- 制造厂商：TI
- 产品类别：音频
- 技术类目：音频转换器 - 音频 ADC
- 功能描述：采用麦克风偏置、ALC、音效和陷波滤波器的 90dB SNR 低功耗立体声音频 ADC
- 点击这里打开及下载PCM1870的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
The PCM1870 is a low-power stereo ADC designed for portable digital audio applications, with line-input amplifier, boost amplifier, microphone bias, programmable gain control, sound effects, and auto level control (ALC). It is available in 24-QFN (4-mm × 5-mm) and 24-DSBGA (2.49-mm × 3.49-mm) packages to save footprint. The PCM1870 accepts right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a 2- or 3-wire serial control port.
- Analog Front End:
- Stereo Single End Input With MUX
- Mono Differential Input
- Stereo Programmable Gain Amplifier
- Microphone Boost Amplifier and Bias
- Analog Performances Dynamic Range: 90 dB
- Power-Supply Voltage
- 1.71 V to 3.6 V for Digital I/O Section
- 1.71 V to 3.6 V for Digital Core Section
- 2.4 V to 3.6 V for Analog Section
- Low Power Dissipation:
- 13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo
- 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono
- 3.3 μW in All Power Down
- Sampling Frequency: 5 kHz to 50 kHz
- Auto Level Control for Recording
- Operation by Single Clock Input Without PLL
- System Clock: Common Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
- 2 (I2C) or 3 (SPI) Wire Serial Control
- Programmable Function by Register Control:
- Digital Soft Mute
- Power Up/Down Control for Each Module
- 30-dB to -12-dB Gain for Analog Inputs
- 0/12/20-dB Boost for Microphone Input
- Parameter Settings for ALC
- Three-Band Tone Control and 3D Sound
- High-Pass Filter and Two-Stage Notch Filter
- Pop Noise Reduction Circuit
- Package:
- 24-QFN (4 mm × 5 mm)
- 24-DSBGA (2.49 mm × 3.49 mm)
- Operation Temperature Range: -40°C to 85°C
- APPLICATIONS
- Portable Audio Player, Cellular Phone
- Video Camcorder, Movie Digital Still Camera
- PMP/DMB, Voice Recorder
- Number of ADC channels
- 2
- Analog inputs
- 2
- Digital audio interface
- DSP, I2S, L, R
- Control interface
- I2C, SPI
- Sampling rate (Max) (kHz)
- 50
- ADC SNR (Typ) (dB)
- 90
- Rating
- Catalog
PCM1870的完整型号有：PCM1870RHFR、PCM1870RHFT，以下是这些产品的关键参数及官网采购报价：
PCM1870RHFR，工作温度：-40 to 85，封装：VQFN (RHF)-24，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网PCM1870RHFR的批量USD价格：2.424（1000+）
PCM1870RHFT，工作温度：-40 to 85，封装：VQFN (RHF)-24，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网PCM1870RHFT的批量USD价格：2.865（1000+）
PCM1870EVM - Graphical User Interface (GUI) Software
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