Motorola CDM1550-LS+ - Modifying the Phone List

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200 MHz Schematic Diagrams, Overlays, and Parts Lists
4-17
OR>
4.97VDC
4. 54VDC
VSF ~~--- -. ----- ---- ----- -- ----- - -- -- ------ -------- - ---- ----------<:J wF
TXI~
PREBC
M >l ~~.: ----
1000pFr·- .. 7
, ..
R3317 ~
<;;, 1 ~ -------------- 1!:------ · - ~ - ~- .~ -~ · _[ ___ _
QFS640
$ R3304
l 1K
0-15dBrn <n
NU
I
C>311
U3301
"""
t-- ---+-- --
1
:;.!
0
1 ~ ou t
rut .O ln
J-
]
, ..
-=- 01ull'
I
CUS4
I. onuF
4. 52VDC (R)
OVDC (1)
~-------~ · 2 := ro ~ 7 ~ d = B ~m ~-- ---------------- -------- ------------ ----- --------rn~-- t- -~~~ ----<~ WF
L3!11 1
OVDC(R)
4.0 1YDC rn
100nH R~3
C3311
I u~
1.53VDC (R)
ov oc ,.
O.U2VDC(R)
OVDC {T
R3351
20K
i
LU.O
1uH
L >ill
""'
C33o41
10()0pF
II
Rl341
no
1 --e -------
<:ml
.01uF
......
20K
f
RU151
11K
J-
I
. ....
.01UF
-1 .. ~
""''
"
1
LU.1
8nH
- CH52
.022uF
OVDC(I!)
I , ~ 7VDC . ~m
ems
. 022uF
1uH
Ctl42
NU
I
....
1
03~1
452VDC (R)
2.62VDC {T)
2 !>-11VDC
r-v-n-L__. -
"NY---
L ... 4 ,..,,.,
'""
'· "'
0200pF
I .....
-1
C33oi7
I NU
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co ...
I 1000pF
1/( JTAL
CJ veoot .. ,
VC081A8_2
w. ~r-~rvv--- ~ --J ~Ar-- ------ ---------- ---------- -------------- ------ ---- --------- ~-
VC OMQO
, .. .
... ...
...
I
om•
-=- 1svm
Figure 4-13. 200 MHz Voltage Controlled Oscillator Schematic Diagram