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AK4635 Datasheet(PDF) 1 Page - Asahi Kasei Microsystems |
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AK4635 Datasheet(HTML) 1 Page - Asahi Kasei Microsystems |
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1 / 81 page  [AK4635] Rev. 0.6 2007/10 - 1 - GENERAL DESCRIPTION The AK4635 is a 16-bit mono CODEC with Microphone-Amplifier, Speaker-Amplifier and Video- Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Automatic Level Control) circuit. Output circuits include a Speaker-Amplifier and Mono Line Output. Video circuits include a LPF and Video-Amplifier. The AK4635 suits a moving picture of Digital Still Camera and etc. This speaker-Amplifier supports a Piezo Speaker. The AK4635 is housed in a space-saving 29-pin Wafer Level CSP 2.5mm x 3.0mm package. FEATURE 1. 16-Bit Delta-Sigma Mono CODEC 2. Recording Function • 1ch Mono Input • MIC Amplifier: (0dB/+3dB/+6dB/+10dB/ +17dB/+20dB/+23dB/+26dB/+29dB/+32dB) • Digital ALC (Automatic Level Control) (+36dB ∼ -54dB, 0.375dB Step, Mute) • ADC Performance (MIC-Amp=+20dB) - S/(N+D): 84dB - DR, S/N: 86dB • Wind-noise Reduction Emphasis • 5 band notch Filter 3. Playback Function • Digital ALC (Automatic Level Control) (+36dB ∼ -54dB, 0.375dB Step, Mute) • Mono Line Output: S/(N+D) : 85dB, S/N : 93dB • Mono Class-D Speaker-Amp - BTL Output - Output Power: 400mW @ 8 Ω (SVDD=3.3V) - S/(N+D): 55dB (150mW@8 Ω) • Beep Generator 4. Video Function • A Composite Video Input • Gain Control (-1.0dB ∼ +10.5dB, 0.5dB Step) • Low Pass Filter • A Video-Amp for Composite Video Signal(+6dB) • DC Direct Output or Sag Compensation Output 5. Power Management 6. PLL Mode: • Frequencies: 12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin) 1fs (FCK pin) 16fs, 32fs or 64fs (BICK pin) 7. EXT Mode: • Frequencies: 256fs, 512fs or 1024fs (MCKI pin) 8. Sampling Rate: • PLL Slave Mode (FCK pin): 7.35kHz ~ 48kHz • PLL Slave Mode (BICK pin): 7.35kHz ~ 48kHz • PLL Slave Mode (MCKI pin): AK4635 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP = Preliminary = |
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