AK4534 Datasheet, PDF (7/64 Pages) Asahi Kasei Microsystems – 16Bit CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4534]
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
min
typ
max
Units
MIC Amplifier
Input Resistance
20
30
40
kΩ
Gain
(MGAIN bit = “0”)
-
0
-
dB
(MGAIN bit = “1”)
-
20
-
dB
MIC Power Supply
Output Voltage (Note 4)
2.22
2.47
2.72
V
Output Current
-
-
1.25
mA
Input PGA Characteristics:
Input Resistance (Note 5)
5
10
15
kΩ
Step Size
0.1
0.5
0.9
dB
Gain Control Range
−8
+27.5
dB
ADC Analog Input Characteristics: MIC Gain=20dB, IPGA=0dB, ALC1=OFF, MIC → IPGA → ADC
Resolution
16
Bits
Input Voltage (MIC Gain=20dB, Note 6)
0.168
0.198
0.228
Vpp
S/(N+D)
(−1dBFS)
71
79
dB
D-Range
(−60dBFS, A-weighted)
75
83
dB
S/N
(A-weighted)
75
83
dB
DAC Characteristics:
Resolution
16
Bits
Mono Line Output Characteristics: R_L=20kΩ, DAC → MOUT+/MOUT-
Output Voltage (Note 7)
3.56
3.96
4.36
Vpp
S/(N+D)
(−3dBFS)
79
89
dBFS
S/N
(A-weighted)
85
95
dB
Load Resistance
20
kΩ
Load Capacitance
30
pF
Headphone-Amp Characteristics: R_L=22.8Ω, DAC → HPL/HPR, DATT=0dB
Output Voltage (Note 8)
1.54
1.92
2.30
Vpp
S/(N+D)
(−3dBFS)
60
70
dB
S/N
(A-weighted)
80
90
dB
Interchannel Isolation
70
85
dB
Interchannel Gain Mismatch
0.1
0.5
dB
Load Resistance
20
Ω
Load Capacitance
(C1 of Figure 1)
30
pF
(C2 of Figure 1)
300
pF
Speaker-Amp Characteristics: R_L=8Ω, BTL, DAC → MOUT2 → MIN → SPP/SPN, ALC2=OFF
Output Voltage
(Note 9)
2.37
2.96
3.55
Vpp
S/(N+D)
50
64
dB
S/N
(A-weighted)
82
90
dB
Load Resistance
8
Ω
Load Capacitance
30
pF
BEEP Input: BEEPL, BEEPR, BEEPM pin
Maximum Input Voltage (Note 10)
1.98
Vpp
Feedback Resistance
14
20
26
kΩ
Mono Input: MIN pin
Maximum Input Voltage (Note 11)
1.98
Vpp
Input Resistance
(Note 12)
12
24
36
kΩ
MS0133-E-03
-7-
2003/5