SigmaDSP Compact Digital Audio Processor with Extended Internal Memory Features: Qualified for automotive applications High performance SigmaDSP core enables low latency and audio applications Active Noise Cancellation (ANC) Echo-Canceller and Noise Reduction (ECNR) Surround sound algorithms Features SigmaStudio, a proprietary graphical Integrated Development Environment (IDE), for the development of custom signal flows Comprehensive Toolbox of pre-defined building blocks Faster design time with proven solutions Intuitive system design 294.912 MHz, 32-bit SigmaDSP core at 1.2 V 24 kWords of program memory 80 kWords of parameter/data RAM 6144 SIMD instructions per sample at 48 kHz 1600 ms digital audio delay pool at 48 kHz Audio I/O and routing 4 serial input ports, 4 serial output ports 48-channel, 32-bit digital I/O up to a sample rate of 192 kHz Flexible configuration of I2S, left and right justified, and up to 16-channel TDM formats on serial data pins 8 stereo ASRCs from 1:8 up to 7.75:1 ratio and 139 dB dynamic range Stereo S/PDIF input and output at 192 kHz Four PDM microphone input channels Multichannel, byte addressable TDM serial ports Clock oscillator for generating master clock from crystal Integer PLL and flexible clock generators Integrated die temperature sensor I2C and SPI control interfaces (both slave and master) Standalone operation Self-boot from serial EEPROM 6-channel, 10-bit SAR auxiliary control ADC 14 multipurpose pins for digital controls and outputs On-chip regulator for generating 1.2 V from 1.8 V to 3.3 V supply 72-lead, 10 mm × 10 mm LFCSP package with 5.3 mm exposed pad Temperature range: −40°C to +105°C

Three ADCs, One DAC, Low Power Codec with Audio DSPs Features: Programmable FastDSP audio processing engine Up to 768 kHz sample rate Biquad filters, limiters, volume controls, mixing Tensilica HiFi 3z DSP core Quad MAC per cycle: 24 x 24-bit multiplier and 64-bit accumulator Flexible power operation mode: 24.576 MHz, 49.152 MHz, 73.728 MHz, and 98.304 MHz 336 kB total memory JTAG debug and trace Low latency, 24-bit ADCs and DAC 106 dB SNR (signal through ADC with A-weighted filter) 110 dB combined SNR (signal through DAC and headphone with A-weighted filter) Programmable double precision MAC engine for maximum 24-stage equalizer Serial port sample rates from 8 kHz to 768 kHz 5 μs group delay (fS = 768 kHz) analog in to analog out with FastDSP bypass (zero instructions) 3 differential or single-ended analog inputs, configurable as microphone or line inputs 8 digital microphone inputs Analog differential audio output, configurable as either line output or headphone drive 2 PDM output channels PLL supporting any input clock rate from 30 kHz to 36 MHz 4 channel asynchronous sample rate converters (ASRCs) 2, 16-channel serial audio ports supporting I2S, left justified, right justified, or up to TDM16 (TDM12 in Turbo mode) 8 interpolators and 8 decimators with flexible routing Power supplies Analog AVDD at 1.8 V typical Digital I/O IOVDD at 1.1 V to 1.98 V Digital DVDD at 0.85 V to 1.21 V Headphone HPVDD at 1.8 V typical Headphone HPVDD_L at 1.2 V to HPVDD Control/communication interfaces I2C, SPI, or UART control ports Master quad SPI (QSPI) UART communication port Self-boot from QSPI flash Flexible GPIO and IRQ 56-ball, 0.35 mm pitch, 2.980 mm × 2.679 mm WLCSP

8 Channel, PDM to I2S/TDM Converter Features: 8 channels of PDM audio inputs from digital microphones 16×, 32×, or 64× decimation ratio of PDM to PCM audio data 24-bit resolution to support high sound pressure level (SPL) microphones 126 dB A-weighted SNR 4 kHz to 192 kHz output sampling rate Bit clock rates of 64×, 128×, 192×, 256×, 384×, or 512× the output sampling rate Dual output PDM clocks Automatic PDM clock generation Automatic power-down when BCLK removed Selectable I2C control or hardware mode operation 1.2 mA DVDD operating current for 8 channels at 48 kHz frequency sampling rate and 1.8 V supply Slave I2S or TDM output interface Up to TDM-16 supported Configurable TDM slot routing and sizes I/O supply voltage from 1.70 V to 3.63 V DVDD supply voltage from 1.10 V to 1.98 V <5 μA typical DVDD shutdown current 16-lead, 3 mm × 3 mm, 0.50 mm pitch LFCSP Power-on reset

