AK4951AEN

MP

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

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

MP

Description

The AK4951 is a low power 24-bit stereo CODEC with a microphone, headphone and speaker amplifiers. The AK4951 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 AK4951 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 AK4951 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
                                

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]
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
Recommended Order Quantity 1 [pcs.] 35000
Recommended Order Quantity 2 [pcs.] 10000
Standard Packing Quantity [pcs.] 5000
Replacement P/N

Block Diagram

Block Diagram