PCM4204
- Four High-Performance Delta-Sigma Analog-to-Digital Converters
- 24-Bit Linear PCM or 1-Bit Direct Stream Digital (DSD) Output Data
- Supports PCM Output Sampling Rates up to 216kHz
- Supports 64fS and 128fS DSD Output Data Rates
- Dynamic Performance: PCM Output
- Dynamic Range: 118dB
- THD+N: –105dB
- Dynamic Performance: DSD Output
- Dynamic Range: 115dB
- THD+N: –103dB
- Audio Serial Port
- 24-Bit Linear PCM Output Data
- Master or Slave Mode Operation
- Supports Left-Justified, Right-Justified, and I2S Data Formats
- DSD Data Port
- Supports DSD Output or Input for All Four Channels Simultaneously
- Input Mode Provides 1-Bit DSD to 24-Bit PCM Data Format Conversion
- Additional PCM Output Features
- Linear-Phase Digital Decimation Filter
- Digital High-Pass Filter for DC Removal
- Clipping Flag Output for Each Channel
- Power Supplies: +5V Analog and +3.3V Digital
- Power Dissipation:
- fS = 48kHz: 600mW typical
- fS = 96kHz: 640mW typical
- fS = 192kHz: 615mW typical
- Power-Down Mode
- Available in a Thermally-Enhanced HTQFP-64 Package
- APPLICATIONS
- Digital Recorders and Mixing Desks
- Digital Audio Effects Processors
- Broadcast Studio Equipment
- Surround Sound Encoders
- High-End A/V Receivers
PowerPAD is a registered trademark of Texas Instruments.
All trademarks are the property of their respective owners.
The PCM4204 is a high-performance, four-channel analog-to-digital (A/D) converter designed for professional and broadcast audio applications. The PCM4204 architecture utilizes a 1-bit delta-sigma modulator per channel incorporating a novel density modulated dither scheme for improved dynamic performance.
The PCM4204 supports 24-bit linear PCM output data, with sampling frequencies up to 216kHz. The PCM4204 can also be configured to output either 64x or 128x oversampled, 1-bit direct stream digital (DSD) data for each channel. In addition, the PCM4204 supports a DSD input mode, allowing 1-bit DSD to 24-bit PCM data format conversion utilizing the on-chip digital decimation filter. These features make the PCM4204 suitable for a variety of digital audio recording and processing applications.
The PCM4204 includes a flexible audio serial port interface, which supports standard PCM audio data formats, as well as time division multiplexed (TDM) PCM data formats. Multiple format support allows the system designer to choose the interface format that best suits the end application. Audio data format selection, sampling mode configuration, and high-pass filter functions are all programmed using dedicated control pins.
The PCM4204 operates from a +5V analog power supply and a +3.3V digital power supply. The digital I/O pins are compatible with +3.3V logic families. The PCM4204 is available in a thermally-enhanced HTQFP-64 PowerPAD™ package.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | PCM4204: High Performance 24-Bit, 216kHz Sampling Four-Chan Audio A/D Converter datasheet (Rev. A) | 2004年 9月 23日 | |
| White paper | Designing professional audio mixers for every scenario | 2018年 6月 28日 |
設計與開發
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PCM4204EVM — PCM4204 評估模組 (EVM)
PCM4204EVM 是一個方便好用的平台，適用於評估 PCM4204 裝置的性能和功能。此 EVM 上有兩個 PCM4204，一個用於輸入和輸出訊號，另一個則可支援轉換測試模式和展示模式。使用低雜訊輸入電路來緩衝和篩選輸入音訊訊號；該電路採用德州儀器 OPA1632 運算放大器。PCM4204 裝置和 AES3 發射器均可手動重設。也就是說，ADC 重設開關和 DIT 重設開關可分別用來重設 AES3 發射器。系統可以接受外部振盪器，或使用板載晶體振盪器做為時脈來源。板載晶體提供低抖動時脈，以測量兩個 PCM4204 裝置的性能。類比和數位電源供應電壓可透過板載端子連接至電路板。
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTQFP (PAP) | 64 | Ultra Librarian |
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