參數(shù)資料
型號： AK4569
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 20-Bit Stereo CODEC with IPGA & HP-AMP
中文描述： 20位立體聲編解碼器與單親遺傳算法
文件頁數(shù)： 6/45頁
文件大?。?/td> 474K
代理商： AK4569
ASAHI KASEI
[AK4569]
MS0292-E-01
2005/07
- 6 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; AVDD=DVDD=HVDD=3.0V, AVSS =DVSS=HVSS=0V; fs=44.1kHz; BOOST OFF; Signal Frequency
=1kHz; Measurement band width=20Hz
～
20kHz; unless otherwise specified)
Parameter
ADC Resolution
IPGA Characteristics:
(AINL1, AINR1 pins) (LINE IN)
Input Voltage
Input Resistance
Step Size
Gain Control Range
IPGA Characteristics:
(AINL2, AINR2 pins) (MIC IN)
Input Voltage
Input Resistance
Step Size
Gain Control Range
ADC Characteristics:
(Note 6)
S/(N+D) (
1dB Input)
D-Range (
60dB Input, A-weighted))
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Power Supply Rejection (Note 11)
DAC Resolution
Headphone-Amp:
(HPL/HPR pins) (Note 7) Load impedance is a serial connection with R
L
=22.8
and C
L
=100
μ
F.
S/(N+D) (0dBFS Output)
D-Range (
60dBFS Output, A-weighted)
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Load Resistance (Note 8)
Load Capacitance (C1 in Figure 2)
(C2 in Figure 2) (Note 9)
Output Voltage
Power Supply Rejection (Note 11)
Mono Output:
(MOUT pin) (Note 10)
S/(N+D) (0dBFS Output)
S/N (A-weighted)
Load Resistance (Note 8)
Load Capacitance
Output Voltage
Power Supply Rejection (Note 11)
Output Volume:
(MOUT pin)
Step Size
Gain Control Range
Note 6. The signal inputs are AINL1/AINR1 or AINL2/AINR2. The value of the IPGA is set to 0dB. On-chip HPF
cancels the IPGA and ADC offsets.
Note 7. DACL=DACR= “1”, MINL=MINR=LIN=RIN= “0”, and ATTL=ATTR=0dB.
Note 8. AC Load
Note 9. A resistor greater than 6.8
is inserted in series.
Note 10. DACM= “1”, LINM=RINM=MINM= “0”, ATTL=ATTR=ATTM=0dB, and common mode signal is input to
L/Rch of DAC.
Note 11. PSR is applied to AVDD, DVDD and HVDD with 1kHz, 50mVpp.
min
Typ
max
20
Units
bit
1.35
25
0.1
31
1.5
50
0.5
1.65
75
0.9
+20
Vpp
k
dB
dB
1.35
6
0.1
19
1.5
12.5
0.5
1.65
19
0.9
+32
Vpp
k
dB
dB
74
82
82
80
-
84
89
89
100
0.2
50
dB
dB
dB
dB
dB
dB
bit
0.5
-
20
50
82
82
70
20
70
90
90
90
0.2
dB
dB
dB
dB
dB
pF
pF
Vpp
dB
0.5
30
300
1.65
-
1.35
-
1.5
50
70
82
10
1.35
-
84
90
1.5
50
dB
dB
k
pF
Vpp
dB
30
1.65
-
1
2
3
0
dB
dB
30
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