參數(shù)資料
型號: AK4645EZ
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): 9/96頁
文件大小: 933K
代理商: AK4645EZ
[AK4645EZ]
MS0605-E-00
2007/06
- 9 -
Parameter
Headphone-Amp Characteristics:
DAC
HPL/HPR pins, ALC=OFF, IVOL=0dB, DVOL=0dB, VBAT bit = “0”;
unless otherwise specified.
Output Voltage (Note 15)
HPG bit = “0”, 0dBFS, HVDD=3.3V, R
L
=22.8
Ω
HPG bit = “1”, 0dBFS, HVDD=5V, R
L
=100
Ω
HPG bit = “1”, 0dBFS, HVDD=3.3V, R
L
=16
Ω
(Po=62mW)
HPG bit = “1”, 0dBFS, HVDD=5V, R
L
=16
Ω
(Po=70mW)
S/(N+D)
HPG bit = “0”,
3dBFS, HVDD=3.3V, R
L
=22.8
Ω
HPG bit = “1”,
3dBFS, HVDD=5V, R
L
=100
Ω
HPG bit = “1”, 0dBFS, HVDD=3.3V, R
L
=16
Ω
(Po=62mW)
HPG bit = “1”, 0dBFS, HVDD=5V, R
L
=16
Ω
(Po=70mW)
(Note 16)
S/N (A-weighted)
(Note 17)
(Note 16)
Interchannel Isolation
(Note 17)
(Note 16)
Interchannel Gain Mismatch
(Note 17)
Load Resistance
C1 in Figure 2
Load Capacitance
C2 in Figure 2
Note 15. 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 16. HPG bit = “0”, HVDD=3.3V, R
L
=22.8
Ω
.
Note 17. HPG bit = “1”, HVDD=5V, R
L
=100
Ω
.
min
typ
max
Units
1.58
2.40
-
-
60
-
-
-
80
-
65
-
-
-
16
-
-
1.98
3.00
1.0
1.06
70
80
20
70
90
90
75
80
0.1
0.1
-
-
-
2.38
3.60
-
-
-
-
-
-
-
-
-
-
0.8
0.8
-
30
300
Vpp
Vpp
Vrms
Vrms
dBFS
dBFS
dBFS
dBFS
dB
dB
dB
dB
dB
dB
Ω
pF
pF
HPL/HPR pin
HP-Amp
47
μ
F
C1
16
Ω
C2
6.8
Ω
0.22
μ
F
10
Ω
Measurement Point
Figure 2. Headphone-Amp output circuit
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AK4645 Stereo CODEC with MIC/HP-AMP
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AK4646 Stereo CODEC with MIC/SPK-AMP
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