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CDCM6208V1FRGZR Datasheet(PDF) 33 Page - Texas Instruments |
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CDCM6208V1FRGZR Datasheet(HTML) 33 Page - Texas Instruments |
33 / 87 page ![]() CDCM6208V1F www.ti.com SCAS943 – MAY 2015 10.4.2 Loop Filter Recommendations for Pin Modes The following two tables provide the internal charge pump and R3/C3 settings for pin modes. The designer can either design their own optimized loop filter, or use the suggested loop filter in the Table 6. Table 6. CDCM6208V1F Loop Filter Recommendation for Pin Mode Internal LPF PRI_REF SEC_REF Components Recommended f(PFD) ICP Use Case Loop Filter (MHz) (mA) Freq Freq R3 C3 C1/R2/C2 Type Type (MHz) (MHz) (Ohm) (pF) SPI MAN- 100 0 I/O 25 Disable 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 Default SEC Ohm I2C MAN- 100 1 I/O 25 Disable 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 Default SEC Ohm Reserv 11 ed MAN- 100 10 0x00 1-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x01 2-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x02 3-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x03 4-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x04 5-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x05 6-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x06 7-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x07 8-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x08 9-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 337.5 SEC Ohm MAN- 100 10 0x09 10-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x0A 11-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x0B 12-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x0C 13-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x0D 14-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x0E 15-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x0F 16-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x10 17-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x11 18-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x12 19-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x13 20-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x14 21-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x15 22-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm MAN- 100 10 0x16 23-V1F 25 LVCMOS 25 Crystal 25 2.5m 100pF/500Ohm/22nF 242.5 SEC Ohm Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 33 Product Folder Links: CDCM6208V1F |
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