SPH0641LM4H-1 Digital Microphone: Circuit, Pinout, and Datasheet

Sophie

Published: 23 February 2022 | Last Updated: 23 February 2022

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SPH0641LM4H-1

SPH0641LM4H-1

Knowles

MIC MEMS DIGITAL

Purchase Guide

MIC MEMS DIGITAL

The SPH0641LM4H-1 is a bottom-port silicon digital microphone with a single-bit PDM output that is small, high-performance, and low-power. This article mainly introduces circuit, pinout, datasheet and other detailed information about Knowles SPH0641LM4H-1.

This video will show you the MEMS Microphone.

[Eng Sub] MEMS Microphone - Smartphone, Wireless Earbuds, A.I. Speaker

SPH0641LM4H-1 Description

The SPH0641LM4H-1 is a bottom-port silicon digital microphone with a single-bit PDM output that is small, high-performance, and low-power. The SPH0641LM4H-1 is made up of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator that uses Knowles' proven high-performance SiSonicTM MEMS technology. These devices are ideal for cellphones, smartphones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable electronic devices that demand good wideband audio performance and RF immunity. The SPH0641LM4H-1 also has a variety of performance settings.


SPH0641LM4H-1 Pinout

The following figure is SPH0641LM4H-1 Pinout.

pinout.jpg

Pinout


SPH0641LM4H-1 CAD Model

The followings are SPH0641LM4H-1 Symbol, Footprint and 3D Model.

symbol.png

Symbol

footprint.png

Footprint

3d model.jpg

3D Model


SPH0641LM4H-1 Features

• High SNR

• Low Current Consumption in LowPower Mode

• Flat Frequency Response

• High Drive Capability

• RF Shielded

• Bottom Port

• Sensitivity Matching

• Supports Dual Multiplexed Channels

• Multiple Performance Modes (Sleep, Low-Power, Normal)

• Ultra-Stable Performance

• Standard SMD Reflow

• Omnidirectional

• Small Size

• LGA Package


Specifications

Knowles SPH0641LM4H-1 technical specifications, attributes, parameters and parts with similar specifications to Knowles SPH0641LM4H-1.
  • Type
    Parameter
  • Factory Lead Time
    18 Weeks
  • Surface Mount

    having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

    NO
  • Shape

    In electronic components, the parameter "Shape" refers to the physical form or outline of the component. It describes the external appearance of the component, including its dimensions, size, and overall structure. The shape of an electronic component can vary widely depending on its function and design requirements. Common shapes include rectangular, cylindrical, square, and circular, among others. The shape of a component is an important consideration in the design and layout of electronic circuits, as it can impact factors such as space utilization, heat dissipation, and ease of assembly.

    Rectangular
  • Operating Temperature (Max.)
    100°C
  • Operating Temperature (Min.)
    -40°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tape & Reel (TR)
  • Series

    In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.

    SiSonic™ SPH
  • Published
    2013
  • Size / Dimension

    In electronic components, the parameter "Size / Dimension" refers to the physical dimensions of the component, such as its length, width, and height. These dimensions are crucial for determining how the component will fit into a circuit or system, as well as for ensuring compatibility with other components and the overall design requirements. The size of a component can also impact its performance characteristics, thermal properties, and overall functionality within a given application. Engineers and designers must carefully consider the size and dimensions of electronic components to ensure proper integration and functionality within their designs.

    0.138Lx0.104W 3.50mmx2.65mm
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Number of Terminations
    5
  • Termination

    Termination in electronic components refers to the practice of matching the impedance of a circuit to prevent signal reflections and ensure maximum power transfer. It involves the use of resistors or other components at the end of transmission lines or connections. Proper termination is crucial in high-frequency applications to maintain signal integrity and reduce noise.

    Solder Pads
  • Type
    MEMS (Silicon)
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    UNSPECIFIED
  • Terminal Form

    Occurring at or forming the end of a series, succession, or the like; closing; concluding.

    UNSPECIFIED
  • Peak Reflow Temperature (Cel)

    Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.

    260
  • Number of Functions
    1
  • Time@Peak Reflow Temperature-Max (s)

    Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.

    40
  • JESD-30 Code

    JESD-30 Code refers to a standardized descriptive designation system established by JEDEC for semiconductor-device packages. This system provides a systematic method for generating designators that convey essential information about the package's physical characteristics, such as size and shape, which aids in component identification and selection. By using JESD-30 codes, manufacturers and engineers can ensure consistency and clarity in the specification of semiconductor packages across various applications and industries.

    R-XXMA-X5
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    Digital, PDM
  • Supply Voltage-Max (Vsup)

    The parameter "Supply Voltage-Max (Vsup)" in electronic components refers to the maximum voltage that can be safely applied to the component without causing damage. It is an important specification to consider when designing or using electronic circuits to ensure the component operates within its safe operating limits. Exceeding the maximum supply voltage can lead to overheating, component failure, or even permanent damage. It is crucial to adhere to the specified maximum supply voltage to ensure the reliable and safe operation of the electronic component.

    3.6V
  • Temperature Grade

    Temperature grades represent a tire's resistance to heat and its ability to dissipate heat when tested under controlled laboratory test conditions.

    INDUSTRIAL
  • Supply Voltage-Min (Vsup)

    The parameter "Supply Voltage-Min (Vsup)" in electronic components refers to the minimum voltage level required for the component to operate within its specified performance range. This parameter indicates the lowest voltage that can be safely applied to the component without risking damage or malfunction. It is crucial to ensure that the supply voltage provided to the component meets or exceeds this minimum value to ensure proper functionality and reliability. Failure to adhere to the specified minimum supply voltage may result in erratic behavior, reduced performance, or even permanent damage to the component.

