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AK4640VG Datasheet(PDF) 1 Page - Asahi Kasei Microsystems |
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AK4640VG Datasheet(HTML) 1 Page - Asahi Kasei Microsystems |
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1 / 76 page  ASAHI KASEI [AK4640] MS0273-E-00 2004/03 - 1 - GENERAL DESCRIPTION The AK4640 targeted at PDA and other low-power, small size applications. It features a 16bit stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Speaker-Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit. The AK4640 is available in a smaller 57pin BGA in addition to a 52pin QFN that has compatibility with the AK4534/8, utilizing less board space than competitive offerings. FEATURES 1. Resolution : 16bits 2. Recording Function • 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) : 79dB, DR, S/N : 83dB 3. Playback Function • Digital De-emphasis Filter (tc=50/15µs, fs=32kHz, 44.1kHz, 48kHz) • Digital Volume (0dB ∼ −127dB, 0.5dB Step, Mute) • Headphone-Amp - S/(N+D) : 70dB, S/N : 90dB - Output Power : 15mW@16 Ω (HVDD=3.3V) - Click Noise Free at Power ON/OFF • Mono Speaker-Amp with ALC - S/(N+D) : 64dB@150mW, S/N : 90dB - BTL Output - ALC circuit - Output Power : 300mW@8 Ω, THD+N=10% (HVDD=3.3V) • Mono and Stereo Beep Inputs 4. Phone I/F • Full-differential AUX Input • Full-differential Mono Output 5. Power Management 6. Master Clock (1) PLL Mode • Frequencies : 11.2896MHz, 12MHz and 12.288MHz • Input Level : CMOS (2) External Clock Mode • Frequencies : 1.792MHz ∼ 12.288MHz 7. Output Master Clock Frequencies : 32fs/64fs/128fs/256fs 8. Sampling Rate (1) PLL Mode • 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz (2) External Clock Mode • 8kHz ∼ 48kHz 9. Control mode: 4-wire Serial / I 2C Bus 10. Master/Slave mode 16-Bit ∆Σ CODEC with MIC/HP/SPK-AMP AK4640 |
Similar Part No. - AK4640VG |
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Similar Description - AK4640VG |
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