DRV604
- DirectPath™
- Eliminates Pop/Clicks
- Eliminate Output DC-Blocking Capacitors
- 3.0V to 3.7V Supply Voltage
- Low Noise and THD
- SNR > 109dB
- Typical Vn < 7µVrms 20–20kHz
- THD+N < 0.002% at 10k
- Output Voltage into 5k Load
- 2Vrms at 3.3V Supply Voltage
- Stereo DirectPath™ Headphone:
- 40mW into 32 at 3.3V Supply Voltage
- 16 to ∞ Stable Load Range
- 40mW into 32
- Differential Input
- Power Sense UVP for Brown Out Protection
- Short Circuit and Thermal Protection
- ±8kV IEC ESD Protection
- Footprint Compatible with DRV602 and DRV603
- Supports Dual Line Driver Configuration
- APPLICATIONS
- LCD and PDP TV
- Blu-ray Disc™, DVD Players
- Mini/Micro Combo Systems
- Soundcards
DirectPath, FilterPro are trademarks of Texas Instruments.
Blu-ray Disc is a trademark of Blu-ray Disc Association.
The DRV604 is a 2Vrms Pop-Free stereo line driver with stereo headphone output designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The device is ideal for single supply electronics where size and cost are critical design parameters.
Designed using TI’s patented DirectPath™ technology, The DRV604 is capable of driving 2 Vrms into a 5k load. The headphone output can generate a clean 40mW into 32 load from a 3.3V supply. The device has differential inputs and uses external gain setting resistors that supports a gain range of –1V/V to –10V/V. Headphone and line outputs have ±8kV IEC ESD protection enabling a simple ESD protection circuit. The DRV604 has built-in enable control for pop-free on/off control. DRV604 can monitor an external supply voltage using its built in comparator enabling it to shut down during a brown out condition before up stream audio DAC’s can produce click and pop artifacts.
Using the DRV604 in audio products can reduce component count considerably compared to traditional methods of generating headphone output and 2Vrms output. The DRV604 does not require a power supply greater than 3.3V to generate its 5.6Vpp output, nor does it require a split rail power supply. The DRV604 integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free ground biased 2Vrms output.
The DRV604 is available in a 28-pin HTSSOP. For a stereo line driver with no HP amp see DRV603.
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 | DirectPath 2Vrms Line Driver and HP Amp with Adjustable Gain 数据表 (Rev. A) | 2010-4-16 | |||
| 应用手册 | DAC Post-Filter Design Based on DRV6xx Family (Rev. A) | 2010-11-23 |
设计与开发
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DRV604PWPEVM — DRV604PWP 评估模块
DRV604PWPEVM 客户评估模块用于演示了德州仪器 (TI) 的 DRV604PWP 集成电路 (IC)。
DRV604PWP 是一款 2Vrms 无爆音立体声线路驱动器，集成耳机驱动功能，可省略输出隔直电容以精简元件与成本。该器件特别适用于对尺寸和成本有严苛要求的单电源电子设备。
DRV604 采用 TI 专利 DirectPath™ 技术，单 3.3V 供电即可驱动 5kΩ 负载达 2Vrms，并为 32Ω 耳机提供 40mW 纯净音频。该器件具备差分输入架构，使用外部电阻，支持 ±1V/V 至 ±10V/V 增益，线路/耳机输出均配备 ±8kV IEC ESD (...)
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
订购和质量
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