PCM1865-Q1 - 具有通用前端的汽车类软件控制、110dB 四通道音频 ADC

PCM1865-Q1是TI德州仪器公司的一款音频ADC产品，PCM1865-Q1是具有通用前端的汽车类软件控制、110dB 四通道音频 ADC，本站介绍了PCM1865-Q1的封装应用图解、特点和优点、功能等，并给出了与PCM1865-Q1相关的TI元器件型号供参考。

PCM1865-Q1 - 具有通用前端的汽车类软件控制、110dB 四通道音频 ADC - 音频ADC - 音频转换器 - 德州仪器

产品特性

Universal Analog Mic Input, 2.1 VRMS Full Scale
- 8 Analog Input Pins With MUX and PGA
- Analog Pre-Mix Function Before PGA/MUX
- Single-Ended, Pseudo-Differential or Differential Inputs With Mic Bias
- 4x Digital Microphone Inputs
Up to 4 Mono ADC Channels (PCM1865-Q1)
I2C or SPI Control (PCM1865-Q1)
H/W Programmable Gain Amplifier
- Fixed Mic Pregain Select: 20, 32 dB (Analog)
S/W Programmable Gain Amplifier
Integrated High Performance Audio PLL
Single 3.3 V Supply for Analog and Digital
- Additional 1.8 V Core and Interface for Lower Power Consumption
Power Dissipation at 3.3 V: <145 mW
'Energysense' Audio Content Detector - for Auto System Wakeup and Sleep
Master or Slave Audio Interface
Mixer Functionality:
- Digital Mixer to Mix ADC Outputs and I2S Synchronous Inputs
- Zero Crossing PGA Gain Changes
Automatic PGA Clipping Suppression Control
PCB-Footprint Compatibility Across All Devices
Qualified in Accordance With AEC-Q100 for Automotive Applications

产品应用

Home Theater and TV
Automotive Head Units
Bluetooth® Speaker
Microphone Array Processors

产品说明

The PCM1865-Q1 audio front-end device takes a new approach to audio-function integration to ease compliance with European Ecodesign legislation while enabling high-performance end products. With no need for a 5-V supply or an external programmable-gain amplifier, smaller, smarter products are feasible at reduced cost.

The PCM1865-Q1's highly flexible audio front end supports input levels from small-mV microphone inputs to 2.1 VRMS line Inputs without external resistor dividers. The PCM1865-Q1 integrates many system-level functions that assist or replace some DSP functions.

All these features are available using a single 3.3-V power supply. An integrated bandgap voltage reference provides excellent PSRR, so that a dedicated analog 3.3-V rail may not be required.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
PCM1865-Q1	TSSOP (30)	7.80 mm × 4.40 mm

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