SPH0641LM4H-1
MORELLO
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
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.
Charge Pump
Control
Buffer
Σ∆ ADC
Power Mode
• Flat Frequency Response
• High Drive Capability
• Sensitivity Matching
• Supports Dual Multiplexed Channels
• Multiple Performance Modes (Sleep,
SELECT
CLK
MEMS
Transducer
• High SNR
• Low Current Consumption in Low-
• RF Shielded
• Bottom Port
Vdd
Regulator
PRODUCT FEATURES
DATA
Low-Power, Normal)
• Ultra-Stable Performance
• Standard SMD Reflow
GND
ABSOLUTE MAXIMUM RATINGS
• Omnidirectional
• Small Size
• LGA Package
Parameter
Absolute Maximum Rating
Units
TYPICAL APPLICATIONS
• Portable Electronics
• Cellphones
• Laptop Computers
• Tablets
• Digital Still Cameras
• Portable Music Recorders
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
ACOUSTIC & ELECTRICAL SPECIFICATIONS1
Parameter
2
Symbol
Conditions
Min
Typ
Max
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.
Units
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Parameter
Symbol
Conditions
Min
Typ
Max
Units
3
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Parameter
Symbol
Conditions
Min
Typ
Max
Units
4
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
1/Fclock
MIC1
Vdd
Vih
Vdd
Tedge
CLOCK
Tedge
SEL
Vil
Rterm
Vdd
CLOCK
GND
DATA
(SELECT = Vdd)
Tdd
Thold
Voh
SEL
Tdv
High Z
Vdd
Tdd
Tdz
PDM Mic
Interface
CLOCK
DATA
MIC2
Vdd
High Z
Mic (High)
Data
Vol
DATA
(SELECT = Ground)
Rterm
Tdz
Tdv
CODEC OR
APPLICATION PROCESSOR
DATA
Rterm
DATA
GND
CLOCK
GND
Thold
Voh
Mic (Low)
Data
Vol
Vhyst
High
Microphone
SELECT
Asserts DATA on
Latch DATA on
Internal
Logic
Level
Low
Ext CLOCK
Input
Vh-l
Vl-h
Normal Mode
1.0 MHz ≤ Fclock ≤ 4.8 MHz
1.6V ≤ Vdd ≤ 3.6V
Powered
Down
Mode
Vdd = 0V
Sleep Mode
Fclock < 280 kHz
1.6V ≤ Vdd ≤ 3.6V
5
Low-Power Mode
351 kHz ≤ Fclock ≤ 815 kHz
1.6V ≤ Vdd ≤ 3.6V
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
PERFORMANCE CURVES
6
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
7
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
MECHANICAL SPECIFICATIONS
Item
Dimension
Example Land Pattern
8
Tolerance
Pin #
Pin Name
Type
Description
Example Solder Stencil Pattern
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
PACKAGING & MARKING DETAIL
Model Number
9
Suffix
Reel Diameter
Quantity Per
Reel
Component
Surface Resistance (ohms)
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
RECOMMENDED REFLOW PROFILE
TP
tP
Ramp-up
TL
TSMAX
TSMIN
tL
tS Preheat
Ramp-down
25°C
Time 25°C to Peak
Profile Feature
10
Time
Pb-Free
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
MATERIALS STATEMENT
RELIABILITY SPECIFICATIONS
Test
11
Description
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.
MULTIMODE DIGITAL BOTTOM PORT
SISONIC™ MICROPHONE
SPECIFICATION REVISIONS
Revision
12
Specification Changes
Knowles Corporation
1151 Maplewood Drive
Itasca, Illinois 60143
Date
Phone: 1 (630) 250-5100
Fax: 1 (630) 250-0575
sales@knowles.com
Model/Reference Number:
Datasheet SPH0641LM4H-1 Rev D
© Copyright 2018 Knowles