現在提供此產品的更新版本
功能相同,但針腳輸出與所比較的裝置不同。
PCM1865-Q1
- AEC-Q100 Qualified for Automotive Applications
- Temperature Grade 1: –40°C ≤ TA ≤ +125°C
- HBM ESD Classification Level 2
- CDM ESD Classification Level C5
- High SNR Performance:
- 110-dB SNR (PCM1861-Q1/63-Q1/65-Q1)
- 103-dB SNR (PCM1860-Q1/62-Q1/64-Q1)
- ADC Sample Rate (fS) = 8 kHz to 192 kHz
- Up To Four Independent ADC Channels Available
- Single-Ended, 2.1-VRMS Full-Scale (FS) Input
- Differential, 4.2-VRMS FS Input
- Hardware (HW) Control: PCM1860-Q1/61-Q1
- Software
(SW) Control (I2C or SPI):
PCM1862-Q1/63-Q1/64-Q1/65-Q1 - Support for Up To
Four Digital Microphones
(SW-Controlled Devices) - Programmable Gain Amplifier
(PGA):
- Fixed Gain: 0 dB, 12 dB, 32 dB
(PCM1860-Q1/61-Q1) - SW-Controlled Gain: –12 dB
to +32 dB
(PCM1862-Q1/63-Q1/64-Q1/65-Q1)
- Fixed Gain: 0 dB, 12 dB, 32 dB
- Integrated High-Performance Audio PLL
- Single 3.3-V Power-Supply Operation
- Power Dissipation at 3.3 V:
- < 85 mW (PCM1860-Q1/61-Q1/62-Q1/63-Q1)
- < 145 mW (PCM1864-Q1/65-Q1)
- Energysense Audio Content Detector for Auto System Wakeup and Sleep
- Master or Slave Audio Interface
- Automatic PGA Clipping Suppression Control
- PCB-Footprint Compatibility Across All Devices
The PCM186x-Q1 family (PCM1860-Q1, PCM1861-Q1, PCM1862-Q1, PCM1863-Q1, PCM1864-Q1, and PCM1865-Q1) of audio front-end devices take a new approach to audio-function integration to ease compliance with European Ecodesign legislation, while enabling high-performance end products at reduced cost. The PCM186x-Q1 support single-supply operation at 3.3 V, and offer an integrated programable gain amplifier (PGA) in a small package; this configuration makes it feasible to implement smaller and smarter products at a reduced cost.
The PCM186x-Q1 audio front end supports single-ended input levels from small-mV microphone inputs to 2.1-VRMS line inputs, without external resistor dividers. The front-end mixer (MIX), multiplexer (MUX), and PGA also support differential (Diff), pseudo-differential, and single-ended (SE) inputs, making these devices an ideal interface for products that require interference suppression. The PCM186x-Q1 integrate many system-level functions that assist or replace some DSP functions.
An integrated band-gap voltage reference provides excellent PSRR, so that a dedicated analog 3.3-V rail may not be required.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | PCM186x-Q1 Automotive, 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. A) | PDF | HTML | 2017/6/21 | ||
| 應用說明 | Sitara Linux ALSA DSP Microphone Array Voice Recognition | 2017/6/30 | ||||
| 技術文章 | How do automotive cabin sound-enhancement systems work? | PDF | HTML | 2016/9/28 | |||
| 應用說明 | Optimizing Signal Chain Noise on PCM186x Devices | 2015/2/5 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
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PCM1865EVM (EVM) 是一款方便好用的電路板,可完整評估四通道 PCM1865 ADC。隨附的 USB-12X 電路板可將 EVM 連接至 PC,並提供 5V 電源。EVM 由 PurePathTM Console 控制,能夠載入、執行及儲存指令碼。
SLAC663 — PCM186x Mixer Coefficient Calculation
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (DBT) | 30 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。