uaa2080 NXP Semiconductors, uaa2080 Datasheet - Page 8

• Manufacturer Part Number: uaa2080
• Description: Advanced Pager Receiver
• Manufacturer: NXP Semiconductors

decoder
IF testpoints
TPI
REFERENCE
V
1
BAND GAP
P
Fig.4 Block, test and application diagram drawn for SO28 and naked die; f
BLI
RE
DO
TPQ
2
28
2.7 pF
DEMODULATOR
V ref
1 nF
C18
C1
V i(RF)
27
560 nH
3
2.5 to 6 pF
12.5 nH
C3
L9
26
LIMITER
L1
R5
1.8 k
I
13 to
50 pF
TS
25
C16
4
LIMITER
RF pre-amplifier
C2
2.7 pF
330
OSCILLATOR
Q
INDICATOR
CRYSTAL
BATTERY
24
15 pF
LOW
C17
XTAL
5
R1
V
GND1
P
GYRATOR
GYRATOR
23
FILTER
FILTER
6
V P
GND3
22
7
8 nH
L3
L8
100
nH
C4
21
UAA2080T
UAA2080U
8 nH
L2
ACTIVE
ACTIVE
TDC
FILTER
FILTER
1 nF
8
C15
3 to
10 pF
20
FREQUENCY
MULTIPLIER
C5
2.5 to 6 pF
9
19
R 4
1.2 k
C14
1 nF
low noise
low noise
1 nF
amplifier
amplifier
C6
Q
I
C13
10 F
2.7 pF
2.7 pF
22 pF
18
C7
C8
8 nH
i(RF)
L7
2.5 to 6 pF
MIXER I
C10 C11
C12
10
= 469.95 MHz.
R3
820
8 nH
L6
11
22 pF
17
C9
2.7 pF
MIXER Q
12
L4
40
nH
C 19
1 nF
16
47 k
V
R2
13
P
L5
40
nH
MLC703
GND2
14
15