CS53L21集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

CS53L21属于集成电路（IC）的ADC/DAC-特殊用途。由凌云逻辑制造生产的CS53L21ADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

GENERAL DESCRIPTION

The CS53L21 is a highly integrated, 24-bit, 96 kHz, low power stereo A/D. Based on multi-bit, delta-sigma modulation, it allows infinite sample rate adjustment between 4 kHz and 96 kHz. The ADC offers many fea tures suitable for low power, portable system applications.

FEATURES

♦ 98 dB Dynamic Range (A-wtd)

♦ -88 dB THD+N

♦ Analog Gain Controls

– +32 dB or +16 dB MIC Pre-Amplifiers

– Analog Programmable Gain Amplifier (PGA)

♦ +20 dB Digital Boost

♦ Programmable Automatic Level Control (ALC)

– Noise Gate for Noise Suppression

– Programmable Threshold and Attack/Release Rates

♦ Independent Left/Right Channel Control

♦ Digital Volume Control

♦ High-Pass Filter Disable for DC Measurements

♦ Stereo 3:1 Analog Input MUX

♦ Dual MIC Inputs

– Programmable, Low Noise MIC Bias Levels

– Differential MIC Mix for Common Mode Noise Rejection

♦ Very Low 64 Fs Oversampling Clock Reduces Power Consumption

SYSTEM FEATURES

♦ 24-bit Conversion

♦ 4 kHz to 96 kHz Sample Rate

♦ Multi-bit Delta Sigma Architecture

♦ Low Power Operation

– Stereo Record (ADC): 8.72 mW @ 1.8 V

– Stereo Record (MIC to PGA and ADC): 13.73 mW @ 1.8 V

♦ Variable Power Supplies

– 1.8 V to 2.5 V Digital & Analog

– 1.8 V to 3.3 V Interface Logic

♦ Power Down Management

– ADC, MIC Pre-Amplifier, PGA

♦ Software Mode (I²C® & SPI™ Control)

♦ Hardware Mode (Stand-Alone Control)

♦ Flexible Clocking Options

– Master or Slave Operation

♦ Digital Routing Mixes

– Mono Mixes

APPLICATIONS

♦ Portable Audio Players

♦ Digital Microphones

♦ Digital Voice Recorders

♦ Voice Recognition Systems

♦ Audio/Video Capture Cards