MAX4814E Maxim, MAX4814E Datasheet - Page 14

• Manufacturer Part Number: MAX4814E
• Description: The MAX4814E high-definition multimedia interface (HDMI) switch provides routing for low-frequency signals
• Manufacturer: Maxim

DVI/HDMI 2:4 Low-Frequency Fanout Switch
14
Figure 4. 2-Wire Interface Timing Diagram
Figure 5. Mode 1: I
Figure 7. Human Body ESD Test Model
VOLTAGE
SOURCE
V
HIGH-
18
______________________________________________________________________________________
DD
DC
MODE = 1: I
I
2
SDA SCL
C
19
CONTROL
MAX4814E
CHARGE-CURRENT-
20
LIMIT RESISTOR
2
C
23
CONTROL
1MΩ
R
22
100pF
C
2
C Control
C s
21
58
59
60
61
SETS 3 LSBs OF I
AS SHOWN ADDRESS = 0111 + LSB = 0111000.
THERE ARE 8 POSSIBLE
BY HARDWIRING PINS 23, 22, AND 21 TO 1 OR 0 USER
CAN CHANGE ADDRESS.
SEE TABLE 4 FOR I
STORAGE
CAPACITOR
RESISTANCE
SDA
1500Ω
DISCHARGE
SCL
CONTROL
3-STATE
R
D
t
HD, STA
2
C
CONDITION
2
C
ADDRESS.
START
96
65
61
30
REGISTERS.
I
2
C
ADDRESSES.
MAX3845
t
LOW
DEVICE
UNDER
TEST
t
r
t
t
SU, DAT
HIGH
t
f
Figure 6. Mode 0: Direct Control
Figure 8. Human Body Current Waveform
t
HD, DAT
AMPERES
I
P
36.8%
100%
90%
10%
0
0
t
SEE TABLE 3b FOR CONTROL
SU, STA
MODE = 0
t
RL
18
START CONDITION
MODE = 0: DIRECT
REPEATED
DA0
21
MAX4814E
CURRENT WAVEFORM
TIME
DA1
22
t
DA2
DL
23
I r
CONTROL
FUNCTIONS.
DB0
61
DB1
62
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
DB2
63