參數(shù)資料
型號： 935262056518
廠商： NXP SEMICONDUCTORS
元件分類： 尋呼電路
英文描述： TELECOM, PAGING DECODER, PQFP32
封裝： 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, SOT-358-1, LQFP-32
文件頁數(shù)： 63/76頁
文件大?。?/td> 301K
代理商： 935262056518
1999 Apr 12
66
Philips Semiconductors
Product specication
FLEX
roaming decoder II
PCD5013
Notes
1. T is one period of the clock source either generated by the internal oscillator, or applied at the input EXTAL. Note
that from power-up, the oscillator start-up time can influence the availability and period of clock strobes. This can
affect the RESET HIGH to READY LOW timing.
2. When the host re-programs an address word with a host-to-decoder packet ID > 7FH, there is an added delay before
the PCD5013 is ready for another packet.
14 OSCILLATOR CHARACTERISTICS
Tamb = 25 to +70 °C; note 1.
Notes
1. Designed for quartz crystal type: SEIKO VTC200 or equivalent; parameters: f = 76800Hz, RS =35k (max.),
CL =C1.C2/(C1 +C2)+Cstray = 8 to 12 pF, C0 = crystal shunt capacitance = 0.8 pF (typ.),
Cf = typical parasitic pin capacitance = 2 pF; maximum overall frequency tolerance (including transmitter)
is 300 ppm (Section 8.4.4).
2. Extracted from evaluations under conditions as in Fig.19; this value is strongly dependent on external conditions
(load and parasitic capacitances).
td(SS-READY)
SS-to-READY delay time
previous packet did not program
an address word; note 2
80
s
previous packet programmed
an address word; note 2
420
s
tREADYH
READY HIGH time
50
s
tLEAD2
READY lead time
200
ns
tLAG2
READY lag time
200
ns
tsu(i)(D)
MOSI data setup time
200
ns
th(i)(D)
MOSI data hold time
200
ns
tACC(o)
MISO access time
0
200
ns
to(dis)
MISO disable time
300
ns
tDOV
MISO data valid time
200
ns
th(o)(D)
MISO data hold time
0
ns
tSSH
SS HIGH time
200
ns
tSCKH
SCK HIGH time
300
ns
tSCKL
SCK LOW time
200
ns
tr
SCK rise time
10% to 90% VDD
1
s
tf
SCK fall time
10% to 90% VDD
1
s
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
C1
external capacitor at pin EXTAL
note 1
15
pF
C2
external capacitor at pin XTAL
note 1
15
pF
Rf
external feedback resistor
note 1
10
M
gm(osc)
oscillator transconductance
9.4
27
70
S
Iosc
oscillator operating supply current
VDD = 2.2 V; note 2
2
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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