AK4951EG Datasheet, PDF (8/30 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951]
■ Comparison Table of the AK4954A
1. Function
Function
AK4954A
AK4951
Resolution
32bit
24bit
AVDD
2.5V  3.5V
2.8V ~ 3.5V
SVDD
0.9V  5.5V
1.8V  5.5V
DVDD
1.6V ~ 1.98V
←
TVDD
1.6V or (DVDD-0.2)V  3.5V
←
ADC DR, S/N
97dB @MGAIN = +20dB
88dB @MGAIN = +18dB
100dB @MGAIN = 0dB
96dB @MGAIN = 0dB
DAC(Headphone) S/N
100dB
97dB
Input Level
typ. 0.8 x AVDD @MGAIN=0dB typ. 2.07Vpp @MGAIN=0dB
Output Level
typ. 0.485 x AVDD @DVOL=0dB typ. 1.62Vpp @DVOL=0dB
(Headphone)
MIC Power Output
typ. 2.3V (2 Line Outputs)
typ. 2.0V or 2.4V (2 Line Outputs)
Voltage
MIC Power Output Noise -120dBV (A-weighted)
-108dBV (A-weighted)
MIC-Amp Gain
+26dB/+20dB/+13dB/+6dB/0dB +30dB ~ 0dB, 3dB Step
MIC Sensitivity
No
Yes
Correction
Automatic Wind Noise No
Yes
Reduction
Output Volume
+36dB  -52.5dB, 0.375dB Step +36dB  -52.5dB, 0.375dB Step
(Note 1)
(Note 1)
& +6dB  -65.5dB, 0.5dB Step
& +12dB  -89.5dB, 0.5dB Step
3-band DRC
Serial μP I/F
Yes
I²C Bus
No
AK4951EN: I²C Bus
AK4951EG: 3-wire Serial, I²C Bus
Power Consumption
(Stereo Recording) typ. 10.4mW (Low Power Mode) typ. 9.3mW
(Headphone Playback) typ. 6.2mW (Low Power Mode)
typ. 8.6mW
Package
AK4951EN:
32-pin QFN
32-pin QFN
(4 x 4mm, 0.4mm pitch)
(4 x 4mm, 0.4mm pitch)
AK4951EG:
32-pin BGA
(3.5 x 3.5mm, 0.5mm pitch)
Note 1. ALC and Volume circuits are shared by input and output. Therefore, it is impossible to use ALC and
Volume control function at the same time for both recording and playback mode.
2. Pin
Pin#
15
31
32
AK4954A
MCKI/OVF
MRF
RIN3
AK4951
MCKI
REGFIL
RIN3/BEEP
014004561-E-00-PB
-8-
2014/08