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ISL54215IRUZ-T 数据表(PDF) 8 Page - Intersil Corporation |
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ISL54215IRUZ-T 数据表(HTML) 8 Page - Intersil Corporation |
8 / 15 page 8 November 25, 2008 Detailed Description The ISL54215 device is a dual single pole/double throw (SPDT) analog switch that operates from a single DC power supply in the range of 2.5V to 5.0V. It was designed to function as a dual 2 to 1 multiplexer to select between USB differential data signals and audio L and R stereo signals. It comes in tiny µTQFN package for use in MP3 players, PDAs, cellular phones and other personal media players. The part consists of two 2.5 Ω audio switches and two 5Ω USB switches. The audio switches can accept signals that swing below ground. They were designed to pass audio left and right stereo signals, that are ground referenced, with minimal distortion. The USB switches were designed to pass high-speed USB differential data signals with minimal edge and phase distortion. The ISL54215 was specifically designed for MP3 players, personal media players and cellular phone applications that need to combine the audio headphone jack and the USB Typical Application Block Diagrams FIGURE 8. LOGIC CONTROL VIA MICROPROCESSOR FIGURE 9. LOGIC CONTROL VIA VBUS VOLTAGE FROM COMPUTER OR USB HUB ISL54215 USB TRANSCEIVER HIGH-SPEED AUDIO COM - COM + IN GND D- D+ R L VDD CTRL LOGIC CONTROL µCONTROLLER 4M Ω CODEC VBUS 3.3V 4M Ω ISL54215 USB TRANSCEIVER HIGH-SPEED AUDIO COM - COM + IN GND D- D+ R L VDD CTRL LOGIC CONTROL µCONTROLLER 4M Ω CODEC VBUS 3.3V 4M Ω 500k Ω ISL54215 |
类似零件编号 - ISL54215IRUZ-T |
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类似说明 - ISL54215IRUZ-T |
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