AK7754 Datasheet, PDF (11/26 Pages) Asahi Kasei Microsystems – Audio DSP with Stereo CODEC + MIC/HP-AMP

[AK7754]
■ DAC Characteristics
(Ta=25ºC; AVDD=DVDD=HVDD=3.3V, DVDD18=1.8V; VSS1=VSS2=VSS3=VSS4=0V; BICK1=64fs; Signal
frequency 1kHz; Measurement frequency=20Hz~20kHz, fs=48kHz, PMSRC=PMHPL=PMHPR bits = “0”, CKM mode
6 (CKM[2:0]=6h, Unless otherwise specified.)
Parameter
min
typ
max
Unit
Stereo Resolution
24
Bits
DAC _{Dynamic Characteristics; Stereo DAC→OUTL/R pins VOLDAL/R=18h(0dB) LODIF=“0”}
S/(N+D)
(0dBFS)
80
91
dB
Dynamic Range (A-weight)
88
96
dB
S/N
(A-weight)
88
96
dB
Inter-Channel Isolation (fin=1kHz) (Note 14)
90
110
dB
DC accuracy
Channel Gain Mismatch
0.0
0.5
dB
Analog Volume Characteristics
Gain Amount ^Min
Max
0.0
dB
28.0
dB
Step width
2.0
dB
Analog Output
Output Voltage
Single-End
2.06
2.17
2.28
Vpp
(Note 15)
Differential
±2.06
±2.17
±2.28
Vpp
Load Resistance
10
kΩ
Load Capacitance
30
pF
Note 14. Inter-channel isolation between Lch and Rch of the DAC.
Note 15. Full scale output voltage. The output voltage is proportional to AVDD. Vout=0.67 x AVDD (typ.)
MS1138-E-01-PB
11
2012/03