參數(shù)資料
型號: AK4647
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP-AMP
中文描述: 立體聲編解碼器麥克風(fēng)/惠普腺苷
文件頁數(shù): 8/72頁
文件大?。?/td> 565K
代理商: AK4647
ASAHI KASEI
[AK4647]
MS0566-E-00
2006/11
- 8 -
Parameter
DAC Characteristics:
Resolution
Stereo Line Output Characteristics:
DAC
LOUT, ROUT pins, ALC=OFF, IVOL=0dB, DVOL=0dB, LOVL bit =
“0”, R
L
=10k
Ω
Output Voltage (Note 13)
LOVL bit = “0”
LOVL bit = “1”
S/(N+D)
(
3dBFS)
S/N
(A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Load Resistance
Load Capacitance
Headphone-Amp Characteristics:
DAC
HPL/HPR pins, ALC=OFF, IVOL=0dB, DVOL=0dB
(Note 15)
Output Voltage (Note 14)
(Note 16)
(Note 15)
S/(N+D)
(
3dBFS)
(Note 16)
(Note 15)
S/N
(A-weighted)
(Note 16)
(Note 15)
Interchannel Isolation
(Note 16)
(Note 15)
Interchannel Gain Mismatch
(Note 16)
(Note 15)
Load Resistance
(Note 16)
C1 in Figure 2
Load Capacitance
C2 in Figure 2
Note 13. Output voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD (typ)@LOVL bit = “0”.
Note 14. Output voltage is proportional to AVDD voltage.
Vout = 0.6 x AVDD(typ)@HPG bit = “0”, 0.91 x AVDD(typ)@HPG bit = “1”.
Note 15. HPG bit = “0”, HVDD=3.3V, RL=22.8
Ω
.
Note 16. HPG bit = “1”, HVDD=5V, RL=100
Ω
.
min
typ
max
Units
-
-
16
Bits
1.78
2.25
78
82
80
-
10
-
1.98
2.50
88
92
100
0.1
-
-
2.18
2.75
-
-
-
0.5
-
30
Vpp
Vpp
dBFS
dB
dB
dB
k
Ω
pF
1.58
2.40
60
-
80
-
65
-
-
-
20
100
-
-
1.98
3.00
70
80
90
90
75
80
0.1
0.1
-
-
-
-
2.38
3.60
-
-
-
-
-
-
0.8
0.8
-
-
30
300
Vpp
Vpp
dBFS
dBFS
dB
dB
dB
dB
dB
dB
Ω
Ω
pF
pF
HPL/HPR pin
HP-Amp
47
μ
F
C1
16
Ω
C2
6.8
Ω
Figure 2. Headphone-Amp output circuit
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