Products > Integrated Circuits (ICs) > Audio ICs > PCM1862DBTR
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103dB 2-Channel Software-Controlled Audio ADC With Universal Front End

Manufacturer :
Texas Instruments, Inc
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Product Categories :
ADCs_DACs - Special Purpose
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PCM1862DBTR Product Details


 The PCM186x family of audio front-end devices 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 PCM186x's highly flexible audio front end supports input levels from small-mV microphone inputs to 2.1 VaMs line Inputs without external resistor dividers. The PCM186x family 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.

Block diagrams comparing the devices in the PCM186x can be found in Functional Block Diagram.

· Universal Analog Mic Input,2.1 VRMs Full Scale
-8Analog Input Pins With MUX and PGA
-Analog Pre-Mix Function Before PGA/MUX
-Single-Ended, Pseudo-Differential or Differential Inputs With Mic Bias
-4xDigital Microphone Inputs
· Up to 4 Mono ADC Channels(PCM1864)
· Hardware Control(PCM1860)
· IPC or SPI Control(PCM1862/4)
·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:<85 mW (PCM1860/2),<145mW(PCM1864)
· 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

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

PCM1862DBTR Pin Diagram
(Picture:Pinout / Diagram)

Technical Parameters

Type ADC, Audio Voltage Supply 3V ~ 3.6V
Number of Channels 2 Operating Temperature -40??C ~ 125??C
Resolution (Bits) 24 b Mounting Type Surface Mount
Sampling Rate (Per Second) 192k Package / Case 30-TFSOP (0.173, 4.40mm Width)
Data Interface I2C, SPI Supplier Device Package 30-TSSOP
Voltage Supply Source Analog and Digital

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Texas Instruments Incorporated designs and manufactures analog technologies, digital signal processing (DSP) and microcontroller (MCU) semiconductors. TI is a leader in semiconductor solutions for ana...
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