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General Description
The AK7712A is a DSP(Digital Signal Processor) with built-in high performance 20bit 2ch ADC and 4ch DAC, on purposeto control the sound field. It is possible to calculate 383 steps on 44.1kHz and 48kHz sampling respectively. In case of 32kHz sampling, it can caluculate up to 511 steps. With a combination of this LSI and external memory for delay data,it can berealized easily to control the sound field such as Echo, Surround Presence Controller, and Key- control which are needed forsomething like Karaoke. Parametric Equalizing can be done without external memory.
Features
[ DSP unit ]
Word length: 24-bit (data RAM)
Instruction cycle time: 54ns(maximum speed)
Multiplier: 24 ×16 →40-bit
Divider: 16 ÷16 →16-bit
Program RAM: 384 ×32 bit
External memory: DRAM,Pseudo-SRAM and SRAM can be connected (only use for delay data).
Sampling frequency: 32kHz∼48kHz
Automatic clear function of external RAM:
47msec after bringing RST high at fs=48kHz (include internal data RAM)
Microcomputer interface:
synchronized signal type 8-bit serial input 1 channel,
synchronized signal type 24-bit serial output 1 channel
Master clock: 512(511)/384(383)/256(255)fs
The value inside ( ) is maximum calculation steps.
512fs mode is available when 32kHz sampling is chosen.
Conversion of master/slave mode for LRCK and BCLK:
When master mode is selected, the outputs of LRCK and BCLK depend on the set- up for input format.
Serial input ports(2~4ch), and output ports(2~6ch) : 16/20/24 bit words
[ ADC unit ]
20-bit 64 ×Oversampling ∆ΣADC: 2ch
S/(N+D): 92dB
DR, S/N: 98dB
[ DAC unit ]
20-bit 128 ×Oversampling ∆ΣDAC: 4ch
S/(N+D): 86dB
DR, S/N: 97dB
Digital HPF (fc=1Hz)
[ Total ]
Power supply: +5V
Package: 100pin LQFP(0.5mm pitch) -
Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
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- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/07/01 07:33 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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Free shipping without minimum order.
