Maxim Integrated DS4830A Optical Microcontroller - Manual (Page 130)

DS4830A User’s Guide
130
See Tables 14-4a, 14-4b, and 14-4c for slot frequencies at various resolutions and pulse-spreading options with the
different PWM source clock frequencies.
Table 14-4a: Slot Frequencies for Various Resolution and Pulse Spreading with Core Clock = 10MHz
Source = Core Clock (10MHz)
Resolution
Frame Frequency
(Hz)
Pulse Spreading (PS[1:0])
00 01 10 11
Slot Frequency (Hz)
7 78125 78125 78125 78125 78125
8 39062.5 39062.5 39062.5 39062.5 78125
9 19531.25 19531.25 19531.25 39062.5 78125
10 9765.625 9765.625 19531.25 39062.5 78125
11 4882.813 9765.625 19531.25 39062.5 78125
12 2441.406 9765.625 19531.25 39062.5 78125
13 1220.703 9765.625 19531.25 39062.5 78125
14 610.352 9765.625 19531.25 39062.5 78125
15 305.176 9765.625 19531.25 39062.5 78125
16 152.588 9765.625 19531.25 39062.5 78125
Table 14-4b: Slot Frequencies for Various Resolution and Pulse Spreading with Peripheral Clock = 20MHz
Source = Peripheral Clock (20MHz)
Resolution
Frame Frequency
(Hz)
Pulse Spreading (PS[1:0])
00 01 10 11
Slot Frequency (Hz)
7 156250 156250 156250 156250 156250
8 78125 78125 78125 78125 156250
9 39062.5 39062.5 39062.5 78125 156250
10 19531.25 19531.25 39062.5 78125 156250
11 9765.625 19531.25 39062.5 78125 156250
12 4882.813 19531.25 39062.5 78125 156250
13 2441.406 19531.25 39062.5 78125 156250
14 1220.703 19531.25 39062.5 78125 156250
15 610.352 19531.25 39062.5 78125 156250
16 305.176 19531.25 39062.5 78125 156250