375 400 425 450 Receiver Frequency ...
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Micrel, Inc. Typical Characteristics (Continued 3.3V +25ºC, BER measured with PN9 sequence, unless otherwise noted Sensitivity at 1% BER V = 3.3V 3.3V SEL1 SEL0 -98 -100 -102 -104 315MHz -106 433.92MHz ...
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Micrel, Inc. Functional Diagram August 2010 Figure 1. Simplified Block Diagram 7 MICRF220 M9999-082610-A ...
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Micrel, Inc. Functional Description The simplified block diagram (Figure 1) illustrates the basic structure of the MICRF220 receiver made up of four sub-blocks: • UHF Down-Converter • ASK/OOK Demodulator • Reference and Control logic • Squelch Control Outside ...
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Micrel, Inc. Detector and Programmable Low-Pass Filter The demodulation starts with the detector removing the carrier from the IF signal. Post detection, the signal becomes baseband information. The low-pass filter further enhances the baseband signal. There are four selectable low-pass ...
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Micrel, Inc. The value of CAGC impacts the time to good data (TTGD), which is defined as the time when signal is first applied, to when the pulse width within 10% of the steady state value. The ...
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Micrel, Inc. RO2 C R RO1 C Figure 5. Reference Oscillator Circuit Reference oscillator crystal frequency can be calculated according to Equation 3. For example 13.52313MHz. Table 4 lists the values of reference REF frequencies at ...
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Micrel, Inc. When four or less out of eight pulses (at DO′signal labeled in Figure 1) are good, the DO output is squelched. If good pulse count increases to seven or more in any eight sequential pulses, squelch is disabled, ...
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Micrel, Inc. Application Information August 2010 Figure 8. MICRF220 EV Board Application Example 13 MICRF220 M9999-082610-A ...
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Micrel, Inc. Supply Voltage Ramping When supply voltage is initially applied, it should rise monotonically from 0V to 3.3V to ensure proper startup of the crystal oscillator and the PLL. It should not have multiple bounces across 2.6V, which is ...
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Micrel, Inc. August 2010 Figure 9. MICRF220 EV Board Assembly Figure 10. MICRF220 EV Board Top Layer Figure 11. MICRF220 EV Board Bottom Layer 15 MICRF220 M9999-082610-A ...
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... GRM1885C1H1R5CZ01 C10, C11 GRM1885C1H100JA01D J2 J3 571-41031480 JP1, JP2 CRCW04020000Z L2 LQG18HN39NJ00 L3 LQG18HN33NJ00 R3 CRCW0402100KFKEA R4 Y1 ABLS-13.52313MHz-10J4Y Y2 DSX321GK-13.52313MHz U1 MICRF220AYQS Notes: 1. Murata: www.murata.com. 2. Vishay: www.vishay.com. 3. Abracon: www.abracon.com. 4. KDS: www.kds.info/index_en.htm. 5. Micrel, Inc.: www.micrel.com. August 2010 Manufacturer Description (1) 1.2pF 100V, ±0.25pF, 0603 Murata (1) Murata 4.7μF 6.3V, 0805 ...
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... C7, C12, JP3 C9 GRM1885C1H1R2CZ01 C10, C11 GRM1885C1H100JA01D J2 J3 571-41031480 JP1, JP2 CRCW04020000Z L2, L3 LQG18HN68NJ00 R3 CRCW0402100KFKEA R4 Y1 ABLS-9.81713MHz-10J4Y Y2 DSX321GK-9.81713MHz U1 MICRF220AYQS Notes: 1. Murata: www.murata.com. 2. Mouser: www.mouser.com. 3. Vishay: www.vishay.com. 4. Abracon: www.abracon.com. 5. KDS: www.kds.info/index_en.htm. 6. Micrel, Inc.: www.micrel.com. August 2010 Manufacturer Description (1) 1.5pF 100V, ±0.25pF, 0603 Murata ...
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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 The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, ...