參數(shù)資料
型號： AK4640
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16BIT CODEC WITH MIC /HP/SPK-AMPl
中文描述： 16位編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植，AMPl
文件頁數(shù)： 11/76頁
文件大?。?/td> 634K
代理商： AK4640
ASAHI KASEI
[AK4640]
MS0273-E-00
2004/03
- 11 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; AVDD, DVDD, PVDD, HVDD=3.3V; AVSS=DVSS=PVSS=HVSS=0V; fs=44.1kHz, BICK=64fs;
Signal Frequency=1kHz; 16bit Data; Measurement frequency=20Hz
～
20kHz; unless otherwise specified)
Parameter
MIC Amplifier:
Input Resistance
(MGAIN bit = “0”)
Gain
(MGAIN bit = “1”)
MIC Power Supply:
Output Voltage
(Note 4)
Load Resistance
Load Capacitance
Input PGA Characteristics:
Input Resistance
(Note 5)
Step Size
Gain Control Range
ADC Analog Input Characteristics:
MIC Gain=20dB, IPGA=0dB, ALC1=OFF, MIC
→
IPGA
→
ADC
Resolution
Input Voltage
(Note 6)
S/(N+D)
(
1dBFS)
D-Range
(
60dBFS, A-weighted)
S/N
(A-weighted)
DAC Characteristics:
Resolution
Mono Line Output Characteristics:
R
L
=20k
, DAC
→
MOUT+/MOUT
pins
Output Voltage
MOGN bit = “1”,
17dB
(Note 7)
MOGN bit = “0”, +6dB
S/(N+D)
(-3dBFS)
MOGN bit = “1”,
17dB
MOGN bit = “0”, +6dB
S/N
(A-weighted) MOGN bit = “1”,
17dB
MOGN bit = “0”, +6dB
Load Resistance
MOGN bit = “1”,
17dB
MOGN bit = “0”, +6dB
Load Capacitance
Note 4. Output voltage is proportional to AVDD voltage. Vout = 0.75 x AVDD(typ).
Note 5. When IPGA Gain is changed, this typical value changes between 8k
and 11k
.
Note 6. Input voltage is proportional to AVDD voltage. Vin = 0.06 x AVDD(typ).
Note 7. Output voltage is proportional to AVDD voltage. Vout = 1.2 x AVDD(typ)@MOGN bit = “0” at Full-differential
output. Vout = 0.6 x AVDD(typ)@MOGN bit = “0” at Single-end Output.
min
20
-
-
2.22
2
-
5
0.1
8
typ
30
0
20
2.47
-
-
10
0.5
-
max
40
-
-
2.72
-
30
15
0.9
+27.5
Units
k
dB
dB
V
k
pF
k
dB
dB
-
-
16
Bits
Vpp
dBFS
dB
dB
0.168
71
75
75
0.198
79
83
83
0.228
-
-
-
-
-
16
Bits
-
0.31
3.96
76
89
79
95
-
Vpp
Vpp
dBFS
dBFS
dB
dB
k
k
pF
3.56
-
79
-
85
2
20
4.36
30
相關(guān)PDF資料
PDF描述
AK4640VG 16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4640VN 16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4642EN Stereo CODEC with MIC/HP/SPK-AMP
AK4643EN Stereo CODEC with MIC/HP/RCV/SPK-AMP
AK4645EZ Stereo CODEC with MIC/HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4640_05 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4640VG 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4640VN 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH MIC /HP/SPK-AMPl
AK4641 制造商:AKM 制造商全稱:AKM 功能描述:16 BIT CODEC WITH BLUETOOTH INTERFACE
AK4641EN 制造商:AKM 制造商全稱:AKM 功能描述:16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.
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