參數(shù)資料
型號(hào)： AK7714VT
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： 20位音頻編解碼器與DSP和內(nèi)存延遲
文件頁(yè)數(shù)： 1/48頁(yè)
文件大?。?/td> 516K
代理商： AK7714VT
[ASAHI KASEI]
[AK7714]
M0018-E-00
‘98/07
- 1 -
General Description
The AK7714 is a highly integrated audio processing IC with 20-bit stereo ADC and 4-channel DAC plus
on-chip DSP with 64-kbit delay RAM. The built-in ADC has a dynamic range of 99 dB with S/(N+D) of 92 dB,
and the DAC has a dynamic range of 98 dB with S/(N+D) of 89 dB, thereby ensuring high performances.
The AK7714 is compatible with each of the sampling frequencies of 48 kHz, 44.1 kHz or 32 kHz, and a
program of 512 steps (when sampling at 44.1 kHz or 32 kHz) can be executed in one sampling time. The
AK7714 is a programmable audio DSP containing RAM for delay. This allows sound field control programs to
be implemented for surround sound, echo 3D, parametric equalizer and the like.
Furthermore, the AK7714 uses a small 100-pin LQFP package, providing the optimum system for the sound
field of car audio equipment which is required to meet space saving requirements.
Features
DSP:
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Word length:
Instruction cycle time:
Multiplier: 24 x 16 40-bit
Divider: 24 / 24 16-bit
ALU:
34-bit arithmetic operation (Overflow margin: 4 bits)
24-bit arithmetic and logic operation
Shift+Register: 1, 2, 3, 4, 8 and 15 bits shifted left
1, 2, 3, 4, (6, 14), 8 and 15 bits shifted right
( )Numbers in parentheses are restricted.
Provided with indirect shift function
Program RAM: 448 x 32-bit
Coefficient RAM: 384 x 16-bit
Data RAM: 128 x 24-bit
Internal delay memory: 4096 x 16-bit or 2048 x 24-bit
Sampling frequency: 32 kHz to 48 kHz
Serial micro controller interface
Master clock: 512/384/256 fs (512 fs for sampling at 44.1 kHz or 32 kHz)
Master/slave operation
Serial signal input port (2 to 6 ch), output port (2 to 6 ch) : 16/20/24-bit
ADC: 2 channels
-
20-bit 64 x Over-sampling delta sigma
-
DR, S/N : 99 dB
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S/(N+D) : 92 dB
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Digital HPF (fc = 1 Hz)
DAC: 4 channels
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20-bit 128 x Over-sampling delta sigma
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DR, S/N : 98 dB
-
S/(N+D) : 89 dB
Others
-
Power voltage: + 5 V
±
5%
-
Operating temperature range: -40
°
C to +85
°
C
Package: 100-pin LQFP (0.5 mm pitch)
24-bit (Data RAM)
44.2 ns
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20-Bit Audio Codec with DSP and Delay RAM
AK7714
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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