SPM0437HD4H-B [KNOWLES]
Digital SiSonicTM Microphone; 数字SiSonicTM麦克风![SPM0437HD4H-B](http://pdffile.icpdf.com/pdf1/p00200/img/icpdf/SPM043_1131577_icpdf.jpg)
型号: | SPM0437HD4H-B |
厂家: | ![]() |
描述: | Digital SiSonicTM Microphone |
文件: | 总13页 (文件大小:909K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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SPM0437HD4H-B
Digital SiSonicTM Microphone
The SPM0437HD4H is a miniature, high-
performance, low power, top port silicon
digital microphone with a single bit PDM
output. Using Knowles’ proven high
Features:
Low Current
PDM Output
Supports Dual Multiplexed Channels
Ultra-Stable Performance
Standard SMD Reflow
Omnidirectional
performance SiSonicTM MEMS technology,
the SPM0437HD4H 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.
Revision: A
Sheet 1 of 13
7/25/2013
©2013 Knowles Electronics
SPM0437HD4H-B
1. ABSOLUTE MAXIMUM RATINGS
Parameter
Absolute Maximum Rating Units
VDD, DATA to Ground
CLOCK to Ground
SELECT to Ground
Input Current
-0.3, +5.0
-0.3, +5.0
-0.3, +5.0
±5
V
V
V
mA
sec
°C
Short Circuit Current to/from DATA Indefinite to Ground or VDD
Temperature Range -40 to +100
Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only. Functional operation at these or any other conditions beyond those indicated under “Acoustic
& Electrical Specifications” is not implied. Exposure beyond those indicated under “Acoustic & Electrical
Specifications” for extended periods may affect device reliability.
2. ACOUSTIC & ELECTRICAL SPECIFICATIONS
TEST CONDITIONS: 23 ±2°C, 55±20% R.H., VDD=1.8 V, FCLOCK=2.4 MHz, SELECT pin is grounded, no load,
unless otherwise indicated
Parameter
Supply Voltage1
Supply Current1,2,3
Sleep Current3
Sensitivity1
Symbol
VDD
Conditions
Min
1.6
-
Typ
-
Max
3.6
500
10
Units
V
IDD
380
6
µA
ISLEEP
S
FCLOCK < 1 kHz
94 dB SPL @ 1 kHz
-
µA
-29
-26
57.5
-23
-
dBFS
dB(A)
Signal to Noise Ratio
SNR
94 dB SPL @ 1 kHz, A-weighted
Total Harmonic
Distortion
THD
AOP
PSRR
PSR
94 dB SPL @ 1 kHz, S = Typ
10% THD @ 1 kHz, S = Typ
200 mVpp sinewave @ 1 kHz
-
-
-
.5
119
51
%
Acoustic Overload
Point
dB
SPL
-
-
Power Supply
Rejection Ratio
dBV
/FS
Power Supply
Rejection
100 mVpp square wave
@ 217 Hz, A-weighted
dBFS
(A)
-
-
-80
-6
-
-
DC Output
Directivity
Fullscale = ±100
% FS
Omnidirectional
Decreasing density of 1’s
½ Cycle PDM
Polarity
Increasing sound pressure
Data Format
Logic Input High
VIH
0.65xVDD
-
3.6
V
Revision: A
7/25/2013
Sheet 2 of 13
©2013 Knowles Electronics
SPM0437HD4H-B
Parameter
Logic Input Low
Logic Output High
Logic Output Low
SELECT (high)
Symbol
VIL
Conditions
Min
Typ
Max
0.35xVDD
VDD
Units
-0.3
-
-
-
-
-
-
-
-
-
-
-
-
V
VOH
IOUT = 2 mA
IOUT = 2 mA
0.7xVDD
V
VOL
0
0.3xVDD
3.6
V
VDD -0.2
V
SELECT (low)
-0.3
0.2
V
Short Circuit Current
Output Load
ISC
Grounded DATA pin
2
-
10
mA
pF
MHz
%
CLOAD
FCLOCK
160
3.25
60
Clock Frequency
Clock Duty Cycle
Clock Rise/Fall Time
Fall-asleep Time4,5
Wake-up Time4,6
1.0
40
-
tEDGE
10
ns
FCLOCK < 1 kHz
FCLOCK ≥ 1 MHz
-
10
ms
ms
-
20
No load for min tDV
Max CLOAD for max tDV
Delay Time for Valid
Data
tDV
tDZ
18
0
-
-
125
16
ns
ns
Delay Time for High Z
1 100% tested.
