[AK4646]
■
Comparison with AK4642/AK4643
1. Function
Function
AVDD
DVDD
Power Supply for SPK-Amp
Output Voltage of
MIC Power
MIC-Amp
HPF / LPF
Notch filter
ALC Recovery Operation
Waiting Period
Read of ALC Volume
Output Volume
AK4642
AK4643
2.6V
∼
3.6V
2.6V
∼
3.6V
2.6V
∼
5.25V (HVDD)
0.75 x AVDD
0dB/+20dB/+26dB/+32dB
1 Step
No
128/fs
∼
1024/fs
AK4646
2.2V
∼
3.6V
1.6V
∼
3.6V
2.2V
∼
4.0V (SVDD)
0.8 x AVDD
0dB/+10dB/+17dB/+20dB/
+23dB/+26dB/+29dB/
+32dB
HPF : 2 Step, LPF : 1 Step
5 Band
128/fs
∼
16384/fs
Yes
+36dB
∼
-54dB, 0.375dB Step
0dB
∼
-18dB, 6dB Step
No
No
No
400mW@3.3V
1 Mono
2 Stereo
6.33Vpp@SVDD=3.8V
3-Wire(Read/Write)
No
No
12MHz, 13.5MHz, 24MHz,
27MHz
impossible to use ALC and Volume
128/fs
∼
16384/fs
No
No
+12dB
∼
-115dB, 0.5dB Step
Headphone-Amp
Yes
Bass Boost
Yes
Receiver-Amp
No
Yes
SPK-Amp Output Power
400mW@3.3V
1.2W@5V
Analog Mixing
1 Mono
2 Stereo
ADC Input Selector
2 Stereo
3 Stereo
SPK-Amp Maximum Output 8.5Vpp@SVDD=5V
Voltage for Piezo Speaker
3-Wire(Write only), I2C-Bus
μP
I/F
Audio I/F Format
DSP Mode
No
Yes
EXT Master Mode
No
Yes
Master Clock frequency for 11.2896MHz, 12MHz, 12.288MHz, 13.5MHz
PLL Mode
24MHz, 27MHz
Note 1. ALC and Volume circuits are shared by input and output. Therefore, it is
function at same time for both recording and playback mode.
MS0557-E-02
-4-
2007/05
AKM [ ASAHI KASEI MICROSYSTEMS ]
