component
TAA3040IRTWR
Public Made by Adomby adom
Texas Instruments , WQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TAA3040IRTWR
Texas Instruments · IC · WQFN-24(4x4)
TAA3040IRTWR from Texas Instruments, in a WQFN-24(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | AVDD | power_in | Analog power supply, 1.8V or 3.3V nominal. |
| 2 | AREG | power_out | Analog on-chip regulator output (1.8V nominal) for the analog supply, or external 1.8V analog power input. |
| 3 | VREF | power_in | Analog reference voltage filter output; requires a minimum 1-µF capacitor to AVSS. |
| 4 | AVSS | power_in | Analog ground; short directly to the board ground plane. |
| 5 | MICBIAS | power_out | Microphone bias output. |
| 6 | IN1P_GPI1 | input | Analog input 1P or general-purpose digital input 1 (digital microphone data, PLL input clock source, etc.). |
| 7 | IN1M_GPO1 | bidirectional | Analog input 1M or general-purpose digital output 1 (digital microphone clock, interrupt, etc.). |
| 8 | IN2P_GPI2 | input | Analog input 2P or general-purpose digital input 2 (digital microphone data, PLL input clock source, etc.). |
| 9 | IN2M_GPO2 | bidirectional | Analog input 2M or general-purpose digital output 2 (digital microphone clock, interrupt, etc.). |
| 10 | IN3P_GPI3 | input | Analog input 3P or general-purpose digital input 3 (digital microphone data, PLL input clock source, etc.). |
| 11 | IN3M_GPO3 | bidirectional | Analog input 3M or general-purpose digital output 3 (digital microphone clock, interrupt, etc.). |
| 12 | IN4P_GPI4 | input | Analog input 4P or general-purpose digital input 4 (digital microphone data, PLL input clock source, etc.). |
| 13 | IN4M_GPO4 | bidirectional | Analog input 4M or general-purpose digital output 4 (digital microphone clock, interrupt, etc.). |
| 14 | SHDNZ | input | Device hardware shutdown and reset, active low. |
| 15 | ADDR1_MISO | bidirectional | I2C target address A1 pin in I2C operation; SPI target output pin in SPI operation. |
| 16 | ADDR0_SCLK | input | I2C target address A0 pin in I2C operation; SPI serial bit clock in SPI operation. |
| 17 | SCL_MOSI | input | I2C control bus clock pin in I2C operation; SPI target input pin in SPI operation. |
| 18 | SDA_SSZ | bidirectional | I2C control bus data pin in I2C operation; SPI target-select pin in SPI operation. |
| 19 | IOVDD | power_in | Digital I/O power supply, 1.8V or 3.3V nominal. |
| 20 | GPIO1 | bidirectional | General-purpose digital input/output 1 (digital microphone clock or data, PLL input clock source, interrupt, etc.). |
| 21 | SDOUT | output | Audio serial data interface bus output. |
| 22 | BCLK | bidirectional | Audio serial data interface bus bit clock. |
| 23 | FSYNC | bidirectional | Audio serial data interface bus frame synchronization signal. |
| 24 | DREG | power_out | Digital regulator output for the digital core supply, 1.5V nominal. |
| 25 | Thermal Pad (VSS) | power_in | Thermal pad shorted to internal device ground; short directly to the board ground plane. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-24(4x4) |
