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AK7744ET
AK7744ET - Brand New AKM IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
General Description
The AK7740 is a highly integrated audio processing IC, including four 24-bit output D/A channels, a stereo 24-bit input A/D, and an audio DSP. High quality analog output performance is provided by the quad DAC with 97dB dynamic range, and the stereo ADC with 98dB dynamic range. The converters support sampling frequencies from 32kHz to 48kHz. This device includes 72kbits of SRAM audio delay that is suitable for simulated sound fields. The DSP is optimized for audio signal processing. The design allows up to 512 execution lines per audio sample cycle, with multiple functions per line. The AK7740 is ideal for sound field control applications, including echo, 3D, parametric equalization, and speaker compensation. It is housed in a 48-lead LQFP package.
Features
DSP:
- Word length: 24-bit (Data RAM)
- Instruction cycle time: 40ns (512fs, fs=48kHz )
- Multiplier: 24 x 16 → 40-bit
- Divider: 24 / 24 → 16-bit or 24-bit
- ALU: 34-bit arithmetic operation (overflow margin: 4-bits)
- 24-bit arithmetic and logic operation
- Shift+Register: 1, 2, 3, 4, 6, 8 and 15 bits shifted left
- 1, 2, 3, 4, 8 , 14 and 15 bits shifted right
- Other numbers in parentheses are restricted. Provided with indirect shift
function
- Program RAM: 512 x 32-bit
- Coefficient RAM: 512 x 16-bit
- Data RAM: 256 x 24-bit
- Offset RAM: 48 x 13-bit
- (6144 x 12-bit / 3072 x 24-bit / 4096 x 12-bit + 1024 x 24-bit )
- Internal Memory: 72kbit SRAM
- Sampling frequency: 32kHz to 48kHz
- Serial interface port for micro-controller
- Master clock: 512fs
- Master/Slave operation
- Serial signal input port ( 2 to 4 ch ): 16/20/24-bit : Output port ( 2 ch
): 24-bit
ADC: 2 channels
- 24-bit 64x over-sampling delta sigma
- DR, S/N : 98dBA ( full-differential Input )
- S/(N+D) : 89dB
- Digital HPF (fc = 1Hz)
- Single-ended or full-differential Input
DAC: 4 channels
- 24-bit 128x over-sampling advanced multi-bit
- DR, S/N : 97dBA
- S/(N+D) : 89dB
- Single ended or differential output
Input Selector
- 1 full-differential and 4 single-ended Input
Other
- Power supply: +3.3V±10%
- Operating temperature range: -10°C~70°C
- Package: 48pin LQFP (0.5mm pitch)
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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