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AK4954AEN Datasheet, PDF (15/26 Pages) Asahi Kasei Microsystems – 32bit Stereo CODEC with MIC/HP/SPK-AMP | |||
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[AK4954A]
DAC ãã£ã«ã¿ç¹æ§ (fs=44.1kHz)
(Ta = -30 ~ 85°C; AVDD=2.5 ~ 3.5V, DVDD =1.6 ⼠1.98V, TVDD=(DVDD-0.2) ~ 3.5V, SVDD=0.9 ⼠5.5V)
Parameter
Symbol
min
typ
max
Unit
DAC Digital Filter (LPF):
Passband (Note 33)
±0.05dB
PB
â6.0dB
0
-
20.0
kHz
-
22.05
-
kHz
Stopband (Note 33)
SB
24.1
-
-
kHz
Passband Ripple
PR
-
-
±0.05
dB
Stopband Attenuation
SA
54
-
-
dB
Group Delay (Note 34)
GD
-
22
-
1/fs
DAC Digital Filter (LPF) + SCF:
Frequency Response: 0 â¼ 20.0kHz (Note 33)
FR
-
±1.0
-
dB
DAC ãã£ã«ã¿ç¹æ§ (fs=96kHz)
(Ta = -30 ~ 85°C; AVDD=2.5 ~ 3.5V, DVDD =1.6 ⼠1.98V, TVDD=(DVDD-0.2) ~ 3.5V, SVDD=0.9 ⼠5.5V)
Parameter
Symbol
min
typ
max
Unit
DAC Digital Filter (LPF):
Passband (Note 33)
±0.05dB
PB
0
-
43.5
kHz
â6.0dB
-
48.0
-
kHz
Stopband (Note 33)
SB
52.5
-
-
kHz
Passband Ripple
PR
-
-
±0.05
dB
Stopband Attenuation
SA
54
-
-
dB
Group Delay (Note 34)
GD
-
22
-
1/fs
DAC Digital Filter (LPF) + SCF:
Frequency Response: 0 â¼ 40.0kHz (Note 33)
FR
-
±1.0
-
dB
Note 33. åæ¯å¹
ç¹æ§ã®å¨æ³¢æ°ã¯ fs (ãµã³ããªã³ã°ã¬ã¼ã)ã«æ¯ä¾ãã¾ããåå¿ç㯠1kHz ãåºæºã«ãã¾ãã
Note 34. ãã£ã¸ã¿ã«ãã£ã«ã¿ã«ããé
延æ¼ç®ã§ã32 ããããã¼ã¿ãå
¥åã¬ã¸ã¹ã¿ã«ã»ããããã¦ããã¢ãã
ã°ä¿¡å·ãåºåãããã¾ã§ã®æéã§ããããã°ã©ããã«ãã£ã«ã¿ (1 次 HPF + 4-band Equalizer + ALC +
Equalizer) ãééãããã¹ãé¸æããå ´åã® Group Delay 㯠IIR ãã£ã«ã¿ã«ããä½ç¸å¤åãç¡ãå ´å
ã§ä¸è¨è¨è¼ã®å¤ã«å¯¾ãã¦ã7/fs å¢å ãã¾ãã
MS1542-J-00-PB
- 15 -
2013/06
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