UM4258Q Datasheet, PDF (1/14 Pages) Union Semiconductor, Inc. – 4.5Ω 300MHz Bandwidth Dual SPDT Analog Switch

UM4258Q
4.5Ω 300MHz Bandwidth Dual SPDT Analog Switch
UM4258Q QFN10 1.80×1.40
General Description
The UM4258Q low-voltage, low on-resistance (R_ON), dual single-pole/double-throw (SPDT)
analog switch operates from a single +1.8V to +5.5V supply. The device is designed for USB
1.1/2.0 and audio switching applications.
The UM4258Q features two 4.5Ω R_ON (max) SPDT switches with 1.2Ω flatness and 0.3Ω
matching between channels. The switch offers break-before-make switching (1ns) with t_ON < 80ns
and t_OFF < 40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to
+3.6V supply.
The UM4258Q is packaged in a 1.80mm ×1.40mm QFN10 package, which significantly reducing
the required PC board area.
Applications
Features
 USB 1.1/2.0 Signal Switching Circuits  2ns (max) Differential Skew
 Battery-Operated Equipment
 -3dB Bandwidth: 300MHz
 Audio/Video-Signal Routing
 Low 15pF On-Channel Capacitance
 Headphone Switching
 Single-Supply Operation from +1.8V to
 Low-Voltage Data-Acquisition
+5.5V
Systems
 Sample-and-Hold Circuits
 Cell Phones
 4.5Ω R_ON (max) Switches
0.3Ω (max) R_ON Match (+3.0V Supply)
1.2Ω (max) Flatness (+3.0V Supply)
 PDAs
 Rail-to-Rail Signal Handling
 High Off-Isolation: -55dB (10MHz)
 Low Crosstalk: -80dB (10MHz)
 Low Distortion: 0.03%
 +1.8V CMOS-Logic Compatible
 < 0.5nA Leakage Current at +25°C
Pin Configurations
Top View
COM1 3
IN1 4
NC1 5
NO1 V+
2
1
6
7
GND NC2
10 _NO2
9 COM2
8 IN2
M: Month Code
UM4258Q
QFN10 1.80×1.40
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http://www.union-ic.com Rev.02 Sep.2013
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