CDK2000 Cirrus Logic, Inc., CDK2000 Datasheet - Page 19

• Manufacturer Part Number: CDK2000
• Description: Fractional-n Clock Multiplier with Internal LCO
• Manufacturer: Cirrus Logic, Inc.

DS844F1
6. PARAMETER DESCRIPTIONS
As mentioned in
Global. These configuration sets, shown in
programmed at the factory. Please see
6.1
6.1.1
Modal Configuration Sets
There are four instances of each of these configuration parameters. Selection between the four stored sets
is made using the M[1:0] pins.
R-Mod Selection (RModSel[1:0])
Selects the R-Mod value, which is used as a factor in determining the PLL’s Fractional N.
Note:
eter is set to ‘011’.
RModSel[1:0]
00
01
10
11
Application:
Modal Configuration Set #0
Modal Configuration Set #1
Modal Configuration Set #2
Modal Configuration Set #3
Global Configuration Set
AuxLockCfg
Section 5.1 on page
This parameter does not take affect unless M2 pin is high and the M2Config[2:0] global param-
Ratio 0
Ratio 1
Ratio 2
Ratio 3
R-Mod Selection
Right-shift R-value by 1 (÷ 2).
Right-shift R-value by 2 (÷ 4).
Right-shift R-value by 3 (÷ 8).
Right-shift R-value by 4 (÷ 16).
“Ratio Modifier (R-Mod)” on page 13
ClkOutUnl
Figure 14. Parameter Configuration Sets
11, there are two different kinds of parameter configuration sets, Modal and
RModSel[1:0]
RModSel[1:0]
RModSel[1:0]
RModSel[1:0]
“Programming Information” on page 23
Figure
LFRatioCfg
14, can be programmed in the field using the CDK2000 or pre-
AuxOutSrc[1:0]
AuxOutSrc[1:0]
AuxOutSrc[1:0]
AuxOutSrc[1:0]
M2Config[2:0]
for more details.
ClkIn_BW[2:0]
M[1:0] pins
00
01
10
11
CS2300-OTP
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