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This literature is subject to all applicable copyright laws and is not for resale in any manner.FSA2000 Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier March 2013 FSA2000 Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier Description Features The FSA2000 is a low-cost integrated HS-USB and audio Switch Type USB + Headphone Amplifier switch that incorporates an audio headphone amplifier. This Switch Mechanism Auto (USB with V ) BUS solution eliminates many of the discrete parts currently used USB Detection YES in stereo headset applications. It provides stereo headphone USB 2.0 High Speed & drivers designed to operate with a ground-centered output USB Full-Speed Compliant signal. This allows for the removal of large and expensive Audio Amplifier Class AB DC blocking capacitors. The headphone drivers are capable of driving up to 40mW per channel. Amplifier Output Power 40mW (32 ) RMS RMS Amplifier Gain 0dB THD+N 0.1% Related Resources SNR -90dB FSA2000 Demonstration Board PSRR -95dB FSA2000 Evaluation Board V 2.7 to 4.3V CC FDB323 FSA2000 Demonstration Board User Guide I 3mA CC (Audio) FEB322 FSA2000 Evaluation Board User Guide I 6A CC(USB) AN-8032 Demonstration Board Quick-Start Guide 16- Lead UMLP 1.80 x 2.60 x Package 0.55mm, 0.40mm pitch AN-8031 Utilizing the FSA2000 MUTE Function to Reduce Audio Click and Pop Ordering Information FSA2000UMX For samples, questions, or board requests please contact: Analog.Switch fairchildsemi.com. Applications MP3 Portable Media Players Cellular Phones, Smartphones Typical Application Auto Switches to USB when V present BUS USB Data FS / HS USB Cable D+ USB TX D+/ R D- V+ + 0.1F OR - D-/ L V- R Audio V+ + 0.1F Subsystem 32 32 L - V- Headphone Eliminates large Amplifiers 220F capacitors Figure 1. Mobile Phone Example 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 Rev. 1.0.0