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ISL54006 数据表(PDF) 8 Page - Intersil Corporation |
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ISL54006 数据表(HTML) 8 Page - Intersil Corporation |
8 / 15 page 8 FN6514.2 October 30, 2007 ISL54006 Typical Application Circuit and Block Diagram Detailed Description The Intersil ISL54003, ISL54005, and ISL54006 family of devices are integrated audio power amplifier systems designed to provide quality audio, while requiring minimal external components. The low 0.4% THD+N ensures clean, low distortion amplification of the audio signals. The devices are designed to operate from a single +2.7V to +5V power supply. All devices are offered in a 20 Ld 4x4 TQFN package. Targeted applications include battery powered equipment such as cell-phones, MP3 players, and games/toys. These parts contain one class AB BTL type power amplifier for driving an 8 Ω mono speaker and two class AB single-ended (SE) type amplifiers for driving 16 Ω or 32Ω headphones. The BTL when using a 5V supply is capable of delivering 800mW (typ) with 0.4% THD+N and 941mW (typ) with 1% THD+N of continuous average power into an 8 Ω BTL speaker load. When the speaker load is connected across the positive and negative terminals of the BTL driver the voltage is doubled across the load and the power is quadrupled. Each SE amplifier when using a 5V supply is capable of delivering 15mW (typ) with 0.07% THD+N and 50mW (typ) with 0.3% THD+N of continuous average power into a 32 Ω headphone speaker. When in Mono Mode (BTL driver active) these devices automatically mix the active left and right audio inputs and send the combined signal to the BTL driver. In Headphone Mode the active right channel input is sent to the right headphone speaker and the active left channel is sent to the left headphone speaker. The ISL54005 and ISL54006 feature a 2:1 stereo input multiplexer front-end. This allows selection between two stereo sources. The INS control pin determines which stereo input is active. Applying logic “0” to the INS control pin selects stereo input 1 (R1 and L1). Applying logic “1” to the INS control pin selects stereo input 2 (R2 and L2). The ISL54006 has the capablity of mixing the two stereo inputs. When in MIX Mode and HEADPHONE Mode, the part mixes the R1 input with the R2 input and sends the combined signal to the HpR headphone driver and it mixes the L1 input with the L2 input and sends the combined signal to the HpL headphone driver. When in MIX Mode and MONO Mode, it mixes all four inputs (R1 + R2 + L1 + L2) and sends the combined signal to the BTL mono driver. These parts have headphone sense input circuitry that detects when a headphone jack has been inserted and automatically switches the active audio inputs from the mono BTL output driver to the headphone drivers. These parts also feature a logic control pin (HO) that can override the sense input circuitry. CLICK AND POP LOGIC CONTROL BIAS THERMAL PROTECTION SD INS MIX IN1R IN2R IN1L IN2L REF SPK+ SPK- HpR HpL GND VDD CREF MICRO RIGHT 1 AUDIO RIGHT 2 AUDIO LEFT 1 AUDIO SE SE BTL HO HD HEADPHONE JACK 10k Ω VDD LEFT 2 AUDIO 1µF 0.1µF 0.22µF 0.22µF 0.22µF 0.22µF MUX/ 100k Ω CONTROLLER ROUTER/ MIXER ISL54003, ISL54005, ISL54006 |
类似零件编号 - ISL54006 |
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类似说明 - ISL54006 |
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