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IC-MQ 参数 Datasheet PDF下载

IC-MQ图片预览
型号: IC-MQ
PDF下载: 下载PDF文件 查看货源
内容描述: 可编程的9位正弦/余弦插值用IC RS422驱动器 [PROGRAMMABLE 9-BIT Sin/Cos INTERPOLATION IC WITH RS422 DRIVER]
分类和应用: 驱动器
文件页数/大小: 39 页 / 816 K
品牌: ICHAUS [ IC-HAUS GMBH ]
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iC-MQ PROGRAMMABLE 9-BIT  
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER  
Rev D4, Page 29/39  
SIK  
Code  
00  
Adr 0x1E, bit 5:4  
Function  
Output Driver Configuration  
The output drivers can be used as push-pull, lowside  
or highside drivers; the mode of operation is deter-  
mined by TRIHL(1:0).  
typ. 2 mA, linking logic or driver ICs  
typ. 8 mA  
01  
10  
typ. 40 mA  
11  
typ. 100 mA, recommended for RS422  
See Elec. Char. Nos. 503/504  
In order to avoid steep edges when transmitting via  
short wires the slew rate can be set using SSR to suit  
the length of the cable. This can result in a limiting  
of the maximum permissible output frequency if at the  
same time the RS422 specification is to be adhered  
to (for example, to 300 kHz at a slew rate of 300 ns;  
the tolerances in Electrical Characteristics, numbers  
506/507, must be observed).  
Note  
Table 51: Output Short-Circuit Current  
Minimum Phase Distance  
The minimum phase distance for A/B/Z and  
CPD/CPU/CP output signals can be preselected using  
MTD(3:0). This setting limits the maximum possible  
output frequency for safe transmission to counters  
which cannot debounce spikes or only permit a low  
input frequency.  
The driver output short-circuit current can be set by  
SIK and can be minimized when connecting to logic or  
to an external 24 V line driver. If the outputs are used  
as RS422-compatible 5 V drivers, it is recommended  
that SIK = 11 to keep the power dissipation of iC-MQ  
low.  
When preselecting the minimum edge distance the  
configuration of the RS422 output drivers (with regard  
to the driver current and slew rate) and the length of  
cable used must be taken into account.  
TRIHL  
Code  
00  
Adr 0x1E, bit 1:0  
Function  
Push-pull operation  
MTD  
Code  
0x0  
0x1  
0x2  
0x3  
0x4  
0x5  
0x6  
0x7  
0x8  
0x9  
0xA  
0xB  
0xC  
0xD  
0xE  
0xF  
Note  
Adr 0x1D, bit 7:4  
Mode ABZ: tMTD  
220 ns  
01  
Highside driver mode (P channel open drain)  
Lowside driver mode (N channel open drain)  
Not permitted  
Mode 191/193: tclk()lo  
110 ns  
205 ns  
300 ns  
400 ns  
500 ns  
600 ns  
700 ns  
800 ns  
50 ns  
10  
11  
410 ns  
600 ns  
Table 49: Output Drive Mode  
800 ns  
1.0 µs  
SSR  
Code  
00  
Adr 0x1E, bit 3:2  
1.2 µs  
Function  
1.4 µs  
Nominal value 12 ns  
Nominal value 25 ns  
Nominal value 80 ns  
Nominal value 220 ns  
See Elec. Char. Nos. 506/507  
1.6 µs  
01  
220 ns  
10  
410 ns  
50 ns  
11  
600 ns  
50 ns  
Note  
800 ns  
50 ns  
1.0 µs  
50 ns  
Table 50: Output Slew Rate  
1.2 µs  
50 ns  
1.4 µs  
50 ns  
1.6 µs  
50 ns  
All timing specifications are nominal values, see  
Elec. Char. No. 515 for tolerances.  
Table 52: Minimum Phase Distance