Automotive 103dB 2-Channel Software-Controlled Audio ADC With Universal Front End - PCM1862-Q1

PCM1862-Q1 (ACTIVE)

Automotive 103dB 2-Channel Software-Controlled Audio ADC With Universal Front End

 

Description

The PCM186x-Q1 family (PCM1860-Q1, PCM1861-Q1, PCM1862-Q1, PCM1863-Q1, PCM1864-Q1, and PCM1865-Q1) of audio front-end devices take a new approach to audio-function integration to ease compliance with European Ecodesign legislation, while enabling high-performance end products at reduced cost. The PCM186x-Q1 support single-supply operation at 3.3 V, and offer an integrated programable gain amplifier (PGA) in a small package; this configuration makes it feasible to implement smaller and smarter products at a reduced cost.

The PCM186x-Q1 audio front end supports single-ended input levels from small-mV microphone inputs to 2.1-VRMS line inputs, without external resistor dividers. 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 for products that require interference suppression. The PCM186x-Q1 integrate many system-level functions that assist or replace some DSP functions.

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

Features

  • 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):
    PCM1862-Q1/63-Q1/64-Q1/65-Q1
  • Support for Up To Four Digital Microphones
    (SW-Controlled Devices)
  • Programmable Gain Amplifier (PGA):
    • Fixed Gain: 0 dB, 12 dB, 32 dB
      (PCM1860-Q1/61-Q1)
    • SW-Controlled Gain: –12 dB to +32 dB
      (PCM1862-Q1/63-Q1/64-Q1/65-Q1)
  • 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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Parametrics Compare all products in Audio ADC

 
ADC Channels
Analog Inputs
ADC SNR (Typ) (dB)
Sampling Rate (Max) (kHz)
Control Interface
Digital Audio Interface
Additional Features
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
Analog Outputs
PCM1862-Q1 PCM1860-Q1 PCM1861-Q1 PCM1863 PCM1863-Q1 PCM1864-Q1 PCM1865-Q1
2    2    2    2    2    4    4   
8    8    8    8    8    8    8   
103    103    110    110    110    103    110   
192    192    192    192    192    192    192   
I2C    H/W    H/W    I2C    I2C    I2C    I2C   
L    I2S
L   		 I2S
L   		 L    L    L    L   
DC control monitoring
Digital Mic Support
Energysense Signal Detection
Low-latency IIR linear-phase FIR filters
Mixer
PLL   		 Analog Mic support
Energysense Signal Detection
PLL   		 Analog Mic support
Energysense Signal Detection
PLL   		 DC control monitoring
Digital Mic Support
Energysense Signal Detection
Low-latency IIR linear-phase FIR filters
Mixer
PLL   		 DC control monitoring
Digital Mic Support
Energysense Signal Detection
Low-latency IIR linear-phase FIR filters
Mixer
PLL   		 PLL    DC control monitoring
Digital Mic Support
Energysense Signal Detection
Low-latency IIR linear-phase FIR filters
Mixer
PLL   
30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)    30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)    30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)    30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)    30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)    30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)    30TSSOP: 50 mm2: 6.4 x 7.8(TSSOP)   
1.88 | 1ku    1.65 | 1ku    2.07 | 1ku    1.99 | 1ku    2.35 | 1ku    4.08 | 1ku    5.25 | 1ku   
0    0    0    0    0    0    0   

Other qualified versions of PCM1862-Q1

Version Part Number Definition
Catalog PCM1862 TI's standard catalog product

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