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參數資料
| 型號： | LMX2531LQ1500EX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 80 MHz, QCC36 |
| 封裝： | 6 X 6 MM, 0.8 MM, LCC-36 |
| 文件頁數： | 12/24頁 |
| 文件大?。?/td> | 458K |
| 代理商： | LMX2531LQ1500EX |
Connection Diagram
20195002
Pin Descriptions
Pin #
Pin Name
I/O
Description
1
VccDIG
-
Power Supply for digital LDO circuitry. Input may range from 2.8 - 3.2 V. Bypass capacitors should be
placed as close as possible to this pin and ground.
3
GND
-
Ground
2,4,5,7,
12, 13,
29, 35
NC
-
No Connect.
6
VregBUF
-
Internally regulated voltage for the VCO buffer circuitry. Connect to ground with a capacitor.
8
DATA
I
MICROWIRE serial data input. High impedance CMOS input. This pin must not exceed 2.75V. Data is
clocked in MSB first. The last bits clocked in form the control or register select bits.
9
CLK
I
MICROWIRE clock input. High impedance CMOS input. This pin must not exceed 2.75V. Data is clocked
into the shift register on the rising edge.
10
LE
I
MICROWIRE Latch Enable input. High impedance CMOS input. This pin must not exceed 2.75V. Data
stored in the shift register is loaded into the selected latch register when LE goes HIGH.
11
CE
I
Chip Enable Input. High impedance CMOS input. This pin must not exceed 2.75V. When CE is brought
high the LMX2531LQ1500E is powered up corresponding to the internal power control bits. It is
necessary to reprogram the R0 register to get the part to re-lock.
14, 15
NC
-
No Connect. Do NOT ground.
16
VccVCO
-
Power Supply for VCO regulator circuitry. Input may range from 2.8 - 3.2 V. Bypass capacitors should
be placed as close as possible to this pin and ground.
17
VregVCO
-
Internally regulated voltage for VCO circuitry. Not intended to drive an external load. Connect to ground
with a capacitor and some series resistance.
www.national.com
2
LMX2531LQ1500E
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2531LQ1515E | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 1450MHz to 1580MHz 36-Pin LLP EP T/R 制造商:Texas Instruments 功能描述:CLOCK SYNTHESIZER 1.6GHZ 36LLP |
| LMX2531LQ1515E/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 |
| LMX2531LQ1570E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| LMX2531LQ1570E/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 |
| LMX2531LQ1650E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO |
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