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参数资料
| 型号： | LMX2335LTMX/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16 |
| 封装： | PLASTIC, TSSOP-16 |
| 文件页数： | 4/24页 |
| 文件大小： | 631K |
| 代理商： | LMX2335LTMX/NOPB |
Functional Description
The simplified block diagram below shows the 22-bit data register, two 15-bit R Counters and two 18-bit N Counters (intermediate
latches are not shown). The data stream is clocked (on the rising edge of Clock) into the DATA register, MSB first. The data stored
in the shift register is loaded into one of the 4 appropriate latches on the rising edge of LE. The last two bits are the Control Bits.
The DATA is transferred into the counters as follows:
Control Bits
DATA Location
C1
C2
0
RF2 R Counter
0
1
RF1 R Counter
1
0
RF2 N Counter
1
RF1 N Counter
01280705
PROGRAMMABLE REFERENCE DIVIDERS (RF1 AND RF2 R COUNTERS)
If the Control Bits are 00 or 01 (00 for RF2 and 01 for RF1) data is transferred from the 22-bit shift register into a latch which sets
the 15-bit R Counter. Serial data format is shown below.
01280706
15-BIT PROGRAMMABLE REFERENCE DIVIDER RATIO (R COUNTER)
Divide
RRRRRRRRRRRRRR
R
Ratio
15 14 13 12 11 10
98765432
1
3
00000000000001
1
4
00000000000010
0
32767
11111111111111
1
Notes:
Divide ratios less than 3 are prohibited.
Divide ratio: 3 to 32767
R1 to R15: These bits select the divide ratio of the programmable reference divider.
Data is shifted in MSB first.
LMX2335L/LMX2336L
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2335M | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2335MX | 功能描述:IC FREQ SYNTH DUAL 1.1GHZ 16SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:PLLatinum™ 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LMX2335TM | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2335TMX | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LMX2335U | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications |
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