multimode digital bottom port sisonic™ microphone sheets/knowles... · multimode digital bottom...

SPH0641LM4H-1 MORELLO

MULTIMODE DIGITAL BOTTOM PORT SISONIC™ MICROPHONE

knowles.com | DATASHEET SPH0641LM4H-1 Rev D © 2018, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved.

SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC.

The SPH0641LM4H-1 is a miniature, high-performance, low power, bottom port silicon digital microphone with a single bit PDM output. Using Knowles’ proven high performance SiSonic™ MEMS technology, the SPH0641LM4H-1 consists of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator. These devices are suitable for applications such as cellphones, smart phones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable electronic devices where excellent wideband audio performance and RF immunity are required. In addition, the SPH0641LM4H-1 offers multiple performance modes.

ABSOLUTE MAXIMUM RATINGS

Parameter Absolute Maximum Rating Units

MEMS Transducer Buffer

Charge Pump Vdd

SELECT

CLK

DATA

GND

Regulator

Control

Σ∆ ADC

PRODUCT FEATURES

• High SNR • Low Current Consumption in Low-

Power 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

TYPICAL APPLICATIONS

• Portable Electronics • Cellphones • Laptop Computers • Tablets • Digital Still Cameras • Portable Music Recorders



2 SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC.

ACOUSTIC & ELECTRICAL SPECIFICATIONS1

Parameter Symbol Conditions Min Typ Max Units




Microphone SELECT Asserts DATA on Latch DATA on

Tdd

Tedge

DATA (SELECT = Vdd)

Tdv Tdz

CLOCK

DATA (SELECT = Ground)

Vih

Vil

Tdv Tdz

High Z Mic (Low)

Data

High Z Mic (High)

Data

Voh

Vol

Tedge

Voh

Vol

1/Fclock

Tdd Thold

Thold

Low

High

Ext CLOCK Input

Vhyst

Vl-h

Internal Logic Level

Vh-l

GND

PDM Mic Interface

CODEC OR APPLICATION PROCESSOR

Vdd

CLOCK

DATA

SEL

MIC1

DATA

CLOCK

GND

Vdd

SEL

MIC2

DATA

CLOCK

GND

Vdd

Vdd

Vdd

Rterm

Rterm

Rterm

Low-Power Mode 351 kHz ≤ Fclock ≤ 815 kHz

1.6V ≤ Vdd ≤ 3.6V

Normal Mode 1.0 MHz ≤ Fclock ≤ 4.8 MHz

1.6V ≤ Vdd ≤ 3.6V

Sleep Mode Fclock < 280 kHz 1.6V ≤ Vdd ≤ 3.6V

Powered Down Mode

Vdd = 0V




PERFORMANCE CURVES




MECHANICAL SPECIFICATIONS

Pin # Pin Name Type Description

Example Land Pattern Example Solder Stencil Pattern

Item Dimension Tolerance




PACKAGING & MARKING DETAIL

Model Number Suffix Reel Diameter Quantity Per Reel Component Surface Resistance (ohms)




RECOMMENDED REFLOW PROFILE

Profile Feature Pb-Free

Time 25°C to Peak

Ramp-down

Ramp-up

TSMIN

TSMAX

TL

TP

tL

tP

tS Preheat

Time 25°C




MATERIALS STATEMENT

RELIABILITY SPECIFICATIONS

Test Description


12

Knowles Corporation 1151 Maplewood Drive Itasca, Illinois 60143

Phone: 1 (630) 250-5100 Fax: 1 (630) 250-0575 [email protected]

Model/Reference Number: Datasheet SPH0641LM4H-1 Rev D © Copyright 2018 Knowles

SPECIFICATION REVISIONS

Revision Specification Changes Date

multimode digital bottom port sisonic™ microphone sheets/knowles... · multimode digital bottom...

Documents