2 IDD varies with CLOAD according to: ΔIDD = 0.5*VDD*ΔCLOAD*FCLOCK
.
3 Maximum specifications are measured at maximum VDD. Typical specifications are measured at standard test
conditions.
4 Valid microphones states are: Powered Down Mode (mic off), Sleep Mode (low current, DATA = high-Z, fast startup),
and Active Mode (normal operation).
5 Time from FCLOCK < 1 kHz to ISLEEP specification is met when transitioning from Active Mode to Sleep Mode.
6 Time from FCLOCK ≥ 1 MHz to all applicable specifications are met when transitioning from Sleep Mode to Active Mode.
Revision: A
7/25/2013
Sheet 3 of 13
©2013 Knowles Electronics
SPM0437HD4H-B
3. MICROPHONE STATE DIAGRAM
Active
Mode
Powered
Down
Mode
Sleep
Mode
Revision: A
7/25/2013
Sheet 4 of 13
©2013 Knowles Electronics
SPM0437HD4H-B
4. FREQUENCY RESPONSE CURVE
Typical Free Field Response
Normalized to 1 kHz
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
100
1,000
10,000
Frequency (Hz)
Revision: A
Sheet 5 of 13
7/25/2013
©2013 Knowles Electronics
SPM0437HD4H-B
5. INTERFACE CIRCUIT
VDD
VDD
.1f
.1f
SELECT
SELECT
Mic
Mic
(High)
(Low)
DATA CLOCK
Asserts DATA On
Microphone
Mic (High)
Mic (Low)
SELECT
VDD
Latch DATA On
Falling Clock Edge
Rising Clock Edge
Rising Clock Edge
Falling Clock Edge
GND
Note: All Ground pins must be connected to ground.
Bypass Capacitors near each mic on Vdd are recommened to provide maximum SNR performance.
Capacitors near the microphone should not contain Class 2 dielectrics.
Detailed information on acoustic, mechanical, and system integration can be found in the latest
SiSonicTM Design Guide application note.
6. TIMING DIAGRAM
1/FCLOCK
tEDGE
VIH
VIL
tEDGE
CLOCK
tDZ
tDV
VOH
Mic (High)
High Z
DATA
(SELECT = VDD)
Data
VOL
tDZ
tDV
VOH
High Z
Mic (Low)
Data
DATA
(SELECT = GND)
VOL
Revision: A
7/25/2013
Sheet 6 of 13
©2013 Knowles Electronics
SPM0437HD4H-B
7. MECHANICAL SPECIFICATIONS
Item
Length (L)
Dimension
4.72
Tolerance
±0.10
Width (W)
3.76
±0.10
Height (H)
1.25
±0.10
Acoustic Port (AP)
Ø0.84
±0.08
Pin #
Pin Name
Type
Description
1
GROUND
Power
Ground
Non-Digital
Input
Lo/Hi (L/R) Select
This pin is internally pulled low.
2
SELECT
3
4
5
6
GROUND
CLOCK
DATA
Power
Digital I
Digital O
Power
Ground
Clock Input
PDM Output
Power Supply
VDD
Notes:Pick Area only extends to 0.25 mm of any edge or hole unless otherwise specified.
Dimensions are in millimeters unless otherwise specified.
Tolerance is ±0.15mm unless otherwise specified
Revision: A
Sheet 7 of 13
7/25/2013
©2013 Knowles Electronics
SPM0437HD4H-B
8. EXAMPLE LAND PATTERN
9. EXAMPLE SOLDER STENCIL PATTERN
Notes: Dimensions are in millimeters unless otherwise specified.
Further optimizations based on application should be performed.
Revision: A
7/25/2013
Sheet 8 of 13
©2013 Knowles Electronics
SPM0437HD4H-B
10. PACKAGING & MARKING DETAIL
Model Number
Suffix Reel Diameter Quantity Per Reel
-6 13” 4,800
SPM0437HD4H-B
Pin 1
Alpha Character A:
“S”: Knowles SiSonicTM Production
“E”: Knowles Engineering Samples
“P”: Knowles Prototype Samples
“JIN NUMBER”:
Unique Job Identification Number
for product traceability
Notes: Dimensions are in millimeters unless otherwise specified.
Vacuum pickup only in the pick area indicated in Mechanical Specifications.
Tape & reel per EIA-481.
Labels applied directly to reel and external package.
