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
- COMPLETE DELTA-SIGMA STEREO DAC
- VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR:
- 27MHz ±150ppm Output with 0V to 3V Input
- PROGRAMMABLE PLL
- 256fS or 384fS Audio System Clock Output
- DYNAMIC PERFORMANCE:
- Dynamic Range: 94dB
- SNR: 94dB
- THD+N: 89dB
- SAMPLING FREQUENCIES:
- 16kHz, 22.05kHz, 24kHz
- 32kHz, 44.1kHz, 48kHz
- 64kHz, 88.2kHz, 96kHz
- SERIAL AUDIO INTERFACE:
- Standard or I2STM Data Formats
- 16-, 20-, or 24-Bit Data
- I2C-BUSTM INTERFACE FOR CONTROL REGISTERS:
- Slave Receiver Operation
- 7-Bit Addressing
- Standard Transfer Rate (up to 100kbps)
PCM1740 芯片订购指南
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
- PCM1740 数据资料 dataSheet 下载.PDF
- TI 德州仪器音频数模转换器产品选型与价格参考 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
PCM1740 工具与软件