PCD5003A Datasheet, PDF (39/44 Pages) NXP Semiconductors – Enhanced Pager Decoder for POCSAG

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BATTERY
POSITIVE
M
ANT
V
DATA
OUT
RECEIVER ^BAT
REF
OSC
PWR
CTRL
V
VCO
V
PWR
CTRL
FREQUENCY DATA
SYNTHESIZER _CLK
LATCH
V
ATL ATH
VIB
LED
RDI
BAT
Cs
100 nF
(2)
(1)
4.7
kΩ
VDD CCP CCN VPO VPR
RST
(2)
RXE
PCD5003A
DECODER
ROE
ZSD
ZSC
ZLE
XTAL1
XTAL2
VSS
DQC TS1
DON
INT
REF
ALC
SDA
SCL
TS2
10 pF
76.8 kHz
BATTERY
n.c.
n.c.
n.c.
NEGATIVE
2.2 MΩ
I²C-bus
(1)
4.7
10
µF
kΩ
V
function
keys
MICROCONTROLLER
V
V
LCD
DRIVER
V
V
LCD
DRIVER
V
LCD
MGL570
(1) Value depends on number of devices attached.
(2) Values should be chosen to give a time constant of at least 150 µs. C = 2.2 nF and R = 100 kΩ are recommended.
Fig.16 Typical application example (display pager).