HDSP-3400 Agilent(Hewlett-Packard), HDSP-3400 Datasheet - Page 54

• Manufacturer Part Number: HDSP-3400
• Description: 20 mm (0.8 inch) Seven Segment Displays
• Manufacturer: Agilent(Hewlett-Packard)

Example for determination of internal clock
54
External clock supplied:
Calculation is as follows:
N divider ratio range: 1 – 31 (integer)
N divider ratio range: 1 – 31 (integer)
Calculation is as follows: 60 =16 x N/M
<Example 2>
N divider ratio range: 1 – 31 (integer)
Desired internal clock:
Calculation is as follows: 60 =4 x N/M
External clock supplied: 16MHz
Desired internal clock: 60MHz
External clock supplied: 4MHz
M divider ratio range: 1 or 4 (integer)
M divider ratio range: 1 or 4 (integer)
M divider ratio range: 1 or 4 (integer)
Desired internal clock: 60MHz
<Example 1>
Case M =1, N is impossible
f
int_clk
f
f
ext_clk
int_clk
Case M =4, N must be 15
Only one possible case exists
Case M =4, N is impossible
Only one possible case exists.
Case M =1, N must be 15
=
M
N
f
ext_clk