‡Products and specifications discussed herein are for evaluation and reference purposes only and are subject to change by
Micron without notice. Products are only warranted by Micron to meet Micron’s production data sheet specifications.
MT9M131: SOC Megapixel Digital Image Sensor
Features
Preliminary
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1/3-Inch SOC Megapixel CMOS Digital
Image Sensor
MT9M131I99STC (Pb-Free iCSP)
MT9M131C12STC (Pb-Free CLCC)
Features
DigitalClarity® CMOS imaging technology
System-on-a-Chip (SOC)—Completely integrated
camera system
Ultra-low power, high fidelity, progressive scan
CMOS image sensor
Superior low-light performance
On-chip image flow processor (IFP) performs
sophisticated processing:
Color recovery and correction
Sharpening, gamma, lens shading correction
On-the-fly defect correction
Electronic pan, tilt, and zoom
Automatic features:
Auto exposure, auto white balance (AWB), auto
black reference (ABR), auto flicker avoidance, auto
color saturation, auto defect identification and
correction
Fully automatic Xenon and LED-type flash sup-
port
Fast exposure adaptation
Multiple parameter contexts
Easy and fast mode switching
Camera control sequencer automates:
Snapshots
Snapshots with flash
Video clips
•Simple two-wire serial programming interface
ITU-R BT.656 (YCbCr), 565RGB, 555RGB, or 444RGB
formats (progressive scan)
Raw and processed Bayer formats
Output FIFO and integer clock divider:
Uniform pixel clocking
Applications
•Security
•Biometrics
Videoconferencing
•Toys
Table 1: Key Performance Parameters
Table 2: Ordering Information
Parameter Typical Value
Optical format 1/3-inch (5:4)
Active imager size 4.6mm (H) x 3.7mm (V),
5.9mm diagonal
Active pixels 1,280H x 1,024V
Pixel size 3.6µm x 3.6µm
Color filter array RGB Bayer pattern
Shutter type Electronic rolling shutter
(ERS)
Maximum data rate
Maximum master clock
27 Mp/s
54 MHz
Frame Rate SXGA
(1,280 x 1,024)
15 fps at 54 MHz
QSXGA
(640 x 512)
30 fps at 54 MHz
Max. resolution at 60 fps w/
54 MHz clock
640 x 512
ADC resolution 10-bit, dual on-chip
Responsivity 1.0 V/lux-sec (550nm)
Dynamic range 71dB
SNRMAX 44dB
Supply
voltage
I/O digital 1.8–3.1V
Core digital 2.5–3.1V
Analog 2.5–3.1V
Power consumption 170mW SXGA at 15 fps
(54 MHz CLKIN)
90mW QSXGA at 30 fps
(54 MHz low-power
mode)
Operating temperature 30 °C to +70 °C
Packaging 44-ball iCSP
48-pin CLCC
Part Number Description
MT9M131I99STC 44-ball iCSP
MT9M131C12STC ES 48-pin CLCC ES
MT9M131C12STCD ES Demo kit
MT9M131C12STCH ES Demo kit headboard
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MT9M131: SOC Megapixel Digital Image Sensor
General Description
Preliminary
General Description
The Micron® Imaging MT9M131 is an SXGA-format single-chip camera with a 1/3-inch
CMOS active-pixel digital image sensor. This device combines the MT9M011 image
sensor core with fourth-generation digital image flow processor technology from Micron
Imaging. It captures high-quality color images at SXGA resolution.
The MT9M131 features DigitalClarity, Microns breakthrough, low-noise CMOS imaging
technology that achieves CCD image quality (based on signal-to-noise ratio and low-
light sensitivity) while maintaining the inherent size, cost and integration advantages of
CMOS.
The sensor is a complete camera-on-a-chip solution designed specifically to meet the
low-power, high fidelity demands of products such as security, biometrics, and video-
conferencing cameras. It incorporates sophisticated camera functions on-chip and is
programmable through a simple two-wire serial interface.
