MAX4998ETI+ Maxim Integrated Products, MAX4998ETI+ Datasheet - Page 7

• Manufacturer Part Number: MAX4998ETI+
• Description: IC DISPLAY PORT MUX 2CH 28-TQFN
• Manufacturer: Maxim Integrated Products
• Series: DisplayPort™r

Specifications of MAX4998ETI+

• Function: Switch
• Circuit: 3 x DPDT, 1 x SPDT
• On-state Resistance: 7 Ohm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 3.3V
• Current - Supply: 500µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Number Of Switches: Triple
• Switch Configuration: DPDT
• On Resistance (max): 7 Ohms
• On Time (max): 120 ns
• Off Time (max): 50 ns
• Off Isolation (typ): - 28 dB
• Bandwidth: 5 GHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current: 850 uA
• Maximum Power Dissipation: 2285 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Insertion Loss: - 0.95 dB
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX4998/MAX14998 high-speed passive switches
route one DisplayPort source between two possible
destinations or vice versa. The MAX4998 is used to
switch two-lanes plus AUX/HPD DisplayPort, and the
MAX14998 is used to switch four-lanes plus AUX/HPD
DisplayPort.
The MAX4998/MAX14998 feature two digital control
inputs (SEL1, SEL2) to switch signal paths.
The MAX4998/MAX14998 provide two digital control
inputs (SEL1, SEL2) to select the signal path between
the COM_ and NO_/NC_ channels. SEL1 selects high-
frequency switching, while SEL2 selects AUX/HPD. On
the MAX4998, switches 1 and 2 are high-frequency
MAX4998
23
24
25
26
27
28
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Two-Lane and Four-Lane DisplayPort Passive
PIN
Digital Control Inputs (SEL1, SEL2)
MAX14998
Switches with Separate AUX/HPD Control
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34
39
40
41
42
10
11
12
14
15
18
19
20
21
22
23
24
25
27
35
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Detailed Description
COM4+
COM5+
COM3-
COM4-
COM5-
NAME
NO0+
NC1+
NC0+
NO5+
NO4+
NC5+
NC4+
NO5-
NO4-
NO3-
GND
NC1-
NC0-
NC5-
NC4-
NC3-
EP
Analog Switch 1. Normally Open positive terminal.
Ground
Analog Switch 2. Normally Closed negative terminal.
Analog Switch 2. Normally Closed positive terminal.
Analog Switch 1. Normally Closed negative terminal.
Analog Switch 1. Normally Closed positive terminal.
Analog Switch 4. Common negative terminal.
Analog Switch 5. Common positive terminal.
Analog Switch 5. Common negative terminal.
Analog Switch 6. Common positive terminal.
Analog Switch 6. Common negative terminal.
Analog Switch 6. Normally Open negative terminal.
Analog Switch 6. Normally Open positive terminal.
Analog Switch 5. Normally Open negative terminal.
Analog Switch 5. Normally Open positive terminal.
Analog Switch 6. Normally Closed negative terminal.
Analog Switch 6. Normally Closed positive terminal.
Analog Switch 5. Normally Closed negative terminal.
Analog Switch 5. Normally Closed positive terminal.
Analog Switch 4. Normally Open negative terminal.
Analog Switch 4. Normally Closed negative terminal.
Exposed Pad. Internally connected to GND. Connect to a large plane to maximize
thermal performance. Not intended as an electrical part.
switches and switches 3 and 4 are both low-frequency
switches. On the MAX14998, switches 1, 2, 3, and 4 are
high-frequency switches and switches 5 and 6 are low-
frequency switches. The truth tables for the MAX4998/
MAX14998 are depicted in the Functional Diagrams/
Truth Tables. Drive SEL_ 0V to V
consumption.
The MAX4998/MAX14998 accept standard DisplayPort
signals to a maximum of (V
COM_+ channels are routed to either the NO_+ or NC_+
channels. Signals on the COM_- channels are routed
to either the NO_- or NC_- channels. The MAX4998/
MAX14998 are bidirectional switches, allowing COM_,
NO_, and NC_, to be used as either inputs or outputs.
FUNCTION
Pin Description (continued)
DD
Analog Signal Levels
- 1.8V). Signals on the
DD
to minimize power
7