- 您現在的位置：買賣IC網 > PDF目錄361044 > LMX2434TMX (NATIONAL SEMICONDUCTOR CORP) PLLatinum Dual High Frequency Synthesizer for RF Personal Communications PDF資料下載
參數資料
| 型號： | LMX2434TMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 5000 MHz, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數： | 41/49頁 |
| 文件大小： | 943K |
| 代理商： | LMX2434TMX |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁
2.0 Programming Description
(Continued)
2.5.1.2 RF_A[4:0] - LMX2434 RF Synthesizer Swallow Counter (A Counter) (R1[7:3])
The LMX2434 A counter is a 5-bit swallow counter used in the programmable feedback divider. The RF_A control word can be
programmed to values ranging from 0 to 31.
Divide Ratio
LMX2434
RF_A[4:0]
2
0
0
1
4
0
0
1
3
0
0
1
1
0
0
1
0
0
1
1
0
1
31
2.5.2 LMX243x RF Synthesizer Programmable Binary Counter
2.5.2.1 RF_B[14:0] - LMX2430/33 RF Synthesizer Programmable Binary Counter (B Counter) (R1[21:7])
The RF_B control word is used to setup the RF synthesizer’s B counter. For both the LMX2430 and LMX2433, the B counter is
a 15-bit programmable binary counter used in the programmable feedback divider. The RF_B control word can be programmed
to values ranging from 3 to 32767. Divide ratios less than 3 are prohibited.
Divide
Ratio
LMX2430/33
RF_B[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
2.5.2.2 RF_B[13:0] - LMX2434 RF Synthesizer Programmable Binary Counter (B Counter) (R1[21:8])
The LMX2434 B counter is a 14-bit programmable binary counter used in the programmable feedback divider. The RF_B control
word can be programmed to values ranging from 3 to 16383. Divide ratios less than 3 are prohibited.
Divide
Ratio
LMX2434
RF_B[13:0]
7
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
16383
2.5.3 LMX243x RF Synthesizer Prescaler Select
2.5.3.1 RF_P - LMX2430/33 RF Synthesizer Prescaler Select (R1[22])
Both the LMX2430 and LMX2433 RF synthesizers utilize a selectable dual modulus prescaler. An 8/9 or a 16/17 prescale ratio
can be selected.
Control Bit
Register Location
Description
Function
0
1
RF_P
R1[22]
LMX2430/33
RF Prescaler Select
8/9 Prescaler
Selected
16/17 Prescaler
Selected
2.5.3.2 RF_P - LMX2434 RF Synthesizer Prescaler Select (R1[22])
The LMX2434 RF synthesizer utilizes a selectable dual modulus prescaler. A 16/17 or a 32/33 prescale ratio can be selected.
Control Bit
Register Location
Description
Function
0
1
RF_P
R1[22]
LMX2434
RF Prescaler Select
16/17 Prescaler
Selected
32/33 Prescaler
Selected
L
www.national.com
41
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| LMX2433SLEX | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
| LMX2434SLEX | PLLatinum Dual High Frequency Synthesizer for RF Personal Communications |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2434TMX/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 |
| LMX2470 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:2.6 GHz Delta-Sigma Fractional-N PLL with 800 MHz Integer-N PLL |
| LMX2470EVAL | 功能描述:時鐘和定時器開發工具 LMX2470 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 |
| LMX2470SLEX | 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 |
| LMX2470SLEX/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 |
發布緊急采購，3分鐘左右您將得到回復。