Datenblatt-Suchmaschine für elektronische Bauteile |
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FAN3800MLP24X Datenblatt(PDF) 1 Page - Fairchild Semiconductor |
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FAN3800MLP24X Datenblatt(HTML) 1 Page - Fairchild Semiconductor |
1 / 9 page October 2007 © 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3800 • Rev. 1.0.0 FAN3800 — Mono / Stereo Audio Amplifier with Microphone Pre-Amplifier and EMU Interface Features Regulated positive supply Negative supply generator allows ground-centered output swing Dual speaker drivers with mono/stereo switch capability Capable of driving 16mWRMS per channel Complete external microphone interface Enhanced mini-USB bus detection and interface circuitry Manual and remote send-end switch interface Pop and click suppression Single 2.7V to 4.5V operation 2kV ESD (HBM) protection MLP 24-pin package Applications One-piece stereo/mono headset with microphone EMU to 3.5mm stereo headphone adapter EMU to 2.5 or 3.5 adapter for stereo headset with microphone Description The FAN3800 is a low-cost solution that integrates the many discrete parts currently used in stereo headset applications. It provides mono / stereo speaker drivers and a complete microphone interface. Additionally, the FAN3800 allows headset detection and identification through a 5-pin, enhanced mini-USB (EMU) bus. Manual and remote send-end switching is supported. The FAN3800 speaker drivers are designed to operate with a ground-centered output signal. This allows removal of large and expensive DC blocking capacitors. In addition, it allows interfacing with externally powered speakers. The speaker drivers are capable of driving up to 16mWRMS per channel. FAN3800 delivers a complete solution for interfacing an external microphone. The microphone interface provides a regulated, high PSRR supply, differential input sense to single-ended output driver amplifiers, and output muting. Gain is fixed at 36dB and can be attenuated externally with a resistor divider network. Send-end switching automatically routes the microphone output to the D+ output. When activated, the speakers switch from stereo to mono mode, both driven by the D- input. Pop and click noise is minimized during switching. Send-end information can be generated manually through an external switch or through the EMU bus interface. ID MUTE BYPASS MIC+ MIC- MICSUP CPOUT V- SPKLOUT VS SPKROUT D+ MLP-24 4x4mm Figure 1. FAN3800 Pin Out Ordering Information Part Number Pb-Free Package Packing Method FAN3800MLP24X 24-Pin Molded Leadless Package (MLP) Pack |
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