AK4640_05 AKM [Asahi Kasei Microsystems], AK4640_05 Datasheet - Page 11

• Manufacturer Part Number: AK4640_05
• Description: 16-Bit ?? CODEC with MIC/HP/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
(Ta=25°C; AVDD, DVDD, PVDD, HVDD=3.3V; AVSS=DVSS=PVSS=HVSS=0V; fs=44.1kHz, BICK=64fs;
Parameter
MIC Amplifier:
Input Resistance
Gain
MIC Power Supply:
Output Voltage
Load Resistance
Load Capacitance
Input PGA Characteristics:
Input Resistance
Step Size
Gain Control Range
ADC Analog Input Characteristics: MIC Gain=20dB, IPGA=0dB, ALC1=OFF, MIC → IPGA → ADC
Resolution
Input Voltage
S/(N+D)
D-Range
S/N
DAC Characteristics:
Resolution
Mono Line Output Characteristics: R
Output Voltage
(Note 7)
S/(N+D)
S/N
Load Resistance
Load Capacitance
Note 4. Output voltage is proportional to AVDD voltage. Vout = 0.75 x AVDD(typ).
Note 5. When IPGA Gain is changed, this typical value changes between 8kΩ and 11kΩ.
Note 6. Input voltage is proportional to AVDD voltage. Vin = 0.06 x AVDD(typ).
Note 7. Output voltage is proportional to AVDD voltage. Vout = 1.2 x AVDD(typ)@MOGN bit = “0” at Full-differential
MS0273-E-02
Signal Frequency=1kHz; 16bit Data; Measurement frequency=20Hz ∼ 20kHz; unless otherwise specified)
output. Vout = 0.6 x AVDD(typ)@MOGN bit = “0” at Single-end Output.
(A-weighted)
(-3dBFS)
(MGAIN bit = “0”)
(MGAIN bit = “1”)
(Note 4)
(Note 5)
(Note 6)
(−1dBFS)
(−60dBFS, A-weighted)
(A-weighted)
MOGN bit = “1”, −17dB
MOGN bit = “0”, +6dB
MOGN bit = “1”, −17dB
MOGN bit = “0”, +6dB
MOGN bit = “1”, −17dB
MOGN bit = “0”, +6dB
MOGN bit = “1”, −17dB
MOGN bit = “0”, +6dB
ANALOG CHARACTERISTICS
L
=20kΩ, DAC → MOUT+/MOUT− pins
- 11 -
0.168
2.22
3.56
min
0.1
20
−8
71
75
75
79
85
20
2
5
2
-
-
-
-
-
-
-
-
0.198
2.47
0.31
3.96
typ
0.5
30
20
10
79
83
83
76
89
79
95
0
-
-
-
-
-
+27.5
0.228
2.72
4.36
max
0.9
40
15
16
30
30
16
-
-
-
-
-
-
-
[AK4640]
2005/04
dBFS
dBFS
dBFS
Units
Vpp
Vpp
Vpp
Bits
Bits
kΩ
kΩ
kΩ
kΩ
kΩ
dB
dB
pF
dB
dB
dB
dB
dB
dB
pF
V