Philips UAA2080U, UAA2080T, UAA2080H Datasheet

INTEGRATED CIRCUITS

DATA SH EET

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 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

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

NAME DESCRIPTION VERSION

PACKAGE

1996 Jan 15 2

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

P

I

P

I

P(off)

P

i(ref)

P

i(mix)

V

th

T

amb

supply voltage 1.9 2.05 3.5 V
supply current 2.3 2.7 3.2 mA
stand-by current −−3µA
RF input sensitivity BER ≤3⁄

data rate 1200 bits/s; T

f

i(RF)

f

i(RF)

f

i(RF)

mixer input sensitivity BER ≤3⁄

; ±4 kHz deviation;

100

=25°C

amb

= 173 MHz −−126.5 −123.5 dBm
= 470 MHz −−124.5 −121.5 dBm
= 930 MHz −−120.0 −114.0 dBm

; f

100

= 470 MHz;

i(RF)

−−115.0 −110.0 dBm

±4 kHz deviation;

data rate 1200 bits/s; T

detection threshold for battery

amb

=25°C

1.95 2.05 2.15 V

LOW indicator
operating ambient temperature −10 − +70 °C

1996 Jan 15 3

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

BLOCK AND TEST DIAGRAMS (173 MHz)

L5

150

P

V

R3

C19

C13

C14

R7

C15

L827nH

R5

1.5 kΩ

1 nF

1.8

L6

L7

10 µF

1 nF

100 Ω

27 pF

XTAL

C16

kΩ

33 nH

33 nH

13 to

50 pF

C12

R4

TDC

C17

5 to 20 pF

2.2 kΩ

GND3

15 pF

25

2627

28

303132

R247kΩ

24

22

MULTIPLIER

FREQUENCY

P

V

LOW

BATTERY

INDICATOR

CRYSTAL

OSCILLATOR

21

low noise

amplifier Q

ACTIVE

GYRATOR

Q

LIMITER

GND2

20

FILTER

FILTER

DEMO-

ACTIVE

GYRATOR

DULATOR

19

MIXER Q

low noise

FILTER

FILTER

I

LIMITER

18

amplifier I

RF pre-amplifier

UAA2080H

MIXER I

V

BAND GAP

REFERENCE

V

ref

P

nH

C9

C7

C6

8.2 pF

8.2 pF

5 to

20 pF

C4 1 nF

MLC700

C8

8.2 pF

P

V

= 172.941 MHz.

i(RF)

handbook, full pagewidth

L4

nH

150

C11

22 pF

15 16

C10

22 pF

C5 1 nF

13 14

L3

22 nH

L2

GND1

330

22 nH

R1

Ω

12
11

10

L9

C18

1 nF

560

nH

1TS

2

BLI

3

DO

to

4

RE

decoder

1996 Jan 15 4

5

6

TPI

TPQ

IF testpoints

C1

7

8.2 pF

i(RF)

V

8

C3

5 to

20 pF

L1

43

nH

C2

8.2 pF

Fig.1 Block, test and application diagram drawn for LQFP32; f

Pins 9, 17, 23 and 29 are not connected.

1996 Jan 15 5

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

decoder

C18

1 nF

BLI

DO

RE

28

BAND GAP

REFERENCE

V

P

DEMODULATOR

V

L9

560 nH

27 26 25

ref

LIMITER

R5

1.8 kΩ
C16

13 to
50 pF

TS

LIMITER

I

RF pre-amplifier

XTAL

C17

15 pF

CRYSTAL

OSCILLATOR

BATTERY

LOW

INDICATOR

Q

GND3

222324

V

P

GYRATOR

FILTER

GYRATOR

FILTER

C15

L8

27

27

pF

nH

TDC

21

FREQUENCY

MULTIPLIER

UAA2080T
UAA2080U

ACTIVE

FILTER

ACTIVE

FILTER

R7
100 Ω

R 4

2.2 kΩ

1920

C14
1 nF

low noise

amplifier

Q

low noise

amplifier

I

C13
10 µF

R3

1.5 kΩ

L7

33 nHL633 nH

C12

5 to 20 pF

C 19
1 nF

V

47 kΩ

16 151718

P

R2

7

6

330

Ω

C2

8.2 pF

54

R1

GND1

V

P

L3

22 nH

89

L2

22 nH

C4 1 nF

handbook, full pagewidth

C5 1 nF

C6

5 to 20 pF

12 3

TPI TPQ

IF testpoints

C1

8.2 pF
V

i(RF)

