GP214D Datasheet, PDF (9/15 Pages) List of Unclassifed Manufacturers – 1.4GHz DUAL PLL

GP214D
1.4GHz DUAL PLL
PROGRAMMABLE N-COUNTER, CH1 AND CH2
These counters consist of the 5-bit swallow counter, the 12-bit programmable main counter, and two
modulus prescaler providing divisions of 64 and 66. The swallow counter and main counter enable to set
any of 192 to 262142 divisions.
LSB
Swallow counter
Main counter
MSB
N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15 N16 N17 N18 N19
N-Counter divide ratio, N
Group code
CH1, “10”
CH2, “01"
5-BIT SWALLOW COUNTER DIVIDE RATIO (A COUNTER)
Divide ratio: 0 to 31, B A
Divide
Ratio (A)
N5
N4
N3
N2
N1
0
0
0
0
0
0
1
0
0
0
0
1
31
1
1
1
1
1
12-BIT MAIN COUNTER DIVIDE RATIO (B COUNTER)
Divide ratio: 3 to 4095
Divide
Ratio (B)
N17 N16 N15 N14 N13 N12 N11 N10
N9
N8
N7
N6
3
0
0
0
0
0
0
0
0
0
0
1
1
4
0
0
0
0
0
0
0
0
0
1
0
0
4095
1
1
1
1
1
1
1
1
1
1
1
1
Divide ratio of channel 1 and 2 = N
N = 2×(32×B+A), B A
Divide ratio: 192 to 262142
Version 1.2 (Jan. 2006)
9
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