[AK4634]
ANALOG CHRACTERISTICS
(Ta=25°C; AVDD = DVDD = SVDD=3.3V; VSS1-3 =0V; fs=8kHz, BICK=64fs; Signal Frequency=1kHz; 16bit Data;
Measurement frequency=20Hz ∼ 3.4kHz; EXT Slave Mode; unless otherwise specified)
Parameter
min
typ
max
Units
MIC Amplifier: MIC, LIN pins ; MDIF bit = “0”; (Single-ended input)
Input Resistance
Gain
20
-
-
-
-
-
-
-
-
30
0
40
-
-
-
-
-
-
-
-
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
(MGAIN3-0 bits = “0000”)
(MGAIN3-0 bits = “0001”)
(MGAIN3-0 bits = “0010”)
(MGAIN3-0 bits = “0011”)
(MGAIN3-0 bits = “0100”)
(MGAIN3-0 bits = “0101”)
(MGAIN3-0 bits = “0110”)
(MGAIN3-0 bits = “0111”)
(MGAIN3-0 bits = “1000”)
(MGAIN3-0 bits = “1001”)
20
26
32
10
17
23
29
3
-
-
-
-
6
MIC Amplifier: MICP, MICN pins ; MDIF bit = “1”; (Full-differential input)
Input Voltage
(Note 6)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.228
0.114
0.057
0.720
0.322
0.161
0.080
1.14
Vpp
Vpp
Vpp
Vpp
Vpp
Vpp
Vpp
Vpp
(MGAIN3-0 bits = “0001”)
(MGAIN3-0 bits = “0010”)
(MGAIN3-0 bits = “0011”)
(MGAIN3-0 bits = “0100”)
(MGAIN3-0 bits = “0101”)
(MGAIN3-0 bits = “0110”)
(MGAIN3-0 bits = “0111”)
(MGAIN3-0 bits = “1001”)
MIC Power Supply: MPI pin
Output Voltage
Load Resistance
Load Capacitance
(Note 7)
TBD
2
-
2.64
-
-
TBD
-
30
V
kΩ
pF
ADC Analog Input Characteristics: MIC/LIN Æ ADC, MIC Gain=20dB, IVOL=0dB, ALC1bit = “0”
Resolution
Input Voltage (MIC Gain=20dB, Note 8)
S/(N+D)
D-Range
S/N
-
-
0.198
84
86
86
16
TBD
-
-
-
Bits
Vpp
dB
dB
dB
TBD
TBD
TBD
TBD
(−1dBFS) (Note 9)
(−60dBFS)
DAC Characteristics:
Resolution
16
Bits
Mono Line Output Characteristics: AOUT pin, DAC → AOUT, RL=10kΩ
Output Voltage (Note 10) LOVL bit = “0”
LOVL bit = “1”
TBD
TBD
TBD
TBD
TBD
10
1.98
2.50
85
93
93
-
TBD
TBD
-
-
-
Vpp
Vpp
dB
dB
dB
S/(N+D)
D-Range
S/N
(0dBFS) (Note 9)
(-60dBFS)
Load Resistance
Load Capacitance
-
30
kΩ
pF
-
-
Speaker-Amp Characteristics: SDTI Æ SPP/SPN pins, ALC2 bit = “0”, SPKG bit = “0”, RL=8Ω + 10μH,
BTL = SVDD=3.3V
Output Power (0dBFS)
S/(N+D) 400mW output
150mW output
Output Noise Level
Load Resistance
Load Capacitance
(Note 11)
-
-
-
400
20
55
-80
-
-
-
-
-
-
mW
dB
dB
dBV
Ω
TBD
8
-
-
30
pF
Rev. 0.5
2007/10
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
