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UAA2080T Datasheet(PDF) 6 Page - NXP Semiconductors |
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UAA2080T Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 44 page 1996 Jan 15 6 Philips Semiconductors Product specification Advanced pager receiver UAA2080 Table 1 Tolerances of components shown in Figs 1 and 2 (notes 1 and 2) Notes 1. Recommended crystal: fXTAL = 57.647 MHz (crystal with 8 pF load), 3rd overtone, pullability >2.75 × 10−6/pF (change in frequency between series resonance and resonance with 8 pF series capacitor at 25 °C), dynamic resistance R1 < 40 Ω, ∆f= ±5 × 10−6 for Tamb = −10 to +55 °C with 25 °C reference, calibration plus aging tolerance: −5 × 10−6 to +15 × 10−6. 2. This crystal recommendation is based on economic aspects and practical experience. Normally the spreads for R1, pullability and calibration do not show their worst case limits simultaneously in one crystal. In such a rare event, the tuning range will be reduced to an insufficient level. COMPONENT TOLERANCE (%) REMARK Inductances L1 ±5Qmin = 100 at 173 MHz L2, L3, L6, L7 ±20 Qmin = 50 at 173 MHz; TC = (+25 to +125) × 10−6/K L4, L5 ±10 Qmin = 30 at 173 MHz; TC = (+25 to +125) × 10−6/K L8 ±20 Qmin = 30 at 173 MHz; TC = (+25 to +125) × 10−6/K L9 ±10 Qmin = 30 at 57 MHz; TC = (+25 to +125) × 10−6/K Resistors R1 to R7 ±2 TC = +50 × 10−6/K Capacitors C1, C2, C7, C8, C9, C15 ±5TC = (0 ±30) × 10−6/K; tan δ≤ 30 × 10−4 at 1 MHz C3, C6, C12 − TC = (−750 ±300) × 10−6/K; tan δ≤ 50 × 10−4 at 1 MHz C4, C5, C14, C18, C19 ±10 TC = (0 ±30) × 10−6/K; tan δ≤ 10 × 10−4 at 1 MHz C10, C11 ±5TC = (0 ±30) × 10−6/K; tan δ≤ 21 × 10−4 at 1 MHz C13 ±20 C16 − TC = (−1700 ±500) × 10−6/K; tan δ≤ 50 × 10−4 at 1 MHz C17 ±5TC = (0 ±30) × 10−6/K; tan δ≤ 26 × 10−4 at 1 MHz |
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