2005-8 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0053-05 │ UltraCMOS RFIC So" />
參數(shù)資料
型號(hào)： 3341-05
廠商： Peregrine Semiconductor
文件頁(yè)數(shù)： 15/16頁(yè)
文件大小： 0K
描述： EVAL KIT FOR PE3341
標(biāo)準(zhǔn)包裝： 1
系列： UltraCMOS™
類型： 整數(shù) N/PLL
頻率： 2.7GHz
適用于相關(guān)產(chǎn)品： PE3341
已供物品： 板，線纜，文檔，軟件
其它名稱： 3341-05-ND
3341-5PER
PE3341EK
Product Specification
PE3341
Page 8 of 17
2005-8 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0053-05
│ UltraCMOS RFIC Solutions
Frequency Registers
There are three independent frequency registers,
any one of which can be selected to control the
operation of the device. Each register is 20 bits in
length, and provides data to the three counters
and the prescaler bypass control. Table 8 defines
these bit assignments.
Primary Register
The Primary Register is a serial shift register,
loaded through the Serial Data Port. It can be
selected to control the PLL as shown in Table 9.
It is not buffered, thus when this register is
selected to control the PLL, its data is
continuously presented to the counters during a
load operation.
This register is also used to perform a parallel
load of data into the Secondary Register.
Secondary Register
The Secondary Register is a parallel-load register.
Data is copied into this register from the Primary
Register on the rising edge of S_WR, according to
the timing diagrams shown in Figure 3. It can be
selected to control the PLL as shown in Table 9.
EE Register
The EE Register is a serial/parallel-in, serial/
parallel-out register, and provides the interface to
the EEPROM. It is loaded from the Serial Data
Port to provide the parallel data source when
writing to the EEPROM. It also accepts stored
data from the EEPROM for controlling the PLL.
Serial loading of the EE Register is done as
shown in Table 7 and Figure 4. Parallel loading of
the register from EEPROM is accomplished as
shown in Table 10.
The EE register can be selected to control the PLL
as shown in Table 9. Note that it cannot be
selected to control the PLL using data that has
been loaded serially. This is because it must first
go through one of the two conditions in Table 10
that causes the EEPROM data to be copied into
the EE Register. The effect of this is that only
EEPROM data is used when the EE Register is
selected.
The contents of the EE register can also be
shifted out serially through the Dout pin. This
mode is enabled by appropriately programming
the Enhancement Register. In this mode, data
exits the register on the rising edge of Clock, LSB
(B0) first, and is replaced with the data present on
the Data input pin. Tables 7 and 12 define the
settings required to enable this mode.
Table 9. Primary / Secondary / EE Register Bit Assignments
R5
R4
M8
M7
PB
M6
M5
M4
M3
M2
M1
M0
R3
R2
R1
R0
A3
A2
A1
A0
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
Table 10. Frequency Register Selection
EESel
FSel
EELoad
Register Selected
0
1
0
Primary Register
0
Secondary Register
1
X
0
EE Register
Table 11. EE Register Load from EEPROM
EESel
EELoad
Function
_
0
EEPROM
→ EE Register
1
\_
EEPROM
→ EE Register
Obsolete
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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