參數(shù)資料
型號(hào)： AK4704
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 2ch 24bit DAC with AV SCART switch
中文描述： 2通道24位DAC，具有影音SCART開關(guān)
文件頁(yè)數(shù)： 10/44頁(yè)
文件大?。?/td> 440K
代理商： AK4704
ASAHI KASEI
AKM CONFIDENTIAL
[AK4704]
Rev. 0.5
2004/1
- 10 -
DIGITAL CHARACTERISTICS
(Ta = 25
°
C; VD = 4.75
～
5.25V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
Low-Level Output Voltage
(SDA pin: Iout= 3mA, INT pin: Iout= 1mA)
Input Leakage Current
Symbol
VIH
VIL
VOL
min
2.0
-
-
typ
-
-
-
max
-
0.8
0.4
Units
V
V
V
Iin
-
-
±
100
μA
ANALOG CHARACTERISTICS (AUDIO)
(Ta = 25
°
C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; fs = 48kHz; BICK = 64fs; Signal Frequency = 1kHz; 24bit Input
Data; Measurement frequency = 20Hz
～
20kHz; R
L
≥
4.5k
; Volume #0=Volume #1=0dB, 0dB=2Vrms output; unless
otherwise specified)
Parameter
DAC Resolution
Analog Input:
(TVINL/TVINR/VCRINL/VCRINR pins)
Analog Input Characteristics
Input Voltage
Input Resistance
Analog Input:
(DACL/DACR pin)
Analog Input Characteristics
Input Voltage
Input Resistance
Stereo/Mono Output:
(TVOUTL/TVOUTR/VCROUTL/VCROUTR/MONOOUT pins; Note: 6)
Analog Output Characteristics
Volume#0 Gain (DVOL1-0 = “00”)
(DVOL1-0 = “01”)
(DVOL1-0 = “10”)
(DVOL1-0 = “11”. Note: 7)
Volume#1 Step Width (+6dB to –12dB)
(-12dB to –40dB)
(-40dB to –60dB)
THD+N (at 2Vrms output. Note: 8)
(
at 3Vrms output.
Note: 8, Note: 9)
Dynamic Range (-60dB Output, A-weighted. Note: 8)
S/N (A-weighted. Note: 8)
Interchannel Isolation (Note: 8, Note: 10)
Interchannel Gain Mismatch (Note: 8, Note: 10)
Gain Drift
Load Resistance (AC-Lord; Note: 11)
TVOUTL/R, VCROUTL/R, MONOOUT
Output Voltage (Note: 11, Note: 12)
Power Supply Rejection (PSR. Note: 13)
Note: 6. Measured by Audio Precision System Two Cascade.
Note: 7. Output clips over –2.5dBFS digital input.
Note: 8. DAC to TVOUT
Note: 9. Except VCROUTL/VCROUTL pins.
Note: 10. Between TVOUTL and TVOUTR with digital inputs 1kHz/0dBFS.
Note: 11. THD+N : -80dB(min. at 2Vrns), -60dB(typ. at 3Vrms).
Note: 12. Full-scale output voltage by DAC (0dBFS). Output voltage of DAC scales with the voltage of VD,
Stereo output (typ@0dBFS) = 2Vrms × VD/5 when volume#0=volume#1=0dB. Do not output signals over 3Vrms.
Note: 13. The PSR is applied to VD with 1kHz, 100mV.
min
typ
max
24
Units
bit
2
-
Vrms
k
100
150
1
-
Vrms
k
TBD
TBD
0
-6
+2.44
+4
2
2
2
-86
-60
96
96
90
0.3
200
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
1.6
0.5
0.1
2.4
3.5
3.9
-80
-
-
-
92
92
80
-
-
4.5
1.85
-
ppm/
°
C
k
Vrms
dB
2
50
2.15
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