UAA2080U-10
DATA SH EET
Product specification
Supersedes data of 1995 Nov 27
File under Integrated Circuits, IC03
1996 Jan 15
INTEGRATED CIRCUITS
UAA2080
Advanced pager receiver
1996 Jan 15 2
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
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.
GENERAL DESCRIPTION
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.
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
UAA2080H LQFP32 plastic low profile quad flat package; 32 leads; body 7 × 7 × 1.4 mm SOT358-1
UAA2080T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1
UAA2080U 28 pads naked die; see Fig.9
1996 Jan 15 3
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
supply voltage 1.9 2.05 3.5 V
I
P
supply current 2.3 2.7 3.2 mA
I
P(off)
stand-by current −−3µA
P
i(ref)
RF input sensitivity BER ≤3⁄
100
; ±4 kHz deviation;
data rate 1200 bits/s; T
amb
=25°C
f
i(RF)
= 173 MHz −−126.5 −123.5 dBm
f
i(RF)
= 470 MHz −−124.5 −121.5 dBm
f
i(RF)
= 930 MHz −−120.0 −114.0 dBm
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
−−115.0 −110.0 dBm
V
th
detection threshold for battery
LOW indicator
1.95 2.05 2.15 V
T
amb
operating ambient temperature −10 − +70 °C
1996 Jan 15 4
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
BLOCK AND TEST DIAGRAMS (173 MHz)
handbook, full pagewidth
MLC700
ACTIVE
FILTER
GYRATOR
FILTER
ACTIVE
FILTER
GYRATOR
FILTER
low noise
amplifier Q
low noise
amplifier I
15 16
18
19
RF pre-amplifier
11
R1
10
8
C3
5 to
20 pF
L1
43
nH
C2
8.2 pF
C1
8.2 pF
BAND GAP
REFERENCE
IF testpoints
TPI
TPQ
5
6
7
GND1
L3
22 nH
L2
22 nH
12
C4 1 nF
C5 1 nF
C10
22 pF
C11
22 pF
C7
8.2 pF
C6
5 to
20 pF
C8
8.2 pF
C9
8.2 pF
L4
150
nH
L5
150
nH
13 14
CRYSTAL
OSCILLATOR
FREQUENCY
MULTIPLIER
V
ref
BLI
RE
to
decoder
3
2
1TS
C18
1 nF
R5
1.8
kΩ
L9
560
nH
C16
13 to
50 pF
XTAL
C17
15 pF
C14
1 nF
V
P
V
P
C13
10 µF
R7
100 Ω
2627
TDC
28
C15
27 pF
L827nH
GND3
303132
R4
2.2 kΩ
C19
1 nF
UAA2080H
24
25
C12
5 to 20 pF
L7
33 nH
L6
33 nH
R3
1.5 kΩ
R247kΩ
22
21
20
GND2
BATTERY
LOW
INDICATOR
LIMITER
Q
DEMO-
DULATOR
LIMITER
I
DO
MIXER I
MIXER Q
V
P
4
330
Ω
V
i(RF)
V
P
Fig.1 Block, test and application diagram drawn for LQFP32; f
i(RF)
= 172.941 MHz.
Pins 9, 17, 23 and 29 are not connected.
1996 Jan 15 5
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
handbook, full pagewidth
MLC701
ACTIVE
FILTER
GYRATOR
FILTER
ACTIVE
FILTER
GYRATOR
FILTER
low noise
amplifier
Q
low noise
amplifier
I
10 11 12 13 14
LIMITER
Q
DEMODULATOR
LIMITER
I
RF pre-amplifier
6
330
Ω
R1
54
C3
5 to 20 pF
L1
43 nH
C2
8.2 pF
C1
8.2 pF
BAND GAP
REFERENCE
IF testpoints
TPI TPQ
12 3
GND1
L2
22 nH
L3
22 nH
7
C4 1 nF
C5 1 nF
C10 C11
10 pF 10 pF
C7
8.2 pF
C6
5 to 20 pF
8.2 pF
C8
C9
8.2 pF
L4
150
nH
L5
150
nH
GND2
89
CRYSTAL
OSCILLATOR
FREQUENCY
MULTIPLIER
BATTERY
LOW
INDICATOR
V
P
V
P
28
V
ref
BLI
DO
RE
decoder
27 26 25
TS
13 to
50 pF
C18
1 nF
R5
1.8 kΩ
L9
560 nH
C16
XTAL
C17
15 pF
16 151718
C14
1 nF
V
P
R2
47 kΩ
C12
5 to 20 pF
L7
33 nHL633 nH
R3
1.5 kΩ
V
P
C13
10 µF
1920
TDC
21
C15
27
pF
L8
27
nH
GND3
222324
R 4
2.2 kΩ
C 19
1 nF
UAA2080T
UAA2080U
MIXER I MIXER Q
R7
100 Ω
V
i(RF)
Fig.2 Block, test and application diagram drawn for SO28 and naked die; f
i(RF)
= 172.941 MHz.
