Page 18 of 23
DWG ID: 181-0101-01
Date: 2003-08-12
VOLTAGE
ITEM
TERMINAL
TX
RX
COMMENTS
IC108
PLL Synthesizer IC
1
0
0
2
4.9
4.9
3
6.1
6.1
4
1 to 5
1 to 5
Tuning V, depends on freq
5
0
0
6
1.6
1.6
7
1.6
1.6
8
0
0
9
2.4
2.4
10
—
—
No connect
11
5
5
Lock detect, 0 when unlocked
12
5
5
13
0
0
14
0
0
Data, pulses high while being loaded
15
0
0
Data, pulses high while being loaded
16
0
0
Data, pulses high while being loaded
17
0
0
18
—
—
No connect
19
—
—
No connect
20
0
0
21
—
—
No connect
22
5
5
23
5
5
24
—
—
No connect
6.3
Active Component Voltage Chart for DTX-154 RF CCA
Note:
All voltages measured with reference to negative supply input (case ground).
VOLTAGE
ITEM
TERMINAL
TX
RX
COMMENTS
Q101
RX RF Preamp
E
0
0
B
0
0.7
C
0
2.5
Q102
RX 1
st
IF Amp
E
0
0
B
0
0.7
C
0
3.5