ak4561 AKM Semiconductor, Inc., ak4561 Datasheet - Page 7

• Manufacturer Part Number: ak4561
• Description: 16bit Codec With Built-in Alc And Mic/hp-amp
• Manufacturer: AKM Semiconductor, Inc.

Pre-Amp Characteristics:
Input Resistance: Positive Input Pin (Note 7)
Maximum Output Voltage (Note 9)
Output Voltage (Input Voltage = -26dBV, Gain = +16dB) (Note 10)
Step (+12, +16, +20, +24dB)
Load Resistance
Load Capacitance (Note 11)
Inverter-Amp Characteristics: (Gain:0dB)
Maximum Output Voltage (Note 9)
Load Resistance
Load Capacitance (Note 11)
EQ-Amp Characteristics: (Gain:0dB)
Maximum Output Voltage (Note 9)
Load Resistance
Load Capacitance (Note 11)
HPF-Amp Characteristics: (Gain: 0dB)
Maximum Output Voltage (Note 9)
Load Resistance
Load Capacitance (Note 11)
MIC Block Characteristics: Measured via HPF_O_L/HPF_O_R (Note 10)
S/(N+D) (-10dBV Output) (Note 12)
Output Noise Voltage (No signal input, Rg = 1k ) (Note 12)
Interchannel Gain Mismatch (Note 12)
Interchannel Isolation (Note 12)
MIC Power Supply Characteristics:
Output Voltage (5k Load)
Output Current
ASAHI KASEI
(Ta=25 C; VA=VD=MVDD=VT=2.8V, HVDD=4.5V; AGND=DGND=MVSS=0V; fs=48kHz;
Input Frequency =1kHz; Measurement width=20Hz
Note 7. INT_MIC_L, INT_MIC_R, EXT_MIC_L and EXT_MIC_R pins
Note 8. Gain of Pre-Amp is +16dB. Input resistance of Pre-Amp is changed by gain.
Note 9. Maximum output voltage is typically (MVDD x 0.7) V.
Note 10. Pre-Amp(Gain:+16dB)
Note 11. When output pin drives some capacitive load, some resistor should be added in series between output pin and
Note 12. Pre-Amp (Gain: +16dB)
Rev. 0.9
Gain=12dB: 2.4k
capacitive load.
HPF-Amp (Gain: 0dB, HPF OFF)
Negative Input Pin (Note 8)
(Note 10)
(Note 10)
Parameter
30% , Gain=20dB: 950
(Note 10)
HPF-Amp (Gain:0dB, HPF OFF)
Inverter-Amp (Gain: +0dB)
ANALOG CHARACTERISTICS
AKM CONFIDENTIAL
(Note 10)
20kHz; unless otherwise specified)
30% , Gain=24dB: 600
- 7 -
EQ-Amp (Input/Feedback resistance: 5k )
min
2
3
3
3
30%
100
typ
1.5
-10
-94
-99
0.5
0.5
2.0
+4
60
60
70
70
max
-3.2
-3.2
-3.2
-3.2
20
20
20
20
3
[AK4561]
Units
dBV
dBV
dBV
dBV
dBV
dBV
dBV
mA
2000/09
k
k
k
k
k
k
dB
dB
dB
dB
dB
dB
dB
pF
pF
pF
pF
V