1996 Jan 15 6
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
Table 1 Tolerances of components shown in Figs 1 and 2 (notes 1 and 2)
Notes
1. Recommended crystal: f
XTAL
= 57.647 MHz (crystal with 8 pF load), 3rd overtone, pullability >2.75 × 10−6/pF
(change in frequency between series resonance and resonance with 8 pF series capacitor at 25 °C), dynamic
resistance R1 < 40 Ω, ∆f=±5×10−6 for T
amb
= −10 to +55 °C with 25 °C reference, calibration plus aging tolerance:
−5 × 10−6to +15 × 10−6.
2. This crystal recommendation is based on economic aspects and practical experience. Normally the spreads for R1,
pullability and calibration do not show their worst case limits simultaneously in one crystal. In such a rare event, the
tuning range will be reduced to an insufficient level.
COMPONENT
TOLERANCE
(%)
REMARK
Inductances
L1 ±5Q
min
= 100 at 173 MHz
L2, L3, L6, L7 ±20 Q
min
= 50 at 173 MHz; TC = (+25 to +125) × 10−6/K
L4, L5 ±10 Q
min
= 30 at 173 MHz; TC = (+25 to +125) × 10−6/K
L8 ±20 Q
min
= 30 at 173 MHz; TC = (+25 to +125) × 10−6/K
L9 ±10 Q
min
= 30 at 57 MHz; TC = (+25 to +125) × 10−6/K
Resistors
R1 to R7 ±2 TC = +50 × 10−6/K
Capacitors
C1, C2, C7, C8, C9, C15 ±5TC=(0±30) × 10−6/K; tan δ≤ 30 × 10−4at 1 MHz
C3, C6, C12 − TC = (−750 ±300) × 10
−6
/K; tan δ≤50 × 10−4at 1 MHz
C4, C5, C14, C18, C19 ±10 TC = (0 ±30) × 10
−6
/K; tan δ≤10 × 10−4at 1 MHz
C10, C11 ±5TC=(0±30) × 10
−6
/K; tan δ≤21 × 10−4at 1 MHz
C13 ±20
C16 − TC = (−1700 ±500) × 10
−6
/K; tan δ≤50 × 10−4at 1 MHz
C17 ±5TC=(0±30) × 10
−6
/K; tan δ≤26 × 10−4at 1 MHz
1996 Jan 15 7
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
BLOCK AND TEST DIAGRAMS (470 MHz)
handbook, full pagewidth
MLC702
ACTIVE
FILTER
GYRATOR
FILTER
ACTIVE
FILTER
GYRATOR
FILTER
low noise
amplifier Q
low noise
amplifier I
15 16
18
19
RF pre-amplifier
11
R1
10
8
C3
2.5 to
6 pF
L1
12.5
nH
C2
2.7 pF
C1
2.7 pF
BAND GAP
REFERENCE
IF testpoints
TPI
TPQ
5
6
7
GND1
L3
8 nH
L2
8 nH
12
C4 1 nF
C5 1 nF
C10
22 pF
C11
22 pF
C7
2.7 pF
C6
2.5 to
6 pF
C8
2.7 pF
C9
2.7 pF
L4
40
nH
L5
40
nH
13 14
CRYSTAL
OSCILLATOR
FREQUENCY
MULTIPLIER
V
ref
BLI
RE
to
decoder
3
2
1TS
C18
1 nF
R5
1.8
kΩ
L9
560
nH
C16
13 to
50 pF
XTAL
C17
15 pF
C14
1 nF
V
P
V
P
C13
10 µF
2627
TDC
28
C15
3 to
10 pF
L8
100
nH
GND3
303132
R4
1.2 kΩ
C19
1 nF
UAA2080H
24
25
C12
2.5 to 6 pF
L7
8 nH
L6
8 nH
R3
820 Ω
R247kΩ
22
21
20
GND2
BATTERY
LOW
INDICATOR
LIMITER
Q
DEMO-
DULATOR
LIMITER
I
DO
MIXER I
MIXER Q
V
P
4
330
Ω
V
i(RF)
V
P
Fig.3 Block, test and application diagram drawn for LQFP32; f
i(RF)
= 469.95 MHz.
