24位采样频率为192KHz的立体声音频 DAC
Description
The PCM1794A device is a monolithic, CMOS-integrated circuit that includes stereo digital-to-analog converters DACs and support circuitry in a small 28-pin SSOP package. The data converters use ’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1794A device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.
Features
• 24-Bit Resolution
• Analog Performance:
– Dynamic Range:
– 132 dB 9 V RMS, Mono
– 129 dB 4.5 V RMS, Stereo
– 127 dB 2 V RMS, Stereo
– THD+N: 0.0004%
• Differential Current Output: 7.8 mA p-p
• 8× Oversampling Digital Filter:
– Stop-Band Attenuation: –130 dB
– Pass-Band Ripple: ±0.00001 dB
• Sampling Frequency: 10 kHz to 200 kHz
• System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
• Accepts 16-Bit and 24-Bit Audio Data
• PCM Data Formats: Standard, I2S, and Left-Justified
• Optional Interface Available to External Digital Filter or DSP
• Digital De-Emphasis
• Digital Filter Rolloff: Sharp or Slow
• Soft Mute
• Zero Flag
• Dual-Supply Operation: 5-V Analog, 3.3-V Digital
• 5-V Tolerant Digital Inputs
• Small 28-Pin SSOP Package
Applications
• A/V Receivers
• DVD Players
• Musical Instruments
• Car Audio Systems
• Other Applications Requiring 24-Bit Audio
输出接口数 2
供电电流 45.0 mA
通道数 2
针脚数 28
位数 24
耗散功率 0.25 W
采样率 200 ksps
功耗 205 mW
工作温度Max 85 ℃
工作温度Min -25 ℃
耗散功率Max 250 mW
数模转换数DAC 2
电源电压 4.75V ~ 5.25V
电源电压Max 5.25 V
电源电压Min 4.75 V
安装方式 Surface Mount
引脚数 28
封装 SSOP-28
宽度 5.3 mm
封装 SSOP-28
工作温度 -25℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/06/15
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
PCM1794ADBR TI 德州仪器 | 当前型号 | 当前型号 |
PCM1794ADB 德州仪器 | 完全替代 | PCM1794ADBR和PCM1794ADB的区别 |
PCM1794DB 德州仪器 | 完全替代 | PCM1794ADBR和PCM1794DB的区别 |
PCM1794ADBG4 德州仪器 | 完全替代 | PCM1794ADBR和PCM1794ADBG4的区别 |