AK7742EQ

Consumer Circuit PQFP48 0.50 MM PITCH LQFP-48
6,335 有效庫存

AK7742EQ

有效庫存6,335

Consumer Circuit PQFP48 0.50 MM PITCH LQFP-48

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品質保證

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運輸與付款

運輸與付款

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信用卡

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西聯匯款

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速匯金

服務與包裝

服務與包裝

About After Sales Service

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關於包裝

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例子

捲帶式

捲帶式

剪膠帶

剪膠帶

管或託盤

管或託盤

AK7742EQ 數據表
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目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!

快速報價

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詳細說明

GENERAL DESCRIPTION The AK7742 is a highly integrated audio digital processor, including two stereo 24bit DAC’s and one stereo ADC with input selector. The stereo DAC and ADC feature high performance, archiving 106dB and 96dB dynamic range respectively, 8kHz to 96kHz sampling rate are supported. The audio DSP has 1536step/fs parallel processing power, and 74k-bit delay memory allows surround processing, acoustic effect and parametric equalizers. Asthe AK7742 is a RAM based DSP, it is programmable for user requirements. The AK7742 is available in a space saving small 48pin LQFP package.FEATURES ■ DSP: - Word length: 24bit (Data RAM 24bit floating point) - Instruction cycle: 13.6 ns (1536step/fs fs=48kHz; 9216step/fs fs=8kHz) - Multiplier 20 x 16 → 36bit (double precision available) - Divider 20 / 20 →20bit - ALU: 40bit arithmetic operation (overflow margin 4bit) 24bit floating point arithmetic and logic operation - Program RAM: 1536 x 36bit - Coefficient RAM: 1536 x 16bit - Data RAM: 1536 x 24-bit (24bit floating point) - Delay RAM: 74kbit (3072 x 24bit) - Sampling frequency: 8kHz ~96kHz - Master / Slave operation - Serial signal input port (4ch) MSB justified 24bit / LSB justified 24 / 20 / 16bit and I2S - Serial signal output port (6ch) MSB justified 24bit / LSB justified 24 / 16bit and I2S ■ ADC: 2ch (stereo) - 24bit 64 x Over-sampling delta sigma (fs=8kHz~48kHz) - DR, S/N: 96dB (fs=48kHz, fully differential input) - S/(N+D): 84dB (fs=48kHz) - Differential, Single-end Inputs - Digital HPF (fc=1Hz) - 3:1 Analog input selector - Digital Volume (24dB~-103dB, 0.5dB Step, Mute) ■ DAC: 4ch (two stereo pairs) - 24bit 128 x Over-sampling advanced multi-bit (fs=8kHz~96kHz) - DR, S/N: 106dB - S/(N+D): 92dB - Differential output - Digital Volume (24dB~-103dB, 0.5dB Step, Mute) ■ DSP Through Mode ■ I2C BUS interface for micro-controller ■ Power supply: +3.3V ±0.3V, internal regulator for 1.8V ■ Operating temperature range: -20°C~70°C ■ Package: 48pin LQFP (0.5mm pitch)

主要特徵

  • DSP:
  • - Word length: 24bit (Data RAM 24bit floating point)
  • - Instruction cycle: 13.6 ns (1536step/fs fs=48kHz; 9216step/fs fs=8kHz)
  • - Multiplier 20 x 16 → 36bit (double precision available)
  • - Divider 20 / 20 →20bit
  • - ALU: 40bit arithmetic operation (overflow margin 4bit) 24bit floating point arithmetic and
  • logic operation
  • - Program RAM: 1536 x 36bit
  • - Coefficient RAM: 1536 x 16bit
  • - Data RAM: 1536 x 24-bit (24bit floating point)
  • - Delay RAM: 74kbit (3072 x 24bit)
  • - Sampling frequency: 8kHz ~96kHz
  • - Master / Slave operation
  • - Serial signal input port (4ch) MSB justified 24bit / LSB justified 24 / 20 / 16bit and I2S
  • - Serial signal output port (6ch) MSB justified 24bit / LSB justified 24 / 16bit and I2S
  • ADC: 2ch (stereo)
  • - 24bit 64 x Over-sampling delta sigma (fs=8kHz~48kHz)
  • - DR, S/N: 96dB (fs=48kHz, fully differential input)
  • - S/(N+D): 84dB (fs=48kHz)
  • - Differential, Single-end Inputs
  • - Digital HPF (fc=1Hz)
  • - 3:1 Analog input selector
  • - Digital Volume (24dB~-103dB, 0.5dB Step, Mute)
  • DAC: 4ch (two stereo pairs)
  • - 24bit 128 x Over-sampling advanced multi-bit (fs=8kHz~96kHz)
  • - DR, S/N: 106dB
  • - S/(N+D): 92dB
  • - Differential output
  • - Digital Volume (24dB~-103dB, 0.5dB Step, Mute)
  • DSP Through Mode
  • I2C BUS interface for micro-controller
  • Power supply: +3.3V ±0.3V, internal regulator for 1.8V
  • Operating temperature range: -20°C~70°C
  • Package: 48pin LQFP (0.5mm pitch)

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Package Tray Product Status Obsolete
Type Floating Point Interface I2C
Clock Rate ! 18.6MHz On-Chip RAM 23.25kB
Voltage - I/O 3.30V Voltage - Core 1.80V
Operating Temperature ! -20°C ~ 70°C (TA) Mounting Type Surface Mount
Package / Case 48-LQFP Supplier Device Package 48-LQFP (7x7)
Base Product Number AK7742

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 AK7742EQ PDF 下載

常見問題解答

What is AK7742EQ?

The AK7742EQ is a digital MEMS microphone designed by Asahi Kasei Microdevices. It is ideal for applications requiring high-quality audio capture, such as smartphones, tablets, smart speakers, and wearable devices.

How Does AK7742EQ Work?

The AK7742EQ operates by utilizing a microelectromechanical system (MEMS) to convert sound waves into digital audio data. It features a built-in analog-to-digital converter (ADC) and digital signal processing (DSP) capabilities for capturing and processing audio signals with high fidelity and low noise.

How Many Pins does AK7742EQ have and What are the Functions of the Pinout Configuration?

The AK7742EQ is housed in a small package and has a pinout configuration that includes pins for power, ground, digital communication, and audio signal output. The specific pin functions can be found in the datasheet provided by Asahi Kasei Microdevices.

What are the Pros and Cons of AK7742EQ?

Pros:

  • High-Quality Audio Capture: Provides high-fidelity audio capture for various applications.
  • Integrated Functionality: Features a built-in ADC and DSP for simplified audio processing.
  • Compact Form Factor: Small package size ideal for space-constrained designs.
  • Low Power Consumption: Suitable for battery-powered devices.
  • Wide Application Range: Can be used in smartphones, wearables, and other consumer electronics.

Cons:

  • Cost: High-quality MEMS microphones may be associated with higher costs.
  • External Components: May require additional components for noise reduction and signal conditioning in certain applications.

Are There Any Equivalents/Alternatives to AK7742EQ for Recommendation?

Alternatives to the AK7742EQ include the Knowles SPH0641LU4H-1 and the Infineon IM69D130 MEMS microphones, which offer similar high-quality audio capture capabilities.