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AK4641VN Datasheet(PDF) 1 Page - Asahi Kasei Microsystems |
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AK4641VN Datasheet(HTML) 1 Page - Asahi Kasei Microsystems |
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1 / 51 page  ASAHI KASEI [AK4641] MS0301-E-00 2004/05 - 1 - GENERAL DESCRIPTION The AK4641 is targeted at PDA and other low-power, small size applications. It features a 16bit Stereo CODEC with a built-in Microphone-Amplifier and 16bit Mono CODEC for Bluetooth Interface. Input circuits include Microphone-Amplifier and ALC (Auto Level Control) circuit. The AK4641 is available in a 36pin QFN, utilizing less board space than competitive offerings. FEATURES 1. Recording Function of 16bit Stereo CODEC • Mono Input • 2 to 1 Selector (Internal and External MIC) • 1st MIC Amplifier: +20dB or 0dB • 2nd Amplifier with ALC: +27.5dB ∼ −8dB, 0.5dB Step • ADC Performance: S/(N+D): 81dB, S/N: 86dB • Sampling Rate: 7kHz ∼ 48kHz • Audio Interface Format: I2S, 16bit MSB justified 2. Playback Function of 16bit Stereo CODEC • Digital De-emphasis Filter (tc=50/15µs, fs=32kHz, 44.1kHz, 48kHz) • Digital Volume (0dB ∼ −127dB, 0.5dB Step, Mute) • 5 Band Equalizer • Stereo Line Output - Performance: S/(N+D): 86dB, S/N: 90dB • Mono Line Output - Differential Output - Performance: S/(N+D): 86dB, S/N: 93dB • AUX Input - Differential Input - +24dB ∼ −21dB, 3dB step • Sampling Rate: 7kHz ∼ 48kHz • Audio Interface Format: I2S, 16bit MSB justified, 16bit LSB justified 3. 16bit Mono CODEC • Analog Mix Path for Bluetooth Interface • Sample Rate: 8kHz ∼ 16kHz • Audio Interface Format: Short/Long Frame, I2S, 16bit MSB justified 4. Power Management 5. Master Clock: 1.792MHz ∼ 12.288MHz 6. Control mode: I 2C Bus 7. Ta = −10 ∼ 70°C 8. Power Supply: 2.6V ∼ 3.6V (typ. 3.3V) 9. Power Supply Current: 17mA 10. Package: 36pin QFN (0.5mm pitch) AK4641 16-Bit ∆Σ CODEC with Bluetooth Interface |
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