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参数资料
| 型号： | LMX2350TM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO24 |
| 封装： | PLASTIC, TSSOP-24 |
| 文件页数： | 9/21页 |
| 文件大小： | 405K |
| 代理商： | LMX2350TM/NOPB |
Programming Description (Continued)
4.4.1 Programmable CMOS Output Truth Table
BIT
LOCATION
FUNCTION
0
1
OUT_0
IF_N[17]
OUT0 CMOS output pin level
set
LOW
HIGH
OUT_1
IF_N[18]
OUT1 CMOS output pin level
set
LOW
HIGH
FastLock
IF_N[20]
FastLock mode select
CMOS output
FastLock mode
When the FastLock bit is set to one, OUT_0 and OUT_1 are don’t care bits. FastLock mode utilizes the OUT0 and OUT1 output
pins to synchronously switch between active low and TRI-STATE. The OUT0 = LOW state occurs whenever the RF loop’s CP_8X
is selected HIGH while the FastLock bit is set HIGH (see programming description 3.2.2). The OUT0 pin reverts to TRI-STATE
when the CP_8X bit is LOW. Similarly for the IF loop, the synchronous activation of OUT1= LOW or TRI-STATE, is dependent on
whether the CP_GAIN_8 is high or low respectively (see programming description 3.1.4).
4.5 SERIAL DATA INPUT TIMING
Note: Data shifted into register on clock rising edge. Data is shifted in MSB first.
TEST CONDITIONS: The Serial Data Input Timing is tested using a symmetrical waveform around Vcc/2. The test waveform has an edge rate of 0.6 V/nsec
with amplitudes of 2.2V @ Vcc=2.7 V and 2.6V @ Vcc = 5.5 V.
DS100831-3
LMX2350/LMX2352
www.national.com
17
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相关代理商/技术参数 |
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| LMX2350TMX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Serial-Input Frequency Synthesizer |
| LMX2350TMX/NOPB | 功能描述:IC FREQ SYNTH LOPWR DUAL 24TSSOP 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:* |
| LMX2352 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LMX2352SLBX | 功能描述:IC FREQ SYNTH DUAL 24LAMINATECSP 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:* |
| LMX2352TM | 制造商:Texas Instruments 功能描述:IC, DUAL FREQ SYNTHESIZER 1.2GHZ 24-TSSOP, PLL Type:Frequency Synthesis, Frequen |
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