參數(shù)資料
型號(hào)： UAA2080
廠商： NXP Semiconductors N.V.
英文描述： Advanced pager receiver
中文描述： 高級(jí)尋呼機(jī)接收器
文件頁(yè)數(shù)： 10/44頁(yè)
文件大?。?/td> 509K
代理商： UAA2080
1996 Jan 15
10
Philips Semiconductors
Product specification
Advanced pager receiver
UAA2080
Table 2
Tolerances of components shown in Figs 3, 4 and 5 (notes 1 and 2)
Notes
1.
Recommended crystal: f
XTAL
= 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
,
f =
±
5
×
10
6
for T
amb
=
10 to +55
°
C with 25
°
C reference, calibration plus aging tolerance:
5
×
10
6
to +15
×
10
6
.
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.
2.
COMPONENT
TOLERANCE
(%)
REMARK
Inductances
L1, L10
L2, L3, L6, L7
L4, L5
L8
L9
±
5
±
20
±
10
±
10
±
10
Q
min
= 145 at 470 MHz
Q
min
= 50 at 470 MHz; TC = (+25 to +125)
×
10
6
/K
Q
min
= 40 at 470 MHz; TC = (+25 to +125)
×
10
6
/K
Q
min
= 30 at 156 MHz; TC = (+25 to +125)
×
10
6
/K
Q
min
= 40 at 78 MHz; TC = (+25 to +125)
×
10
6
/K
Resistors
R1 to R5
±
2
TC = +50
×
10
6
/K
Capacitors
C1, C2, C7, C8, C9
C3, C6, C12, C23
C4, C5, C14, C18 to C22
C10, C11
C13
C16
C17
±
5
±
10
±
5
±
20
±
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
TC = (0
±
30)
×
10
6
/K; tan
δ ≤
10
×
10
4
at 1 MHz
TC = (0
±
30)
×
10
6
/K; tan
δ ≤
21
×
10
4
at 1 MHz
TC = (
1700
±
500)
×
10
6
/K; tan
δ ≤
50
×
10
4
at 1 MHz
TC = (0
±
30)
×
10
6
/K; tan
δ ≤
26
×
10
4
at 1 MHz
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