| Category | |
| Pins | 25 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| AVDD supply voltage (3.3-V operation) | AVDD | 3 | 3.3 | 3.6 | V | AVDD to AVSS, AREG generated by on-chip regulator | 5 |
| AVDD and AREG supply voltage (1.8-V operation) | AVDD, AREG | 1.7 | 1.8 | 1.9 | V | AREG internal regulator shutdown | 5 |
| IOVDD supply voltage (3.3-V operation) | IOVDD | 3 | 3.3 | 3.6 | V | IOVDD 3.3-V operation | 5 |
| IOVDD supply voltage (1.8-V operation) | IOVDD | 1.65 | 1.8 | 1.95 | V | IOVDD 1.8-V operation | 5 |
| Operating ambient temperature | TA | -40 | 105 | °C | 5 | ||
| MCLK input clock frequency | 36.864 | MHz | GPIOx or GPIx used as MCLK input | 5 | |||
| I2C bus capacitance (standard/fast mode) | Cb | 400 | pF | SCL and SDA, standard-mode and fast-mode | 5 | ||
| I2C bus capacitance (fast-mode plus) | Cb | 550 | pF | SCL and SDA, fast-mode plus | 5 | ||
| Digital output load capacitance | CL | 20 | 50 | pF | 5 | ||
| AVDD to AVSS | AVDD | -0.3 | 3.9 | V | 5 | ||
| AREG to AVSS | AREG | -0.3 | 2 | V | 5 | ||
| IOVDD to VSS | IOVDD | -0.3 | 3.9 | V | 5 | ||
| Ground voltage difference AVSS to VSS | -0.3 | 0.3 | V | 5 | |||
| Junction temperature | TJ | -40 | 150 | °C | 5 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 5 | ||
| ESD HBM | V(ESD) | -2000 | 2000 | V | HBM per ANSI/ESDA/JEDEC JS-001 | 5 | |
| ESD CDM | V(ESD) | -500 | 500 | V | CDM per JESD22-C101 | 5 | |
| Junction-to-ambient thermal resistance | RθJA | 32.6 | °C/W | RTW (WQFN) 24 pins | 6 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 25 | °C/W | 6 | |||
| Junction-to-board thermal resistance | RθJB | 11.9 | °C/W | 6 | |||
| Junction-to-case (bottom) thermal resistance | RθJC(bot) | 2.9 | °C/W | 6 | |||
| Signal-to-noise ratio, A-weighted (AVDD 3.3 V) | SNR | 100 | 104 | dB | IN1 differential, AC signal shorted to ground, 10-kΩ input impedance, 0-dB channel gain | 6 | |
| Total harmonic distortion plus noise (AVDD 3.3 V) | THD+N | -95 | -80 | dB | IN1 differential, -1-dB full-scale AC input, 10-kΩ input impedance, 0-dB channel gain | 6 | |
| MICBIAS load regulation | 0 | 0.6 | 1.8 | % | MICBIAS programmed to VREF or VREF × 1.096, measured up to max load | 7 | |
| MICBIAS current drive (≥2.5 V) | 20 | mA | MICBIAS voltage ≥ 2.5 V | 7 | |||
| MICBIAS current drive (<2.5 V) | 10 | mA | MICBIAS voltage < 2.5 V | 7 | |||
| Low-level input voltage SHDNZ | VIL(SHDNZ) | -0.3 | 0.25 | V | SHDNZ pin, max is 0.25 × IOVDD | 7 | |
| High-level input voltage SHDNZ | VIH(SHDNZ) | 0.75 | 0.3 | V | SHDNZ pin, min is 0.75 × IOVDD, max is IOVDD + 0.3 | 7 | |
| Low-level input voltage, 3.3-V IOVDD | VIL | -0.3 | 0.8 | V | All digital pins except INxP_GPIx, SDA and SCL, IOVDD 3.3-V operation | 7 | |
| High-level input voltage, 3.3-V IOVDD | VIH | 2 | V | All digital pins except INxP_GPIx, SDA and SCL, IOVDD 3.3-V operation; max IOVDD + 0.3 | 7 | ||
| Low-level output voltage, 3.3-V IOVDD | VOL | 0.4 | V | All digital pins except INxM_GPOx, SDA and SCL, IOL = -2 mA, IOVDD 3.3-V operation | 8 | ||
