參數(shù)資料
型號： AK4566
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 20bit Stereo CODEC with built-in IPGA & HP-AMP
中文描述： 20位立體聲編解碼器內(nèi)置單親遺傳算法
文件頁數(shù)： 6/45頁
文件大?。?/td> 454K
代理商： AK4566
ASAHI KASEI
AKM CONFIDENTIAL
[AK4566]
REV 0.5
2002/2
- 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 IPGA is set to 0dB. On-chip HPF cancels the
offset of IPGA and ADC.
Note 7. DACL=DACR= “1”, MINL=MINR=LIN=RIN= “0”, and ATTL=ATTR=0dB.
Note 8. AC Load
Note 9. The resistor larger 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
1.5
50
0.5
Vpp
k
dB
dB
25
-31
+20
1.5
12.5
0.5
Vpp
k
dB
dB
6
-19
+32
82
88
88
80
0.2
50
dB
dB
dB
dB
dB
dB
bit
20
50
90
90
80
0.2
dB
dB
dB
dB
dB
pF
pF
Vpp
dB
20
30
300
1.5
50
80
88
1.5
50
dB
dB
k
pF
Vpp
dB
10
30
2
dB
dB
-30
0
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PDF描述
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