BCT4321N
USB2.0 Hi-Speed and Audio Switches
With Negative Signal Capability
BCT4321N
USB2.0 Hi-Speed and Audio Switches with Negative
Signal Capability
GENERAL DESCRIPTION
The BCT4321N is a double-pole double-throw
(DPDT) analog switch with multiplexes USB2.0
and negative signal audio analog signals. One
Channel has wide bandwidth and low bit-to-bit
skew allow it to pass high-speed differential
signals with good signal integrity. Another channel
has ultra-Low on resistance (2.5Ω). Each switch is
bidirectional and offers little or no attenuation of
the signals at the outputs. Industry-leading
advantages include a propagation delay of less
than 250ps, resulting from its low channel
resistance and low I/O capacitance. Their high
channel-to-channel crosstalk rejection results in
minimal noise interference.
FEATURES
VCC Operating Range: 2.7V to 5.0V
-3dB Bandwidth: 720MHz(USB Mode)
Off Isolation: 66dB @1MHz
Crosstalk Rejection: 86dB @1MHz
Low ON Resistance:
2.5-ohm at VCC = 3.6 V (Audio Mode)
8.5-ohm at VCC = 3.6 V (USB Mode)
Analog Signal Range:
VCC-6.5V to VCC-2 (Audio Mode)
0V to VCC (USB Mode)
Audio Channel Shunt Resistors for Pop & Click
Noise Reduction
Power-off Protection on Common D+/R，D-/L
Ports
The BCT4321N is available in Green
QFN1.4X1.8-10 packages. It operates over an
ambient temperature range of -40°C to +85°C.
APPLICATIONS
Cell Phones
Hi-Fi Audio Switching
USB 2.0 High Speed Data Switching
USB 3.x Type C Switching
ORDERING INFORMATION
Order Number
Package Type
BCT4321NETB-TR
QFN1.4X1.8-10
Temperature Range
-40°C to +85°C
Marking
AQX
QTY/Reel
3000
REV2.2
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