Nokia 2600 服务手册
RH-59/60
Nokia Customer Care
7-System Module
18
COMPANY CONFIDENTIAL
ISSUE 1 09/2004
Copyright © 2004 Nokia. All Rights Reserved.
Baseband board clocks
Table 10: Board Clocks
Signal name
From
To
Min.
Typ.
Max.
Unit
Notes
RFCLK
MJOEL-
NER
NER
UPP
-
26
-
MHz
Active when
SLEEPX is
high
SLEEPX is
high
SLEEPCLK
UEM
UPP
-
32.768
-
KHz
Active when
VBAT is sup-
plied
VBAT is sup-
plied
RFCONV-
CLK
CLK
UPP
UEM
13
-
MHz
Active when
RF convert-
ers are
active
RF convert-
ers are
active
RFBUSCLK
UPP
MJOEL-
NER
NER
-
13
13
MHz
Only active
when bus-
enable is
active
when bus-
enable is
active
DBUSCLK
UPP (DSP)
UEM
-
13
13
MHz
Only active
when bus-
enable is
active
when bus-
enable is
active
CBUSCLK
UPP (MCU)
UEM
-
1
1.2
MHz
Only active
when bus-
enable is
active
when bus-
enable is
active
LCDCAM-
CLK
CLK
UPP
(Write)
(Read)
(Write)
(Read)
LCD
0.3
3.25
0.650
0.650
4
MHz
Only active
when bus-
enable is
active
when bus-
enable is
active