C3

5 to 20 pF

L1

43 nH

Fig.2 Block, test and application diagram drawn for SO28 and naked die; f

MIXER I MIXER Q

10 11 12 13 14

10 pF 10 pF

8.2 pF

8.2 pF

C10 C11
C7
C8

= 172.941 MHz.

i(RF)

C9

8.2 pF

L4
150
nH

GND2

L5
150
nH

MLC701

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

Table 1 Tolerances of components shown in Figs 1 and 2 (notes 1 and 2)

COMPONENT

TOLERANCE

(%)

REMARK

Inductances

L1 ±5Q
L2, L3, L6, L7 ±20 Q
L4, L5 ±10 Q
L8 ±20 Q
L9 ±10 Q

= 100 at 173 MHz

min

= 50 at 173 MHz; TC = (+25 to +125) × 10−6/K

min

= 30 at 173 MHz; TC = (+25 to +125) × 10−6/K

min

= 30 at 173 MHz; TC = (+25 to +125) × 10−6/K

min

= 30 at 57 MHz; TC = (+25 to +125) × 10−6/K

min

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
C4, C5, C14, C18, C19 ±10 TC = (0 ±30) × 10
C10, C11 ±5TC=(0±30) × 10

−6

/K; tan δ≤50 × 10−4at 1 MHz

−6

/K; tan δ≤10 × 10−4at 1 MHz

−6

/K; tan δ≤21 × 10−4at 1 MHz
C13 ±20
C16 − TC = (−1700 ±500) × 10
C17 ±5TC=(0±30) × 10

−6

/K; tan δ≤50 × 10−4at 1 MHz

−6

/K; tan δ≤26 × 10−4at 1 MHz

Notes

1. Recommended crystal: f

= 57.647 MHz (crystal with 8 pF load), 3rd overtone, pullability >2.75 × 10−6/pF

XTAL

(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

= −10 to +55 °C with 25 °C reference, calibration plus aging tolerance:

amb

−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.

1996 Jan 15 6

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

BLOCK AND TEST DIAGRAMS (470 MHz)

L5

40

ref

P

nH

C9

MLC702

2.7 pF

L4

40

nH

C11

22 pF

= 469.95 MHz.

15 16

C8

C7

C10

22 pF

C6

C5 1 nF

13 14

L3

8 nH

L2

GND1

330

8 nH

R1

Ω

12
11

10

2.7 pF

6 pF

2.5 to

C4 1 nF

2.7 pF

P

V

i(RF)

handbook, full pagewidth

P

V

L6

820 Ω

10 µF

1 nF

C15

L7

1 nF

3 to

nH

XTAL

C16

kΩ

8 nH

10 pF

13 to

8 nH

50 pF

R4

TDC

C17

C12

1.2 kΩ

2.5 to 6 pF
25

2627

28

303132

GND3

15 pF

L8

R5

R3

C19

C13

C14

100

1.8

R247kΩ

22

24

MULTIPLIER

FREQUENCY

P

V

LOW

BATTERY

INDICATOR

CRYSTAL

OSCILLATOR

21

low noise

amplifier Q

ACTIVE

GYRATOR

Q

LIMITER

GND2

20

FILTER

FILTER

DEMO-

ACTIVE

GYRATOR

DULATOR

19

MIXER Q

low noise

FILTER

FILTER

I

LIMITER

18

amplifier I

RF pre-amplifier

UAA2080H

MIXER I

V

BAND GAP

REFERENCE

V

L9

C18

1 nF

560

nH

1TS

2

BLI

3

DO

to

decoder

1996 Jan 15 7

4

RE

5

6

TPI

TPQ

IF testpoints

C1

7

2.7 pF

i(RF)

V

8

C3

6 pF

2.5 to

L1

nH

C2

12.5

2.7 pF

Fig.3 Block, test and application diagram drawn for LQFP32; f

Pins 9, 17, 23 and 29 are not connected.