Revision: A
7/25/2013
Sheet 9 of 13
©2013 Knowles Electronics
SPM0437HD4H-B
11. RECOMMENDED REFLOW PROFILE
tP
TP
Ramp-up
TL
tL
TSMAX
tS Preheat
Ramp-down
TSMIN
25°C
Time
Time 25°C to Peak
Profile Feature
Pb-Free
Average Ramp-up rate (TSMAX to TP)
Preheat
3°C/second max.
Temperature Min (TSMIN)
150°C
200°C
60-180 seconds
Temperature Max (TSMAX
)
Time (TSMIN to TSMAX) (tS)
Time maintained above:
Temperature (TL)
Time (tL)
217°C
60-150 seconds
Peak Temperature (TP)
Time within 5°C of actual Peak Temperature (tP)
Ramp-down rate (TP to TSMAX
260°C
20-40 seconds
6°C/second max
8 minutes max
)
Time 25°C to Peak Temperature
Notes: Based on IPC/JDEC J-STD-020 Revision C.
All temperatures refer to topside of the package, measured on the package body
surface.
Revision: A
Sheet 10 of 13
7/25/2013
©2013 Knowles Electronics
SPM0437HD4H-B
12. ADDITIONAL NOTES
(A) Shelf life: Twelve (12) months when devices are to be stored in factory supplied, unopened
ESD moisture sensitive bag under maximum environmental conditions of 30°C, 70% R.H.
(B) MSL (moisture sensitivity level) Class 1.
(C) Maximum of 3 reflow cycles is recommended.
(D) In order to minimize device damage:
Do not board wash or clean after the reflow process.
Do not brush board with or without solvents after the reflow process.
Do not directly expose to ultrasonic processing, welding, or cleaning.
Do not insert any object in port hole of device at any time.
Do not apply over 30 psi of air pressure into the port hole.
Do not pull a vacuum over port hole of the microphone.
Do not apply a vacuum when repacking into sealed bags at a rate faster than 0.5 atm/sec.
13. MATERIALS STATEMENT
Meets the requirements of the European RoHS directive, 2011/65/EC as amended.
Meets the requirements of the industry-standard IEC 61249-2-21:2003 for halogenated
substances and Knowles Green Materials Standards Policy section on Halogen-Free.
Ozone depleting substances are not used in the product or the processes used to make the
product including compounds listed in annex A, B, and C of the “Montreal Protocol on
Substances that deplete the ozone Layer.”
Revision: A
Sheet 11 of 13
7/25/2013
©2013 Knowles Electronics
SPM0437HD4H-B
14. RELIABILITY SPECIFICATIONS
Test
Description
100 cycles air-to-air thermal shock from -40oC to +125oC with 15
minute soaks. (IEC 68-2-4)
Thermal Shock
High Temperature Storage
Low Temperature Storage
High Temperature Bias
Low Temperature Bias
1,000 hours at +105oC environment (IEC 68-2-2 Test Ba)
1,000 hours at -40oC environment (IEC 68-2-2 Test Aa)
1,000 hours at +105oC under bias (IEC 68-2-2 Test Ba)
1,000 hours at -40oC under bias (IEC 68-2-2 Test Aa)
Temperature / Humidity Bias 1,000 hours at +85oC/85% R.H. under bias. (JESD22-A101A-B)
4 cycles of 20 to 2,000 Hz sinusoidal sweep with 20 G peak
acceleration lasting 12 minutes in X, Y, and Z directions.
(Mil-Std-883E, method 2007.2 A)
Vibration
ESD-HBM
3 discharges of ±2 kV direct contact to I/O pins. (ESD STM5.2)
3 discharges of ±8 kV direct contact to lid while unit is grounded.
(IEC 61000-4-2)
ESD-LID/GND
3 discharges of ±2 kV direct contact to I/O pins.
(MIL 883E, Method 3015.7)
ESD-MM
Reflow
5 reflow cycles with peak temperature of +260oC
Mechanical Shock
3 pulses of 10,000 G in the X, Y, and Z direction (IEC 68-2-27, Test Ea)
Note: After reliability tests are performed, the sensitivity of the microphones shall not deviate
more than 3 dB from its initial value.
Revision: A
Sheet 12 of 13
7/25/2013
©2013 Knowles Electronics
SPM0437HD4H-B
15. SPECIFICATION REVISIONS
Revision
Specification Changes
Initial Release (C10115114)
Date
A
7/25/13
Information contained herein is subject to change without notice. It may be used by a party at their own discretion
and risk. We do not guarantee any results or assume any liability in connection with its use. This publication is not
to be taken as a license to operate under any existing patents.
Revision: A
Sheet 13 of 13
7/25/2013
©2013 Knowles Electronics
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