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.

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

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

ORDERING INFORMATION
Order Number
Package Type
Temperature Range
Marking
QTY/Reel
BCT4321NETB-TR
QFN1.4X1.8-10
-40°C to +85°C
AQX
3000
Product Manual