The MT9M131 performs sophisticated processing functions including color recovery,
color correction, sharpening, programmable gamma correction, auto black reference
clamping, auto exposure, automatic 50Hz/60Hz flicker avoidance, lens shading correc-
tion, auto white balance (AWB), and on-the-fly defect identification and correction.
Additional features include day/night mode configurations; special camera effects such
as sepia tone and solarization; and interpolation to arbitrary image size with continuous
filtered zoom and pan. The device supports both Xenon and LED-type flash light sources
in several snapshot modes.
The MT9M131 can be programmed to output progressive-scan images up to 30 frames
per second (fps) in preview power-saving mode, and 15 fps in full-resolution (SXGA)
mode. In either mode, the image data can be output in any one of six 8-bit formats:
ITU-R BT.656 (formerly CCIR656, progressive scan only) YCbCr
565RGB
555RGB
444RGB
Raw Bayer
•Processed Bayer
The FRAME_VALID (FV) and LINE_VALID (LV) signals are output on dedicated signals,
along with a pixel clock that is synchronous with valid data.
Table 3 lists typical values of MT9M131 performance parameters.
Table 3: MT9M131 Detailed Performance Parameters
Parameter Typical
Output Gain 25 e-/LSB
Read Noise 7 e-RMS@ 16X
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MT9M131: SOC Megapixel Digital Image Sensor
General Description
Preliminary
Figure 1: MT9M131 Quantum Efficiency vs. Wavelength
0
5
10
15
20
25
30
35
40
45
50
350 450 550 650 750 850 950 1050
Wav elength (nm)
Quantum Efficiency (%)
Blue
Green
Red
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MT9M131: SOC Megapixel Digital Image Sensor
Functional Overview
Preliminary
Functional Overview
The MT9M131 is a fully-automatic, single-chip camera, requiring only a power supply,
lens, and clock source for basic operation. Output video is streamed through a parallel 8-
bit DOUT port, shown in Figure 2.
Figure 2: Functional Block Diagram
The output pixel clock is used to latch data, while FV and LV signals indicate the active
video. The MT9M131 internal registers are configured using a two-wire serial interface.
The device can be put in low-power sleep mode by asserting STANDBY and shutting
down the clock. Output pins can be tri-stated by de-asserting OE#. Both tri-stating
output pins and entry in standby mode also can be achieved by two-wire serial interface
register writes.
The MT9M131 accepts input clocks up to 54 MHz, delivering up to 15 fps for SXGA reso-
lution images, and up to 30 fps for QSXGA (full field-of-view, sensor pixel skipping)
images. The device also supports a low- power preview configuration that delivers SXGA
images at 7.5 fps and QSXGA images at 30 fps. The device can be programmed to slow
the frame rate in low-light conditions to achieve longer exposures and better image
quality.
Sensor Core SRAM
Line Buffers
Image Flow Processor
Colorpipe
Image Flow Processor
Camera Control
Image Data
Control Bus
(Two-Wire Serial I/F
Transactions)
Pixel Data
SCLK
SDATA
CLK_IN
STANDBY
OE#
VDDQ/DGNDQ
VDD/DGND
VAA/AGND
VAAPIX
1,316H x 1,048V including black
1/3-inch optical format
Auto black compensation
Programmable analog gain
Programmable exposure
Dual 10-bit ADCs
Low-power preview mode
H/W context switch to/from preview
Bayer RGB output
Lens shading correction
Color interpolation
Filtered resize and zoom
Defect correction
Color correction
Gamma correction
Color conversion + formatting
Output FIFO
Auto exposure
Auto white balance
Flicker detect/avoid
Camera control:
snapshots, flash, video, clip
Control Bus
(Two-Wire
Serial I/F
Trans.)
DOUT[7:0]
PIXCLK
FV
LV
STROBE
Control Bus
(Two-Wire Serial I/F Transactions) +
Sensor control (gains, shutter, etc.)
