multimode digital bottom port sisonic™ microphone · 2019-11-19 · sph0655lm4h-1 cornell ii...

SPH0655LM4H-1 CORNELL II

MULTIMODE DIGITAL BOTTOM PORT SISONIC™ MICROPHONE

knowles.com | DATASHEET SPH0655LM4H-1 Rev B © 2019, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved.

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

The SPH0655LM4H-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 SPH0655LM4H-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 SPH0655LM4H-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

• Low Distortion /High AOP • 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 • Omnidirectional • Standard SMD Reflow • 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

Vdd SEL

MIC1

CLOCK DATA

GND

Vdd

GND

PDM Mic Interface

CODEC OR APPLICATION PROCESSOR

Vdd

CLOCK DATA

Vdd

SEL

MIC2

CLOCK DATA

GND

Vdd

0.1µF

Vdd

0.1µF Zrf Rterm

Zrf Rterm

Zrf

Zrf

Zrf

Zrf

Rterm

Vdd

GND

PDM Mic Interface

CODEC OR APPLICATION PROCESSOR

Vdd

CLOCK DATA

SEL

MIC

CLOCK DATA

GND

Vdd Vdd

NC

Zrf

Zrf Rterm

Rterm

0.1µF

Zrf

Low-Power Mode 500 kHz ≤ Fclock ≤ 900 kHz

1.65V ≤ Vdd ≤ 3.6V

Normal Mode 1.1 MHz ≤ Fclock ≤ 4.8 MHz

1.65V ≤ Vdd ≤ 3.6V

Sleep Mode Fclock < 250 kHz

1.65V ≤ 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-

TSMIN

TSMAX

TL

TP

t

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 SPH0655LM4H-1 Rev B © Copyright 2019 Knowles

SPECIFICATION REVISIONS

Revision Specification Changes Date

multimode digital bottom port sisonic™ microphone · 2019-11-19 · sph0655lm4h-1 cornell ii...

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