DSD1791 113dB SNR 立体声音频 DAC（硬件控制）
|
DSD1791 |
| SNR(Typ)(dB) |
113 |
| # DACs |
2 |
| # Inputs / # Outputs |
0 / 2 |
| Sampling Rate(Max)(kHz) |
192 |
| Resolution(Bits) |
24 |
| Digital Audio Interface |
L,R,I2S,TDMCA,DSD |
| Control Interface |
SPI |
| Analog Supply(V) |
4.5 - 5.5 |
| Digital Supply (up to 5 V)(V) |
3 - 3.6 |
| Pd(Typ)(mW) |
90 |
| Additional Features |
TDMCA/DSD Support |
| Operating Temperature Range(°C) |
-25 to 85 |
| Pin/Package |
28SSOP |
DSD1791 描述
The DSD1791 is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The DSD1791 provides balanced voltage outputs, allowing the user to optimize analog performance externally. The DSD1791 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1791 also accepts interface to external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through a three-wire serial control port.
DSD1791 特性
- Supports both DSD and PCM Formats
- 24-Bit Resolution
- Analog Performance:
- Dynamic Range: 113 dB
- THD+N: 0.001%
- Full-Scale Output: 2.1 V RMS (at Postamp)
- Differential Voltage Output: 3.2 Vp-p
- 8× Oversampling Digital Filter:
- Stop-Band Attenuation: –82 dB
- Pass-Band Ripple: ±0.002 dB
- Sampling Frequency: 10 kHz to 200 kHz
- System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
- Accepts 16-, 20-, and 24-Bit PCM Audio Data
- PCM Data Formats: Standard, I2S, and Left-Justified
- DSD Format Interface Available
- Optional Interface to External Digital Filter or DSP Available
- TDMCA Interface Available
- User-Programmable Mode Controls:
- Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
- Digital De-Emphasis
DSD1791 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 |
| DSD1791DB |
ACTIVE |
-25 to 85 |
2.50 | 1ku |
SSOP (DB) | 28 |
47 | TUBE |
DSD1791 |
| DSD1791DBG4 |
ACTIVE |
-25 to 85 |
2.50 | 1ku |
SSOP (DB) | 28 |
47 | TUBE |
DSD1791E |
| DSD1791DBR |
ACTIVE |
|
2.25 | 1ku |
SSOP (DB) | 28 |
2000 | LARGE T&R |
DSD1791E |
| DSD1791DBRG4 |
ACTIVE |
|
2.25 | 1ku |
SSOP (DB) | 28 |
2000 | LARGE T&R |
DSD1791E |
DSD1791 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 |
| DSD1791DB |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
DSD1791DB |
| DSD1791DBG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
DSD1791DBG4 |
DSD1791DBG4 |
| DSD1791DBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
DSD1791DBR |
| DSD1791DBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
DSD1791DBRG4 |
DSD1791DBRG4 |
DSD1791 应用技术支持与电子电路设计开发资源下载
- DSD1791 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)
DSD1791 工具与软件
