Document
[ASAHI KASEI]
[AK7730A]
AK7730A
24bit 2ch ADC
DSP
DSP:
-
-
: :
: : : :
RAM: RAM: RAM:
RAM: RAM:
:
24-bit (Data RAM)
27ns (768fs, fs=48kHz)
24 x 16
40-bit
24 / 24
16-bit
24-bit
34bit
4bit 24bit
1.2.3.4.6.8.15bit
1.2.3.4.8.15bit
768 x 32-bit
1024 x 16-bit
256 x 24-bit
48 x 13bit
72kbit
( 6144 x 12 bit / 3072 x 24 bit / 1024 x 24 bit + 4096 x 12bit )
8kHz 192kHz
: 768fs@48kHz, 192fs@192kHz (PLL /
( 6(8)ch ) : 16/20/24-bit,
256fs,384fs ( 8ch ) : 24-bit
)
ADC: 2 -
24-bit 64 x Over-sampling delta sigma
: 8kHz 96kHz
DR :
97dBA fs=48kHz
S/N :
98dBA fs=48kHz
S/(N+D) :
92dB fs=48kHz
Digital HPF (fc = 1Hz)
- EEPROM
2
-3
- CRC
- LRCLK,BITCLK
-:
+3.3V ±0.3V
- : -40°C~85°C
-:
48pin LQFP(0.5mm pitch)
[MS0302-J-00]
-1-
2004/05
[ASAHI KASEI]
[AK7730A]
EESEL=”L”
AINL+ AINLAINR+ AINR-
VREFH VREFL VCOM
AINL+ AINLAINR+ AINR-
VREFH VREFL VCOM
JX0/SDIN4A SDIN3/JX1
SDIN2/JX2
SDIN1
ADC
SWIA,SWQ4 SWQ1,SWQA,SWJX3 SWJX1
SDATA
SWIA
SDIN4 SDI.