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L6480 Datasheet(PDF) 56 Page - STMicroelectronics

Part # L6480
Description  The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.
PDF  73 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6480 Datasheet(HTML) 56 Page - STMicroelectronics

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Programming manual
L6480
56/73
Doc ID 023278 Rev 3
The F_PWM_DEC bits set the multiplication factor of PWM frequency generation.
In the following tables all available PWM frequencies are listed according to oscillator
frequency, F_PWM_INT and F_PWM_DEC values (the CONFIG register OSC_SEL
parameter must be correctly programmed).
101
6
110
7
111
7
Table 39.
PWM frequency: multiplication factor
F_PWM_DEC [2..0]
Multiplication factor
00
0
0.625
00
1
0.75
01
0
0.875
01
1
1
10
0
1.25
10
1
1.5
11
0
1.75
11
1
2
Table 40.
Available PWM frequencies [kHz]: 8-MHz oscillator frequency
F_PWM_DEC
F_PWM_
INT
000
001
010
011
100
101
110
111
000
9.8
11.7
13.7
15.6
19.5
23.4
27.3
31.3
001
4.9
5.9
6.8
7.8
9.8
11.7
13.7
15.6
010
3.3
3.9
4.6
5.2
6.5
7.8
9.1
10.4
011
2.4
2.9
3.4
3.9
4.9
5.9
6.8
7.8
100
2.0
2.3
2.7
3.1
3.9
4.7
5.5
6.3
101
1.6
2.0
2.3
2.6
3.3
3.9
4.6
5.2
110
1.4
1.7
2.0
2.2
2.8
3.3
3.9
4.5
Table 38.
PWM frequency: integer division factor (continued)
F_PWM_INT
[2..0]
Integer division factor



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