产品名称：双刀双掷模拟开关

产品型号：BCT4222B

产品描述：

The BCT4321 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.

特性：

? VCC Operating Range: 1.65V to 4.2V

? Low ON Resistance: 1.0-ohms at 4.2V (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/BCT4321A USB Mode)

? Analog Signal Range:

-2.0V (BCT4321N Audio Mode)

-0.6V (BCT4321A Audio Mode)

? Replace for FSA321

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