[AK4706]
ANALOG CHARACTERISTICS (AUDIO)
(Ta = 25°C; VP=12V, VD1=VD2=5V; VVD1=VVD2=VVD3=VVD4=5V; fs = 48kHz; BICK = 64fs; Signal Frequency
= 1kHz; 24bit Input Data; Measurement frequency = 20Hz ∼ 20kHz; RL ≥4.5kΩ; Volume #0=Volume #1=0dB,
0dB=2Vrms output; unless otherwise specified)
Parameter
min
typ
max
Units
24
bit
DAC Resolution
Analog Input: (TVINL/TVINR/VCRINL/VCRINR pins)
Analog Input Characteristics
Input Voltage
2
-
Vrms
kΩ
Input Resistance
100
40
150
60
Analog Input: (DACL/DACR pin)
Analog Input Characteristics
Input Voltage
1
-
Vrms
kΩ
Input Resistance
Stereo/Mono Output: (TVOUTL/TVOUTR/VCROUTL/VCROUTR/MONOOUT pins; Note 8)
Analog Output Characteristics
Volume#0 Gain (DAPD bit = “0”)
(DVOL1-0 = “00”)
(DVOL1-0 = “01”)
(DVOL1-0 = “10”)
(DVOL1-0 = “11”. Note 9)
-
-
-
-
0
-6
+2.44
+4
-
-
-
-
dB
dB
dB
dB
Volume#2 Gain (DAPD bit = “1”)
(DVOL1-0 = “00”)
(DVOL1-0 = “01”)
Volume#1 Step Width (+6dB to –12dB)
(-12dB to –40dB)
5.3
-0.7
1.6
0.5
0.1
6.0
0
2
2
2
-86
-60
96
96
90
0.3
200
6.7
0.7
2.4
3.5
3.9
-80
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
(-40dB to –60dB)
THD+N
(at 2Vrms output. Note 10)
(at 3Vrms output. Note 10, Note 11)
Dynamic Range (-60dB Output, A-weighted. Note 10)
92
92
80
-
S/N
(A-weighted. Note 10)
(Note 10, Note 12)
(Note 10, Note 12)
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
dB
dB
ppm/°C
-
-
-
Load Resistance (AC-Lord; Note 13)
TVOUTL/R, VCROUTL/R, MONOOUT
Load Capacitance
TVOUTL/R, VCROUTL/R, MONOOUT
4.5
kΩ
20
2.15
pF
Vrms
dB
Output Voltage
(Note 13, Note 14)
(PSR. Note 15)
1.85
-
2
50
Power Supply Rejection
Note 8. Measured by Audio Precision System Two Cascade.
Note 9. Output clips over –2.5dBFS digital input.
Note 10. DAC to TVOUT
Note 11. Except VCROUTL/VCROUTL pins.
Note 12. Between TVOUTL and TVOUTR with digital inputs 1kHz/0dBFS.
Note 13. THD+N: -80dB(min. at 2Vrns), -60dB(typ. at 3Vrms).
Note 14. Full-scale output voltage by DAC (0dBFS). Output voltage of DAC scales with the voltage of VD1,
Stereo output (typ@0dBFS) = 2Vrms × VD1/5 when volume#0=volume#1=0dB. The output must not exceed 3Vrms.
Note 15. The PSR is applied to VD1 with 1kHz, 100mV.
MS0507-E-01
2010/09
- 13 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
