AK7750VT中文资料PDF规格书
AK7750VT规格书详情
General Description
The AK7750 is a highly integrated Audio Digital Signal Processor with a stereo audio codec in one chip.
The AK7750 combines an on-chip DSP and an ARM7processor that can be used to create Echo
Cancellation (EC) and Noise Cancellation (NC) functions. These functions make the AK7750 a perfect
choice for hands-free phones thatrequire suppressing acoustic echoand noise. Voice quality and noise
suppression levels can be precisely adjusted by externally setting various parameters. Additionally, no
external Flash, ROM, or RAM is required as memories for Echo and Noise Cancellation are integrated on
chip.
Features
[DSP Block]
Data Word Length: 24 bit
Machine Cycle: 27.1 ns (fastest) (768fs at 48 KHz)
Number of Steps: 768 stepsmax. at fs = 48 KHz
4608 steps max. at fs = 8 KHz
192 steps max. at fs = 192 KHz
Multiply: 24 x 16 -> 40 bit (enables double precision operation)
Division: 24 / 24 -> 24 bit or 16 bit
ALU: 34 bit arithmetic operation (overflow margin 4 bits)
24 bit arithmetic & logic operations
Shift: 1,2,3,4,6,8,15 Bit Left Shift with indirect shift function
1,2,3,4,8,14,15 bit RightShift with indirect shift function
Program RAM (PRAM): 768 words x 32 bit
Coefficient RAM (CRAM): 1024 words x 16 bit
Data RAM (DRAM): 256 words x 24 bit
Offset RAM (OFRAM): 48 words x 12 bit
Delay RAM (DLRAM): 64K bits (following 3 types are selectable):
- 1K words 24 bit
- 1K words 24 bit & 2K words 16 bit (limited pointer capability)
- 4kword 16bit
Data Compression/Expansion circuits for 16 bit data handling are integrated on-chip (Dynamic-range: 23 bit equivalent, S/N+D: 15 bit equivalent (FS)).
- In Hands-free mode, Delay RAM cannot be used.
Registers: 34 bits x 4 (ACC) [for ALU]
24 bit x 8 (TMP) [for DBUS Interface]
24 bit x 6 stage stacks (PTMP) [for DBUS Interface]
On-chip ARM7TDMI Processor:
[ADC Block]
24 Bit 2 Channels (fs: 8 KHz ~ 48 KHz)
S/N+D: 91 dB (fs = 48 KHz)
Dynamic Range & S/N: 98 dBA (fs = 48 KHz)
On-chip DC offset canceling High Pass Filter
[DAC Block]
24 Bit 2 Channels
S/N+D: 86 dB (fs = 48 KHz)
Dynamic Range & S/N: 98 dBA (fs = 48 KHz)
[Input/Output Digital Interface]
Serial Data Input 8 channels (10 channels with on-board codec.)
Serial Data Output 6 channels (8 channels with on-board codec.)
Microprocessor Interface: 1 set of inputs and outputs
[General]
On-chip PLL
On-chip EEPROM (AK6512C, AK6514C) Interface
Single 3.3 V +/- 0.3 V Power Supply
Operating Temperature Range: -40°C to +85°C
64-Pin LQFP
产品属性
- 型号:
AK7750VT
- 制造商:
AKM
- 制造商全称:
AKM
- 功能描述:
Audio DSP with Built-in Hands-Free Phone Features
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
AKM |
2018+ |
QFN |
6000 |
全新原装正品现货,假一赔佰 |
询价 | ||
AKM |
21+ |
QFP |
35200 |
一级代理/放心采购 |
询价 | ||
AKM |
2023+ |
QFP |
58125 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | ||
AKM |
18+ |
QFP |
800 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
AKM |
22+ |
QFN |
8000 |
原装正品支持实单 |
询价 | ||
AKM |
21+ |
QFN |
12588 |
原装正品,自己库存 |
询价 | ||
AKM |
21+ |
QFP |
56000 |
公司进口原装现货 批量特价支持 |
询价 | ||
AKM |
2023+ |
QFP |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
AKM |
23+ |
QFP |
8230 |
全新原装真实库存含13点增值税票! |
询价 | ||
AKM |
16+ |
QFP |
2500 |
进口原装现货/价格优势! |
询价 |