PCM1780 106dB SNR 立体声 DAC（软件控制）
|
PCM1780 |
| SNR(Typ)(dB) |
106 |
| # DACs |
2 |
| # Inputs / # Outputs |
0 / 2 |
| Sampling Rate(Max)(kHz) |
192 |
| Resolution(Bits) |
24 |
| Digital Audio Interface |
L,R,I2S |
| Control Interface |
SPI |
| Analog Supply(V) |
4.5 - 5.5 |
| Digital Supply (up to 5 V)(V) |
4.5 - 5.5 |
| Pd(Typ)(mW) |
80 |
| Operating Temperature Range(°C) |
-20 to 85 |
| Pin/Package |
16SSOP/QSOP |
PCM1780 描述
The PCM1780/81/82 is a CMOS, monolithic, integrated circuit, which includes stereo digital-to-analog converters and support circuitry in a small 16-lead SSOP package. The data converters use TI’s enhanced multilevel delta-sigma architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1780/81/82 accepts industry standard audio data formats with 16- to 24-bit data, providing easy interfacing to audio DSP and decoder chips. Sampling rates up to 200 kHz are supported. The PCM1780/82 provides a full set of user-programmable functions through a three-wire serial control port, which supports register write functions. The PCM1781 provides a subset of user-programmable functions through four control pins.
PCM1780 特性
- 24-Bit Resolution
- Analog Performance (VCC = 5 V):
- Dynamic Range: 106 dB
- SNR: 106 dB, Typical
- THD+N: 0.002%, Typical
- Full-Scale Output: 3.9 Vp-p, Typical
- 4×/8× Oversampling Digital Filter:
- Stop-Band Attenuation: -50 dB
- Pass-Band Ripple: ±0.04 dB
- Sampling Frequency: 5 kHz to 200 kHz
- System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, 1152 fS With Autodetect
- Software Control (PCM1780, PCM1782):
- Accepts 16-, 18-, 20-, and 24-Bit Audio Data
- Formats: Right-Justified, I2S, and Left-Justified
- Digital Attenuation: Mode Selectable
- 0 dB to -63 dB, 0.5 dB/step
- 0 dB to -100 dB, 1 dB/step
- Digital De-Emphasis
- Digital Filter Rolloff: Sharp or Slow
- Soft Mute
PCM1780 芯片订购指南
PCM1780 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 |
| PCM1780DBQ |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1780DBQ |
| PCM1780DBQG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1780DBQG4 |
PCM1780DBQG4 |
| PCM1780DBQR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1780DBQR |
| PCM1780DBQRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1780DBQRG4 |
PCM1780DBQRG4 |
PCM1780 应用技术支持与电子电路设计开发资源下载
- PCM1780 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)
PCM1780 工具与软件
