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參數(shù)資料
| 型號(hào)： | LMX2301MDC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 160 MHz, UUC |
| 封裝： | DIE |
| 文件頁(yè)數(shù)： | 15/17頁(yè) |
| 文件大?。?/td> | 233K |
| 代理商： | LMX2301MDC |
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Functional Description (Continued)
PROGRAMMABLE DIVIDER (N COUNTER)
The N counter consists of the 11-bit programmable counter If the Control Bit (last bit shifted into the Data Register) is LOW
data is transferred from the 19-bit shift register into an 11-bit latch which sets the 11-bit programmable Counter Serial data
format is shown below
TLW12458 – 15
Note
R8 to R18 Programmable counter divide ratio control bits (3 to 2047)
7 LSB BITS OF N REGISTER
Divide
N
Ratio
7
6
5
4
3
2
1
X
XXXXXX
Note
X e Don’t care state
11-BIT PROGRAMMABLE COUNTER DIVIDE RATIO
Divide
18
N
17
N
16
N
15
N
14
N
13
N
12
N
11
N
10
NN
9
N
8
Ratio
N
3
000000000
1
4
000000001
0
#
#########
#
2047
1
Note
Divide ratio 3 to 2047 (Divide ratios less than 3 are prohibited)
EQUATION FOR OUTPUT FREQUENCY
DETERMINATION
fVCO e N c fOSC R
fVCO Output frequency of external voltage controlled oscil-
lator (VCO)
N
Preset divide ratio of binary 11-bit programmable
counter (3 to 2047)
fOSC Output frequency of the external reference frequency
oscillator
R
Preset divide ratio of binary 14-bit programmable ref-
erence counter (3 to 16383)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2301TM | 制造商:Texas Instruments 功能描述: |
| LMX2301TMX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 160 MHz Frequency Synthesizer for RF Personal Communications |
| LMX2305 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Communications |
| LMX2305 WAF | 制造商:Texas Instruments 功能描述: |
| LMX2305C WAF | 制造商:Texas Instruments 功能描述: |
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