AK5701 Datasheet, PDF (6/62 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP 16-Bit Stereo ADC

ASAHI KASEI
[AK5701]
Ξφϩάಛੑ
(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)
Input
Resistance
Gain
MGAIN1-0 bits = “00”
MGAIN1-0 bits = “01” or “10”
MGAIN1-0 bits = “00”
MGAIN1-0 bits = “01”
MGAIN1-0 bits = “10”
40
60
80
kΩ
20
30
40
kΩ
-
0
-
dB
-
+15
-
dB
-
+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)
Load Resistance
Load Capacitance
2.02
2.25
2.48
V
0.5
-
-
kΩ
-
-
30
pF
ADC Analog Input Characteristics: LIN1/RIN1/LIN2/RIN2 pins (Single-ended inputs) → ADC → IVOL,
MGAIN=+15dB, IVOL=0dB, ALC=OFF
Resolution
-
MGAIN=+30dB
-
Input Voltage (Note 9)
MGAIN=+15dB
0.27
MGAIN=0dB
1.53
S/(N+D) (−0.5dBFS) (Note 10)
67
D-Range (−60dBFS, A-weighted) (Note 11)
79
S/N (A-weighted) (Note 11)
79
Interchannel Isolation (Note 12)
80
MGAIN=+30dB
-
Interchannel Gain Mismatch MGAIN=+15dB
-
MGAIN=0dB
-
-
0.057
0.32
1.80
77
87
87
90
0.2
0.2
0.2
16
Bits
-
Vpp
0.37
Vpp
2.07
Vpp
-
dB
-
dB
-
dB
-
dB
-
dB
1.0
dB
0.5
dB
Power Supplies:
Power Supply Current: AVDD+DVDD
Power Up (PDN pin = “H”) (Note 13)
Power Down (PDN pin = “L”) (Note 14)
-
8
12
mA
-
1
20
µA
Note 7. ϓϥεೖྗϐϯͱϚΠφεೖྗϐϯͷࠩ෼Ͱ͢ɻACΧοϓϦϯάίϯσϯαΛ֤ೖྗϐϯʹγϦʔ
ζʹ઀ଓͯ͠Լ͍͞ɻMGAIN1-0 bits = “00”ͷͱ͖ࠩಈೖྗ͸࢖༻͢ͰࢭېɻLIN+, LIN−, RIN+, RIN−
pinͷ࠷େೖྗిѹ͸ͦΕͧΕAVDDʹൺྫ͠·͢ɻVin = |(L/RIN+) − (L/RIN−)| = 0.123 x AVDD
(max)@MGAIN1-0 bits = “01”, 0.022 x AVDD (max)@MGAIN1-0 bits = “10”.
͜ͷిѹΛӽ͑Δ৴߸͕ೖྗ͞Εͨ৔߹ɺADCͷಈ࡞͸อূͰ͖·ͤΜɻ
Note 8. ग़ྗిѹ͸AVDDʹൺྫ͠·͢ɻVout = 0.75 x AVDD (typ)ɻ
Note 9. ೖྗిѹ͸AVDDʹൺྫ͠·͢ɻVin = 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)ͰɺPMADL = PMADR = PMVCM = PMPLL = PMMP = M/S bits = “1”,
MCKO = “0”ͷ৔߹Ͱ͢ɻ͜ͷͱ͖ɺMPWR pinͷग़ྗిྲྀ͸0mAͰ͢ɻ
AVDD=6.4mA(typ), DVDD=1.6mA(typ).
EXT Slave Mode (PMPLL = M/S = MCKO bits = “0”)ͷ৔߹: AVDD=5.7mA(typ), DVDD=1.3mA(typ).
Bypass Mode (THR bit = “1”, PMADL = PMADR = M/S bits = “0”), fs=8kHzͷ৔߹: AVDD=1µA(typ),
DVDD=150µA(typ).
Note 14. શͯͷσΟδλϧೖྗϐϯΛDVDD·ͨ͸DVSSݻʹఆͨ࣌͠ͷ஋Ͱ͢ɻ
MS0404-J-00
-6-
2005/08