- 您现在的位置：买卖IC网 > PDF目录98001 > LMX2315MDA (NATIONAL SEMICONDUCTOR CORP) PLL FREQUENCY SYNTHESIZER, 1200 MHz, UUC PDF资料下载
参数资料
| 型号： | LMX2315MDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, UUC |
| 封装： | DIE |
| 文件页数： | 3/25页 |
| 文件大小： | 452K |
| 代理商： | LMX2315MDA |
Functional Description (Continued)
PROGRAMMABLE DIVIDER (N COUNTER)
The N counter consists of the 7-bit swallow counter (A counter) and the 11-bit programmable counter (B counter) If the Control
Bit (last bit shifted into the Data Register) is LOW data is transferred from the 19-bit shift register into a 7-bit latch (which sets
the 7-bit Swallow (A) Counter) and an 11-bit latch (which sets the 11-bit programmable (B) Counter) Serial data format is shown
below
TLW12339 – 20
Note
S8 to S18 Programmable counter divide ratio control bits (3 to 2047)
7-BIT SWALLOW COUNTER DIVIDE RATIO
(A COUNTER)
Divide
S
7
S
6
S
5
S
4
S
3
S
2
S
1
Ratio
A
0
0000000
1
0000001
127
1111111
Note
Divide ratio 0 to 127
B t A
11-BIT PROGRAMMABLE COUNTER DIVIDE RATIO
(B COUNTER)
Divide
18
S
17
S
16
S
15
S
14
S
13
S
12
S
11
S
10
SS
9
S
8
Ratio
B
3
0
00000000
1
4
0
00000001
0
2047
1
Note
Divide ratio 3 to 2047 (Divide ratios less than 3 are prohibited)
B t A
PULSE SWALLOW FUNCTION
fVCO e (P c B) a A c fOSC R
fVCO Output frequency of external voltage controlled oscil-
lator (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 s A s 127 A s B)
fOSC Output frequency of the external reference frequency
oscillator
R
Preset divide ratio of binary 14-bit programmable ref-
erence counter (3 to 16383)
P
Preset modulus of dual moduIus prescaler (64 or 128
for 231520 or 32 or 64 for 2325)
http
www nationalcom
11
相关PDF资料 |
PDF描述 |
|---|---|
| LMX2316MWC | PLL FREQUENCY SYNTHESIZER, 1200 MHz, UUC |
| LMX2316SLB | PLL FREQUENCY SYNTHESIZER, 1200 MHz, CQCC16 |
| LMX2321TMX | PLL FREQUENCY SYNTHESIZER, 2100 MHz, PDSO16 |
| LMX2324ATM | PLL FREQUENCY SYNTHESIZER, 2200 MHz, PDSO16 |
| LMX2364TMX/NOPB | PLL FREQUENCY SYNTHESIZER, 2600 MHz, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2315TM | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315TMX | 功能描述:IC FREQ SYNTH 2.5GHZ 20-TSSOP 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:* |
| LMX2316 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316LBX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:FREQUENCY SYNTHESIZER|BICMOS|LLCC|16PIN|PLASTIC |
| LMX2316SLBX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
发布紧急采购，3分钟左右您将得到回复。