1996 Jan 15 8

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

decoder

C18
1 nF

BLI

DO

RE

28

BAND GAP

REFERENCE

V

P

DEMODULATOR

V

L9

560 nH

27 26 25

ref

LIMITER

R5

1.8 kΩ
C16

13 to

50 pF

TS

LIMITER

I

RF pre-amplifier

XTAL

C17

15 pF

CRYSTAL

OSCILLATOR

BATTERY

LOW

INDICATOR

Q

GND3

222324

V

P

GYRATOR

FILTER

GYRATOR

FILTER

L8
100

C15

nH

3 to
10 pF

TDC

21

FREQUENCY

MULTIPLIER

UAA2080T
UAA2080U

ACTIVE

FILTER

ACTIVE

FILTER

C14
1 nF

R 4

1.2 kΩ

1920

low noise

amplifier

Q

low noise

amplifier

I

C13
10 µF

R3
820 Ω

L7

8 nHL68 nH

C12

2.5 to 6 pF

C 19
1 nF

V

47 kΩ

16 151718

P

R2

7

6

330

Ω

C2

2.7 pF

54

R1

GND1

V

P

L3

8 nH

89

L2

8 nH

C4 1 nF

handbook, full pagewidth

C5 1 nF

2.5 to 6 pF

12 3

TPI TPQ

IF testpoints

C1

2.7 pF
V

i(RF)

C3

2.5 to 6 pF
L1

12.5 nH

Fig.4 Block, test and application diagram drawn for SO28 and naked die; f

2.7 pF

C6

2.7 pF

MIXER I MIXER Q

10 11 12 13 14

22 pF 22 pF

C10 C11
C7
C8

= 469.95 MHz.

i(RF)

C9

2.7 pF

L4
40
nH

GND2

L5
40
nH

MLC703

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

L5

40

P

V

L6

820 Ω

1 nF

8 nH

C12

L7

8 nH

2.5 to 6 pF
25

R3

C19

R247kΩ

GND2

21

22

24

20

18

19

UAA2080H

MIXER Q

nH

L4

40

nH

C11

22 pF

MLC704

C23

2.5 to 6 pF

L10

12.5 nH

L8

R5

C13

C14

100

1.8

C18

10 µF

1 nF

C15

1 nF

3 to

nH

XTAL

C16

kΩ

10 pF

13 to

L9

50 pF

560

R4

nH

TDC

C17

1.2 kΩ

GND3

15 pF

2627

28

303132

MULTIPLIER

FREQUENCY

P

V

LOW

BATTERY

INDICATOR

CRYSTAL

OSCILLATOR

1TS

low noise

amplifier Q

ACTIVE

GYRATOR

Q

LIMITER

FILTER

FILTER

2

BLI

DEMO-

DULATOR

3

DO

ACTIVE

GYRATOR

4

RE

FILTER

FILTER

LIMITER

5

TPI

low noise

amplifier I

I

6

TPQ

MIXER I

V

BAND GAP

REFERENCE

V

RF pre-amplifier

7

8

ref

P

15 16

C22

C10

C21

22 pF

C5

13 14

12
1110

GND1

i(RF)

V

5.6 pF

1 nF

5.6 pF

P

V

= 469.95 MHz.

i(RF)

handbook, full pagewidth

Fig.5 Mixer input sensitivity test circuit; f

to

1996 Jan 15 9

IF testpoints

decoder

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

Table 2 Tolerances of components shown in Figs 3, 4 and 5 (notes 1 and 2)

COMPONENT

TOLERANCE

(%)

REMARK

Inductances

L1, L10 ±5Q
L2, L3, L6, L7 ±20 Q
L4, L5 ±10 Q
L8 ±10 Q
L9 ±10 Q

= 145 at 470 MHz

min

= 50 at 470 MHz; TC = (+25 to +125) × 10−6/K

min

= 40 at 470 MHz; TC = (+25 to +125) × 10−6/K

min

= 30 at 156 MHz; TC = (+25 to +125) × 10−6/K

min

= 40 at 78 MHz; TC = (+25 to +125) × 10−6/K

min

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
C4, C5, C14, C18 to C22 ±10 TC = (0 ±30) × 10
C10, C11 ±5TC=(0±30) × 10

−6

/K; tan δ≤50 × 10−4at 1 MHz

−6

/K; tan δ≤10 × 10−4 at 1 MHz

−6

/K; tan δ≤21 × 10−4 at 1 MHz
C13 ±20
C16 − TC = (−1700 ±500) × 10
C17 ±5TC=(0±30) × 10

−6

/K; tan δ≤50 × 10−4at 1 MHz

−6

/K; tan δ≤26 × 10−4at 1 MHz

Notes

1. Recommended crystal: f

= 78.325 MHz (crystal with 8 pF load), 3rd overtone, pullability >2.75 × 10−6/pF

XTAL

(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

= −10 to +55 °C with 25 °C reference, calibration plus aging tolerance:

amb

−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.

