MAX14978ETO+ Maxim Integrated Products, MAX14978ETO+ Datasheet - Page 11

• Manufacturer Part Number: MAX14978ETO+
• Description: Analog Switch ICs USB 2.0/3.0 SWITCH High BW LVDS Switch
• Manufacturer: Maxim Integrated Products

Specifications of MAX14978ETO+

• On Resistance (max): 10 Ohms
• On Time (max): 250 ns
• Off Time (max): 50 ns
• Off Isolation (typ): - 17 dB
• Bandwidth: 950 MHz
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Supply Current: 60 uA
• Maximum Power Dissipation: 2857 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-42
• Off State Leakage Current (max): 250 nA
• Propagation Delay Time: 100 ps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN
33
34
35
37
38
—
COMD+
COMD-
COM0+
COM1+
COM0-
COM1-
SEL1
SEL2
EN
NAME
NOD+
NCD+
SEL1
V
EN
EP
CC
V
CC
ANALOG SWITCHES
ANALOG SWITCHES
SUPERSPEED USB
HI-SPEED USB
Active-Low Enable Input for Hi-Speed USB Switches. Drive EN high to put Hi-Speed USB switches in
high impedance. Drive EN low for normal operation.
Positive-Supply Voltage Input for Hi-Speed USB Switches. Bypass V
capacitor as close as possible to the device.
Digital Control Input for Hi-Speed USB Analog Switches
Hi-Speed USB Analog Switch, Normally Closed D+ Terminal
Hi-Speed USB Analog Switch, Normally Open D+ Terminal
Exposed Pad. EP is internally connected to GND. Connect EP to a large ground plane to maximize
thermal performance. EP is not intended as an electrical connection point.
MAX14978
GND
V
DD
SuperSpeed USB Passive Switch
NOD+
NCD+
NOD-
NCD-
NO0+
NC0+
NO0-
NC0-
NO1+
NC1+
NO1-
NC1-
(Low/Full/Hi/SuperSpeed)
FUNCTION
EN
0
0
1
Functional Diagram/Truth Table
SEL2
0
1
Pin Description (continued)
SUPERSPEED USB SWITCHES
SEL1
HI-SPEED USB SWITCHES
X
0
1
CC
NOD_
NO_
OFF
OFF
OFF
ON
ON
to GND with a 0.1FF ceramic
NCD_
OFF
OFF
ON
NC_
OFF
ON
COMD_
HIGH-Z
—
—
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