Datasheet

AD9547 Data Sheet
Rev. E | Page 76 of 104
Table 71. Distribution Channel Modes
Address
Bit
Bit Name
Description
0x0404 [7:6] Unused Unused.
5
OUT0 CMOS phase invert
When the output mode is CMOS, the bit inverts the relative phase between the two
CMOS output pins. Otherwise, this bit is nonfunctional.
0 (default) = not inverted.
1 = inverted.
4 OUT0 polarity invert Invert the polarity of OUT0.
0 (default) = not inverted.
1 = inverted.
3 OUT0 drive strength OUT0 output drive capability control.
0 (default) = CMOS: low drive strength; LVDS: 3.5 mA nominal.
1 = CMOS: normal drive strength; LVDS: 7 mA nominal.
[2:0]
OUT0 mode
OUT0 operating mode select.
000 = CMOS (both pins).
001 = CMOS (positive pin), tristate (negative pin).
010 = tristate (positive pin), CMOS (negative pin).
011 (default) = tristate (both pins).
100 = LVDS.
101 = LVPECL.
110 = reserved.
111 = reserved.
0x0405
[7:6]
Unused
Unused.
5 OUT1 CMOS phase invert When the output mode is CMOS, the bit inverts the relative phase between the two
CMOS output pins. Otherwise, this bit is nonfunctional.
0 (default) = not inverted.
1 = inverted.
4 OUT1 polarity invert Invert the polarity of OUT1.
0 (default) = not inverted.
1 = inverted.
3
OUT1 drive strength
OUT1 output drive capability control.
0 (default) = CMOS: low drive strength; LVDS: 3.5 mA nominal.
1 = CMOS: normal drive strength; LVDS: 7 mA nominal.
[2:0] OUT1 mode OUT1 operating mode select.
000 = CMOS (both pins).
001 = CMOS (positive pin), tristate (negative pin).
010 = tristate (positive pin), CMOS (negative pin).
011 (default) = tristate (both pins).
100 = LVDS.
101 = LVPECL.
110 = reserved.
111 = reserved.
0x0406 [7:0] Unused Unused.
0x0407
[7:0]