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參數資料
| 型號： | LMX2434 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLLatinum雙高頻率合成射頻個人通信 |
| 文件頁數： | 43/49頁 |
| 文件大小： | 943K |
| 代理商： | LMX2434 |
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2.0 Programming Description
(Continued)
2.7 R3 REGISTER
The R3 register contains the IF_R, IF_CPP, IF_CPG, IF_CPT, and IF_RST control words, in addition to two of the four bits that
compose the MUX control word. The detailed descriptions and programming information for each control word is discussed in the
following sections.
Reg
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DATA[20:0] FIELD
ADDRESS
[2:0]
FIELD
R3
MUX[1:0]
IF_
RST
IF_
CPT
IF_
CPG
IF_
CPP
IF_R[14:0]
0
1
1
2.7.1 IF_R[14:0] - IF Synthesizer Programmable Reference Divider (R Counter) (R3[17:3])
The IF reference divider (IF_R) can be programmed to support divide ratios from 3 to 32767. Divide ratios less than 3 are
prohibited.
Divide Ratio
IF_R[14:0]
7
0
0
1
14
0
0
1
13
0
0
1
12
0
0
1
11
0
0
1
10
0
0
1
9
0
0
1
8
0
0
1
6
0
0
1
5
0
0
1
4
0
0
1
3
0
0
1
2
0
1
1
1
1
0
1
0
1
0
1
3
4
32767
2.7.2 IF_CPP - IF Synthesizer Phase Detector Polarity (R3[18])
The IF_CPP bit is used to control the IF synthesizer’s phase/ frequency detector polarity based on the VCO tuning characteristics.
Control Bit
Register Location
Description
Function
0
1
IF_CPP
R3[18]
IF Phase/ Frequency
Detector Polarity
IF VCO Negative
Tuning
Characteristics
IF VCO Positive
Tuning
Characteristics
IF VCO Characteristics
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相關PDF資料 |
PDF描述 |
|---|---|
| LMX2434TM | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| LMX2434TMX | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| LMX2430SLEX | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| LMX2430TM | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| LMX2430TMX | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2434EVAL | 功能描述:時鐘和定時器開發工具 LMX2434 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| LMX2434EVAL/NOPB | 功能描述:時鐘和定時器開發工具 LMX2434 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| LMX2434SLEX | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Dual 500MHz to 5000MHz 20-Pin LAM UCSP T/R |
| LMX2434SLEX/NOPB | 功能描述:鎖相環 - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| LMX2434TM | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Dual 500MHz to 5000MHz 20-Pin TSSOP Rail |
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