IDT82V3380A Datasheet, PDF (127/177 Pages) Integrated Device Technology – SYNCHRONOUS ETHERNET IDT WAN PLL™

IDT82V3380A
SYNCHRONOUS ETHERNET WAN PLL™
T0_DPLL_ACQ_BW_DAMPING_CNFG - T0 DPLL Acquisition Bandwidth & Damping Factor Configuration
Address: 57H
Type: Read / Write
Default Value: 01101111
7
6
5
4
3
2
1
0
T0_DPLL_ACQ T0_DPLL_ACQ T0_DPLL_ACQ T0_DPLL_ACQ T0_DPLL_ACQ T0_DPLL_ACQ T0_DPLL_ACQ T0_DPLL_ACQ
_DAMPING2
_DAMPING1
_DAMPING0
_BW4
_BW3
_BW2
_BW1
_BW0
Bit
Name
Description
These bits set the acquisition damping factor for T0 DPLL.
000: Reserved.
001: 1.2.
7-5
T0_DPLL_ACQ_DAMPING[2:0]
010: 2.5.
011: 5. (default)
100: 10.
101: 20.
110, 111: Reserved.
These bits set the acquisition bandwidth for T0 DPLL.
00000: 0.5 mHz.
00001: 1 mHz.
00010: 2 mHz.
00011: 4 mHz.
00100: 8 mHz.
00101: 15 mHz.
00110: 30 mHz.
00111: 60 mHz.
01000: 0.1 Hz.
4-0
T0_DPLL_ACQ_BW[4:0] 01001: 0.3 Hz.
01010: 0.6 Hz.
01011: 1.2 Hz.
01100: 2.5 Hz.
01101: 4 Hz.
01110: 8 Hz.
01111: 18 Hz. (default)
10000: 35 Hz.
10001: 70 Hz.
10010: 560 Hz.
10011 ~ 11111: Reserved.
Programming Information
127
May 16, 2011