Pins 9, 17, 23 and 29 are not connected.
1996 Jan 15 8
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
handbook, full pagewidth
MLC703
ACTIVE
FILTER
GYRATOR
FILTER
ACTIVE
FILTER
GYRATOR
FILTER
low noise
amplifier
Q
low noise
amplifier
I
10 11 12 13 14
LIMITER
Q
DEMODULATOR
LIMITER
I
RF pre-amplifier
6
330
Ω
R1
54
C3
2.5 to 6 pF
L1
12.5 nH
C2
2.7 pF
C1
2.7 pF
BAND GAP
REFERENCE
IF testpoints
TPI TPQ
12 3
GND1
L2
8 nH
L3
8 nH
7
C4 1 nF
C5 1 nF
C10 C11
22 pF 22 pF
C7
2.7 pF
C6
2.5 to 6 pF
2.7 pF
C8
C9
2.7 pF
L4
40
nH
L5
40
nH
GND2
89
CRYSTAL
OSCILLATOR
FREQUENCY
MULTIPLIER
BATTERY
LOW
INDICATOR
V
P
V
P
28
V
ref
BLI
DO
RE
decoder
27 26 25
TS
13 to
50 pF
C18
1 nF
R5
1.8 kΩ
L9
560 nH
C16
XTAL
C17
15 pF
16 151718
C14
1 nF
V
P
R2
47 kΩ
C12
2.5 to 6 pF
L7
8 nHL68 nH
R3
820 Ω
V
P
C13
10 µF
1920
TDC
21
C15
3 to
10 pF
L8
100
nH
GND3
222324
R 4
1.2 kΩ
C 19
1 nF
UAA2080T
UAA2080U
MIXER I MIXER Q
V
i(RF)
Fig.4 Block, test and application diagram drawn for SO28 and naked die; f
i(RF)
= 469.95 MHz.
1996 Jan 15 9
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
handbook, full pagewidth
MLC704
ACTIVE
FILTER
GYRATOR
FILTER
ACTIVE
FILTER
GYRATOR
FILTER
low noise
amplifier Q
low noise
amplifier I
15 16
18
19
RF pre-amplifier
1110
8
V
i(RF)
BAND GAP
REFERENCE
IF testpoints
TPI
TPQ
5
6
7
GND1
12
C10
22 pF
C11
22 pF
C21
5.6 pF
C5
1 nF
C23
2.5 to 6 pF
C22
5.6 pF
L10
12.5 nH
L4
40
nH
L5
40
nH
13 14
CRYSTAL
OSCILLATOR
FREQUENCY
MULTIPLIER
V
ref
BLI
RE
to
decoder
3
2
1TS
C18
1 nF
R5
1.8
kΩ
L9
560
nH
C16
13 to
50 pF
XTAL
C17
15 pF
C14
1 nF
V
P
V
P
C13
10 µF
2627
TDC
28
C15
3 to
10 pF
L8
100
nH
GND3
303132
R4
1.2 kΩ
C19
1 nF
UAA2080H
24
25
C12
2.5 to 6 pF
L7
8 nH
L6
8 nH
R3
820 Ω
R247kΩ
22
21
20
GND2
BATTERY
LOW
INDICATOR
LIMITER
Q
DEMO-
DULATOR
LIMITER
I
DO
MIXER I
MIXER Q
V
P
4
V
P
Fig.5 Mixer input sensitivity test circuit; f
i(RF)
= 469.95 MHz.
1996 Jan 15 10
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
Table 2 Tolerances of components shown in Figs 3, 4 and 5 (notes 1 and 2)
Notes
1. Recommended crystal: f
XTAL
= 78.325 MHz (crystal with 8 pF load), 3rd overtone, pullability >2.75 × 10−6/pF
(change in frequency between series resonance and resonance with 8 pF capacitor at 25 °C), dynamic resistance
R1 < 30 Ω, ∆f=±5×10−6 for T
amb
= −10 to +55 °C with 25 °C reference, calibration plus aging tolerance:
−5 × 10−6to +15 × 10−6.
