Philips Semiconductors
Advanced pager receiver
Product specification
UAA2082
Table 1 Tolerances of components shown in Figs 1 and 2 (notes 1 and 2)
COMPONENT
TOLERANCE
(%)
REMARK
Inductances
L1
L2, L3, L6, L7
L4, L5
L8
L9
Resistors
R1 to R7
Capacitors
C1, C2, C7, C8, C9, C15
C3, C6, C12
C4, C5, C14, C18, C19, C20
C10, C11
C13
C16
C17
±5
Qmin = 100 at 173 MHz
±20
Qmin = 50 at 173 MHz; TC = (+25 to +125) × 10−6/K
±10
Qmin = 30 at 173 MHz; TC = (+25 to +125) × 10−6/K
±20
Qmin = 30 at 173 MHz; TC = (+25 to +125) × 10−6/K
±10
Qmin = 30 at 57 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 = 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.
1996 Jan 15
6