AK4645AEZ Datasheet, PDF (9/85 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

[AK4645A]
Parameter
min
typ
max
Units
Headphone-Amp Characteristics: DAC → HPL/HPR pins, ALC=OFF, IVOL=0dB, DVOL=0dB; VBAT bit = “0”;
unless otherwise specified.
Output Voltage (Note 15)
HPG bit = “0”, 0dBFS, HVDD=3.3V, R_L=22.8Ω
1.58
1.98
HPG bit = “1”, 0dBFS, HVDD=5V, R_L=100Ω
2.40
3.00
HPG bit = “1”, 0dBFS, HVDD=3.3V, R_L=16Ω (Po=62mW)
-
1.0
2.38
Vpp
3.60
Vpp
-
Vrms
HPG bit = “1”, 0dBFS, HVDD=5V, R_L=16Ω (Po=70mW)
-
S/(N+D)
1.06
-
Vrms
HPG bit = “0”, −3dBFS, HVDD=3.3V, R_L=22.8Ω
57
67
HPG bit = “1”, −3dBFS, HVDD=5V, R_L=100Ω
-
75
HPG bit = “1”, 0dBFS, HVDD=3.3V, R_L=16Ω (Po=62mW)
-
20
HPG bit = “1”, 0dBFS, HVDD=5V, R_L=16Ω (Po=70mW)
-
65
S/N (A-weighted)
(Note 16)
80
90
(Note 17)
-
90
-
dBFS
-
dBFS
-
dBFS
-
dBFS
-
dB
-
dB
Interchannel Isolation
(Note 16)
65
75
(Note 17)
-
80
-
dB
-
dB
Interchannel Gain Mismatch
(Note 16)
-
(Note 17)
-
0.1
0.8
dB
0.1
0.8
dB
Load Resistance
16
-
-
Ω
Load Capacitance
Figure 2Í·C1
-
Figure 2Í·C2
-
-
30
pF
-
300
pF
Note 15. ग़ྗిѹ͸AVDDʹൺྫ͠·͢ɻ
Vout = 0.6 x AVDD(typ)@HPG bit = “0”, 0.91 x AVDD(typ)@HPG bit = “1”.
Note 16. HPG bit = “0”, HVDD=3.3V, R_L=22.8Ω.
Note 17. HPG bit = “1”, HVDD=5V, R_L=100Ω.
HP-Amp
HPL/HPR pin
47μF
Measurement Point
6.8Ω
C1 0.22μF
10Ω
C2 ^16Ω
Figure 2. ϔουϑΥϯΞϯϓग़ྗճ࿏
MS0986-J-00
-9-
2008/07