參數(shù)資料
型號： AK7716VT
英文描述： Consumer IC
中文描述： 消費性IC
文件頁數(shù)： 1/60頁
文件大?。?/td> 1171K
代理商： AK7716VT
[ASAHI KASEI]
[AK7716]
<M0057-E-01>
1999/09
- 1 -
General Description
The AK7716 is a highly integrated audio processing IC, including 4 24-bit output D/A channels, a stereo 20-bit input
A/D, on-chip DSP. High quality analog performance is provided by quad D/A with 113dB dynamic range, and stereo
A/D with 98dB dynamic range. These converters support the standard audio sampling frequencies of 48,44.1 and
32kHz.
The programmable 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 AK7716 has a self-boot capability, using an external
EEPROM.
The AK7716 can be used to implement complete sound field control, such as echo, 3D, parametric equalization,
etc. It is packaged in a 100-lead LQFP package.
Features
DSP:
-
Word length: 24-bit (Data RAM)
-
Instruction cycle time: 40.69ns (512fs, fs=48kHz)
-
Multiplier: 24 x 16
→
40-bit
-
Divider: 24 / 24
→
16-bit
-
ALU: 34-bit arithmetic operation (Overflow margin: 4bit)
-
24-bit arithmetic and logic operation
-
Shift+Register: 1, 2, 3, 4, 8 and 15 bits shifted left
-
1, 2, 3, 4, 8 and 15 bits shifted right
-
Other numbers in parentheses are restricted. Provided with indirect shift function
-
Program RAM: 448 x 32-bit
-
Coefficient RAM: 384 x 16-bit
-
Data RAM: 256 x 24-bit
-
Offset RAM: 48 x 20-bit
-
External Memory: Up to16Mbit DRAM or up to 1Mbit SRAM
-
Sampling frequency: 32kHz to 48kHz
-
Serial interface port for micro-controller
-
Master clock: 512fs, 384fs, 256fs
-
Master/Slave operation
-
Serial signal input port ( 2 to 6 ch ): 16/20/24-bit : Output port ( 4 to 8 ch ): 24-bit
-
Self-boot function using 32kbit E
2
PROM AK93C95A
ADC: 2 channels
-
20-bit 64x Over-sampling delta sigma
-
DR, S/N :
98dB
-
S/(N+D) :
92dB @-0.5dBFS
-
Digital HPF (fc = 1Hz)
-
Single-ended or Full-differential Input
DAC: 4 channels
-
24-bit 128x Over-sampling advanced multi-bit
-
DR, S/N : 113dBA
-
S/(N+D) :
90dB @-10dBFS, 83dB @0dBFS
-
Full-differential Output
-
SMUTE function
Other
-
Power supply:
+5V
±
5%
-
Operating temperature range: -40
°
C~85
°
C
Package:
100pin LQFP (0.5mm pitch
)
20bit 2ch ADC + 24bit 4ch DAC with Audio DSP
AK7716
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