- 您現(xiàn)在的位置：買賣IC網 > PDF目錄373391 > SHC702 (Texas Instruments, Inc.) 16-Bit 512kHz Sampling A/D Converter System(16位 512k赫茲采樣頻率的A/D轉換系統(tǒng)) PDF資料下載
參數(shù)資料
| 型號： | SHC702 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 16-Bit 512kHz Sampling A/D Converter System(16位 512k赫茲采樣頻率的A/D轉換系統(tǒng)) |
| 中文描述： | 16位512kHz采樣A / D轉換器系統(tǒng)（16位為512k赫茲采樣頻率的的A / D轉換系統(tǒng)） |
| 文件頁數(shù)： | 15/15頁 |
| 文件大?。?/td> | 164K |
| 代理商： | SHC702 |
ADC701/SHC702
15
HISTOGRAM TESTING
The FFT provides an excellent measure of harmonic and
intermodulation distortion. Low-order spurious products are
primarily caused by integral nonlinearity of the SHC and
ADC. The influence of differential linearity errors is harder
to distinguish in a spectral plot—it may show up as high-
order harmonics or as very minor variations in the overall
appearance of the noise floor.
A more direct method of examining the differential linearity
(DL) performance is by using the popular histogram test
method
(5)
. Application of the histogram test to the ADC701/
SHC702 is relatively straightforward, though once again
extra precision is required for a 16-bit system compared to
8- or 12-bit systems. Basically, this means that a very large
number of samples are required to build an accurate statis-
tical picture of each code width. If a histogram is taken using
only one million points, then the average number of samples
per code is less than fifteen. This is inadequate for good
statistical confidence, and the resulting DL plot will look
considerably worse than the actual performance of the con-
verter. In practice 10 to 20 million samples will demonstrate
good results for a 16-bit system and expose any serious
flaws in the DL performance. If the memory incrementing
hardware can keep pace with the ADC701, then 20 million
samples can be accumulated in well under one minute. The
last figure on page six shows the results of a 19.6 million
point histogram taken at an input frequency of 1kHz.
NOTES:
1. Available from Bergquist, 5300 Edina Industrial Blvd., Minneapolis, MN 55435
(612) 835-2322.
2. Brigham, E. Oran,
The Fast Fourier Transform
, Englewood Cliffs, N.J.: Prentice-
Hall, 1974.
3. Harris, Fredric J., “On the Use of Windows for Harmonic Analysis with the Discrete
Fourier Transform”,
Proceedings of the IEEE
, Vol. 66, No. 1, January 1978, pp 51-
83.
4. Halbert, Joel M. and Belcher, R. Allan, “Selection of Test Signals for DSP-Based
Testing of Digital Audio Systems”, Journal of the Audio Engineering Society, Vol.
34, No. 7/8, July/August, 1986, pp 546-555.
5. “Dynamic Tests for A/D Converter Performance”, Application Bulletin AB-133,
Burr-Brown Corporation, Tucson, AZ, 1985.
Phase-Locked
HP3325A
Frequency
Synthesizer
– or –
Crystal
Filter
+2.8V
+0.2V
Analog
Input
600
Convert
Command
Brüel & Kjr
Type 1051
Synthesizer
TTL
Latches
74HC574
ADC701 &
SHC702
Under Test
HP330
Series 9000
Computer
High-Speed
SRAM
64KB x 16
Low-Pass
Filter
FIGURE 6. FFT Test Configuration for Two-Tone (Intermodulation) Testing.
相關PDF資料 |
PDF描述 |
|---|---|
| SHC804 | High Speed Sample/Hold Amplifier(高速采樣/保持放大器) |
| SHE113YF-(B) | High Brightness LED Lamp |
| SHE113MD-(B) | High Efficiency LED Lamp |
| SHE113MD | High Efficiency LED Lamp |
| SHE113YF | High Brightness LED Lamp |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SHC702 WAF | 制造商:Texas Instruments 功能描述: |
| SHC702JM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SHC8 | 制造商:CIT 制造商全稱:CIT Relay & Switch 功能描述:CIT SWITCH |
| SHC-80 | 功能描述:CLAMP SNAP-IT 1.250-1.438" RoHS:是 類別:線纜，導線 - 管理 >> 線夾和夾具 系列:SHC 標準包裝:100 系列:TC 類型:C-夾 開口尺寸:0.79" L x 0.54" W x 0.67" H（20.1mm x 13.7mm x 17.0mm） 安裝類型:釘子 材質:聚丙烯 顏色:黑 |
| SHC804 | 制造商:BB 制造商全稱:BB 功能描述:High Speed SAMPLE/HOLD AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復。