PCM1850A 具有 6x2 通道 MUX 和 PGA 的 101dB SNR 立体声 ADC
|
PCM1850A |
PCM1851A |
| SNR(Typ)(dB) |
101 |
101 |
| # ADCs |
2 |
2 |
| # Inputs / # Outputs |
6 x 2 / 2 |
6 x 2 / 2 |
| Sampling Rate(Max)(kHz) |
96 |
96 |
| Resolution(Bits) |
24 |
24 |
| Digital Audio Interface |
L, R, I2S |
L, R, I2S |
| Control Interface |
SPI |
I2C |
| Analog Supply(V) |
4.5 - 5.5 |
4.5 - 5.5 |
| Digital Supply (up to 5 V)(V) |
2.7 - 3.6 |
2.7 - 3.6 |
| Pd(Typ)(mW) |
160 |
160 |
| Additional Features |
MUX, PGA |
MUX, PGA |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
32TQFP |
32TQFP |
PCM1850A 描述
The PCM1850A/1851A is a high–performance, low–cost, single–chip stereo analog–to–digital converter with a single–ended analog front end that consists of a 6–stereo–input multiplexer and wide–range PGA. The PCM1850A/1851A includes a delta–sigma modulator with 64–times oversampling, a digital decimation filter and a low–cut filter that removes the dc component of the input signal. For various applications, the PCM1850A/1851A supports two modes (master and slave) and four data formats through a serial control interface, SPI for the PCM1850A and I2C for the PCM1851A. The PCM1850A/1851A is suitable for a wide variety of cost–sensitive DVD/CD/MD recorder and receiver applications where good performance and operation from a 5–V analog supply and 3.
PCM1850A 特性
- Multiplexer and Programmable–Gain Amplifier (PGA)
- 6×2–Channel Single–Ended Inputs
- Multiplexed Output
- Maximum Input Level: 2.4 V rms
- Input Resistance: 50 kOhm, Minimum
- PGA Gain: 11–dB to –11–dB Range, 0.5 dB/Step
- 24–Bit Delta–Sigma Stereo A/D Converter
- Antialiasing Filter Included
- Oversampling Decimation Filter
- Oversampling Frequency: —64
- Pass–Band Ripple: ±0.05 dB
- Stop–Band Attenuation: –65 dB
- On–Chip High–Pass Filter: 0.91 Hz (48 kHz)
- High Performance
- THD+N: 0.0023% (Typically)
- SNR: 101 dB (Typically)
- Dynamic Range: 102 dB (Typically)
- PCM Audio Interface
- Master/Slave Mode Selectable
- Data Formats: 24–Bit Left–Justified, 24–Bit I2S, 16–, 24–Bit Right–Justified
PCM1850A 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 |
| PCM1850APJT |
ACTIVE |
-40 to 85 |
5.65 | 1ku |
TQFP (PJT) | 32 |
250 | JEDEC TRAY (10+1) |
PCM1850A |
| PCM1850APJTG4 |
ACTIVE |
-40 to 85 |
5.65 | 1ku |
TQFP (PJT) | 32 |
250 | JEDEC TRAY (10+1) |
PCM1850A |
| PCM1850APJTR |
ACTIVE |
-40 to 85 |
5.15 | 1ku |
TQFP (PJT) | 32 |
1000 | LARGE T&R |
PCM1850A |
| PCM1850APJTRG4 |
ACTIVE |
-40 to 85 |
5.15 | 1ku |
TQFP (PJT) | 32 |
1000 | LARGE T&R |
PCM1850A |
PCM1850A 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 |
| PCM1850APJT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1850APJT |
| PCM1850APJTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1850APJTG4 |
PCM1850APJTG4 |
| PCM1850APJTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
PCM1850APJTR |
| PCM1850APJTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
PCM1850APJTRG4 |
PCM1850APJTRG4 |
PCM1850A 应用技术支持与电子电路设计开发资源下载
- PCM1850A 数据资料 dataSheet 下载.PDF
- TI 德州仪器音频模数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)
PCM1850A 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 针对 Code Composer Studio 的 DCPFREETOOL 软件插件 |
DCPFREETOOL |
Texas Instruments |
实用程序/插件 |
| MDACBufferPro Design Utility for Multiplying Digital to Analog Converter Design |
MDACBUFFERPRO |
Texas Instruments |
应用软件 |