2. This crystal recommendation is based on economic aspects and practical experience. Normally the spreads for R1,
pullability and calibration do not show their worst case limits simultaneously in one crystal. In such a rare event, the
tuning range will be reduced to an insufficient level.
COMPONENT
TOLERANCE
(%)
REMARK
Inductances
L1, L10 ±5Q
min
= 145 at 470 MHz
L2, L3, L6, L7 ±20 Q
min
= 50 at 470 MHz; TC = (+25 to +125) × 10−6/K
L4, L5 ±10 Q
min
= 40 at 470 MHz; TC = (+25 to +125) × 10−6/K
L8 ±10 Q
min
= 30 at 156 MHz; TC = (+25 to +125) × 10−6/K
L9 ±10 Q
min
= 40 at 78 MHz; TC = (+25 to +125) × 10−6/K
Resistors
R1 to R5 ±2 TC = +50 × 10−6/K
Capacitors
C1, C2, C7, C8, C9 ±5TC=(0±30) × 10−6/K; tan δ≤30 × 10−4 at 1 MHz
C3, C6, C12, C23 − TC = (−750 ±300) × 10
−6
/K; tan δ≤50 × 10−4at 1 MHz
C4, C5, C14, C18 to C22 ±10 TC = (0 ±30) × 10
−6
/K; tan δ≤10 × 10−4 at 1 MHz
C10, C11 ±5TC=(0±30) × 10
−6
/K; tan δ≤21 × 10−4 at 1 MHz
C13 ±20
C16 − TC = (−1700 ±500) × 10
−6
/K; tan δ≤50 × 10−4at 1 MHz
C17 ±5TC=(0±30) × 10
−6
/K; tan δ≤26 × 10−4at 1 MHz
1996 Jan 15 11
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
BLOCK AND TEST DIAGRAM (930 MHz)
handbook, full pagewidth
MLC705
ACTIVE
FILTER
GYRATOR
FILTER
ACTIVE
FILTER
GYRATOR
FILTER
low noise
amplifier Q
low noise
amplifier I
15 16
18
19
RF pre-amplifier
11
R1
10
8
C3
1.7 to
3 pF
L1
5
nH
C2
1.0 pF
C1
1.2 pF
BAND GAP
REFERENCE
IF testpoints
TPI
TPQ
5
6
7
GND1
L3
3.5 nH
L2
3.5 nH
12
C4 150 pF
C5
150 pF
L10
5 nH
L11
5 nH
C7
1.5 pF
C6
1.7 to
3 pF
C8
1.5 pF
C9
1.2 pF
L4
12.5
nH
L5
12.5
nH
13 14
CRYSTAL
OSCILLATOR
FREQUENCY
MULTIPLIER
V
i(OSC)
V
ref
BLI
RE
to
decoder
3
2
1TS
C14
150
pF
V
P
V
P
C13
4.7 µF
2627
TDC
28
3.3 pF
C15
L8
33 nH
GND3
303132
R4
390 Ω
C19
150 pF
UAA2080H
24
25
C12
1.7 to 3 pF
L7
3 nH
L6
3 nH
R3
330 Ω
R247kΩ
22
21
20
GND2
BATTERY
LOW
INDICATOR
LIMITER
Q
DEMO-
DULATOR
LIMITER
I
DO
MIXER I
MIXER Q
V
P
4
120
Ω
V
i(RF)
V
P
Fig.6 Test circuit; f
i(RF)
= 930.50 MHz.
Pins 9, 17, 23 and 29 are not connected.
1996 Jan 15 12
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
Table 3 Tolerances of components shown in Fig.6 (note 1)
Note
1. The external oscillator signal V
i(OSC)
has a frequency of f
OSC
= 310.1667 MHz.
