參數(shù)資料
型號: LMX2532
廠商: National Semiconductor Corporation
英文描述: PLLatinum Frequency Synthesizer System with Integrated VCOs
中文描述: PLLatinum頻率合成系統(tǒng)的集成和VCO
文件頁數(shù): 14/18頁
文件大?。?/td> 189K
代理商: LMX2532
Programming Description
(Continued)
R2 REGISTER
The R2 Register address bits (R2 [1:0]) are “10”.
The IF_CUR [1:0] bits program the IF charge pump current. Considering the external IF VCO and loop filter, the user can select
the amount of IF charge pump current to be 100μA, 200μA, 300μA or 800μA.
R2 REGISTER
R
MSB
23
SHIFT REGISTER BIT LOCATION
16
15
14
13
Data Field
LSB
0
22
21
20
19
18
17
12
11
10
9
8
7
6
5
4
3
2
1
Address
Field
1
0
R2
(Default)
IF_
CUR[1:0]
0
0
1
0
0
1
1
1
0
1
1
0
1
0
1
0
0
0
1
0
Name
IF_CUR [1:0]
Functions
IF Charge Pump Current
00 = 100 μA
01 = 200 μA
10 = 300 μA
11 = 800 μA
L
www.national.com
14
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