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MT9M131: SOC Megapixel Digital Image Sensor
Typical Connection
Preliminary
Internal Architecture
Internally, the MT9M131 consists of a sensor core and an IFP. The IFP is divided in two
sections: the colorpipe (CP), and the camera controller (CC). The sensor core captures
raw Bayer-encoded images that are then input in the IFP. The CP section of the IFP
processes the incoming stream to create interpolated, color-corrected output, and the
CC section controls the sensor core to maintain the desired exposure and color balance,
and to support snapshot modes.
The MT9M131 supports a range of color formats derived from four primary color repre-
sentations: YCbCr, RGB, raw Bayer (unprocessed, directly from the sensor), and
processed Bayer (Bayer format data regenerated from processed RGB). The device also
supports a variety of output signaling/timing options:
Standard FV/LV video interface with gated pixel clocks
Standard video interface with uniform clocking
Progressive ITU-R BT.656 marker-embedded video interface with either gated or
uniform pixel clocking
Typical Connection
Figure 3 shows typical MT9M131 device connections.
Figure 3: Typical Configuration (Connection)
Notes: 1. For two-wire serial interface, a 1.5KΩ resistor is recommended, but may be greater for
slower two-wire speed.
2. VDD, VAA, VAAPIX must all be at the same potential, though if connected, care must be
taken to avoid excessive noise injection in the VAA/VAAPIX power domains.
3. Logic levels of all input pins, that is, SADDR, CLKIN, SCLK, SDATA, OE#, STANDBY, and RESET#
must be equal to VDDQ.
0.1µF 0.1µF
0.1µF
1µF
Master Clock
Power-on Reset
Digital GND Analog GND
1µF
1µF
Two-Wire
Serial Interface To CMOS
Camera Port
To Xenon or LED
Flash Driver
SCLK
SDATA
SADDR
SCLK
SDATA
CLKIN
RESET#
OE#
STANDBY
DGNDQ
DGND
AGND
1.8V–3.1V
I/O Digital
2.8V
Core Digital 2.8V Analog
DOUT[7:0]
FRAME_VALID
LINE_VALID
PIXCLK
STROBE
1.5KΩ
1.5KΩVDDQ
VDD
VAA/VAAPIX
DGNDQ
DGND
AGND
VDDQ
VDD
VAA
VAAPIX
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MT9M131: SOC Megapixel Digital Image Sensor
Typical Connection
Preliminary
For low-noise operation, the MT9M131 requires separate power supplies for analog and
digital. Incoming digital and analog ground conductors can be tied together next to the
die. Both power supply rails should be decoupled to ground using ceramic capacitors.
The use of inductance filters is not recommended.
The MT9M131 also supports different digital core (VDD/DGND) and I/O power (VDDQ/
DGNDQ) power domains that can be at different voltages.
Pin/Ball Assignment
The MT9M131 is available in two configurations, iCSP and CLCC, illustrated in Figure 4
and Figure 5 , respectively.
Figure 4: 44-Ball iCSP Assignment
Notes: 1. The SDATA pin (ball C7) is bidirectional.
2
D OUT 3
V
DD
D OUT 6
V
DD Q
D
OUT
V DD
LINE
VALID
FRAME
VALID STAND
BY
3
D OUT 2
D
OUT 1
D G N D Q
D G N D Q
R E S E T #
1
D GND
D OUT 4
D
OUT 5
D
OUT 7
D
OUT
S ADDR
D GND
4
V DD Q
D
OUT 0
V DD Q
6
SCLK
V
DD
V DD Q
V
DD Q
NC
V
AA
NC
7
D GND
D G N D Q
S
D A T A
1
TEST_EN
V A A P I X
NC
A
GND
5
CLKIN
P IX C L K
D
G N D Q
D G N D Q
OE#
S T R O B E
L S B 0 L S B 1
A
B
C
D
E
F
G
Top View
(Ball Down)
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MT9M131: SOC Megapixel Digital Image Sensor
Typical Connection
Preliminary
Figure 5: 48-Pin CLCC Assignment
12345648 47 4645 44 43
19 20 21 22 23 24 25 2627 28 29 30
7
8
9
10
11
12
13
14
15
16
17
18
42
41
40
39
38
37
36
35
34
33
32
31
D
GND
V
DD
D
OUT
[4]
D
OUT
[5]
D
OUT
[6]
D
OUT
[7]
D
GND
V
DD
Q
D
OUT_
LSB0
D
OUT_
LSB1
D
GND
V
DD
NC
V
DD
D
GND
S
DATA
TEST_EN
V
DD
Q
D
GND
VAAPIX
A
GND
A
GND
V
AA
V
AA
S
ADDR
LV
FV
RESET#
D
GND
V
DD
STANDBY
OE#
STROBE
D
GND
V
DD
Q
NC
D
OUT
[3]
D
OUT
[2]
D
OUT
[1]
D
OUT
[0]
V
DD
D
GND
PIXCLK
V
DD
Q
D
GND
CLKIN
SCLK
NC
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MT9M131: SOC Megapixel Digital Image Sensor
Typical Connection
Preliminary
Note: All inputs and outputs are implemented with bidirectional buffers. Care must be taken
that all inputs are driven and all outputs are driven if tri-stated.
