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Automotive 110dB 4-Channel Software-Controlled Audio ADC With Universal Front End

Availability: 5,756


Package | PIN: TSSOP (DBT) | 30
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $10.12
10-24 $9.11
25-99 $8.51
100-249 $7.63
250-499 $7.12
500-749 $6.19
750-999 $5.36
1,000+ $5.25


  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤+125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C5
  • High SNR Performance:
    • 110-dB SNR (PCM1861-Q1/63-Q1/65-Q1)
    • 103-dB SNR(PCM1860-Q1/62-Q1/64-Q1)
  • ADC Sample Rate (fS) = 8 kHz to 192 kHz
  • Up To Four Independent ADC Channels Available
  • Single-Ended, 2.1-VRMS Full-Scale (FS) Input
  • Differential, 4.2-VRMS FS Input
  • Hardware (HW) Control: PCM1860-Q1/61-Q1
  • Software (SW) Control (I2C or SPI):
  • Support for Up To Four Digital Microphones
    (SW-Controlled Devices)
  • Programmable Gain Amplifier (PGA):
    • Fixed Gain: 0 dB, 12 dB, 32 dB
    • SW-Controlled Gain: –12 dBto +32 dB
  • Integrated High-Performance Audio PLL
  • Single 3.3-V Power-Supply Operation
  • Power Dissipation at 3.3 V:
    • < 85 mW (PCM1860-Q1/61-Q1/62-Q1/63-Q1)
    • < 145 mW (PCM1864-Q1/65-Q1)
  • Energysense Audio Content Detector for Auto System Wakeup and Sleep
  • Master or Slave Audio Interface
  • Automatic PGA Clipping Suppression Control
  • PCB-Footprint Compatibility Across All Devices

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Texas Instruments  PCM1865QDBTRQ1

The PCM186x-Q1 family (PCM1860-Q1, PCM1861-Q1, PCM1862-Q1, PCM1863-Q1, PCM1864-Q1, andPCM1865-Q1) of audio front-end devices take a new approach to audio-function integration to easecompliance with European Ecodesign legislation, while enabling high-performance end products atreduced cost. The PCM186x-Q1 support single-supply operation at 3.3 V, and offer an integratedprogramable gain amplifier (PGA) in a small package; this configuration makes it feasible toimplement smaller and smarter products at a reduced cost.

The PCM186x-Q1 audio front end supports single-ended input levels from small-mVmicrophone inputs to 2.1-VRMS line inputs, without external resistordividers. The front-end mixer (MIX), multiplexer (MUX), and PGA also support differential (Diff),pseudo-differential, and single-ended (SE) inputs, making these devices an ideal interface forproducts that require interference suppression. The PCM186x-Q1 integrate many system-levelfunctions that assist or replace some DSP functions.

An integrated band-gap voltage reference provides excellent PSRR, so that a dedicatedanalog 3.3-V rail may not be required.