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Intel PXA250 and PXA210 Applications Processors

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Power <strong>and</strong> Clocking<br />

Table 8-3. Power Consumption Specifications (Sheet 2 of 2)<br />

Symbol Description Min 1 Typical 1 Max 1<br />

P VCCN_HB<br />

@2.5V<br />

P VCCN_HB<br />

@3.3V<br />

Power from VCCN Supply, High Range (<strong>PXA250</strong> applications<br />

processor)<br />

Power from VCCN Supply, High Range (<strong>PXA250</strong> applications<br />

processor)<br />

— 115 mW 250 mW<br />

— 160 mW 440 mW<br />

PT_IDLE_H Total Power, IDLE Mode, High Range — 135mW —<br />

Peak Voltage Range (<strong>PXA250</strong> applications processor only)<br />

P T_P Total Power, Peak Range — 635 mW 950 mW<br />

P VCC_P Power from VCC Supply, Peak Range — 470 mW 360 mW<br />

P VCCN_P<br />

@2.5V<br />

P VCCN_P<br />

@3.3V<br />

Power from VCCN Supply, Peak Range — 115 mW 255 mW<br />

Power from VCCN Supply, Peak Range — 160 mW 440 mW<br />

PT_IDLE_H Total Power, IDLE Mode, High Range — 185mW —<br />

NOTE:<br />

1. These numbers are pre-silicon estimates, <strong>and</strong> will be replaced with the correct values when characterization is complete.<br />

8.4 Oscillator Electrical Specifications<br />

The applications processor contains two oscillators – 32.768 kHz <strong>and</strong> 3.6864 MHz; each chosen<br />

for a specific crystal. When choosing a crystal, match the crystal parameters as closely as possible.<br />

8.4.1 32.768 kHz Oscillator Specifications<br />

The 32.768 kHz Oscillator is connected between the TXTAL (amplifier input) <strong>and</strong> TEXTAL<br />

(amplified output). The 32.768 kHz specifications are shown in Table 8-4.<br />

Table 8-4. 32.768 kHz Oscillator Specifications (Sheet 1 of 2)<br />

Symbol Description Min Typical Max<br />

Crystal Specifications - Typical is FOX NC38<br />

F XT Crystal Frequency, TXTAL/TEXTAL — 32.768 kHz —<br />

L MT Motional Inductance, TXTAL/TEXTAL — 6827.81 H —<br />

C MT Motional Capacitance, TXTAL/TEXTAL — 3.455 fF —<br />

R MT Motional Resistance, TXTAL/TEXTAL 6kΩ 16 kΩ 35 kΩ<br />

C OT Shunt Capacitance TXTAL to TEXTAL — 1.6 pF —<br />

C LT Load Capacitance TXTAL/TEXTAL — 12.5 pF —<br />

Amplifier Specifications<br />

V IH_X Input High Voltage, TXTAL 0.8 V*VCC — VCC<br />

V IL_X Input Low Voltage, TXTAL VSS — 0.2 V*VCC<br />

I IN_XT Input Leakage, TXTAL — — 1 µA<br />

C IN_XT Input Capacitance, TXTAL/TEXTAL — 18 pF 25 pF<br />

8-4 <strong>PXA250</strong> <strong>and</strong> <strong>PXA210</strong> <strong>Applications</strong> <strong>Processors</strong> Design Guide

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