AK4646_11 Datasheet, PDF (4/81 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/SPK-AMP

[AK4646]
■ Comparison with AK4642/AK4643
1. Function
Function
AK4642
AK4643
AK4646
AVDD
2.6V ∼ 3.6V
2.2V ∼ 3.6V
DVDD
2.6V ∼ 3.6V
1.6V ∼ 3.6V
Power Supply for SPK-Amp 2.6V ∼ 5.25V (HVDD)
2.2V ∼ 4.0V (SVDD)
Output Voltage of
0.75 x AVDD
0.8 x AVDD
MIC Power
MIC-Amp
0dB/+20dB/+26dB/+32dB
0dB/+10dB/+17dB/+20dB/
+23dB/+26dB/+29dB/
+32dB
HPF / LPF
1 Step
HPF : 2 Step, LPF : 1 Step
Notch filter
No
5 Band
ALC Recovery Operation 128/fs ∼ 1024/fs
128/fs ∼ 16384/fs
128/fs ∼ 16384/fs
Waiting Period
Read of ALC Volume
No
No
Yes
Output Volume
+12dB ∼ -115dB, 0.5dB Step
+36dB ∼ -54dB, 0.375dB Step
(Note 1)
0dB ∼ -18dB, 6dB Step
Headphone-Amp
Yes
No
Bass Boost
Yes
No
Receiver-Amp
No
Yes
No
SPK-Amp Output Power 400mW@3.3V
1.2W@5V
400mW@3.3V
Analog Mixing
1 Mono
2 Stereo
1 Mono
ADC Input Selector
2 Stereo
3 Stereo
2 Stereo
SPK-Amp Maximum Output 8.5Vpp@SVDD=5V
6.33Vpp@SVDD=3.8V
Voltage for Piezo Speaker
μP I/F
3-Wire(Write only), I2C-Bus
3-Wire(Read/Write)
Audio I/F Format
DSP Mode
No
Yes
No
EXT Master Mode
No
Yes
No
Master Clock frequency for 11.2896MHz, 12MHz, 12.288MHz, 13.5MHz 12MHz, 13.5MHz, 24MHz,
PLL Mode
24MHz, 27MHz
27MHz
Note 1. ALC and Volume circuits are shared by input and output. Therefore, it is impossible to use ALC and Volume
function at same time for both recording and playback mode.
MS0557-E-05
-4-
2011/01