    1.62V
  • Operating Supply Current

    Operating Supply Current, also known as supply current or quiescent current, is a crucial parameter in electronic components that indicates the amount of current required for the device to operate under normal conditions. It represents the current drawn by the component from the power supply while it is functioning. This parameter is important for determining the power consumption of the component and is typically specified in datasheets to help designers calculate the overall power requirements of their circuits. Understanding the operating supply current is essential for ensuring proper functionality and efficiency of electronic systems.

    700μA
  • Direction

    In electronic components, the parameter "Direction" refers to the orientation or alignment in which the component is designed to operate effectively. This parameter is particularly important for components such as diodes, transistors, and capacitors, which have specific polarity or orientation requirements for proper functionality. For example, diodes allow current flow in one direction only, so their direction parameter indicates the correct orientation for current flow. Similarly, polarized capacitors have a positive and negative terminal, requiring proper alignment for correct operation. Understanding and adhering to the direction parameter is crucial for ensuring the reliable and efficient performance of electronic components in a circuit.

    Omnidirectional
  • Voltage Range

    The "Voltage Range" parameter in electronic components refers to the range of voltages within which the component is designed to operate effectively and safely. This parameter specifies the minimum and maximum voltage levels that can be applied to the component without causing damage or malfunction. It is important to stay within the specified voltage range to ensure proper performance and longevity of the component. Exceeding the voltage range can lead to overheating, electrical breakdown, or permanent damage to the component. Manufacturers provide this information in the component's datasheet to guide users in proper usage and application.

    1.62V~3.6V
  • Frequency Range

    A continuous range or spectrum of frequencies that extends from one limiting frequency to another.

    100Hz~10kHz
  • Sensitivity

    Sensitivity in electronic components refers to the degree to which the output of a device responds to changes in input. It indicates how effectively a component translates a specific input signal into an observable output. High sensitivity means that even small variations in input can produce significant changes in output, making the device more responsive to signals. Sensitivity is crucial in applications where precise measurements or signal detection are required.

    -26dB ±1dB @ 94dB SPL
  • Port Location

    Port Location in electronic components refers to the physical location on the component where external connections can be made. This parameter is important for determining how the component will be integrated into a circuit or system. The port location can vary depending on the type of component and its intended use, and it is typically specified in the component's datasheet or technical documentation. Understanding the port location is crucial for proper installation and connection of the component within a circuit design.

    Bottom
  • S/N Ratio

    The S/N Ratio, or Signal-to-Noise Ratio, is a measure used to quantify the level of a desired signal relative to the level of background noise in electronic components. It is typically expressed in decibels (dB) and indicates how much a signal stands out from the noise, with higher values representing clearer signals. A good S/N Ratio is essential for ensuring the accuracy and quality of signal transmission in various applications, including audio, communications, and instrumentation.

    64.3dB
  • Height
    1.08mm
  • Length
    3.5mm
  • Width
    2.65mm
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    RoHS Compliant
0 Similar Products Remaining

SPH0641LM4H-1 Typical Application Circuit

The following shows the SPH0641LM4H-1 Typical Application Circuit.

Typical Application Circuit.png

Typical Application Circuit


SPH0641LM4H-1 Applications

• Portable Electronics

• Cellphones

• Laptop Computers

• Tablets

• Digital Still Cameras

• Portable Music Recorders


SPH0641LM4H-1 Package

The following figure is SPH0641LM4H-1 Package.

Package.png

Package


SPH0641LM4H-1 Manufacturer

In mobile communications, consumer electronics, medical technology, and other industrial end markets, Knowles is a market leader and global supplier of sophisticated micro-acoustic, specialty components, and human interface solutions. Knowles' extensive experience and thorough testing ensure that its products, which include speakers and microphones for hearing aids, premium music earphones, communications headsets, and industrial acoustic applications, are continuously trustworthy and precise. Microphones and speakers made by Knowles MEMS (micro-electro-mechanical systems) are widely utilized in smartphones, tablets, notebooks, and other portable devices. All production facilities are  ISO -9001 certified, with some also holding ISO-14001 or OHSAS-18001 certifications. Knowles' Quality Management System assures that its products are designed with integrity, manufactured efficiently, and delivered on schedule at a reasonable cost.


Trend Analysis

Datasheet PDF

Download datasheets and manufacturer documentation for Knowles SPH0641LM4H-1.
Frequently Asked Questions

Are MEMS microphones good?

The relatively low output impedance of analog MEMS microphones and the outputs from digital MEMS microphones are ideal for applications in electrically noisy environments. In high vibration environments, the use of MEMS microphone technology can reduce the level of unwanted noise introduced by mechanical vibration.

What is digital MEMS microphone?

Digital MEMS (MicroElectroMechanical System) microphones are components that are used in various consumer devices as well as in automotive and industrial applications. A digital MEMS microphone combines an acoustic sensor as well as an A to D converter on one silicon chip.

What are MEMS microphones used for?

Nowadays, MEMS microphones are not only used to record plain ambient sound, but they support stereo capabilities, active noise cancellation, directivity (through beamforming), voice recognition and other capabilities. These audio features are implemented by multiplying the number of microphones per device.

What is a bottom-port silicon digital microphone with a single-bit PDM output?

SPH0641LM4H-1.

What is the name of the SiSonicTM MEMS technology used by the SPH0641LM4H-1?

Knowles.

What does the SPH0641LM4H-1 have?

Performance settings.
SPH0641LM4H-1

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