ASAHI KASEI
[AK4683]
Analog Volume Characteristics (OPGA):
Step Size:
+0dB
∼
-16dB
0.1
-16dB
∼
-38dB
0.1
-38dB
∼
-50dB
-
Headphone-Amp Characteristics:
DAC
→
HPL/HPR pins, RL=16Ω
Output Voltage
(0.506xHVDD)
1.94
-
S/(N+D)
(−3dBFS)
S/N
(A-weighted)
-
Interchannel Isolation
-
Interchannel Gain Mismatch
-
Load Resistance
16
C1 in Figure 1
-
Load Capacitance
C2 in Figure 1
-
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
(Note 11)
AVDD1+ AVDD2
fs=48kHz, fs=96kHz
fs=192kHz
HVDD
PVDD
DVDD+TVDD
fs=48kHz
(Note 12)
fs=96kHz
fs=192kHz
Power-down mode (PDN pin = “L”)
(Note 13)
HP-Amp
1
2
4
2.43
70
90
80
0.1
-
-
-
-
-
-
2.92
-
-
-
0.5
-
30
300
dB
dB
dB
Vpp
dBFS
dB
dB
dB
Ω
pF
pF
37
19
7
8
35
45
55
80
52
27
10
11
49
63
77
200
mA
mA
mA
mA
mA
mA
mA
µA
HPL, HPR
-
+
C1
+
C2
16Ω
Figure 1. Headphone Amplifier output circuit
Notes:
5. Measured at LISEL/RISEL pins when the input resistor=47kohm, the feedback resistor=24kohm and input level
=2Vrms.
6. Measured through Pre-Amp -> ADC. Input resistor=47kohm, feedback resistor=24kohm.
7. S/N measured by CCIR-ARM is 96dB(@fs=48kHz).
8. This value is the interchannel isolation between all the channels of the LIN1-6 and RIN1-6.
9. PSR is applied to AVDD, DVDD, PVDD and TVDD with 1kHz, 50mVpp.
10. S/N measured by CCIR-ARM is 102dB(@fs=48kHz).
11. C
L
=20pF, X'tal=24.576MHz, CM1-0=“10”, CM1-0=“10”, OCKS1-0="10"@48kHz,"00"@96kHz,
"11"@192kHz. Headphone = No output. The resister network is attached to TX pin.
12. TVDD=6mA(typ@fs=48kHz), 7mA(typ@fs=96kHz), 10mA(typ@fs=192kHz).
13. In the power-down mode. RX0 input is open and all digital input pins including clock pins (MCLK2, BICKA,
BICKB, ILRCKA, OLRCKA, BICKB pins) and RX1-3 pins are held DVSS.
MS0427-E-01
-9-
2005/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
