AK4645EN Datasheet, PDF (1/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
AK4645
Stereo CODEC with MIC/HP-AMP
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AK4645͸ϚΠΫΞϯϓ͓ΑͼϔουϑΥϯΞϯϓΛ಺ଂͨ͠εςϨΦCODECͰ͢ɻAK4645͸Ξφϩ
άϛΩγϯάճ࿏ͱPLLΛ಺ଂ͓ͯ͠ΓɺPMP(ϙʔλϒϧϚϧνϝσΟΞϓϨʔϠ)΍ܞଳి࿩༻్ͷ
γεςϜͱ༰қʹΠϯλϑΣʔεΛऔΔ͜ͱ͕ՄೳͰ͢ɻύοέʔδ͸খܕͷ32pin QFNΛ࠾༻ɺैདྷ
γεςϜͱൺֱ࣮ͯ͠૷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): 70dB@7.5mW, S/N: 90dB
- ఆ֨ग़ྗ: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- ݯిON/OFF࣌ΫϦοΫϊΠζϑϦʔ
• ΞφϩάϛΩγϯά: 4εςϨΦೖྗ
3. ύϫʔϚωδϝϯτػೳ
4. ϚελΫϩοΫ:
(1) PLLϞʔυ
• प೾਺: 11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz, 19.2MHz, 24MHz,
26MHz, 27MHz (MCKI pin)
1fs (LRCK pin)
32fs or 64fs (BICK pin)
(2) ֎෦ΫϩοΫϞʔυ
• प೾਺: 256fs, 512fs or 1024fs (MCKI pin)
5. ϚελΫϩοΫग़ྗप೾਺: 32fs/64fs/128fs/256fs
6. αϯϓϦϯάप೾਺:
• PLL Slave Mode (LRCK pin): 7.35kHz ∼ 48kHz
• PLL Slave Mode (BICK pin): 7.35kHz ∼ 48kHz
• PLL Slave Mode (MCKI pin):
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
MS0543-J-00
-1-
2006/09