1996 Jan 15 10

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

BLOCK AND TEST DIAGRAM (930 MHz)

L5

12.5

P

V

L6

R3

330 Ω

3 nH

C12

3 nH

1.7 to 3 pF
25

L7

R247kΩ

GND2

24

21

22

20

18

19

nH

L4

nH

12.5

MLC705

C13

C14

L8

4.7 µF

150

pF

33 nH

C15

C19

150 pF

3.3 pF

i(OSC)

V

R4

TDC

390 Ω

2627

28

303132

GND3

MULTIPLIER

FREQUENCY

P

V

LOW

BATTERY

CRYSTAL

OSCILLATOR

1TS

low noise

amplifier Q

ACTIVE

INDICATOR

GYRATOR

Q

LIMITER

FILTER

FILTER

2

DEMO-

DULATOR

3

ACTIVE

GYRATOR

4

5

MIXER Q

low noise

FILTER

FILTER

I

LIMITER

6

amplifier I

RF pre-amplifier

7

UAA2080H

MIXER I

V

BAND GAP

REFERENCE

V

8

ref

P

C9

1.2 pF

L11

5 nH

15 16

C8

C7

L10

C5

5 nH

150 pF

C6

1.5 pF

3 pF

1.7 to

1.5 pF

= 930.50 MHz.

i(RF)

13 14

L3

L2

12
11

GND1

R1

10

120

3.5 nH

3.5 nH

Ω

C4 150 pF

P

V

handbook, full pagewidth

Fig.6 Test circuit; f

DO

BLI

to

1996 Jan 15 11

RE

decoder

TPI

TPQ

IF testpoints

C1

1.2 pF

i(RF)

V

C3

3 pF

1.7 to

5

L1

nH

C2

1.0 pF

Pins 9, 17, 23 and 29 are not connected.

Philips Semiconductors Product specification

Advanced pager receiver UAA2080

Table 3 Tolerances of components shown in Fig.6 (note 1)

COMPONENT

TOLERANCE

(%)

REMARK

Inductances

L1 ±10 Q

= 150 at 930 MHz

typ

L2, L3, L6, L7 − microstrip inductor
L4, L5 ±5Q
L8 ±10 Q
L10, L11 ±10 Q

= 100 at 930 MHz

typ

= 65 at 310 MHz

typ

= 150 at 930 MHz

typ

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
C4, C5, C14, C19 ±10 TC = (0 ±30) × 10

−6

/K; tan δ≤30 × 10−4at 1 MHz

−6

/K; tan δ≤10 × 10−4at 1 MHz

C13 ±20

Note

1. The external oscillator signal V

has a frequency of f

i(OSC)

= 310.1667 MHz.

OSC

1996 Jan 15 12

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

handbook, halfpage

1

TS

2

BLI

3

DO

4

RE

5

TPI

6

TPQ

7

VI1RF

8

VI2RF

OSE
32

OSB
31

GND3

30

n.c.

29

OSC
28

TDC
27

RMUL
26

VO2MUL
25

UAA2080H

9

10

11

12

13

14

15

16

P

VO2RF

VO1RF

V

VI2MI

VI1MI

n.c.

RRFA

GND1

Fig.7 Pin configuration; LQFP32.

24
23
22
21

20
19
18
17

MLC706

VO1MUL

n.c.
RGYR
COM
GND2
VI2MQ
VI1MQ
n.c.

1996 Jan 15 13

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

VO2RF
VO1RF

VI1MQ
VI2MQ

Fig.8 Pin configuration; SO28.

TPI

TPQ
VI1RF
VI2RF

RRFA
GND1

V

VI2MI
VI1MI

GND2

1
2
3
4
5
6
7

UAA2080T

8
9

P

10
11
12
13

MBB972

28
27
26
25
24
23
22
21

20
19
18
17
16
1514

RE
DO
BLI
TS
OSE
OSB
GND3
OSC
TDC
RMUL
VO2MUL
VO1MUL
RGYR
COM

1996 Jan 15 14