AK4951AEN

MP

24-bit 2 ch ADC & 2 ch DAC with Auto HPF, ALC / Eq and MIC / HP / SPK-Amp.

24-bit 2 ch ADC & 2 ch DAC with Auto HPF, ALC / Eq and MIC / HP / SPK-Amp.

MP

Description

The AK4951AEN is a low power 24-bit stereo CODEC with a microphone, headphone and speaker amplifiers. The AK4951AEN supports sampling frequency from 8kHz to 48kHz. It is suitable for a wide range of application from speech signal processing for narrowband, wideband and super wideband to sound signal processing for audio band. The input circuits include a microphone amplifier, an automatic wind noise reduction filter of the proprietary algorithms and a high performance digital ALC (automatic level control) circuit, therefore the AK4951AEN can record with high-quality sound regardless of whether indoors or outdoors. In addition, the output circuits include a cap-less headphone amplifier with a negative voltage generated by charge pump circuit and a speaker amplifier with 1W output power. It is suitable for various products as well as portable applications with recording/playback function.
The AK4951AEN are available in a small 32-pin QFN (4mm x 4mm, 0.4mm pitch: AK4951AEN) and a 32-pin BGA (3.5mm x 3.5mm, 0.5mm pitch: AK4951EG) packages saving mounting area on the board.

Applications

  •                                 IP Cameras, Digital Cameras, IC Recorders, Tablets, Wireless Headphones, Headsets, etc.
                                

Specifications

Part Number
AK4951AEN
Number of Channels (AD)
2
Number of Channels (DA)
2
Bits [bit]
24
S/N (AD) [dB]
96
S/N (DA) [dB]
97
THD (AD) [dB]
-85
THD (DA) [dB]
-85
Power Supply Voltage (MIN.) [V]
2.8
Power Supply Voltage (TYP.) [V]
3.3
Power Supply Voltage (MAX.) [V]
3.5
Microphone Amplifier
Yes
Speaker Amplifier
Monaural
Other
Auto Wind Noise Cut, SPK-Amp: 1W Output
Operating Temperature [℃]
-40 to 85
Device Package
HWQFN
Number of Pins
32

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL1
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
5000
Replacement P/N

                                

Block Diagram

Block Diagram