INTEGRATED CIRCUITS
DATA SHEET
UAA2080
Advanced pager receiver
Product specification
Supersedes data of 1995 Nov 27
File under Integrated Circuits, IC03
1996 Jan 15
Philips Semiconductors
Product specification
Advanced pager receiver
FEATURES
•
Wide frequency range: VHF, UHF and 900 MHz bands
•
High sensitivity
•
High dynamic range
•
Electronically adjustable filters on chip
•
Suitable for data rates up to 2400 bits/s
•
Wide frequency offset and deviation range
•
Fully POCSAG compatible FSK receiver
•
Power on/off mode selectable by the chip enable input
•
Low supply voltage; low power consumption
•
High integration level
•
Interfaces directly to the PCA5000A, PCF5001 and
PCD5003 POCSAG decoders.
APPLICATIONS
•
Wide area paging
•
On-site paging
•
Telemetry
•
RF security systems
•
Low bit-rate wireless data links.
ORDERING INFORMATION
TYPE
NUMBER
UAA2080H
UAA2080T
UAA2080U
PACKAGE
NAME
LQFP32
SO28
28 pads
DESCRIPTION
plastic low profile quad flat package; 32 leads; body 7
×
7
×
1.4 mm
plastic small outline package; 28 leads; body width 7.5 mm
naked die; see Fig.9
GENERAL DESCRIPTION
UAA2080
The UAA2080 is a high-performance low-power radio
receiver circuit primarily intended for VHF, UHF and
900 MHz pager receivers for wide area digital paging
systems, employing direct FM non-return-to-zero (NRZ)
frequency shift keying (FSK).
The receiver design is based on the direct conversion
principle where the input signal is mixed directly down to
the baseband by a local oscillator on the signal frequency.
Two complete signal paths with signals of 90° phase
difference are required to demodulate the signal.
All channel selectivity is provided by the built-in IF filters.
The circuit makes extensive use of on-chip capacitors to
minimize the number of external components.
The UAA2080 was designed to operate together with the
PCA5000A, PCF5001 or PCD5003 POCSAG decoders,
which contain a digital input filter for optimum call success
rate.
VERSION
SOT358-1
SOT136-1
1996 Jan 15
2
Philips Semiconductors
Product specification
Advanced pager receiver
QUICK REFERENCE DATA
SYMBOL
V
P
I
P
I
P(off)
P
i(ref)
PARAMETER
supply voltage
supply current
stand-by current
RF input sensitivity
BER
≤
3
⁄
100
;
±4
kHz deviation;
data rate 1200 bits/s; T
amb
= 25
°C
f
i(RF)
= 173 MHz
f
i(RF)
= 470 MHz
f
i(RF)
= 930 MHz
P
i(mix)
mixer input sensitivity
BER
≤
3
⁄
100
; f
i(RF)
= 470 MHz;
±4
kHz deviation;
data rate 1200 bits/s; T
amb
= 25
°C
−
−
−
−
CONDITIONS
MIN.
1.9
2.3
−
TYP.
2.05
2.7
−
UAA2080
MAX.
3.5
3.2
3
UNIT
V
mA
µA
−126.5 −123.5
dBm
−124.5 −121.5
dBm
−120.0 −114.0
dBm
−115.0 −110.0
dBm
V
th
T
amb
detection threshold for battery
LOW indicator
operating ambient temperature
1.95
−10
2.05
−
2.15
+70
V
°C
1996 Jan 15
3
VP
Pins 9, 17, 23 and 29 are not connected.
Product specification
UAA2080
Fig.1 Block, test and application diagram drawn for LQFP32; f
i(RF)
= 172.941 MHz.
handbook, full pagewidth
1996 Jan 15
R5
1.8
kΩ
XTAL
L7
33 nH
TDC
GND3
31
30
28
27
26
25
C12
5 to 20 pF
R4
2.2 kΩ
33 nH
C16
13 to
50 pF
C17
15 pF
32
C15
27 pF
C14
1 nF
R7
100
Ω
C13
10
µF
C19
1 nF
R3
1.5 kΩ
L6
L8
27
nH
CRYSTAL
OSCILLATOR
24
22
VP
low noise
amplifier Q
21
R2
47
kΩ
BATTERY
LOW
INDICATOR
LIMITER
Q
GYRATOR
FILTER
FILTER
DEMO-
DULATOR
GYRATOR
LIMITER
I
low noise
amplifier I
FILTER
FILTER
MIXER Q
19
18
BAND GAP
REFERENCE
V
P
14
Vref
ACTIVE
20
GND2
ACTIVE
C18
1 nF
Philips Semiconductors
L9
560
nH
Advanced pager receiver
BLOCK AND TEST DIAGRAMS (173 MHz)
TS
1
FREQUENCY
MULTIPLIER
BLI
2
to
decoder
DO
3
RE
4
4
RF pre-amplifier
MIXER I
10
11
GND1
330
Ω
R1
L2
L3
22 nH 22 nH
C10
C5 1 nF 22 pF
C7
8.2 pF
C6
5 to
20 pF
C8
8.2 pF
C11
22 pF
C9
8.2 pF
12
13
15
16
C4 1 nF
VP
TPI
5
IF testpoints TPQ
C1
8.2 pF
6
V i(RF)
7
L1
43
nH
C3
5 to
20 pF 8
UAA2080H
L4
150
nH
L5
150
nH
C2
8.2 pF
MLC700
Product specification
UAA2080
Fig.2 Block, test and application diagram drawn for SO28 and naked die; f
i(RF)
= 172.941 MHz.
handbook, full pagewidth
1996 Jan 15
R5
1.8 kΩ
C16
13 to
50 pF
XTAL
33 nH
C17
R2
TDC
TS
GND3
23
21
20
FREQUENCY
MULTIPLIER
19
18
17
16
15
22
26
CRYSTAL
OSCILLATOR
25
24
15 pF
C12
5 to 20 pF
47 kΩ
R4
2.2 kΩ
33 nH
L8
27
nH
R7
100
Ω
C14
1 nF
C13
10
µF
L7
R3
1.5 kΩ
L6
C15
27
pF
VP
C 19
1 nF
C18
1 nF
BLI
L9
560 nH
Philips Semiconductors
decoder
DO
RE
28
27
Advanced pager receiver
BAND GAP
REFERENCE
VP
VP
low noise
amplifier
Q
Vref
BATTERY
LOW
INDICATOR
UAA2080T
UAA2080U
ACTIVE
FILTER
GYRATOR
LIMITER
Q
FILTER
DEMODULATOR
5
GYRATOR
LIMITER
I
FILTER
FILTER
ACTIVE
RF pre-amplifier
low noise
amplifier
I
MIXER I
4
C3
5 to 20 pF
L1
43 nH
C2
8.2 pF
V
P
C4
330
Ω
R1
GND1
L3
L2
22 nH 22 nH
5
6
7
8
9
10 pF
C5
1 nF
C6
5 to 20 pF
1 nF
8.2 pF
C7
C8
8.2 pF
10
11
10 pF
C10 C11
MIXER Q
12
13
14
GND2
L4
150
nH
C9
8.2 pF
L5
150
nH
MLC701
1
2
3
TPI
TPQ
IF testpoints
C1
8.2 pF
V i(RF)
