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参数资料
| 型号： | LMX2332LTM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20 |
| 封装： | 0.173 INCH, TSSOP-20 |
| 文件页数： | 6/26页 |
| 文件大小： | 631K |
| 代理商： | LMX2332LTM/NOPB |
Functional Description (Continued)
01280608
7-BIT SWALLOW COUNTER DIVIDE RATIO (A COUNTER)
RF
Divide
N
7
N
6
N
5
N
4
N
3
N
2
N
1
Ratio
A
0
000000
0
1
000000
1
127
111111
1
Notes: Divide ratio: 0 to 127
B
≥ A
IF
Divide
N
7
N
6
N
5
N
4
N
3
N
2
N
1
Ratio
A
0
XXX
0
1
XXX
0
1
15
XXX
1
X = DON’T CARE condition
11-BIT PROGRAMMABLE COUNTER DIVIDE RATIO (B COUNTER)
Divide
N
18
N
17
N
16
N
15
N
14
N
13
N
12
N
11
N
10
N
9
N
8
Ratio
B
3
0000000001
1
4
0000000010
0
2047
1111111111
1
Note: Divide ratio: 3 to 2047 (Divide ratios less than 3 are prohibited)
B
≥ A
PULSE SWALLOW FUNCTION
f
VCO = [(P xB)+ A]xfOSC/R
f
VCO: Output frequency of external voltage controlled oscillator (VCO)
B:
Preset divide ratio of binary 11-bit programmable counter (3 to 2047)
A:
Preset divide ratio of binary 7-bit swallow counter
(0
≤ A ≤ 127 {RF}, 0 ≤ A ≤ 15 {IF}, A ≤ B)
f
OSC: Output frequency of the external reference frequency oscillator
R:
Preset divide ratio of binary 15-bit programmable reference counter (3 to 32767)
P:
Preset modulus of dual moduIus prescaler (for IF; P = 8 or 16;
for RF; LMX2330L: P = 32 or 64
LMX2331L/32L: P = 64 or 128)
LMX2330L/LMX2331L/LMX2332L
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2332LTMX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinumTM Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2332LTMX/NOPB | 功能描述:IC FREQ SYNTH DUAL RF 20-TSSOP RoHS:是 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:* |
| LMX2332TM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Serial-Input Frequency Synthesizer |
| LMX2332U | 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 |
| LMX2332U WAF | 制造商:Texas Instruments 功能描述: |
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