AK4691EG AKM [Asahi Kasei Microsystems], AK4691EG Datasheet - Page 10

• Manufacturer Part Number: AK4691EG
• Description: 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

Parameter
DAC Analog Output characteristics: DAC
Resolution
S/(N+D) (0dBFS)
DR (-60dBFS, A-Weighted)
S/N (A-Weighted)
Output Voltage
Interchannel Isolation
Interchannel Gain Mismatch
Load Resistance
Load Capacitance
Headphone-Amp Characteristics: DAC → HPL/HPR pins, ALC=OFF, IVOL=DVOL=0dB
Output Voltage
S/(N+D)
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Load Resistance
Load Capacitance
Note 22. When the output pin drives some capacitive load, some resistor should be added in series between output pin and
Note 23. Output voltage is proportional to AVDD voltage. LOUT, ROUT = typ. (0.6 x AVDD) Vpp @LVOL = 0dB.
Note 24. Output voltage is proportional to AVDD voltage.
Note 25. HPG bit = “0”, LVDD=3.0V, R
* 0dBV = 1Vrms = 2.83Vpp
MS0672-E-00
HPG bit = “0”, 0dBFS, LVDD=3.0V, R
HPG bit = “1”, 0dBFS, LVDD=3.3V, R
HPG bit = “0”, −3dBFS, LVDD=3.0V, R
HPG bit = “1”, 0dBFS, LVDD=5.0V, R
HPG bit = “1”, 0dBFS, LVDD=3.3V, R
HPL, HPR = typ. (0.6 x AVDD) Vpp @ HPG bit = “0”, typ. (0.91 x AVDD) Vpp @ HPG bit = “1”.
capacitive load.
(Note
(Note
(Note
(Note
23)
24)
(Note
22)
25)
25)
(Note
HP-Amp
C1 in
C2 in
25)
Figure 2. Headphone-Amp output circuit
Figure 2
Figure 2
L
=22.8Ω.
L
L
L
L
=22.8Ω
=16Ω (Po=58mW)
=100Ω
=16Ω (Po=58mW)
L
=22.8Ω
LOUT/ROUT, IVOL=DVOL=LVOL=+0dB, ALC=OFF, R
HPL/HPR pin
C1
- 10 -
10Ω
0.22μF
47μF
-5.8
min
-4.7
60
82
65
16
76
83
83
80
10
Measurement Point
-
-
-
-
-
-
-
-
-
6.8Ω
C2
-3.9
-0.3
-3.9
100
0.1
typ
70
20
80
90
75
85
90
90
-
-
-
-
-
-
-
16Ω
max
-3.1
300
0.5
0.8
16
30
30
-2
-
-
-
-
-
-
-
-
-
-
-
-
L
= 10kΩ
[AK4691]
Units
dBFS
dBFS
dBFS
dBV
dBV
dBV
bits
kΩ
dB
dB
dB
dB
dB
pF
dB
dB
dB
2007/11
pF
pF
Ω