
1996 Jan 15
22
Philips Semiconductors
Product specication
Advanced pager receiver
UAA2082
AC CHARACTERISTICS (470 MHz)
VP = 2.05 V; Tamb =25 °C; test circuit Figs 3 or 4; fi(RF) = 469.950 MHz with ±4.0 kHz deviation; 1200 baud pseudo
random bit sequence modulation (tr = 250 ± 25 s measured between 10% and 90% of voltage amplitude) and 20 kHz
channel spacing; unless otherwise specied.
Notes
1. The bit error rate BER is measured using the test facility shown in Fig.12. Note that the BER test facility contains a
digital input filter equivalent to the one used in the PCA5000A, PCF5001 and PCD5003 POCSAG decoders.
2. Capacitor C16 requires re-adjustment to compensate temperature drift.
3. Test circuit Fig.5. Pi(mix) is the maximum available power at the input of the test board. The bit error rate BER is
measured using the test facility shown in Fig.12.
4.
f is the frequency offset between the required signal and the interfering signal.
5. Turn-on time is defined as the time from pin RE going HIGH to the reception of valid data on output pin DO. Turn-on
time is measured using an external oscillator (turn-on time using the internal oscillator is dependent upon the
oscillator circuitry).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Radio frequency input
Pi(ref)
input sensitivity (Pi(ref) is the
maximum available power at
the RF input of the test board)
BER
≤ 3100; note 1
124.5 121.5 dBm
Tamb = 10 to +70 °C; note 2
118.5 dBm
VP = 1.9 V
115.5 dBm
Mixer input
Pi(mix)
input sensitivity
BER
≤ 3100; note 3
115.0 110.0 dBm
Mixers to demodulator
α
acs
adjacent channel selectivity
Tamb =25 °C67
70
dB
Tamb = 10 to +70 °C65
dB
αci
IF lter channel imbalance
2dB
αc
co-channel rejection
47dB
αsp
spurious immunity
50
60
dB
αim
intermodulation immunity
55
60
dB
αbl
blocking immunity
f >±1 MHz; note 4
75
82
dB
foffset
frequency offset range
(3 dB degradation in sensitivity)
deviation f =
±4.0 kHz
±2.0
kHz
deviation f =
±4.5 kHz
±2.5
kHz
fdev
deviation range
(3 dB degradation in sensitivity)
2.5
7.0
kHz
ton
receiver turn-on time
data valid after setting RE input
HIGH; note 5
5ms