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MC12179D Fiches technique(PDF) 2 Page - Motorola, Inc |
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MC12179D Fiches technique(HTML) 2 Page - Motorola, Inc |
2 / 11 page MC12179 2 MOTOROLA RF/IF DEVICE DATA ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5 V; VP = VCC to 5.5 V; TA = –40 to 85°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit Condition Supply Current for VCC ICC – 3.1 5.6 mA Note 1 Supply Current for VP IP – 0.4 1.3 mA Note 1 Operating Frequency fINmax fINmin FIN 2800 – – – – 500 MHz Note 2 Operating Frequency Crystal Mode External Oscillator OSCin FOSC 5 2 – – 11 11 MHz Note 3 Note 4 Input Sensitivity Fin VIN 200 – 1000 mVP–P Note 2 Input Sensitivity External Oscillator OSCin VOSC 500 – 2200 mVP–P Note 4 Output Source Current5 (PDout) IOH –2.8 –2.2 –1.6 mA VP = 4.5 V, VPDout = VP/2 Output Sink Current5 (PDout) IOL 1.6 2.2 2.8 mA VP = 4.5 V, VPDout = VP/2 Output Leakage Current (PDout) IOZ – 0.5 15 nA VP = 5.0 V, VPDout = VP/2 NOTES: 1. VCC and VP = 5.5 V; FIN = 2.56 GHz; FOSC = 10 MHz crystal; PDout open. 2. AC coupling, FIN measured with a 1000 pF capacitor. 3. Assumes C1 and C2 (Figure 1) limited to ≤30 pF each including stray and parasitic capacitances. 4. AC coupling to OSCin. 5. Refer to Figure 15 and Figure 16 for typical performance curves over temperature and power supply voltage. PIN FUNCTION DESCRIPTION Pin Symbol I/O Function 1 OSCin I Oscillator Input — An external parallel–resonant, fundamental crystal is connected between OSCin and OSCout to form an internal reference oscillator (crystal mode). External capacitors C1 and C2, as shown in Figure 1, are required to set the proper crystal load capacitance and oscillator frequency. For an external reference oscillator, an external signal is AC–coupled to the OSCin pin with a 1000 pF coupling capacitor, with no connection to OSCout. In either mode, a resistor with a nominal value of 50 k Ω MUST be placed across the OSCin and OSCout pins for proper operation. 2 VCC — Positive Power Supply. Bypass capacitors should be placed as close as possible to the pin and be connected directly to the ground plane. 3 Gnd — Ground. 4 Fin I Prescaler Input — The VCO signal is AC coupled into the Fin pin. 5 GndP — Ground — For charge pump circuitry. 6 PDout O Single ended phase/frequency detector output (charge pump output). Three–state current sink/source output for use as a loop error signal when combined with an external low pass filter. The phase/frequency detector is characterized by a linear transfer function. 7 VP — Positive power supply for charge pump. VP MUST be equal or greater than VCC. Bypass capacitors should be placed as close as possible to the pin and be connected directly to the ground plane. 8 OSCout O Oscillator output, for use with an external crystal as shown in Figure 1. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
Numéro de pièce similaire - MC12179D |
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Description similaire - MC12179D |
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