6PADC3140IRTWRG4-Texas Instruments-Price, Stock & Datasheet

The TLV320ADC3140 is a Burr-Brown™ high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels or eight digital channels for the pulse density modulation (PDM) microphone input. The device supports line and microphone inputs, and allows for both single-ended and differential input configurations. The device integrates programable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for sample rates up to 768 kHz. The device supports time-division multiplexing (TDM), I²S, or left-justified (LJ) audio formats, and can be controlled with either the I²C or SPI interface. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The TLV320ADC3140 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.

Multichannel high-performance ADC:
- 4-channel analog microphones or line-in,
- 8-channel digital PDM microphones, or
- Combination of analog and digital microphones
ADC line and microphone differential input performance:
- Dynamic range (DR): 106 dB
- THD+N: –98 dB
ADC channel summing mode, DR performance:
- 109-dB, 2-channel summing
- 112-dB, 4-channel summing
ADC input voltage:
- Differential, 2-V_RMS full-scale inputs
- Single-ended, 1-V_RMS full-scale inputs
ADC sample rate (f_S) = 8 kHz to 768 kHz
Programmable channel settings:
- Channel gain: 0 dB to 42 dB, 1-dB steps
- Digital volume control: –100 dB to 27 dB
- Gain calibration with 0.1-dB resolution
- Phase calibration with 163-ns resolution
Programmable microphone bias or supply voltage generation
Low-latency signal processing filter selection
Programmable HPF and biquad digital filters
Automatic gain controller (AGC)
I²C or SPI controls
Integrated high-performance audio PLL
Automatic clock divider setting configurations
Audio serial data interface:
- Format: TDM, I²S, or left-justified (LJ)
- Word length: 16 bits, 20 bits, 24 bits, or 32 bits
- Master or slave interface
Single-supply operation: 3.3 V or 1.8 V
I/O-supply operation: 3.3 V or 1.8 V
Power consumption for 1.8-V AVDD supply:
- 8.5 mW/channel at 16-kHz sample rate
- 9.2 mW/channel at 48-kHz sample rate