參數(shù)資料
型號(hào): PCD5008
廠商: NXP Semiconductors N.V.
英文描述: FLEX Pager Decoder
中文描述: FleX創(chuàng)建傳呼機(jī)解碼器
文件頁(yè)數(shù): 56/64頁(yè)
文件大?。?/td> 341K
代理商: PCD5008
1998 Jun 17
56
Philips Semiconductors
Product specification
FLEX
Pager Decoder
PCD5008
12 OSCILLATOR CHARACTERISTICS
T
amb
=
25 to +70
°
C; note 1.
Notes
1.
Designed for quartz crystal type: SEIKO VTC200 or equivalent; parameters: f = 76800Hz, R
S
= 35 k
(max.),
C
L
= (C
1
//C
2
) + C
stray
= 8 to 12 pF, C
0
= crystal shunt capacitance = 0.8 pF (typ.),
C
f
= typical parasitic pin capacitance = 2 pF; maximum overall frequency tolerance (including transmitter)
is 300 ppm (Section 8.4.4).
Extracted from evaluations under conditions as in Fig.18; this value is strongly dependent on external conditions
(load and parasitic capacitances).
2.
13 THERMAL CHARACTERISTICS
14 HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices.
SYMBOL
PARAMETER
CONDITIONS
MIN.
9.4
TYP.
MAX.
50
UNIT
C
1
C
2
R
f
g
m(osc)
external capacitor at pin EXTAL
external capacitor at pin XTAL
external feedback resistor
oscillator transconductance
note 1
note 1
note 1
V
DD
= 1.8 V
V
DD
= 3.6 V
V
DD
= 2.2 V; note 2
15
15
10
19.6
22.6
2
pF
pF
M
μ
S
μ
S
μ
A
I
osc
oscillator operating supply current
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
R
th(j-a)
thermal resistance from junction to ambient in free air
80
K/W
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