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參數(shù)資料
| 型號： | SP5611 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 1.3GHz Bidirectional IIC Bus Controlled Synthesiser(1.3GHz 雙向IIC總線控制的頻率合成器) |
| 中文描述： | 1.3GHz的雙向IIC總線控制合成器（1.3GHz的雙向國際進(jìn)口總線控制的頻率合成器） |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 222K |
| 代理商： | SP5611 |
10
SP5611
Normal operation, reference divider ratio = 1024
Normal operation, reference divider ratio = 512
Charge pump source (down), FL set to 0
Charge pump sink (up), FL set to 1
Port P7 = F
PD
/2
Port P7 = F
PD
, P6 = F
COMP
Charge pump disable, reference divider ratio = 512
Varactor line disable, reference divider ratio = 512
Charge pump and varactor linedisable, reference divider ratio = 512
Operation mode description
Table 5 Operation modes
Hex code (byte 4)
CP high mode
CP low mode
CC
CE
E2
E6
EA
EE
DE
CF
DF
8C
8E
A2
A6
AA
AE
9E
8F
9F
TEST MODES
As explained in the functional description, The SP5611 can
be programmed into a numb er of test modes. These are invoked
by programming Hex codes into byte 4, those most commonly
used being shown in Table 6.
Other codes will also apply due to don’t care conditions, which
are assumed to be 1 in the Table.
NOTE:
When looking at F
or F
signals from ports P7 and P6. byte
should be sent twice, first to set the desired reference division
ratio then to switch on the chosen test mode.
The pulses can then be measured by simply connecting an
oscilloscope or counter to the relevant output pin on the test board.
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