Two-Lane and Four-Lane DisplayPort Passive
Switches with Separate AUX/HPD Control
MAX4998/MAX14998
6 ______________________________________________________________________________________
Pin Configurations
Pin Description
MAX4998 MAX14998
TOP VIEWS
TQFN
11
12
13
14
SEL2
NO3+
NO2-
NO2+
28
+
27
26
25
NC0+
NC0-
NC1+
*EP *EP
*CONNECT EXPOSED PAD TO GROUND.
NC1-
1 2 3 4 5 6 7 8 9 10
24 23 22 21 20 19 18 17 16 15
SEL1
V
DD
COM3+
V
DD
COM2-
COM2+
COM1-
COM1+
COM0-
COM0+
V
DD
NC3+
NC2-
NC2+
V
DD
NO1-
NO1+
NO0-
NO0+
GND
TQFN
+
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
COM4-
V
DD
COM5+
COM5-
SEL1
SEL2
COM4+
COM3-
COM3+
COM2-
COM2+
V
DD
COM1-
COM1+
COM0-
COM0+
V
DD
18
19
20
21
NO5-
NO5+
NO4-
NO4+
42
41
40
39
NC0+
NC0-
NC1+
NC1-
NO3-
V
DD
NC4+
NC4-
NC5+
NC5-
NO3+
NO2-
NO2+
NO1-
NO1+
NO0-
NO0+
NC3-
NC3+
NC2-
NC2+
PIN
NAME FUNCTION
MAX4998 MAX14998
1 2 COM0+ Analog Switch 1. Common positive terminal.
2 3 COM0- Analog Switch 1. Common negative terminal.
3 4 COM1+ Analog Switch 2. Common positive terminal.
4 5 COM1- Analog Switch 2. Common negative terminal.
5 7 COM2+ Analog Switch 3. Common positive terminal.
6 8 COM2- Analog Switch 3. Common negative terminal.
7, 9, 15, 19 1, 6, 13, 26 V
DD
Positive Supply Voltage Input. Connect V
DD
to a +3.0V to +3.6V supply voltage.
Bypass V
DD
to GND with a 0.1mF ceramic capacitor placed as close to the device as
possible (see the Board Layout section).
8 9 COM3+ Analog Switch 4. Common positive terminal.
10 16 SEL1 Control Signal Input. Selects high-frequency switching.
11 17 SEL2 Control Signal Input. Selects AUX/HPD.
12 28 NO3+ Analog Switch 4. Normally Open positive terminal.
13 29 NO2- Analog Switch 3. Normally Open negative terminal.
14 30 NO2+ Analog Switch 3. Normally Open positive terminal.
16 36 NC3+ Analog Switch 4. Normally Closed positive terminal.
17 37 NC2- Analog Switch 3. Normally Closed negative terminal.
18 38 NC2+ Analog Switch 3. Normally Closed positive terminal.
20 31 NO1- Analog Switch 2. Normally Open negative terminal.
21 32 NO1+ Analog Switch 2. Normally Open positive terminal.
22 33 NO0- Analog Switch 1. Normally Open negative terminal.
(9 Seiten)
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