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參數(shù)資料
| 型號： | LMX2326SLBX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2800 MHz, CQCC16 |
| 封裝： | CSP-16 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 301K |
| 代理商： | LMX2326SLBX/NOPB |
1.7 Application Information (Continued)
1.7.9 FastLock MODE 1 PROGRAMMING
The F[1]–F[7] bits will be denoted as (*) and are dependent on the desired modes of the applicable functions. To program the
device for mode 1 FastLock, the F[8]–F[10] bits are programmed 100, while the N[19] bit is set to 1. The device will stay in the
4X current mode until another N bit stream is sent with the N[19] bit reset to 0. This gives a bit stream as follows:
1.7.10 FastLock MODE 2 PROGRAMMING
Again, the F[1]–F[7] bits will be denoted as don’t care (*) but are dependent on the desired modes of the applicable functions.
To program the device for mode 2 FastLock, the F[8]–F[10] bits are programmed 101, while the N[19] bit is set to 1. The device
will stay in the 4X current mode for the programmed number of phase detector cycles. Bits F[11]–F[14] program this number of
cycles and are shown in
Table 6. For our example, we will use 27 phase detector cycles, i.e. bits F[11]–F[14] will be 0110
b. After
27 phase detector cycles, the N[19] bit returns to zero, bringing the device back to low current mode. The resulting bit stream is
as follows:
FastLock modes 3 and 4 are programmed in the same manner and give the added 4X gain increase as discussed in Section 1.3.4
FastLock modes.
DS100127-17
DS100127-18
LMX2306/LMX2316/LMX2326
www.national.com
17
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2326TM | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 100MHz to 2800MHz 16-Pin TSSOP Rail |
| LMX2326TM | 制造商:Texas Instruments 功能描述:2.8GHZ SINGLE PLL 2326 TSSOP16 |
| LMX2326TM/NOPB | 功能描述:IC FREQ SYNTHESIZER 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LMX2326TM/NOPB | 制造商:Texas Instruments 功能描述:PHASE LOCK LOOP (PLL) IC |
| LMX2326TMD | 制造商:Texas Instruments 功能描述: |
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