PCM1770
- Multilevel DAC Including Headphone Amplifier
- Analog Performance (VCC, VHP = 2.4 V):
- Dynamic Range: 98 dB Typ
- THD+N at 0 dB: 0.1% Typ
- THD+N at -20 dB: 0.04% Typ
- Output Power at RL = 16
: 13 mW
(Stereo), 26 mW (Monaural)
- 1.6-V to 3.6-V Single Power Supply
- Low Power Dissipation: 6.5 mW at VCC, VHP = 2.4 V
- System Clock: 128 fS, 192 fS, 256 fS, 384 fS
- Sampling Frequency: 5 kHz to 50 kHz
- Software Control (PCM1770):
- 16-, 20-, 24-Bit Word Available
- Left-, Right-Justified, and I2S
- Slave/Master Selectable
- Digital Attenuation: 0 dB to -62 dB, 1 dB/Step
- 44.1-kHz Digital De-Emphasis
- Zero Cross Attenuation
- Digital Soft Mute
- Monaural Analog-In With Mixing
- Monaural Speaker Mode
- Hardware Control (PCM1771):
- Left-Justified and I2S
- 44.1-kHz Digital De-Emphasis
- Monaural Analog-In With Mixing
- Pop-Noise-Free Circuit
- 3.3-V Tolerant
- Packages: TSSOP-16 and VQFN-20
- APPLICATIONS
- Portable Audio Player
- Cellular Phone
- PDA
- Other Applications Requiring Low-Voltage Operation
The PCM1770 and PCM1771 devices are CMOS, monolithic, integrated circuits which include stereo digital-to-analog converters, headphone circuitry, and support circuitry in small TSSOP-16 and VQFN-20 packages.
The data converters use TI's enhanced multilevel 
architecture, which employs noise shaping and multilevel amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1770 and PCM1771 devices accept several industry standard audio data formats with 16- to 24-bit data, left-justified, I2S, etc., providing easy interfacing to audio DSP and decoder devices. Sampling rates up to 50 kHz are supported. A full set of user-programmable functions is accessible through a 3-wire serial control port, which supports register write functions.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Low-Voltage and Low-Power Stereo Audio DAC w/Headphone Amp 数据表 (Rev. E) | 2007-3-29 | |||
| 应用手册 | A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters | 2000-9-27 | ||||
| 应用手册 | THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 | 2000-9-27 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
SLAC224 — PCM1770EVM - Graphical User Interface (GUI) Software (v1.0)
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
| VQFNP (RGA) | 20 | Ultra Librarian |