October, 2010, Rev1.1
BCT4717
4.0Ω, 300MHz Bandwidth, Dual SPDT Analog Switch
GENERAL DESCRIPTION
The BCT4717 is a dual, bidirectional,
single-pole/double- throw (SPDT) CMOS analog switches
designed to operate from a single +1.8V to +5.5V supply. It
features high-bandwidth (300MHz) and low ON-resistance
(4.0Ω typ), Targeted applications for audio switching.
BCT4717 features guaranteed on-resistance matching
(0.3Ω max) between switches and guaranteed on-resistance
flatness over the signal range (2.3Ω TYP). This ensures
excellent linearity and low distortion when switching audio
signals.
The BCT4717 is a committed dual single-pole/double
-throw (SPDT) that consist of two normally open (NO) and
two normally close (NC) switches. This configuration can
be used as a dual 2-to-1 multiplexer.
BCT4717 is available in WQFN-10 package.
FEATURES
− Voltage Operation : 1. 8 V to 5. 5 V
− On-Resistance: 4.0Ω (typ) at 5.0V
− High Bandwidth: 300 MHz
− Fast Switching Time
tON 25 ns
tOFF 25 ns
− High Off-Isolation: 57dB at 10MHz
− Low Crosstalk: 99dB at 10MHz
− Rail-to-Rail Operation
− TTL/CMOS Compatible
− Break-Before-Make Switching
− Extended Industrial Temperature Range:
–40°C to 85°C
− WQFN-10 Packages
APPLICATIONS
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Cell Phones
PDAs
MP3s
FUNCTION TABLE
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
Switches Shown For Logic “0” Input
PIN CONFIGURATIONS（TOP VIEW）
COM1 3
IN1 4
NC1 5
NO1 V+
21
67
GND NC2
WQFN-10
10 NO2
9 COM2
8 IN2
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