COMPONENT
TOLERANCE
(%)
REMARK
Inductances
L1 ±10 Q
typ
= 150 at 930 MHz
L2, L3, L6, L7 − microstrip inductor
L4, L5 ±5Q
typ
= 100 at 930 MHz
L8 ±10 Q
typ
= 65 at 310 MHz
L10, L11 ±10 Q
typ
= 150 at 930 MHz
Resistors
R1 to R4 ±2TC=(0±200) × 10−6/K;
Capacitors
C1, C2, C7, C8, C9, C15 ±5TC=(0±30) × 10−6/K; tan δ≤30 × 10−4at 1 MHz
C3, C6, C12 − TC = (0 ±200) × 10
−6
/K; tan δ≤30 × 10−4at 1 MHz
C4, C5, C14, C19 ±10 TC = (0 ±30) × 10
−6
/K; tan δ≤10 × 10−4at 1 MHz
C13 ±20
1996 Jan 15 13
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
PINNING (LQFP32)
SYMBOL PIN DESCRIPTION
TS 1 test switch; connection to ground
for normal operation
BLI 2 battery LOW indicator output
DO 3 data output
RE 4 receiver enable input
TPI 5 IF test point; I channel
TPQ 6 IF test point; Q channel
VI1RF 7 pre-amplifier RF input 1
VI2RF 8 pre-amplifier RF input 2
n.c. 9 not connected
RRFA 10 external emitter resistor for
pre-amplifier
GND1 11 ground 1 (0 V)
VO2RF 12 pre-amplifier RF output 2
VO1RF 13 pre-amplifier RF output 1
V
P
14 supply voltage
VI2MI 15 I channel mixer input 2
VI1MI 16 I channel mixer input 1
n.c. 17 not connected
VI1MQ 18 Q channel mixer input 1
VI2MQ 19 Q channel mixer input 2
GND2 20 ground 2 (0 V)
COM 21 gyrator filter resistor; common line
RGYR 22 gyrator filter resistor
n.c. 23 not connected
VO1MUL 24 frequency multiplier output 1
VO2MUL 25 frequency multiplier output 2
RMUL 26 external emitter resistor for
frequency multiplier
TDC 27 DC test point; no external
connection for normal operation
OSC 28 oscillator collector
n.c. 29 not connected
GND3 30 ground 3 (0 V)
OSB 31 oscillator base; crystal input
OSE 32 oscillator emitter
Fig.7 Pin configuration; LQFP32.
handbook, halfpage
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
TS
BLI
DO
RE
TPI
TPQ
VI1RF
VI2RF
n.c.
RRFA
GND1
VO2RF
VO1RF
V
P
VI2MI
VI1MI
VO1MUL
n.c.
RGYR
COM
GND2
VI2MQ
VI1MQ
OSE
OSB
GND3
n.c.
OSC
TDC
RMUL
VO2MUL
n.c.
UAA2080H
MLC706
1996 Jan 15 14
Philips Semiconductors Product specification
Advanced pager receiver UAA2080
PINNING (SO28)
SYMBOL PIN DESCRIPTION
TPI 1 IF test point; I channel
TPQ 2 IF test point; Q channel
VI1RF 3 pre-amplifier RF input 1
VI2RF 4 pre-amplifier RF input 2
RRFA 5 external emitter resistor for
pre-amplifier
GND1 6 ground 1 (0 V)
VO2RF 7 pre-amplifier RF output 2
VO1RF 8 pre-amplifier RF output 1
V
P
9 supply voltage
VI2MI 10 I channel mixer input 2
VI1MI 11 I channel mixer input 1
VI1MQ 12 Q channel mixer input 1
VI2MQ 13 Q channel mixer input 2
GND2 14 ground 2 (0 V)
COM 15 gyrator filter resistor; common line
RGYR 16 gyrator filter resistor
VO1MUL 17 frequency multiplier output 1
VO2MUL 18 frequency multiplier output 2
RMUL 19 external emitter resistor for frequency
multiplier
TDC 20 DC test point; no external connection
for normal operation
OSC 21 oscillator collector
GND3 22 ground 3 (0 V)
OSB 23 oscillator base; crystal input
OSE 24 oscillator emitter
TS 25 test switch; connection to ground for
normal operation
BLI 26 battery LOW indicator output
DO 27 data output
RE 28 receiver enable input
Fig.8 Pin configuration; SO28.
1
2
3
4
5
6
7
8
9
10
11
12
13
28
27
26
25
24
23
22
21
20
19
18
17
16
1514
UAA2080T
TPI
TPQ
VI1RF
VI2RF
RRFA
GND1
VO2RF
VO1RF
V
P
VI2MI
VI1MI
VI1MQ
VI2MQ
GND2
RE
DO
BLI
TS
OSE
OSB
GND3
OSC
TDC
RMUL
VO2MUL
VO1MUL
RGYR
COM
MBB972
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