Datasheet

Power-Supply Biasing and Sequencing
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings, since stresses beyond the listed ratings
can cause permanent damage to the device. Always
sequence V
DD
on first, followed by the switch inputs
and the logic inputs. Bypass at least one V
DD
input to
ground with a 0.1µF capacitor as close as possible to
the device. Use the smallest physical size possible for
optimal performance.
MAX4814E
DVI/HDMI 2:4 Low-Frequency Fanout Switch
______________________________________________________________________________________ 13
Table 6. Switch Selection Truth Table
DA_, DB_ INPUTS/REGISTER R0 BITS SWITCH A AND B TO SW_ CONNECTIONS
DB2/
BBEN
DB1/
BBSEL1
DB0/
BBSEL0
DA2/
BAEN
DA1/
BASEL1
DA0/
BASEL0
B TO
SW3
B TO
SW2
B TO
SW1
B TO
SW0
A TO
SW3
A TO
SW2
A TO
SW1
A TO
SW0
0 X X 0 X X ————————
0 X X 1 0 0 ——————— 1
0 X X 1 0 1 —————— 1 —
0 X X 1 1 0 ————— 1 ——
0 X X 1 1 1 ———— 1 ———
1 0 0 0 X X ——— 1 ————
1 0 0 1 0 0 ——— 0 ——— 1
10 010 1 ———1——1—
10 011 0 ———1—1——
1 0 0 1 1 1 ——— 1 1 ———
1 0 1 0 X X —— 1 —————
1 0 1 1 0 0 —— 1 ———— 1
1 0 1 1 0 1 —— 0 ——— 1 —
10 111 0 ——1——1——
1 0 1 1 1 1 —— 1 — 1 ———
1 1 0 0 X X — 1 ——————
1 1 0 1 0 0 — 1 ————— 1
1 1 0 1 0 1 — 1 ———— 1 —
11 011 0 —0———1——
1 1 0 1 1 1 — 1 —— 1 ———
1 1 1 0 X X 1 ———————
1 1 1 1 0 0 1 —————— 1
1 1 1 1 0 1 1 ————— 1 —
1 1 1 1 1 0 1 ———— 1 ——
1 1 1 1 1 1 0 ——— 1 ———
— = Denotes no connection.
1 = Denotes switch connection.
0 = Denotes switch B is high impedance.
X = Don’t care.
Table 7. MAX4814E Device Address
B7 B6 B5 B4 B3 B2 B1 B0
0 1 1 1 AD2 AD1 AD0 R/W
Fixed User Selected —