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AK7757VQ Datasheet, PDF (15/24 Pages) Asahi Kasei Microsystems – 24bit 3ch ADC +4ch DAC + Mic Amp 内蔵 Audio DSP | |||
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[AK7757]
â ãã£ã¸ã¿ã«ãªã¼ãã£ãªã¤ã³ã¿ãã§ã¼ã¹ (SDIN1~2, SDOUT1~3)
1) SDIN1/2, SDOUT1/2/3
(Ta= Tmin~Tmax, AVDD=DVDD= 3.0V ~ 3.6V, DVDD18= 1.7V ~ 1.9V, AVSS=DVSS=0V, CL=20pF)
Parameter
I2S and PCM Interface Input Timing
Symbol min
typ
max
Unit
Delay Time from BICK âââ to LRCK (Note 30)
tBLRD
20
ns
Delay Time from LRCK to BICK âââ (Note 30)
tLRBD
20
ns
Serial Data Input Latch Setup Time
tBSIDS
80
ns
Serial Data Input Latch Hold Time
tBSIDH
80
ns
Delay Time from LRCK to Serial Data Output (Note 31) tLRD
80
ns
Delay Time from BICK âââ or âââto LRCK Output
tBSOD
80
ns
I2S and PCM Interface Output Timing SDOUT1/2
BICK Frequency
fBICK
64
fs
BICK Duty cycle
50
%
BICK âââããLRCKã¸ã®é
延æé
tMBL
-20
40
ns
ã·ãªã¢ã«ãã¼ã¿å
¥å ã©ããã»ããã¢ããæé
tBSIDS
80
ns
ã·ãªã¢ã«ãã¼ã¿å
¥å ã©ãããã¼ã«ãæé
tBSIDH
80
ns
Delay Time from LRCK to Serial Data Output (Note 31) tLRD
80
ns
Delay Time from BICK âââ or âââto LRCK Output
tBSOD
80
ns
Note 30. ãã®è¦æ ¼å¤ã¯LRCKã®ã¨ãã¸ã¨BICKã®ã¨ãã¸ãéãªããªãããã«è¦å®ãã¦ãã¾ãã
Note 31. I2Sãé¤ãã¾ãã
MS1489-J-01-PB
15
2013/05
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