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Компоненты Описание
UPD2845GR Просмотр технического описания (PDF) - NEC => Renesas Technology
Номер в каталоге
Компоненты Описание
производитель
UPD2845GR
1 V, 1.3 mA, 94MHz PLL SYNTHESIZER LSI FOR PAGER SYSTEM
NEC => Renesas Technology
UPD2845GR Datasheet PDF : 16 Pages
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P
PD2845GR
APPLICATION CIRCUIT EXAMPLES
Passive filter application example (using internal charge pump)
V
DD1
1
µ
F
V
DD2
VCO out
100 pF
1
µ
F
VCO
1 000 pF
V
DD1
F
IN
GND
XI
X’tal
XO
LE
10 pF
12.8 MHz
10 pF
controller
FR
CLK
RESET
DATA
EO
PS
passive filter
EOP
NC
EON
V
DD2
µ
PD2845GR
100 pF
V
DD1
V
DD2
X’tal
: 1.0 to 1.1 V
: 2.85 to 3.15 V
: 12.8 MHz
Active filter application example (using external charge pump)
F
IN
(2 pin)
VCO
LPF
PMOS
NMOS
EO
EOP
EON
7
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