AK4706_10 Datasheet, PDF (13/54 Pages) Asahi Kasei Microsystems – 2ch 24bit DAC with AV Switch & HD/SD Video Filter

[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; R_L ≥4.5kΩ; Volume #0=Volume #1=0dB,
0dB=2Vrms output; unless otherwise specified)
Parameter
min
typ
max
Units
DAC Resolution
24
bit
Analog Input: (TVINL/TVINR/VCRINL/VCRINR pins)
Analog Input Characteristics
Input Voltage
Input Resistance
100
150
2
Vrms
-
kΩ
Analog Input: (DACL/DACR pin)
Analog Input Characteristics
Input Voltage
Input Resistance
1
Vrms
40
60
-
kΩ
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
-
dB
-
-6
-
dB
-
+2.44
-
dB
-
+4
-
dB
Volume#2 Gain (DAPD bit = “1”)
(DVOL1-0 = “00”)
5.3
6.0
6.7
dB
(DVOL1-0 = “01”)
-0.7
0
0.7
dB
Volume#1 Step Width (+6dB to –12dB)
1.6
2
2.4
dB
(-12dB to –40dB)
0.5
2
3.5
dB
(-40dB to –60dB)
0.1
2
3.9
dB
THD+N
(at 2Vrms output. Note 10)
-86
-80
dB
(at 3Vrms output. Note 10, Note 11)
-60
-
dB
Dynamic Range (-60dB Output, A-weighted. Note 10)
92
96
dB
S/N
(A-weighted. Note 10)
92
96
dB
Interchannel Isolation
(Note 10, Note 12)
80
90
dB
Interchannel Gain Mismatch
(Note 10, Note 12)
-
0.3
-
dB
Gain Drift
-
200
-
ppm/°C
Load Resistance (AC-Lord; Note 13)
TVOUTL/R, VCROUTL/R, MONOOUT
4.5
kΩ
Load Capacitance
TVOUTL/R, VCROUTL/R, MONOOUT
20
pF
Output Voltage
Power Supply Rejection
(Note 13, Note 14)
1.85
(PSR. Note 15)
-
2
2.15
Vrms
50
dB
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
- 13 -
2010/09