PCD5003AH Philips Semiconductors, PCD5003AH Datasheet - Page 39

• Manufacturer Part Number: PCD5003AH
• Description: Enhanced Pager Decoder for POCSAG
• Manufacturer: Philips Semiconductors

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(1) Value depends on number of devices attached
(2) Values should be chosen to give a time constant of at least 150 s. C = 2.2 nF and R = 100 k are recommended.
SYNTHESIZER
FREQUENCY
ANT
OSC
VCO
RECEIVER
BATTERY
POSITIVE
V
V
V
V
LATCH
DATA
DATA
CTRL
CTRL
PWR
PWR
OUT
BAT
REF
CLK
10 pF
RDI
BAT
RXE
ROE
ZSD
ZSC
ZLE
ATL ATH
XTAL1
.
76.8 kHz
2.2 M
XTAL2
VIB
Fig.16 Typical application example (display pager).
M
NEGATIVE
BATTERY
LED
PCD5003A
DECODER
V SS
V DD
DQC
n.c.
CCP CCN
100 nF
C s
TS1
n.c.
V PO
TS2
n.c.
DON
SDA
V PR
RST
REF
ALC
SCL
INT
(2)
I
2
C-bus
(2)
4.7
k
(1)
(1)
4.7
k
V
V
DRIVER
DRIVER
MICROCONTROLLER
LCD
LCD
10
F
V
V
V
V
MGL570
LCD
function
keys