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 (1.0 Ω) . 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.

♦ VCC Operating Range: 1.65V to 5.0V

♦ Low ON Resistance: 1.0-ohms at 5.0V (Audio Mode )

♦ Rail-to-Rail Signal Range

♦ ON-Resistance Matching: 0.2 Ω (Audio Mode)

♦ ON-Resistance Flatness: 0.1Ω (Audio Mode)

♦ High Off Isolation: 57dB at 10MHz

♦ 54dB (10MHz) Crosstalk Rejection

♦ Break-Before-Make Switching

♦ Power-off Protection on Common D+/R，D-/L Ports （BCT4321N）

♦ -3dB Bandwidth: 720MHz(BCT4321N)

♦ Analog Signal Range: -2.0V (BCT4321N Audio Mode)

♦ Replace for FSA321

♦ Space-Saving, 10-Pin QFN 1.4mmX1.8mm

Cell Phones/Digital Still Cameras/PDAs and Palmtop Devices/MP3/MP4 Players