AK4695 Datasheet, PDF (11/107 Pages) Asahi Kasei Microsystems – 24bit 4ch CODEC with MIC/HP/SPK/LINE-AMP

[AK4695]
Parameter
min
typ
max
Unit
DAC Characteristics:
Resolution
-
-
24
Bits
Stereo Line Output A Characteristics: DACA → LOUTA/ROUTA pins (Measurement Point 1; Note 20),
ALC=DRC=OFF, IVOL=DVLA=0dB, LVOL= +3.2dB, R_L=1k+22k
Output Voltage
0dBFS, LVOL=-0.4dB (Note 18)
-10dBFS, LVOL=+3.2dB
-4.2
-10.6
-3.2
-9.6
-2.2
dBV
-8.6
dBV
0dBFS, LVOL=-0.4dB
72
87
-
dB
S/(N+D)
-2dBFS, LVOL=+3.2dB
40
-
-
dB
-10dBFS, LVOL=+3.2dB
69
84
-
dB
S/N (A-weighted)
LVOL=-0.4dB
S=-10dBFS, LVOL=+3.2dB
85
76
95
86
-
dB
-
dB
Interchannel Isolation
85
100
-
dB
Interchannel Gain Mismatch
-
0
0.5
dB
PSRR (fin = 1kHz) (Note 19)
-
50
-
dB
Load Resistance (R_L) (Note 20)
10
-
-
k
Load Capacitance (C_L1) (Note 20)
Load Capacitance (C_L2) (Note 20)
-
-
30
pF
-
-
500
pF
Crosstalk (Note 21)
-
-100
-
dB
Headphone-Amp Characteristics: DACB → HPL, HPR pins, ALC=DRC=OFF, IVOL=DVLB= 0dB,
DACAST bit “1”, R_L=16
Output Voltage (Note 22)
0dBFS
-3dBFS
-
0.7
-
1.26
1.40
1.54
S/(N+D) (0dBFS)
0dBFS
-3dBFS
-
70
-
55
75
-
S/N (A-weighted)
87
97
-
Interchannel Isolation
65
80
-
Interchannel Gain Mismatch
-
0
0.8
Output Offset Voltage (Note 23)
-1
0
+1
(Note 24)
-
50
-
PSRR (fin = 1kHz)
(Note 25)
-
60
-
(Note 26)
-
80
-
Load Resistance
16
-
-
Load Capacitance
-
-
300
Crosstalk (Note 27)
-
-60
-
Vrms
Vpp
dB
dB
dB
dB
dB
mV
dB
dB
dB

pF
dB
Note 18. The full-scale output voltage is proportional to AVDD. typ. (0.70 x AVDD) Vpp
Note 19. PSRR is applied to AVDD or DVDD with 100mpVpp sine wave.
Note 20. Measured at measurement points in Figure 3.
Measurement point 1 Measurement point 2
1μF
1k
Line Output
CL1
CL2
RL
Figure 3. Load Resistance R_L & Load Capacitance C_L1, C_L2
Note 21. A recording cross talk (MPWR on, MGAIN=+21dB, the AUXINL/R inputs are coupled by 1μF and a 600
resistor is connected between VSS1 and the AUXINL/R pins.) of DAC and LINE output (LVOL=+3.2dB,
0dBFS). (The reference voltage is the full-scale output voltage.)
Note 22. The full-scale output voltage is proportional to AVDD. typ. (0.707 x AVDD) Vpp
Note 23. -1.5mV(min) and +1.5mV(max) when AVDD=3.5V.
Note 24. PSRR is applied to AVDD with 100mpVpp sine wave.
Note 25. PSRR is applied to SVDD with 100mpVpp sine wave.
Note 26. PSRR is applied to DVDD with 100mpVpp sine wave.
Note 27. A recording cross talk (MPWR on, MGAIN=+21dB, the AUXINL/R inputs are coupled by 1μF and a 600
resistor is connected between VSS1 and the AUXINL/R pins.) of DAC and HP output (0dBFS). (The reference
voltage is full-scale output voltage.)
MS1463-E-01
- 11 -
2014/12