參數(shù)資料
型號： AK4702
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 2CH DAC WITH AV SCART SWITCH
中文描述： 2聲道DAC，具有影音SCART開關(guān)
文件頁數(shù)： 10/38頁
文件大?。?/td> 308K
代理商： AK4702
ASAHI KASEI
[AK4702]
MS0187-E-00
2002/11
- 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
-
-
±
10
μA
ANALOG CHARACTERISTICS (AUDIO)
(Ta = 25
°
C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; fs = 48kHz; BICK = 64fs; Signal Frequency = 1kHz; 18bit Input
Data; Measurement frequency = 20Hz
～
20kHz; R
L
≥
4.5k
; Volume#0=Volume#1=0dB, 0dB=2Vrms output; unless
otherwise specified)
Parameter
DAC Resolution
Stereo Input:
(TVINL/TVINR/VCRINL/VCRINR pins)
Analog Input Characteristics
Input Voltage
Input Resistance
Mono Input:
(MONOIN pin)
Analog Input Characteristics
Input Voltage
Input Resistance
Stereo/Mono Output:
(TVOUTL/TVOUTR/VCROUTL/VCROUTR/MONOOUT pins; Note: 6)
Analog Output Characteristics
Volume#0 Step Width (0dB to –6dB)
Volume#1 Step Width (+6dB to –12dB)
(-12dB to –40dB)
(-40dB to –60dB)
THD+N (at 2Vrms output. Note: 7)
(
at 3Vrms output.: Note: 7
, Note: 8)
Dynamic Range (-60dB Output, A-weighted. Note: 7)
S/N (A-weighted. Note: 7)
Interchannel Isolation (Note: 7, Note: 9)
Interchannel Gain Mismatch (Note: 7, Note: 9)
Gain Drift
Load Resistance (AC-Lord; Note: 10)
TVOUTL/R, VCROUTL/R, MONOOUT
Output Voltage (Note: 10, Note: 11)
Power Supply Rejection (PSR. Note: 12)
Note: 6. Measured by Audio Precision System Two Cascade.
Note: 7. DAC to TVOUT
Note: 8. Except VCROUTL/VCROUTL pins.
Note: 9. Between TVOUTL and TVOUTR with digital inputs 1kHz/0dBFS.
Note: 10. THD+N : -80dB(min. at 2Vrns), -60dB(typ. at 3Vrms).
Note: 11. 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: 12. The PSR is applied to VD with 1kHz, 100mV.
min
typ
max
18
Units
bit
2
-
Vrms
k
100
150
1
-
Vrms
k
40
60
6
2
2
2
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
1.6
0.5
0.1
2.4
3.5
3.9
-80
-
-
-
-86
-60
96
96
90
0.3
200
92
92
80
-
-
4.5
1.85
-
ppm/
°
C
k
Vrms
dB
2
50
2.15
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