- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371897 > HSP45102 (Intersil Corporation) 12-Bit Numerically Controlled Oscillator PDF資料下載
參數(shù)資料
| 型號： | HSP45102 |
| 廠商： | Intersil Corporation |
| 英文描述： | 12-Bit Numerically Controlled Oscillator |
| 中文描述： | 12位數(shù)控振蕩器 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 48K |
| 代理商： | HSP45102 |
3-198
register.Ateachclock,thecontentsofthisregisteraresummed
with the current contents of the accumulator to step to the new
phase. The phase accumulator stepping may be inhibited by
holding ENPHAC high. The phase accumulator may be loaded
with the value in the input register by asserting LOAD, which
zeroes the feedback to the phase accumulator.
The phase adder sums the encoded phase modulation bits
P0-1 and the output of the phase accumulator to offset the
phase by 0, 90, 180 or 270 degrees. The two bits are
encoded to produce the phase mapping shown in Table 1.
This phase mapping is provided for direct connection to the
in-phase and quadrature data bits for QPSK modulation.
ROM Section
The ROM section generates the 12-bit sine value from the
13-bit output of the phase adder. The output format is offset
binary and ranges from 001 to FFF hexadecimal, centered
around 800 hexadecimal.
TABLE 1. PHASE MAPPING
P0-1 CODING
P1
P0
PHASE SHIFT (DEGREES)
0
0
0
0
1
90
1
0
270
1
1
180
FIGURE 2A. FREQUENCY LOADING ENABLED BY SFTEN
FIGURE 2B. FREQUENCY LOADING CONTROLLED BY SCLK
FIGURE 3. I/O TIMING
SCLK
SD
SFTEN
MSB/LSB
0
1
2
63
62
61
SCLK
SD
SFTEN
MSB/LSB
0
1
2
63
62
61
CLK
LOAD
TXFR
OUT0-11
1
3
4
6
7
8
9
10
11
5
2
NEW
DATA
ENPHAC
SEL_L/M
HSP45102
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HSP45102PC-33 | 12-Bit Numerically Controlled Oscillator |
| HSP45102PC-40 | 12-Bit Numerically Controlled Oscillator |
| HSP45106GC-33 | 16-Bit Numerically Controlled Oscillator |
| HSP45106JI-25 | 16-Bit Numerically Controlled Oscillator |
| HSP45106 | 16-Bit Numerically Controlled Oscillator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HSP45102_05 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:12-Bit Numerically Controlled Oscillator |
| HSP45102_07 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:12-Bit Numerically Controlled Oscillator |
| HSP45102PC-33 | 制造商:Rochester Electronics LLC 功能描述: |
| HSP45102PC-40 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:12-Bit Numerically Controlled Oscillator |
| HSP45102R3406 | 制造商:Harris Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。