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AK5701 Datasheet(PDF) 6 Page - Asahi Kasei Microsystems

Part No. AK5701
Description  PLL & MIC-AMP 16-Bit Stereo ADC
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Maker  AKM [Asahi Kasei Microsystems]
Homepage  http://www.akm.com
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AK5701 Datasheet(HTML) 6 Page - Asahi Kasei Microsystems

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ASAHI KASEI
[AK5701]
MS0404-J-00
2005/08
- 6 -
アナログ特性
(Ta=25
°C; AVDD, DVDD=3.0V; AVSS=DVSS=0V; PLL Master Mode; MCKI=12MHz, fs=44.0995kHz, BCLK=64fs;
Signal Frequency=1kHz; 16bit Data; Measurement frequency=20Hz
∼ 20kHz; unless otherwise specified)
Parameter
Min
Typ
max
Units
MIC Amplifier: LIN1, RIN1, LIN2, RIN2 pins; MDIF1 = MDIF2 bits = “0” (Single-ended inputs)
MGAIN1-0 bits = “00”
40
60
80
k
Input
Resistance
MGAIN1-0 bits = “01” or “10”
20
30
40
k
MGAIN1-0 bits = “00”
-
0
-
dB
MGAIN1-0 bits = “01”
-
+15
-
dB
Gain
MGAIN1-0 bits = “10”
-
+30
-
dB
MIC Amplifier: LIN+, LIN
−, RIN+, RIN− pins; MDIF1 = MDIF2 bits = “1” (Full-differential input)
Input Voltage (Note 7)
MGAIN1-0 bits = “01”
-
-
0.37
Vpp
MGAIN1-0 bits = “10”
-
-
0.066
Vpp
MIC Power Supply: MPWR pin
Output Voltage (Note 8)
2.02
2.25
2.48
V
Load Resistance
0.5
-
-
k
Load Capacitance
-
-
30
pF
ADC Analog Input Characteristics: LIN1/RIN1/LIN2/RIN2 pins (Single-ended inputs)
→ ADC → IVOL,
MGAIN=+15dB, IVOL=0dB, ALC=OFF
Resolution
-
-
16
Bits
MGAIN=+30dB
-
0.057
-
Vpp
MGAIN=+15dB
0.27
0.32
0.37
Vpp
Input Voltage (Note 9)
MGAIN=0dB
1.53
1.80
2.07
Vpp
S/(N+D) (
−0.5dBFS) (Note 10)
67
77
-
dB
D-Range (
−60dBFS, A-weighted) (Note 11)
79
87
-
dB
S/N (A-weighted) (Note 11)
79
87
-
dB
Interchannel Isolation (Note 12)
80
90
-
dB
MGAIN=+30dB
-
0.2
-
dB
MGAIN=+15dB
-
0.2
1.0
dB
Interchannel Gain Mismatch
MGAIN=0dB
-
0.2
0.5
dB
Power Supplies:
Power Supply Current: AVDD+DVDD
Power Up (PDN pin = “H”) (Note 13)
-
8
12
mA
Power Down (PDN pin = “L”) (Note 14)
-
1
20
µA
Note 7. プラス入力ピンとマイナス入力ピンの差分です。ACカップリングコンデンサを各入力ピンにシリー
ズに接続して下さい。MGAIN1-0 bits = “00”のとき差動入力は使用禁止です。LIN+, LIN
−, RIN+, RIN−
pinの最大入力電圧はそれぞれAVDDに比例します。Vin = |(L/RIN+)
− (L/RIN−)| = 0.123 x AVDD
(max)@MGAIN1-0 bits = “01”, 0.022 x AVDD (max)@MGAIN1-0 bits = “10”.
この電圧を越える信号が入力された場合、ADCの動作は保証できません。
Note 8. 出力電圧はAVDDに比例します。Vout = 0.75 x AVDD (typ)。
Note 9. 入力電圧はAVDDに比例します。Vin = 0.107 x AVDD (typ)@MGAIN1-0 bits = “01” (+15dB), Vin = 0.6 x
AVDD(typ)@MGAIN1-0 bits = “00” (0dB)
Note 10. 78dB(typ)@MGAIN=0dB, 72dB(typ)@MGAIN=+30dB
Note 11. 89dB(typ)@MGAIN=0dB, 77dB(typ)@MGAIN=+30dB
Note 12. 100dB(typ)@MGAIN=0dB, 80dB(typ)@MGAIN=+30dB
Note 13. PLL Master Mode (MCKI=12MHz)で、PMADL = PMADR = PMVCM = PMPLL = PMMP = M/S bits = “1”,
MCKO = “0”の場合です。このとき、MPWR pinの出力電流は0mAです。
AVDD=6.4mA(typ), DVDD=1.6mA(typ).
EXT Slave Mode (PMPLL = M/S = MCKO bits = “0”)の場合: AVDD=5.7mA(typ), DVDD=1.3mA(typ).
Bypass Mode (THR bit = “1”, PMADL = PMADR = M/S bits = “0”), fs=8kHzの場合: AVDD=1
µA(typ),
DVDD=150
µA(typ).
Note 14. 全てのディジタル入力ピンをDVDDまたはDVSSに固定した時の値です。


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