AK4645AEZ Datasheet, PDF (1/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
AK4645A
Stereo CODEC with MIC/HP-AMP
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AK4645A͸ϚΠΫΞϯϓ͓ΑͼϔουϑΥϯΞϯϓΛ಺ଂͨ͠εςϨΦCODECͰ͢ɻAK4645A͸Ξφ
ϩάϛΩγϯάճ࿏Λ಺ଂ͓ͯ͠ΓɺPMP(ϙʔλϒϧϚϧνϝσΟΞϓϨʔϠ)΍ܞଳి࿩༻్ͷγε
ςϜͱ༰қʹΠϯλϑΣʔεΛऔΔ͜ͱ͕ՄೳͰ͢ɻύοέʔδ͸খܕͷ32pin QFN (4mm x 4mm)Λ
࠾༻ɺैདྷγεςϜͱൺֱ࣮ͯ͠૷໘ੵΛେ෯ʹ࡟͢·͠ݮɻ
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1. ࿥Իଆػೳ
• 4εςϨΦೖྗηϨΫλ
• εςϨΦϚΠΫೖྗ(ࠩಈ or γϯάϧΤϯυೖྗ)
• εςϨΦϥΠϯೖྗ
• ϚΠΫ༻ήΠϯΞϯϓ಺ଂ (+32dB/+26dB/+20dB or 0dB)
• Digital ALC (Automatic Level Control) ճ࿏಺ଂ
(+36dB ∼ −54dB, 0.375dB Step, Mute)
• ADCಛੑ: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)
S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
• ෩੾ΓԻϑΟϧλ
• εςϨΦڧײௐճ࿏
• Programmable EQ
2. ࠶ੜଆػೳ
• σΟδλϧσΟΤϯϑΝγεϑΟϧλ (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)
• όεϒʔετ
• ιϑτϛϡʔτ
• σΟδλϧϘϦϡʔϜ಺ଂ (+12dB ∼ −115.0dB, 0.5dB Step, Mute)
• Digital ALC (Automatic Level Control) ճ࿏಺ଂ
(+36dB ∼ −54dB, 0.375dB Step, Mute)
• εςϨΦڧײௐճ࿏
• Programmable EQ
• εςϨΦϥΠϯग़ྗ
- ಛੑ: S/(N+D): 88dB, S/N: 92dB
• εςϨΦϔουϑΥϯΞϯϓ಺ଂ
- HP-AMPಛੑ: S/(N+D): 65dB@7.5mW, S/N: 90dB
- ఆ֨ग़ྗ: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- ݯిON/OFF࣌ΫϦοΫϊΠζϑϦʔ
• ΞφϩάϛΩγϯά: 4εςϨΦೖྗ
3. ύϫʔϚωδϝϯτػೳ
4. ϚελΫϩοΫ:
֎෦ΫϩοΫϞʔυ
• प೾਺: 256fs, 384fs, 512fs or 1024fs (MCKI pin)
5. αϯϓϦϯάप೾਺:
• EXT Master/Slave Mode:
7.35kHz ∼ 48kHz (256fs), 7.35kHz ∼ 48kHz (384fs),
7.35kHz ∼ 26kHz (512fs), 7.35kHz ∼ 13kHz (1024fs)
6. γϦΞϧμPΠϯλϑΣʔε: 3ઢγϦΞϧ, I²Cόε (Ver 1.0, 400kHz Fast-mode)
7. ϚελʗεϨʔϒϞʔυ
8. ΦʔσΟΦΠϯλϑΣʔεϑΥʔϚοτ: MSB First, 2’s complement
• ADC : 16bitલ٧Ί, I²S, DSP Mode
• DAC : 16bitલ٧Ί, 16bitޙ٧Ί, 16-24bit I²S, DSP Mode
MS0986-J-00
-1-
2008/07