UAA2080 datasheet(6/44 Pages) PHILIPS

Part #	UAA2080

Description	Advanced pager receiver

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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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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