Texas Instruments TAA5242 Stereo Audio ADC
Texas Instruments TAA5242 Stereo Audio Analog-to-Digital Converter (ADC) has 2VRMS differential input and 119dB dynamic range. The TAA5242 supports differential and single-ended line/microphone input signals with AC or DC coupling configuration options. The TAA5242 integrates a low-jitter phase-locked loop (PLL) and a digital high-pass filter (HPF) with pin-selectable cut-offs and supports sample rates up to 192kHz. The Texas Instruments TAA5242 supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats in controller and target modes and is pin or hardware-controlled. These integrated high-performance features, pin control, and a single supply operation make TAA5242 an excellent choice for space-constrained audio applications.
Features
- Stereo high-performance audio ADC
- Performance
- Line/microphone differential input dynamic range: 119dB
- Differential input THD+N: –98dB
- Input voltage
- Differential, 2VRMS full-scale inputs
- Single-ended, 1VRMS full-scale inputs
- Sample rate (fS) = 8kHz to 192kHz
- Performance
- Audio serial interface
- Format of TDM, I2S or Left Justified (LJ)
- Bus controller and target modes
- Daisy chain in TDM Mode
- Word length is selectable from 24 or 32-bit
- Pin or hardware control
- Digital HPF with a selectable cut-off frequency of 1Hz or 12Hz, at a 48kHz sampling rate
- Pin-selectable digital decimation filter options
- Linear-phase
- Low-latency
- Integrated PLL and microphone bias
- Auto clock detection
- Auto sample rate detection
- Interrupt output on clock error
- Single supply operation AVDD of 1.8V or 3.3V
- I/O supply operation of 1.8V or 3.3V
- -40°C ≤ TA ≤ +125°C temperature grade 1
Applications
- Video conference system
- IP network camera
- IP telephone
- Smart speakers
- Professional microphones and wireless systems
Simplifed Block Diagram
Đã phát hành: 2024-12-03
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