Texas Instruments LMK04828 User Manual

LMK04821 , LMK04826 , LMK04828
www.ti.com SNAS605AR –MARCH 2013–REVISED DECEMBER 2015
9.7.6.4 DAC_CLK_MULT, DAC_TRIP_HIGH
This register contains the multiplier for the DAC clock counter and the low value at which holdover mode is
entered.
Table 45. Register 0x14E
POR
BIT NAME DESCRIPTION
DEFAULT
This is the multiplier for the DAC_CLK_CNTR which sets the rate at which the DAC value is
tracked.
Field Value DAC Multiplier Value
0 (0x00) 4
7:6 DAC_CLK_MULT 0
1 (0x01) 64
2 (0x02) 1024
3 (0x03) 16384
Voltage from Vcc at which holdover is entered if HOLDOVER_VTUNE_DET is enabled.
Field Value DAC Trip Value
0 (0x00) 1 x Vcc / 64
1 (0x01) 2 x Vcc / 64
2 (0x02) 3 x Vcc / 64
5:0 DAC_TRIP_HIGH 0
3 (0x03) 4 x Vcc / 64
... ...
61 (0x17) 62 x Vcc / 64
62 (0x18) 63 x Vcc / 64
63 (0x19) 64 x Vcc / 64
9.7.6.5 DAC_CLK_CNTR
This register contains the value of the DAC when in tracked mode.
Table 46. Register 0x14F
POR
BIT NAME DESCRIPTION
DEFAULT
This with DAC_CLK_MULT set the rate at which the DAC is updated. The update rate is =
DAC_CLK_MULT * DAC_CLK_CNTR / PLL1 PDF
Field Value DAC Value
0 (0x00) 0
1 (0x01) 1
2 (0x02) 2
7:0 DAC_CLK_CNTR 127
3 (0x03) 3
... ...
253 (0xFD) 253
254 (0xFE) 254
255 (0xFF) 255
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Texas Instruments LMK04828 Specifications

General

Brand	Texas Instruments
Model	LMK04828
Category	Motherboard
Language	English