參數(shù)資料
型號: AK4631
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述: 16位單聲道編解碼器ALC的
文件頁數(shù): 9/69頁
文件大?。?/td> 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 9 -
(Ta=25
°
C; AVDD, DVDD, SVDD=3.3V; AVSS=DVSS=SVSS=0V; fs=8kHz, BICK=64fs; Signal Frequency=1kHz;
16bit Data; Measurement frequency=20Hz
3.4kHz; EXT Slave Mode; unless otherwise specified)
Parameter
MIC Amplifier
Input Resistance
Gain (MGAIN1-0 bits = “00”)
(MGAIN1-0 bits = “01”)
(MGAIN1-0 bits = “10”)
(MGAIN1-0 bits = “11”)
MIC Power Supply:
MPI pin
Output Voltage (Note 7)
Load Resistance
Load Capacitance
Input PGA Characteristics:
Input Resistance (Note 8)
Step Size
Gain Control Range
ADC Analog Input Characteristics:
MIC
IPGA
ADC, MIC Gain=20dB, IPGA=0dB, ALC1=OFF
Resolution
Input Voltage (MIC Gain=20dB, Note 9)
S/(N+D) (
1dBFS) (Note 10)
D-Range (
60dBFS)
S/N
DAC Characteristics:
Resolution
Mono Line Output Characteristics:
AOUT pin, DAC
AOUT, R
L
=10k
Output Voltage (Note 11)
S/(N+D) (0dBFS) (Note 10)
D-Range (-60dBFS)
S/N
Load Resistance
Load Capacitance
Speaker-Amp Characteristics:
MIN
SPP/SPN pins, ALC2=OFF, R
L
=8
, BTL, SVDD=3.3V
SPKG1-0 bits = “00” (-0.5dBFS)
Output Voltage
(Note 12)
SPKG1-0 bits = “01” (-0.5dBFS)
SPKG1-0 bits =“00” (150mW
)
S/(N+D)
SPKG1-0 bits =“01” (240mW
)
SPKG1-0 bits =“01” (250mW
)
S/N (Note 14)
Load Resistance
Load Capacitance
Speaker-Amp Characteristics:
MIN
SPP/SPN pins, ALC2=OFF, C
L
=3
μ
F, R
serial
=10
x 2, BTL, SVDD=5.0V
SPKG1-0 bits = “10” (0dBFS)
Output Voltage
(Note 12)
SPKG1-0 bits = “11” (0dBFS)
S/(N+D) (Note 12)
SPKG1-0 bits = “10” (0dBFS)
(Note 13)
SPKG1-0 bits = “11” (0dBFS)
S/N (Note 13) (Note 14)
Load Impedance (Note 15)
Load Capacitance
min
20
-
-
-
-
2.22
2
-
5
0.05
8
typ
30
0
20
26
32
2.47
-
-
10
0.5
-
max
40
-
-
-
-
2.72
-
30
15
0.9
+27.5
Units
k
dB
dB
dB
dB
V
k
pF
k
dB
dB
16
Bits
Vpp
dB
dB
dB
0.168
68
75
75
0.198
80
85
85
0.228
-
-
-
16
Bits
1.78
73
83
83
10
-
1.98
85
93
93
-
-
2.18
-
-
-
-
30
Vpp
dB
dB
dB
k
pF
2.47
3.10
40
20
-
80
8
-
3.09
3.92
60
50
20
90
-
-
3.71
4.74
-
-
-
-
-
30
Vpp
Vpp
dB
dB
dB
dB
pF
-
6.72
8.50
60
50
90
-
-
-
Vpp
Vpp
dB
dB
dB
μ
F
6.80
-
20
80
50
-
10.20
-
-
-
-
3
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