Table 4: Pin/Ball Descriptions
Signal
iCSP
Ball
CLCC
Pin Type
Default
Operation Description
CLKIN A5 45 I/O Input Master clock in sensor
OE# F5 26 I/O Input Active LOW: output enable for Data[7:0]
RESET# G3 22 I/O Input Active LOW: asynchronous reset
SADDR F1 19 I/O Input Two-wire serial interface DeviceID selection 1:0xBA, 0:0x90
SCLK A6 44 I/O Input Two-wire serial interface clock
STANDBY F4 45 I/O Input Active HIGH: disables imager
SDATA C7 39 I/O Input Two-wire serial interface data I/O
TEST_EN D7 38 I/O Input Tie to DGND for normal operation (Manufacturing use only)
DOUT0B43I/OOutput
Data output 2
DOUT1B34I/OOutput
Data output 3
DOUT2A35I/OOutput
Data output 4
DOUT3A26I/OOutput
Data output 5
DOUT4B19I/OOutput
Data output 6
DOUT5 C1 10 I/O Output Data output 7
DOUT6 C2 11 I/O Output Data output 8
DOUT7 D1 12 I/O Output Data output 9
DOUT_LSB0 E1 15 I/O Output Sensor bypass mode output 0—typically left unconnected for
normal SOC operation
DOUT_LSB1 E2 16 I/O Output Sensor bypass mode output 1—typically left unconnected for
normal SOC operation
FV F3 21 I/O Output Active HIGH: FRAME_VALID; indicates active frame
LV G2 20 I/O Output Active HIGH: LINE_VALID, DATA_VALID; indicates active pixel
PIXCLK B5 48 I/O Output Pixel clock output
STROBE G5 27 I/O Output Active HIGH: strobe (Xenon) or turn on (LED) flash
AGND G7 33, 34 Supply Analog ground
DGND A1, A7,
G1
1, 16,
13, 17,
23, 28,
36, 40,
46
Supply Core digital ground
DGNDQ B7, C3,
C5, E3,
Ee5
Supply I/O digital ground
VAA F6 31, 32 Supply Analog power (2.53.1V)
VAAPIX E7 35 Supply Pixel array analog power supply (2.53.1V)
VDD B2, B6,
F2
2, 8, 18,
24, 41
Supply Core digital power (2.53.1V)
VDDQA4, C6,
D2, D6,
G4
14, 29,
37, 47
Supply I/O digital power (1.83.1V)
NC E6, F7,
G6
30, 42,
43
No connect
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MT9M131: SOC Megapixel Digital Image Sensor
Sensor Core Overview
Preliminary
Sensor Core Overview
The sensor consists of a pixel array of 1316 x 1048 total, an analog readout chain, 10-bit
ADC with programmable gain and black offset, and timing and control.
Figure 6: Sensor Core Block Diagram
Output Data Format
The MT9M131 sensor core image data is read out in a progressive scan. Valid image data
is surrounded by horizontal blanking and vertical blanking, shown in Figure 7. LV is
HIGH during the shaded region of the figure.
