AK7749VN

MP

DSP with Stereo CODEC + Mic / Lineout Amp + SRC

DSP with Stereo CODEC + Mic / Lineout Amp + SRC

MP

Description

The AK7749VN is a digital signal processor with built-in CODEC and SRC suitable for automotive voice applications. With AKM's proprietary high-performance hands-free software, which has been used in many applications, automotive voice applications can be easily realized and customized with audio effects and additional functions to meet user requests.
For mode switching of voice recognition and status abnormality detection, which was conventionally performed from an external microcontroller, the AK7749VN is equipped with a function that automatically switches modes according to the usage scenario of the voice application. It also has an audio hub that connects multiple digital and analog interfaces, allowing for simple system design without a microcontroller.
4ch ADC with microphone amplifier (S/N:102dB), 2ch DAC with line out amplifier (S/N:100dB)
4ch digital microphone I/F, 4ch SRC

Key Features

  • Stand-alone detection of voice recognition mode, disconnection, and system malfunctions, with automatic switching of up to 8 modes.
  • Equipped with an audio hub that enables input/output in multiple sampling frequencies and data formats.
  • Supports 2mic beamforming, effective for microphone/speaker modules.

Applications

  •                                 TCU, E-call, drive recorder, In-vehicle microphone/speaker module
                                

Specifications

Part Number
AK7749VN
MAX fs [kHz]
48
Number of Channels (AD)
4
Number of Channels (DA)
2
S/N (AD) [dB]
102
S/N (DA) [dB]
100
Number of Channels (DSP Input)
24 (TDM)
Number of Channels (DSP Output)
24 (TDM)
Clock Speed (MAX.) [MHz]
196.608
Data RAM [Word]
--
Power Supply Voltage 1 (MIN.) [V]
3.0
Power Supply Voltage 1 (TYP.) [V]
3.3
Power Supply Voltage 1 (MAX.) [V]
3.6
Power Supply Voltage 2 (MIN.) [V]
1.7
Power Supply Voltage 2 (TYP.) [V]
3.3
Power Supply Voltage 2 (MAX.) [V]
3.6
Power Supply Voltage 3 (MIN.) [V]

                                
Power Supply Voltage 3 (TYP.) [V]

                                
Power Supply Voltage 3 (MAX.) [V]

                                
Power Supply Voltage 4 (MIN.) [V]

                                
Power Supply Voltage 4 (TYP.) [V]

                                
Power Supply Voltage 4 (MAX.) [V]

                                
Other
Automotive grade
Operating Temperature [℃]
-40 to 105
Device Package
HVQFN
Number of Pins
48

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL2
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram

Quality Data

The AKM Group prepares quality data.