AK4665A Datasheet, PDF (6/52 Pages) Asahi Kasei Microsystems – 20-Bit Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4665A]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=HVDD=TVDD=3.0V, AVSS=DVSS=HVSS=0V; fs=44.1kHz; ALC1=DEM
=BOOST=ALC2=OFF; ATTL=ATTR=ATTS=0dB; Signal Frequency =1kHz; Measurement band width=20Hz ∼
20kHz; unless otherwise specified)
Parameter
min
Typ
max
Units
ADC Resolution
-
-
20
bit
MIC Amplifier: MICIN pin
Input Resistance ^{MGAIN1-0 bits = “00” or “01”}
MGAIN1-0 bits = “10” or “11”
MGAIN1-0 bits = “00”
40
60
20
30
-
1.5
80
kΩ
40
kΩ
-
Vpp
Input Voltage
Gain
MGAIN1-0 bits = “01”
MGAIN1-0 bits = “10”
MGAIN1-0 bits = “11”
MGAIN1-0 bits = “00”
MGAIN1-0 bits = “01”
MGAIN1-0 bits = “10”
MGAIN1-0 bits = “11”
-
3.0
-
0.75
-
0.047
-
0
-
−6
-
+6
-
+30
-
Vpp
-
Vpp
-
Vpp
-
dB
-
dB
-
dB
-
dB
MIC Power Supply: MPWR pin
Output Voltage
Load Resistance
Load Capacitance
1.8
2.0
2
-
-
-
2.2
V
-
kΩ
30
pF
ADC Analog Input Characteristics: AINL1/AINR1 pins → ADC → IVOL, IVOL=0dB, ALC1=OFF
S/(N+D) (−1dBFS)
D-Range (−60dBFS, A-weighted)
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Input Voltage
Input Resistance
Power Supply Rejection (Note 7)
78
90
84
94
84
94
80
100
-
0.2
-
200
1.35
1.5
40
60
-
50
-
dB
-
dB
-
dB
-
dB
0.5
dB
-
ppm/°C
1.65
Vpp
80
kΩ
-
dB
DAC Resolution
20
bit
Headphone-Amp: (HPL/HPR pins) (Note 8) R_L =16Ω, HPG bit = “0”
S/(N+D) 0dBFS Output, HPG bit = “0”, Po=17mW@16Ω
40
60
−3dBFS Output, HPG bit = “1”, Po=31mW@16Ω
-
20
0dBFS Output, HPG bit = “1”, R_L=10kΩ
-
80
D-Range (−60dBFS Output, A-weighted)
80
88
S/N (A-weighted)
80
88
Interchannel Isolation
60
80
Interchannel Gain Mismatch
-
0.2
Gain Drift
-
200
Output Voltage 0dBFS Output, HPG bit = “0”, R_L=16Ω
1.35
1.5
−3dBFS Output, HPG bit = “1”, R_L=16Ω
-
2.0
0dBFS Output, HPG bit = “1”, R_L=10kΩ
-
2.83
Load Resistance
16
-
Load Capacitance
-
-
Power Supply Rejection (Note 7)
-
50
-
dB
-
dB
-
dB
-
dB
-
dB
-
dB
1.0
dB
-
ppm/°C
1.65
Vpp
-
Vpp
-
Vpp
-
Ω
300
pF
-
dB
Note 7. PSR is applied to AVDD, DVDD and HVDD with 1kHz, 50mVpp.
Note 8. DACHL=DACHR bits = “1”, MINHL=MINHR=LINHL=RINHR bits = “0”, ATTL7-0=ATTR7-0 bits=0dB.
MS0440-E-01
-6-
2006/05