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MP34DB02TR
+BOMMIC MEMS DIGITAL PDM OMNI -26DB
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ManufacturerSTMicroelectronics
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Mfr. Part #MP34DB02TR
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In Stock22555
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Specifications
| Attribute | Value |
| Part Status | Obsolete |
| Base Product Number | MP34 |
| Type | MEMS (Silicon) |
| Output Type | Digital, PDM |
| Direction | Omnidirectional |
| Frequency Range | 20 Hz ~ 20 kHz |
| Sensitivity | -26dB ±3dB @ 94dB SPL |
| S / N Ratio | 62.6dB |
| Voltage - Rated | 1.8 V |
| Supply Current | 650 µA |
| Port Location | Bottom |
| Termination | Solder Pads |
| Size / Dimension | 0.157" L x 0.118" W (4.00mm x 3.00mm) |
| Height (Max) | 0.043" (1.10mm) |
| Shape | Rectangular |
| Packaging | Tape & Reel (TR) |
| Voltage Range | 1.64 V ~ 3.6 V |
Overview
Description
MP34DB02TR is a digital MEMS microphone (MP34 family) with a bottom-port design. It provides a digital audio output (PDM/PCM path) and is intended for compact voice capture in mobile, wearable, and IoT devices. The TR suffix indicates tape-and-reel packaging.
Key points:
- Digital output: PDM stream requiring a clock and host-side decimation/filtering to PCM.
- Small, low-profile package suitable for compact boards.
- Supply and interface conform to typical MEMS mic ranges; exact voltages and timing are in the datasheet.
- Used for voice input in smartphones, laptops, wearables, conferencing devices, and smart assistants.
For precise electrical specs, pinout, clock requirements, and performance (SNR, sensitivity, power), refer to the official MP34DB02TR datasheet.
Key points:
- Digital output: PDM stream requiring a clock and host-side decimation/filtering to PCM.
- Small, low-profile package suitable for compact boards.
- Supply and interface conform to typical MEMS mic ranges; exact voltages and timing are in the datasheet.
- Used for voice input in smartphones, laptops, wearables, conferencing devices, and smart assistants.
For precise electrical specs, pinout, clock requirements, and performance (SNR, sensitivity, power), refer to the official MP34DB02TR datasheet.
Equivalent
MP34DB02TR is a digital MEMS microphone with PDM output. Equivalents from other vendors include:
- InvenSense ICS-43434
- Knowles SPH0645LM4H-B
- STMicroelectronics MP45DT02
- STMicroelectronics MP34DT05
These offer similar PDM digital MEMS mic functionality; verify packaging (TR) and electrical specs for exact compatibility.
- InvenSense ICS-43434
- Knowles SPH0645LM4H-B
- STMicroelectronics MP45DT02
- STMicroelectronics MP34DT05
These offer similar PDM digital MEMS mic functionality; verify packaging (TR) and electrical specs for exact compatibility.
Features
MP34DB02TR features (highlights):
- Bottom-port MEMS microphone
- Digital PDM output (Dout) with external clock (CLK) input
- Omnidirectional audio pickup
- Low-noise, high-SNR performance for clear voice
- Wide dynamic range suitable for speech and general audio
- Low power consumption during operation
- Small package size with Tape & Reel (TR) packaging for automated assembly
- Wide supply voltage range (typical 1.65–3.6 V)
- Compact form factor suitable for compact consumer devices
Note: For exact electrical specs (SNR, sensitivity, frequency response, current, clock) and recommended operating conditions, please refer to the official datasheet.
- Bottom-port MEMS microphone
- Digital PDM output (Dout) with external clock (CLK) input
- Omnidirectional audio pickup
- Low-noise, high-SNR performance for clear voice
- Wide dynamic range suitable for speech and general audio
- Low power consumption during operation
- Small package size with Tape & Reel (TR) packaging for automated assembly
- Wide supply voltage range (typical 1.65–3.6 V)
- Compact form factor suitable for compact consumer devices
Note: For exact electrical specs (SNR, sensitivity, frequency response, current, clock) and recommended operating conditions, please refer to the official datasheet.
Pinout
MP34DB02TR is a 6-pin bottom-port digital MEMS microphone. Pin functions (typical):
- VDD: power supply
- GND: ground
- CLK: PDM clock input
- DOUT: PDM data output
- L/R: left/right channel select
- PDN: power-down control
(Contracted for tape-and-reel packaging variant MP34DB02TR.)
- VDD: power supply
- GND: ground
- CLK: PDM clock input
- DOUT: PDM data output
- L/R: left/right channel select
- PDN: power-down control
(Contracted for tape-and-reel packaging variant MP34DB02TR.)
Manufacturer
- Manufacturer: STMicroelectronics (ST).
- What kind of company: A multinational semiconductor and electronics company that designs and manufactures MEMS sensors, ICs, and related devices (headquartered near Geneva, Switzerland; French-Italian origin).
- What kind of company: A multinational semiconductor and electronics company that designs and manufactures MEMS sensors, ICs, and related devices (headquartered near Geneva, Switzerland; French-Italian origin).
Package
Bottom-port MEMS microphone in an LGA (leadless) package; the TR suffix indicates Tape & Reel packaging.
