Texas Instruments LMK0482 Series User Manual

LMK04821 , LMK04826 , LMK04828
SNAS605AR –MARCH 2013–REVISED DECEMBER 2015 www.ti.com
9.7.8.7 PLL2_LF_R4, PLL2_LF_R3
This register controls the integrated loop filter resistors.
Table 71. Register 0x16C
POR
BIT NAME DESCRIPTION
DEFAULT
7:6 NA 0 Reserved
Internal loop filter components are available for PLL2, enabling either 3rd or 4th order loop
filters without requiring external components.
Internal loop filter resistor R4 can be set according to the following table.
Field Value Resistance
0 (0x00) 200 Ω
1 (0x01) 1 kΩ
5:3 PLL2_LF_R4 0
2 (0x02) 2 kΩ
3 (0x03) 4 kΩ
4 (0x04) 16 kΩ
5 (0x05) Reserved
6 (0x06) Reserved
7 (0x07) Reserved
Internal loop filter components are available for PLL2, enabling either 3rd or 4th order loop
filters without requiring external components.
Internal loop filter resistor R3 can be set according to the following table.
Field Value Resistance
0 (0x00) 200 Ω
1 (0x01) 1 kΩ
2:0 PLL2_LF_R3 0
2 (0x02) 2 kΩ
3 (0x03) 4 kΩ
4 (0x04) 16 kΩ
5 (0x05) Reserved
6 (0x06) Reserved
7 (0x07) Reserved
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Texas Instruments LMK0482 Series Specifications

General

Brand	Texas Instruments
Model	LMK0482 Series
Category	Motherboard
Language	English