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IC-NQLTSSOP20 参数 Datasheet PDF下载

IC-NQLTSSOP20图片预览
型号: IC-NQLTSSOP20
PDF下载: 下载PDF文件 查看货源
内容描述: 带SSI接口13位仙/ D转换器 [13-bit Sin/D CONVERTER WITH SSI INTERFACE]
分类和应用: 转换器
文件页数/大小: 24 页 / 898 K
品牌: ICHAUS [ IC-HAUS GMBH ]
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iC-NQL  
13-bit Sin/D CONVERTER WITH SSI INTERFACE  
Rev B1, Page 14/24  
Incremental output to A, B and Z  
nals. A digital zero-delay glitch filter then takes care  
There are two criteria which must be considered when of a temporal edge-to-edge separation, guaranteeing  
setting the maximum possible converter frequency via spike-free output signals after an ESD impact to the  
the FCTR register:  
sensor, for instance.  
1. The maximum input frequency  
A serial data output is simultaneously possible at any  
2. System limitations, e.g. due to slow counters or time. However, for the transfer of angle data to the  
cable transmission  
output register the incremental output is halted for one  
period of the clock signal applied to pin CLK.  
When facing system limitations it is useful to prese-  
lect a minimum transition distance for the output sig-  
1. Max. Possible Converter Frequency Defined By The Maximum Input Frequency  
Output Frequency Resolution Maximum Input Frequency  
Restrictions  
Examples*  
fout @ finmax  
A, B  
Requirem.  
at high input frequency  
finmax [kHz] at resol.  
8192 1024 200  
FCTR  
bin dec finmax  
0x0004  
0x4102  
0x4202  
0x4304  
Notes  
325 kHz  
542 kHz  
1.08 MHz  
1.3 MHz  
X
X
X
X
X
X
X
X
f(OCS)min / 40 / Resolution  
f(OSC)min / 24 / Resolution  
2 x f(OSC)min / 24 Res.  
4 x f(OSC)min / 40 / Res.  
None  
0.16  
0.26  
0.53  
0.64  
1.27  
2.1  
4.2  
5.1  
6.5  
Relative angle error 2x increased  
Relative angle error 4x increased  
Relative angle error 8x increased  
10.8  
21.6  
26.0  
*) Calculated with fosc()min taken from Electrical Characteristics item A01.  
Table 15: Max. converter frequency for incremental A/B/Z output, defined by the max. input frequency  
2. Max. Possible Converter Frequency Defined By The Minimum Transition Distance  
Output Frequency Resolution Minimum Transition Distance Restrictions  
Example*  
fout @ tMTD  
Requirem. at A, B  
at high input frequency  
tMTD [µsec]  
FCTR  
A, B  
bin dec tMTD  
0x00FF 10 kHz  
X
X
X
...  
X
X
X
X
X
X
X
X
X
...  
X
X
X
X
X
X
2048 / f(OSC)max  
2040 / f(OSC)max  
2032 / f(OSC)max  
...  
None  
22.8  
22.7  
22.6  
...  
0x00FE 10.05 kHz  
0x00FD 10.09 kHz  
None  
None  
...  
...  
...  
0x0006  
0x0005  
0x0004  
0x4102  
0x4202  
0x4304  
Notes  
366 kHz  
427 kHz  
512 kHz  
854 kHz  
1.7 MHz  
2.1 MHz  
56 / f(OSC)max  
48 / f(OSC)max  
40 / f(OSC)max  
24 / f(OSC)max  
12 / f(OSC)max  
10 / f(OSC)max  
None  
0.62  
0.53  
0.44  
0.27  
0.13  
0.11  
None  
None  
Relative angle error 2x increased  
Relative angle error 4x increased  
Relative angle error 8x increased  
*) Calculated with fosc()max taken from El.Char. item A01; the min. transition distance refers to output A vs. output B  
without reversing the sense of rotation.  
Table 16: Max. converter frequency for incremental A/B/Z output, defined by the min. transition distance