USB Type-C/音频开关

BCT4321N

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.

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

APPLICATIONS
Cell Phones
Hi-Fi Audio Switching
USB 2.0 High Speed Data Switching
USB 3.x Type C Switching
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