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