首页 > TI 德州仪器 > 音频转换器

PCM1740 具有可编程 PLL&VCXO 的 105dB SNR 立体声 DAC

PCM1740
SNR(Typ)(dB) 94
# DACs 2
# Inputs / # Outputs 0 / 2
Sampling Rate(Max)(kHz) 96
Resolution(Bits) 24
Digital Audio Interface R,I2S
Control Interface I2C
Analog Supply(V) 4.5 - 5.5
Digital Supply (up to 5 V)(V) 4.5 - 5.5
Pd(Typ)(mW) 125
Additional Features VCXO, PLL
Pin/Package 24SSOP
PCM1740 描述

The PCM1740 is a complete stereo audio digital-to-analog converter with on-chip PLL and VCXO. The PCM1740 is designed specifically for set-top box applications requiring high-quality audio playback, a precision tuned 27MHz master clock source, and support for multiple audio-sampling frequencies.

The stereo digital-to-analog converter (DAC) uses multibit, delta-sigma architecture, which includes an 8x interpolation filter, 3rd-order noise shaping, 5-level amplitude quantization, and an analog low-pass filter. The PCM1740 includes a number of user-programmable functions, which are accessed via a standard I2C-Bus interface.

PCM1740 特性
PCM1740 芯片订购指南
器件 状态 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
PCM1740E ACTIVE 3.45 | 1ku SSOP (DB) | 24 58 | TUBE PCM1740E
PCM1740E-2/2K OBSOLETE SSOP (DB) | 24 PCM1740E
PCM1740E-2/2KG4 OBSOLETE SSOP (DB) | 24 PCM1740E
PCM1740E/2K ACTIVE 3.15 | 1ku SSOP (DB) | 24 2000 | LARGE T&R PCM1740E
PCM1740E/2KG4 ACTIVE 3.15 | 1ku SSOP (DB) | 24 2000 | LARGE T&R PCM1740E
PCM1740EG4 ACTIVE 3.45 | 1ku SSOP (DB) | 24 58 | TUBE PCM1740E
PCM1740 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
PCM1740E Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   PCM1740E
PCM1740E/2K Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   PCM1740E/2K
PCM1740E/2KG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM1740E/2KG4 PCM1740E/2KG4
PCM1740EG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM PCM1740EG4 PCM1740EG4
PCM1740 应用技术支持与电子电路设计开发资源下载
  1. PCM1740 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器音频数模转换器产品选型与价格参考 . xls
  3. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  4. 所选封装材料的热学和电学性质 (PDF 645 KB)
  5. 高速数据转换 (PDF 1967 KB)
  6. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  7. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  8. Principles of Data Acquisition and Conversion (PDF 50 KB)
  9. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  10. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  11. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  12. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
PCM1740 工具与软件
名称 型号 公司 工具/软件类型
音频的快速搜索选择工具 AUDIO_SELECTION_TOOL Texas Instruments 免费评估工具
PCM1740 评估模块 DEM-PCM1740 Texas Instruments 开发电路板/EVM
PurePathTM Studio 图形开发环境(便携式音频) AICPUREPATH_STUDIO Texas Instruments 编译器/汇编器/连接器
用于数字双二阶滤波器的系数计算器 COEFFICIENT-CALC Texas Instruments 计算实用程序
用于音频转换器的软件驱动程序 CODECDRIVERS-SW Texas Instruments 应用软件