AK4386ET Datasheet, PDF (11/18 Pages) Asahi Kasei Microsystems – 100dB 96kHz 24-Bit 2ch ΔΣ DAC

[AK4386]
■ σΟΤϯϑΝγεϑΟϧλ
IIRϑΟϧλʹΑΔfs=44.1kHzରԠͷσΟΤϯϑΝγεϑΟϧλ(50/15μsಛੑ)Λ಺ଂ͍ͯ͠·͢ɻೖྗσʔλ
ʹରͯ͠DEM pin = “H”͕બ୒͞Εͨ࣌ɺσΟΤϯϑΝγεϑΟϧλ͕༗ޮʹͳΓ·͢ɻHalf Speed, Double
Speed Mode࣌͸ɺσΟΤϯϑΝγεϑΟϧλ͸OFFͰ͢ɻ


Mode
DFS1 pin DFS0 pin DEM pin De-emphasis Filter
Normal Speed
L
L
L
L
L
H
Double Speed
L
H
*
Half Speed
H
L
*
Auto
H
H
L
H
H
H
OFF
ON
OFF
OFF
OFF
ON (Note)
Table 4. De-emephasis Filter (*: Don’t care)


Note. Normal speed࣌ɺfs=44.1kHzରԠͷσΟΤϯϑΝγεϑΟϧλ͕༗ޮʹͳΓ·͢ɻ
Half Speed, Double Speed Mode࣌͸ɺσΟΤϯϑΝγεϑΟϧλ͸OFFͰ͢ɻ
■ ύϫʔμ΢ϯػೳ
AK4386͸PDN pinΛ“L”ʹ͢Δ͜ͱͰύϫʔμ΢ϯϞʔυʹͰ͖·͢ɻ͜ͷ࣌ɺಉ࣌ʹσΟδλϧϑΟϧλ͕
Ϧηοτ͞Ε·͢ɻ͜ͷϦηοτ͸ిݯ౤ೖ࣌ʹඞͣҰ౓ߦͬͯԼ͍͞ɻ
AK4386͸PDN pin = “L”࣌ɺDACग़ྗ͸Hi-ZʹͳΓ·͢ɻ·ͨɺಈ࡞த(PDN pin = “H”)ʹMCLK͕ࢭ·ͬͨ৔
߹ʹ͸ɺࣗಈతʹ಺෦ύϫʔμ΢ϯ͕ߦΘΕɺΞφϩάग़ྗ͸VCOMిѹΛग़ྗ͠·͢ɻMCLKΛࢭΊΔ৔
߹ʹ͸ɺ“H”·ͨ͸“L”ݻʹఆͯ͠Լ͍͞ɻ
Mode
0
1
2
PDN pin
L
H
MCLK
DAC Output
Don’t care
Hi-Z
Supplied
Normal Output
Not Supplied VCOM Voltage
Table 5. Power down mode
State
Full Power Down
Normal
Power Save
MS0280-J-01
- 11 -
2008/10