| Low-level output voltage, 1.8-V IOVDD | VOL | 0.45 | V | All digital pins except INxM_GPOx, SDA and SCL, IOL = -2 mA, IOVDD 1.8-V operation | 8 | ||
| High-level output voltage, 3.3-V IOVDD | VOH | 2.4 | V | All digital pins except INxM_GPOx, SDA and SCL, IOH = 2 mA, IOVDD 3.3-V operation | 8 | ||
| Input logic-high leakage | IIH | -5 | 0.1 | 5 | µA | All digital pins except INxP_GPIx pins, input = IOVDD | 8 |
| Input logic-low leakage | IIL | -5 | 0.1 | 5 | µA | All digital pins except INxP_GPIx pins, input = 0 V | 8 |
| I2C low-level output voltage (IOVDD > 2 V) | VOL1(I2C) | 0.4 | V | SDA, IOL(I2C) = -3 mA, IOVDD > 2 V | 8 | ||
| Hardware shutdown current AVDD 3.3 V | IAVDD | 0.5 | µA | SHDNZ = 0, AVDD = 3.3 V, internal AREG | 8 | ||
| Sleep mode current AVDD 3.3 V | IAVDD | 5 | µA | All external clocks stopped, AVDD = 3.3 V, internal AREG | 8 | ||
| 4-channel 48-kHz AVDD current, 3.3 V | IAVDD | 21.3 | mA | ADC 4-channel at fS 48 kHz, PLL on, BCLK = 256 × fS, AVDD = 3.3 V, internal AREG | 9 | ||
| 4-channel 48-kHz AVDD current, 1.8 V | IAVDD | 20.2 | mA | ADC 4-channel at fS 48 kHz, PLL on, BCLK = 256 × fS, AVDD = 1.8 V, external AREG | 9 |
CAD (KiCad official)
- Symbol:
TAA3040IRTWR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm - 3D model: WQFN-24(4x4) (KiCad packages3D, STEP)
- 3D model files:
taa3040irtwr-etched.step/taa3040irtwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);taa3040irtwr.step/taa3040irtwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (130 pp, sha256
e8892e7ba319b56b, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# TAA3040IRTWR
**Texas Instruments** · IC · WQFN-24(4x4)
TAA3040IRTWR from Texas Instruments, in a WQFN-24(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | AVDD | power_in | Analog power supply, 1.8V or 3.3V nominal. |
| 2 | AREG | power_out | Analog on-chip regulator output (1.8V nominal) for the analog supply, or external 1.8V analog power input. |
| 3 | VREF | power_in | Analog reference voltage filter output; requires a minimum 1-µF capacitor to AVSS. |
| 4 | AVSS | power_in | Analog ground; short directly to the board ground plane. |
| 5 | MICBIAS | power_out | Microphone bias output. |
| 6 | IN1P_GPI1 | input | Analog input 1P or general-purpose digital input 1 (digital microphone data, PLL input clock source, etc.). |
| 7 | IN1M_GPO1 | bidirectional | Analog input 1M or general-purpose digital output 1 (digital microphone clock, interrupt, etc.). |
| 8 | IN2P_GPI2 | input | Analog input 2P or general-purpose digital input 2 (digital microphone data, PLL input clock source, etc.). |
| 9 | IN2M_GPO2 | bidirectional | Analog input 2M or general-purpose digital output 2 (digital microphone clock, interrupt, etc.). |
| 10 | IN3P_GPI3 | input | Analog input 3P or general-purpose digital input 3 (digital microphone data, PLL input clock source, etc.). |
| 11 | IN3M_GPO3 | bidirectional | Analog input 3M or general-purpose digital output 3 (digital microphone clock, interrupt, etc.). |
| 12 | IN4P_GPI4 | input | Analog input 4P or general-purpose digital input 4 (digital microphone data, PLL input clock source, etc.). |
