PCM1774 具有 HP 放大器的 93dB SNR 低功耗立体声 DAC(软件控制)

PCM1774 描述

The PCM1774 is a low-power stereo DAC designed for portable digital audio applications. The device integrates headphone amplifier, line amplifier, line input, boost amplifier, programmable gain control, analog mixing, and sound effects. It is available in a small-footprint, 4-mm × 4-mm QFN package. The PCM1774 supports right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port.

PCM1770 PCM1771 PCM1772 PCM1773 PCM1774
SNR(Typ)(dB) 98   98   98   98   93  
# DACs 2   2   2   2   2  
# Inputs / # Outputs 0 / 2   0 / 2   0 / 2   0 / 2   0 / 2  
Sampling Rate(Max)(kHz) 48   48   48   48   50  
Resolution(Bits) 24   24   24   24   16  
Digital Audio Interface L,R,I2S   L,I2S   L,R,I2S   L,I2S   L,R,I2S,DSP  
Control Interface SPI   H/W   SPI   H/W   SPI, I2C  
Analog Supply(V) 1.6 - 3.6   1.6 - 3.6   1.6 - 3.6   1.6 - 3.6   2.4 - 3.6  
Digital Supply (up to 5 V)(V) 1.6 - 3.6   1.6 - 3.6   1.6 - 3.6   1.6 - 3.6   1.71 - 3.6  
Pd(Typ)(mW) 6.5   6.5   6.5   6.5   7  
Additional Features HP Out   HP Out       Headphone, Mix  
Operating Temperature Range(°C) 0 to 70   0 to 70   0 to 70   0 to 70   -40 to 85  
Pin/Package 16TSSOP, 20VQFN   16TSSOP, 20VQFN   16TSSOP, 20VQFN   16TSSOP, 20VQFN   20QFN
PCM1774 特性
PCM1774 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
PCM1774RGPR ACTIVE -40 to 85 1.50 | 1ku VQFN (RGA) | 20 3000 | LARGE T&R 1774
PCM1774RGPRG4 ACTIVE -40 to 85 1.50 | 1ku VQFN (RGA) | 20 3000 | LARGE T&R 1774
PCM1774RGPT ACTIVE -40 to 85 1.65 | 1ku VQFN (RGA) | 20 250 | SMALL T&R 1774
PCM1774RGPTG4 ACTIVE -40 to 85 1.65 | 1ku VQFN (RGA) | 20 250 | SMALL T&R 1774
PCM1774 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
PCM1774RGPR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR   PCM1774RGPR
PCM1774RGPRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR PCM1774RGPRG4 PCM1774RGPRG4
PCM1774RGPT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR   PCM1774RGPT
PCM1774RGPTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR PCM1774RGPTG4 PCM1774RGPTG4
PCM1774 应用技术支持与电子电路设计开发资源下载
  1. PCM1774 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)
PCM1774 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
DEM-DAI1774 评估模块 DEM-DAI1774 Texas Instruments 开发电路板/EVM
PurePath™ 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