UAA2080 Просмотр технического описания (PDF) - Philips Electronics

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UAA2080

Advanced pager receiver

Philips Electronics 

Philips Semiconductors

Advanced pager receiver

Product specification

UAA2080

Table 2 Tolerances of components shown in Figs 3, 4 and 5 (notes 1 and 2)

COMPONENT

TOLERANCE

(%)

REMARK

Inductances

L1, L10

L2, L3, L6, L7

L4, L5

L8

L9

Resistors

R1 to R5

Capacitors

C1, C2, C7, C8, C9

C3, C6, C12, C23

C4, C5, C14, C18 to C22

C10, C11

C13

C16

C17

±5

Qmin = 145 at 470 MHz

±20

Qmin = 50 at 470 MHz; TC = (+25 to +125) × 10−6/K

±10

Qmin = 40 at 470 MHz; TC = (+25 to +125) × 10−6/K

±10

Qmin = 30 at 156 MHz; TC = (+25 to +125) × 10−6/K

±10

Qmin = 40 at 78 MHz; TC = (+25 to +125) × 10−6/K

±2

TC = +50 × 10−6/K

±5

TC = (0 ±30) × 10−6/K; tan δ ≤ 30 × 10−4 at 1 MHz

−

TC = (−750 ±300) × 10−6/K; tan δ ≤ 50 × 10−4 at 1 MHz

±10

TC = (0 ±30) × 10−6/K; tan δ ≤ 10 × 10−4 at 1 MHz

±5

TC = (0 ±30) × 10−6/K; tan δ ≤ 21 × 10−4 at 1 MHz

±20

−

TC = (−1700 ±500) × 10−6/K; tan δ ≤ 50 × 10−4 at 1 MHz

±5

TC = (0 ±30) × 10−6/K; tan δ ≤ 26 × 10−4 at 1 MHz

Notes

1. Recommended crystal: fXTAL = 78.325 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 capacitor at 25 °C), dynamic resistance

R1 < 30 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.

1996 Jan 15

10

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