AK5388_09 Datasheet, PDF (1/31 Pages) Asahi Kasei Microsystems – 120dB 24-bit 192kHz 4-Channel ADC

[AK5388]
AK5388
120dB 24-bit 192kHz 4-Channel ADC
GENERAL DESCRIPTION
The AK5388 is a 24bit, 216kHz sampling 4-channel A/D converter for high-end audio systems. The
modulator in the AK5388 uses AKM’s Enhanced Dual Bit architecture, enabling the AK5388 to realize
high accuracy and low cost. The AK5388 achieves 120dB dynamic range and 110dB S/(N+D), and an
optional mono mode extends dynamic range to 123dB. The AK5388’s digital filter features a modified FIR
architecture that minimizes group delay while maintaining excellent linear phase response. So the device
is suitable for professional audio applications including recording, sound reinforcement, effects
processing, sound cards, and high-end A/V receivers. The AK5388 is available in 44pin LQFP package.
FEATURES
‡ Sampling Rate: 8kHz ~ 216kHz
‡ Full Differential Inputs
‡ S/(N+D): 110dB
‡ DR, S/N: 120dB(Mono Mode: 123dB)
‡ Short Delay Digital Filter (GD=12.6/fs)
• Passband: 0~21.648kHz (@fs=48kHz)
• Ripple: 0.01dB
• Stopband: 80dB
‡ Digital HPF
‡ Power Supply: 4.75 ~ 5.25V(Analog), 3.0 ~ 3.6V(Digital)
‡ Output format: 24bit MSB justified, I²S or TDM
‡ Cascade TDM I/F: 8ch/48kHz, 4ch/96kHz, 4ch/192kHz
‡ Master & Slave Mode
‡ Overflow Flag
‡ Power Dissipation: 575 mW (@fs=48kHz)
‡ Package: 44pin LQFP
AVDD1 VSS1 AVDD2 VSS6 DVDD1 VSS3 DVDD2 VSS4 VSS5
LIN1+
LIN1-
RIN1+
RIN1-
LIN2+
LIN2-
RIN2+
RIN2-
VCOM1
VCOM2
ΔΣ
Modulator
ΔΣ
Modulator
ΔΣ
Modulator
ΔΣ
Modulator
Decimation
Filter
Decimation
Filter
Decimation
Filter
Decimation
Filter
Voltage Reference
Audio
Interface
Clock Divider
LRCK
BICK
SDTO1
SDTO2
TDMIN
MSN
DIF
TDM0
TDM1
HPF
MONO
MCLK
VREFP1 VREFL1 _{VREFP2 VREFL2 OVF PDN CKS0 CKS2 CKS2}
MS1096-E-01
-1-
2009/08