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參數資料
| 型號： | AK7712A-VT |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No |
| 中文描述： | 內置20位ADC / DAC的尖端音頻DSP |
| 文件頁數： | 1/87頁 |
| 文件大小： | 968K |
| 代理商： | AK7712A-VT |
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ASAHI KASEI
[AK7712A-VT]
0180-E-02
1997/12
- 1 -
AK7712A-VT
Built-in 20-bit ADC/DAC Sophisticated Audio DSP
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
Σ
ADC: 2ch
S/(N+D): 92dB
DR, S/N: 98dB
[ DAC unit ]
20-bit 128
×
Oversampling
Σ
DAC: 4ch
S/(N+D): 86dB
DR, S/N: 97dB
Digital HPF (fc=1Hz)
[ Total ]
Power supply: +5V
Package: 100pin LQFP(0.5mm pitch)
相關PDF資料 |
PDF描述 |
|---|---|
| AK7714 | Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No |
| AK7714VT | Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AK7712AVTP | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:BUILT-IN 20-BIT ADC/DAC SOPHISTICATED AUDIO DSP |
| AK7714 | 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Audio Codec with DSP and Delay RAM |
| AK7714VT | 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Audio Codec with DSP and Delay RAM |
| AK7716VT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| AK7719 | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power DSP for Voice and Audio Processing |
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