U401 Anguss Ic - Motorola StarTAC 3000 Service Manual

StarTAC 3000 :
Channel: 385
TX Freq: 836.55MHz
TX Power Level 2
RX Input Freq: 881.55MHz
RX Input: -20dBm
VOLTAGE SUPPLIES
Colored boxes represent the area in
which the components are placed.
R505
page B-8
TX VCO STEER
HVCC
P800
PHASE MOD
U700-30 30
page B-18
DATA
U800-19
2
page B-19
CLOCK
U800-18
4
page B-19
SYNTH-EN
8
U700-23
page B-18
RX DISABLE
U700-18 17
page B-18
4.2 MHZ
U700-56, U201-21 38
page B-18 page B-6
RESET
U601-16
11
page B-11
DREG
3.27V
2.79V
REF 2.75V
4 3 2
page B-12
16.8 MHZ
Y401
5 6 7
HVCC OUT
REF 4.75V
page B-12
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distribution strictly prohibited without prior written
consent from Motorola and must be returned upon
Motorola's request.
Motorola Confidential Proprietary

U401 Anguss IC

C421
2.7V
37
.00V
38
2.7V
39
.00V
40
R408 NC 41
NC 42
43
R499
2.7V
44
2.7V
45
46
C499 1.5V
47
REF OSC AFC
48
1.59V
1
C431
B
8
430 MV. P.P.
C420
A
R405
36 35 34 33 32 31 30 29 28 27 26 25
NC
DAT
24
PH DET PROG
CLK
23 2.5V
EN
22 2.5V
21
2.76V
U401
20
2.76V
19 2.66V
REG
18 2.75V
CONT
17 .00V
16 2.7V
15 3.35V
14 2.7V
PH DET
PROG
13 2.75V
AFC
1 2 3 4 5 6 7 8 9 10 11 12
C404
S1
TX SFV
TX VCO FEEDBACK
Q402
C413
C428
RX SFV
991 385 799
Channel
A 1.34V 1.78V 2.24V
991 385 799
Channel
B
1.24V 1.69V 2.1V
RX VCO FEEDBACK
RX VCO STEER
D REG
L502
page B-8
C530
page B-8
A REG
B+
Q401
D REG
2.8V
REF 2.75V
L303
page B-5
C313
page B-5
R403
page B-5