| 13 | IN4M_GPO4 | bidirectional | Analog input 4M or general-purpose digital output 4 (digital microphone clock, interrupt, etc.). |
| 14 | SHDNZ | input | Device hardware shutdown and reset, active low. |
| 15 | ADDR1_MISO | bidirectional | I2C target address A1 pin in I2C operation; SPI target output pin in SPI operation. |
| 16 | ADDR0_SCLK | input | I2C target address A0 pin in I2C operation; SPI serial bit clock in SPI operation. |
| 17 | SCL_MOSI | input | I2C control bus clock pin in I2C operation; SPI target input pin in SPI operation. |
| 18 | SDA_SSZ | bidirectional | I2C control bus data pin in I2C operation; SPI target-select pin in SPI operation. |
| 19 | IOVDD | power_in | Digital I/O power supply, 1.8V or 3.3V nominal. |
| 20 | GPIO1 | bidirectional | General-purpose digital input/output 1 (digital microphone clock or data, PLL input clock source, interrupt, etc.). |
| 21 | SDOUT | output | Audio serial data interface bus output. |
| 22 | BCLK | bidirectional | Audio serial data interface bus bit clock. |
| 23 | FSYNC | bidirectional | Audio serial data interface bus frame synchronization signal. |
| 24 | DREG | power_out | Digital regulator output for the digital core supply, 1.5V nominal. |
| 25 | Thermal Pad (VSS) | power_in | Thermal pad shorted to internal device ground; short directly to the board ground plane. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-24(4x4) |
| Category | |
| Pins | 25 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| AVDD supply voltage (3.3-V operation) | AVDD | 3 | 3.3 | 3.6 | V | AVDD to AVSS, AREG generated by on-chip regulator | 5 |
| AVDD and AREG supply voltage (1.8-V operation) | AVDD, AREG | 1.7 | 1.8 | 1.9 | V | AREG internal regulator shutdown | 5 |
| IOVDD supply voltage (3.3-V operation) | IOVDD | 3 | 3.3 | 3.6 | V | IOVDD 3.3-V operation | 5 |
| IOVDD supply voltage (1.8-V operation) | IOVDD | 1.65 | 1.8 | 1.95 | V | IOVDD 1.8-V operation | 5 |
| Operating ambient temperature | TA | -40 | | 105 | °C | | 5 |
| MCLK input clock frequency | | | | 36.864 | MHz | GPIOx or GPIx used as MCLK input | 5 |
| I2C bus capacitance (standard/fast mode) | Cb | | | 400 | pF | SCL and SDA, standard-mode and fast-mode | 5 |
| I2C bus capacitance (fast-mode plus) | Cb | | | 550 | pF | SCL and SDA, fast-mode plus | 5 |
| Digital output load capacitance | CL | 20 | | 50 | pF | | 5 |
| AVDD to AVSS | AVDD | -0.3 | | 3.9 | V | | 5 |
| AREG to AVSS | AREG | -0.3 | | 2 | V | | 5 |
| IOVDD to VSS | IOVDD | -0.3 | | 3.9 | V | | 5 |
| Ground voltage difference AVSS to VSS | | -0.3 | | 0.3 | V | | 5 |
| Junction temperature | TJ | -40 | | 150 | °C | | 5 |
| Storage temperature | Tstg | -65 | | 150 | °C | | 5 |
| ESD HBM | V(ESD) | -2000 | | 2000 | V | HBM per ANSI/ESDA/JEDEC JS-001 | 5 |
| ESD CDM | V(ESD) | -500 | | 500 | V | CDM per JESD22-C101 | 5 |
| Junction-to-ambient thermal resistance | RθJA | | 32.6 | | °C/W | RTW (WQFN) 24 pins | 6 |
| Junction-to-case (top) thermal resistance | RθJC(top) | | 25 | | °C/W | | 6 |
| Junction-to-board thermal resistance | RθJB | | 11.9 | | °C/W | | 6 |
