參數(shù)資料
型號： AK4641
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16 BIT CODEC WITH BLUETOOTH INTERFACE
中文描述： 16位編解碼器與藍(lán)牙接口
文件頁數(shù)： 49/51頁
文件大小： 461K
代理商： AK4641
ASAHI KASEI
[AK4641]
MS0301-E-00
2004/05
- 7 -
Parameter
Min
Typ
max
Units
Mono Line Output Characteristics: RL=20k, DAC of Stereo CODEC → MOUT+/MOUT pins
MOGN bit = “1”,
17dB
-
0.305
-
Vpp
Output Voltage
(Note 9)
MOGN bit = “0”, +6dB
3.56
3.96
4.36
Vpp
MOGN bit = “1”,
17dB
-
74
-
dBFS
S/(N+D)
(0dBFS)
MOGN bit = “0”, +6dB
76
86
-
dBFS
MOGN bit = “1”,
17dB
-
77
-
dB
S/N
(A-weighted)
MOGN bit = “0”, +6dB
83
93
-
dB
MOGN bit = “1”,
17dB
2
-
k
Load Resistance
MOGN bit = “0”, +6dB
20
-
k
Load Capacitance
-
30
pF
AUX Input: AUXIN+, AUXIN pins: AUXSI bit = “0”
Maximum Input Voltage
(Note 10)
-
1.98
-
Vpp
Input Resistance
25
40
55
k
Step Size
1
3
5
dB
Max (GN3-0 bits = “FH”)
-
+24
-
dB
Gain Control Range
Min (GN3-0 bits = “0H”)
-
21
-
dB
Mono Output: RL=10k, DAC of Stereo CODEC → MIX → MOUT2 pin
Output Voltage
(Note 11)
1.78
1.98
2.18
Vpp
S/(N+D)
(0dBFS)
76
86
-
dB
S/N
(A-weighted)
83
93
-
dB
Load Resistance
10
-
k
Load Capacitance
(Note 12)
-
30
pF
16bit Mono ADC Analog Input Characteristics: AUXIN pin
→ MIX → ADC of Mono CODEC: AUX Volume = 0dB
Resolution
-
16
Bits
Input Voltage
(Note 13)
1.68
1.98
2.28
Vpp
S/(N+D)
(
1dBFS)
65
75
-
dB
S/N
79
89
-
dB
16bit Mono DAC Analog Output Characteristics: DAC of Mono CODEC
→ MOUT+/ pins: MOGN = +6dB
Resolution
-
16
Bits
Output Voltage
(Note 14)
3.56
3.96
4.36
Vpp
S/(N+D)
68
78
-
dB
S/N
82
92
-
dB
Power Supplies
Power Up (PDN pin = “H”)
AVDD+DVDD+ BVDD
-
17
27
mA
Power Down (PDN pin = “L”) (Note 15)
AVDD+DVDD+BVDD
-
100
A
Note 9. Output voltage is proportional to AVDD voltage.
Vout = 1.2 x AVDD (typ) @MOGN bit = “0”, 0.092 x AVDD (typ) @MOGN bit = “1” at differential Output.
Note 10. Maximum Input Voltage is proportional to AVDD voltage.
Vin = (AUXIN+)
(AUXIN) = 0.6 x AVDD (typ) at AUXSI bit = “0”,
Vin = AUXIN+ = 0.6 x AVDD (typ) at AUXSI bit = “1”.
Note 11. Output Voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD (typ).
Note 12. When the output pin drives a capacitive load, a resistor should be added in series between the output pin and
capacitive load.
Note 13. Input voltage is proportional to AVDD voltage. Vin = 0.6 x AVDD (typ).
Note 14. Output Voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD (typ).
Note 15. All digital input pins are fixed to DVSS. When the voltage difference among DVDD, BVDD and AVDD is
larger than 0.3V, the power supply current at power down mode increases.
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