18-Cell Battery Monitor with Daisy Chain Interface Features: Measures up to 18 battery cells in series 3 mV maximum total measurement error Stackable architecture for high voltage systems Built-in isoSPI interface 1 Mb isolated serial communications Uses a single twisted pair, up to 100 meters Low EMI susceptibility and emissions Bidirectional for broken wire protection 290 μs to measure all cells in a system Synchronized voltage and current measurement 16-bit Δ-Σ ADC with programmable third-order noise filter Passive cell balancing up to 200 mA (maximum) with programmable pulsewidth modulation 9 general purpose digital I/O or analog inputs Temperature or other sensor inputs Configurable as an I2C or SPI master 6 μA sleep mode supply current 64-lead LQFP_EP package

Ultrafast SiGe Voltage Comparator (Featuring Reduced Swing PECL Output Drivers) Features: 180 ps propagation delay 25 ps overdrive and slew rate dispersion 8 GHz equivalent input rise time bandwidth 100 ps minimum pulse width 37 ps typical output rise/fall 10 ps deterministic jitter (DJ) 200 fs random jitter (RJ) −2 V to +3 V input range with +5 V/−5 V supplies On-chip terminations at both input pins Resistor-programmable hysteresis Differential latch control Power supply rejection > 70 dB

High Performance Polyphase Energy Measurement IC Features: 7 high performance analog-to-digital converters (ADCs) 101 dB signal-to-noise ratio (SNR) 10,000:1 dynamic range Wide input range: ±1 V, 0.707 V rms full scale Differential inputs ±25 ppm/°C maximum channel temperature drift (including ADC, internal VREF, and PGA drift) enabling Class 0.2 meters with standard external components Power quality measurements Line frequency: 1 measurement per phase Zero crossing detection, zero-crossing timeout Phase angle measurements Supports current transformers (CTs) and Rogowski coil (di/dt) sensors Multiple range phase/gain compensation for CTs Digital integrator for Rogowski coils Flexible waveform buffer Able to resample waveform to ensure 64 points per line cycle for ease of external harmonic analysis Events can trigger waveform storage Simplifies data collection for IEC 61000-4-7 harmonic analysis Advanced metrology feature set Total active power, volt-amperes reactive (VAR), volt-amperes (VA), watthour, VAR-hour, and VA-hour Fundamental VAR and VAR-hour Current and voltage rms per phase (xIRMS, xVRMS) Supports active energy standards: IEC 62053-21, IEC 62053-22; EN50470-3; OIML R46, ANSI C12.20 Supports reactive energy standards: IEC 62053-23, IEC 62053-4 High speed communication port 10 MHz serial peripheral interface (SPI)

Multichannel ISM Band FSK/GFSK/OOK/GOOK/ASK Transmitter Features: Single-chip, low power UHF transmitter 75 MHz to 1 GHz frequency operation Multichannel operation using fractional-N PLL 2.3 V to 3.6 V operation On-board regulator Programmable output power −16 dBm to +14 dBm, 0.4 dB steps Data rates: dc to 179.2 kbps Low current consumption 868 MHz, 10 dBm, 21 mA 433 MHz, 10 dBm, 17 mA 315 MHz, 0 dBm, 10 mA Programmable low battery voltage indicator 24-lead TSSOP

I2C CMOS 8 10 Unbuffered Analog Switch Array with Dual/Single Supplies Features: I2C-compatible Interface 3.4 MHz High Speed I2C Option 32-lead LFCSP_VQ (5 mm × 5 mm) Double-buffered Input Logic Simultaneous Update of Multiple Switches Up to 300 MHz Bandwidth Fully Specified at Dual ±5 V/single +12 V Operation On Resistance 35 Ω Maximum Low Quiescent Current < 20 μA

User Defined Fault Protection and Detection, 0.8 pC QINJ, 8:1 Multiplexer Features: User defined secondary supplies set overvoltage level Overvoltage protection up to −55 V and +55 V Power-off protection up to −55 V and +55 V Overvoltage detection on source pins Minimum secondary supply level: 4.5 V single-supply Interrupt flags indicate fault status Low charge injection (QINJ): 0.8 pC Low drain/source on capacitance: 19 pF Latch-up immune under any circumstance Known state without digital inputs present VSS to VDD analog signal range ±5 V to ±22 V dual-supply operation 8V to 44 V single-supply operation Fully specified at ±15 V, ±20 V, +12 V, and +36 V 

0.4 CMOS, Dual DPDT Switch in WLCSP/LFCSP/TSSOP Features: 1.8 V to 5.5 V operation Ultralow on resistance 0.4 Ω typical 0.6 Ω maximum at 5 V supply Excellent audio performance, ultralow distortion 0.07 Ω typical 0.14 Ω maximum RON flatness High current carrying capability 400 mA continuous 600 mA peak current at 5 V Automotive temperature range: −40°C to +125°C Rail-to-rail switching operation Typical power consumption (<0.1 μW)