| Junction-to-case (bottom) thermal resistance | RθJC(bot) | | 2.9 | | °C/W | | 6 |
| Signal-to-noise ratio, A-weighted (AVDD 3.3 V) | SNR | 100 | 104 | | dB | IN1 differential, AC signal shorted to ground, 10-kΩ input impedance, 0-dB channel gain | 6 |
| Total harmonic distortion plus noise (AVDD 3.3 V) | THD+N | | -95 | -80 | dB | IN1 differential, -1-dB full-scale AC input, 10-kΩ input impedance, 0-dB channel gain | 6 |
| MICBIAS load regulation | | 0 | 0.6 | 1.8 | % | MICBIAS programmed to VREF or VREF × 1.096, measured up to max load | 7 |
| MICBIAS current drive (≥2.5 V) | | | | 20 | mA | MICBIAS voltage ≥ 2.5 V | 7 |
| MICBIAS current drive (<2.5 V) | | | | 10 | mA | MICBIAS voltage < 2.5 V | 7 |
| Low-level input voltage SHDNZ | VIL(SHDNZ) | -0.3 | | 0.25 | V | SHDNZ pin, max is 0.25 × IOVDD | 7 |
| High-level input voltage SHDNZ | VIH(SHDNZ) | 0.75 | | 0.3 | V | SHDNZ pin, min is 0.75 × IOVDD, max is IOVDD + 0.3 | 7 |
| Low-level input voltage, 3.3-V IOVDD | VIL | -0.3 | | 0.8 | V | All digital pins except INxP_GPIx, SDA and SCL, IOVDD 3.3-V operation | 7 |
| High-level input voltage, 3.3-V IOVDD | VIH | 2 | | | V | All digital pins except INxP_GPIx, SDA and SCL, IOVDD 3.3-V operation; max IOVDD + 0.3 | 7 |
| Low-level output voltage, 3.3-V IOVDD | VOL | | | 0.4 | V | All digital pins except INxM_GPOx, SDA and SCL, IOL = -2 mA, IOVDD 3.3-V operation | 8 |
| Low-level output voltage, 1.8-V IOVDD | VOL | | | 0.45 | V | All digital pins except INxM_GPOx, SDA and SCL, IOL = -2 mA, IOVDD 1.8-V operation | 8 |
| High-level output voltage, 3.3-V IOVDD | VOH | 2.4 | | | V | All digital pins except INxM_GPOx, SDA and SCL, IOH = 2 mA, IOVDD 3.3-V operation | 8 |
| Input logic-high leakage | IIH | -5 | 0.1 | 5 | µA | All digital pins except INxP_GPIx pins, input = IOVDD | 8 |
| Input logic-low leakage | IIL | -5 | 0.1 | 5 | µA | All digital pins except INxP_GPIx pins, input = 0 V | 8 |
| I2C low-level output voltage (IOVDD > 2 V) | VOL1(I2C) | | | 0.4 | V | SDA, IOL(I2C) = -3 mA, IOVDD > 2 V | 8 |
| Hardware shutdown current AVDD 3.3 V | IAVDD | | 0.5 | | µA | SHDNZ = 0, AVDD = 3.3 V, internal AREG | 8 |
| Sleep mode current AVDD 3.3 V | IAVDD | | 5 | | µA | All external clocks stopped, AVDD = 3.3 V, internal AREG | 8 |
| 4-channel 48-kHz AVDD current, 3.3 V | IAVDD | | 21.3 | | mA | ADC 4-channel at fS 48 kHz, PLL on, BCLK = 256 × fS, AVDD = 3.3 V, internal AREG | 9 |
| 4-channel 48-kHz AVDD current, 1.8 V | IAVDD | | 20.2 | | mA | ADC 4-channel at fS 48 kHz, PLL on, BCLK = 256 × fS, AVDD = 1.8 V, external AREG | 9 |
## CAD (KiCad official)
- Symbol: `TAA3040IRTWR`
- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm`
- 3D model: WQFN-24(4x4) (KiCad packages3D, STEP)
- 3D model files: `taa3040irtwr-etched.step` / `taa3040irtwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `taa3040irtwr.step` / `taa3040irtwr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/taa3040.pdf) (130 pp, sha256 `e8892e7ba319b56b`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/taa3040irtwr-datasheet.pdf)