1997 Jun 24
36
Philips Semiconductors
Product specification
Advanced POCSAG and APOC-1 Paging
Decoder
PCD5002
Notes
1.
Inputs: SDA and SCL pulled up to V
DD
; all other inputs connected to V
SS
.
Outputs: RXE and ROE logic 0; REF: f
ref
=
1
60
Hz; all other outputs open-circuit.
Oscillator: no crystal; external clock f
osc
= 76800 Hz; amplitude: V
SS
to V
DD
.
Voltage convertor disabled (SPF byte 01, bit D7 = 0; see Table 24).
Maximum output current is subject to absolute maximum ratings per output (see Chapter 10).
When ATL (open drain output) is not activated it is high impedance.
2.
3.
12 DC CHARACTERISTICS (WITH VOLTAGE CONVERTER)
V
DD
= 2.7 V; V
SS
= 0 V; V
PR
= V
PO
; T
amb
=
25 to +70
°
C; C
s
= 100 nF; voltage converter enabled.
13 OSCILLATOR CHARACTERISTICS
Quartz crystal type: MX-1V or equivalent.
Quartz crystal parameters: f = 76800 Hz; R
S(max)
= 35 k
; C
L
= 8 pF; C
0
= 1.4 pF; C
1
= 1.5 fF.
Maximum overall tolerance:
±
200
×
10
6
(includes: cutting, temperature, aging) for POCSAG,
±
55
×
10
6
for APOC-1
(‘transmitter off’ mode).
I
OH
HIGH level output current
VIB, LED
ATH
INT, REF
ZSD, ZSC, ZLE
ATL
ROE, RXE
T
amb
= 25
°
C
V
OH
= 0.7 V
V
OH
= 0.7 V
V
OH
= 2.4 V
V
OH
= 2.4 V
ATL high-impedance; note 3
V
OH
= 2.4 V
0.6
3.0
80
60
600
2.4
11.0
0.5
mA
mA
μ
A
μ
A
μ
A
μ
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
DD
V
PO(0)
V
PO
I
PO
supply voltage
output voltage; no load
output voltage
output current
1.5
3.0
400
650
5.4
3.5
650
900
3.0
V
V
V
μ
A
μ
A
V
DD
= 2.7; I
PO
= 0
V
DD
= 2 V; I
PO
=
250
μ
A
V
DD
= 2 V; V
PO
= 2.7 V
V
DD
= 3 V; V
PO
= 4.5 V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
C
XO
g
m
output capacitance XTAL2
oscillator transconductance
6
10
12
pF
μ
S
V
DD
= 1.5 V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT