參數(shù)資料
型號: LMX2487ESQX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: 7.5 GHz High Performance Delta-Sigma Low Power Dual PLLatinum⑩ Frequency Synthesizers with 3.0 GHz Integer PLL
中文描述: PLL FREQUENCY SYNTHESIZER, 7500 MHz, PQCC24
封裝: 4 X 4 MM, 0.80 MM HEIGHT, LLP-24
文件頁數(shù): 30/38頁
文件大?。?/td> 419K
代理商: LMX2487ESQX
Register
R4
R5
R6
R7
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[19:0]
R4 Must be programmed manually.
0
0
0
0
0
0
0
0
0
0
0
0
C3 C2 C1 C0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1
1
1
0
1
1
1
1
This corresponds to the following bit settings.
Register
Bit Location
R4[23]
R4[17:16]
R4[15:16]
R4[23]
R4[23]
Bit Name
ATPU
DITH
FM
OSC_2X
OSC_OUT
Bit Description
Autopowerup
Dithering
Modulator Order
Oscillator Doubler
OSCout Pin Enable
IF Charge Pump
Polarity
RF Charge Pump
Polarity
IF PLL Prescaler
Ftest/LD Output
Extended Fractional
Denominator
Extended Fractional
Numerator
Cycle Slip
Reduction
Fastlock Charge
Pump Current
RF Timeout Counter
Bit Value
0
2
3
0
0
Bit State
Disabled
Strong
3rd Order
Disabled
Disabled
R4
R4[23]
IF_CPP
1
Positive
R4[23]
RF_CPP
1
Positive
R4[23]
R4[7:4]
IF_P
MUX
1
0
16/17
Disabled
R5
R5[23:14]
RF_FD[21:12]
0
Disabled
R5[13:4]
RF_FN[21:12]
0
Disabled
R6
R6[23:22]
CSR
0
Disabled
R6[21:18]
RF_CPF
0
Disabled
R6[17:4]
RF_TOC
0
Disabled
Disabled
R7
R7[13]
DIV4
Lock Detect
Adjustment
0
(Fcomp
20 MHz)
R7[7]
IF_RST
IF PLL Counter
Reset
RF PLL Counter
Reset
IF PLL Tri-State
RF PLL Tri-State
0
Disabled
R7[6]
RF_RST
0
Disabled
R7[5]
R7[4]
IF_CPT
RF_CPT
0
0
Disabled
Disabled
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMX2487ESQX/NOPB 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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
LMX2487SQ 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3.0 GHz - 6.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum? Frequency Synthesizers with 3.0 GHz Integer PLL
LMX2487SQ/NOPB 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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
LMX2487SQX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3.0 GHz - 6.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum? Frequency Synthesizers with 3.0 GHz Integer PLL
LMX2487SQX/NOPB 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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