Figure 7: Spatial Illustration of Image Readout
Communication
Bus
to IFP
10-Bit Data
to IFP
Sync
Signals
Clock
Control Register
Analog Processing
Active Pixel
Sensor (APS)
Array Timing and Control
ADC
P0,0 P0,1 P0,2.....................................P0,n-1 P0,n
P1,0 P1,1 P1,2.....................................P1,n-1 P1,n
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
Pm-1,0 Pm-1,1.....................................Pm-1,n-1 Pm-1,n
Pm,0 Pm,1.....................................Pm,n-1 Pm,n
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
00 00 00 ..................................... 00 00 00
00 00 00 ..................................... 00 00 00
00 00 00 ..................................... 00 00 00
00 00 00 ..................................... 00 00 00
VALID IMAGE HORIZONTAL
BLANKING
VERTICAL BLANKING VERTICAL/HORIZONTAL
BLANKING
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MT9M131: SOC Megapixel Digital Image Sensor
Electrical Specifications
Preliminary
Electrical Specifications
Note: VDD, VAA, and VAAPIX must all be at the same potential to avoid excessive current draw.
Care must be taken to avoid excessive noise injection in the analog supplies if all three
supplies are tied together.
Table 5: Electrical Characteristics and Operating Conditions
TA = Ambient = 25°C
Parameter Condition Min Typ Max Unit
I/O digital voltage (VDDQ) 1.8 3.1 V
Core digital voltage (VDD)2.5 2.8 3.1 V
Analog voltage (VAA)2.5 2.8 3.1 V
Pixel supply voltage (VAAPIX) 2.5 2.8 3.1 V
Leakage current STANDBY, no clocks 10 µA
Operating temperature Measured at junction –30 +70 °C
Table 6: I/O Parameters
Signal Parameter Definition Condition Min Typ Max Unit
All
outputs
Load capacitance 30 pF
Output pin slew 2.8V, 30pF load 0.72 V/ns
2.8V, 5pF load 1.25 V/ns
1.8V, 30pF load 0.34 V/ns
1.8V, 5pF load 0.51 V/ns
VOH Output high voltage VDDQ – 0.3 VDDQV
VOL Output low voltage 0 0.3 V
IOH Output high current VDDQ = 2.8V, VOH = 2.4V 16 26.5 mA
VDDQ = 1.8V, VOH = 1.4V 8 15 mA
IOL Output low current VDDQ = 2.8V, VOL = 0.4V 15.9 21.3 mA
VDDQ = 1.8V, VOL = 0.4V 10.1 16.2 mA
IOZ Tri-state output
leakage current
10 µA
All
inputs
VIH Input high voltage VDDQ = 2.8V 2.0 V
VDDQ = 1.8V 1.2 V
VIL Input low voltage VDDQ = 2.8V 0.9 V
VDDQ = 1.8V 0.6 V
IIN Input leakage current –5 +5 µA
PIN CAP Ball input capacitance 3.5 pF
CLKIN Freq Master clock
frequency
Absolute minimum 2 MHz
SXGA @ 15 fps 48 54 MHz
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MT9M131: SOC Megapixel Digital Image Sensor
Electrical Specifications
Preliminary
Note: These are stress ratings only, and functional operation of the device at these or any other
conditions above those indicated in the product specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Figure 8: Optical Center Diagram
Note: Figure not to scale.
Caution Stresses above those listed in Table 7 may cause permanent damage to the device.
Table 7: Absolute Maximum Ratings
Symbol Parameter
Rating
UnitMin Max
VSUPPLY Power supply voltage (all supplies) –0.3 4.0 V
ISUPPLY Total power supply current 150 mA
IGND Total ground current 150 mA
VIN DC input voltage –0.3 VDDQ + 0.3 V
VOUT DC output voltage –0.3 VDDQ + 0.3 V
TSTG Storage temperature –40 85 °C
Die Center
(0μm, 0μm)
Optical Center
+15.63μm
-37.66μm
+ direction
- direction
+ direction- direction
First Clear Pixel
(26, 8)
Last Clear Pixel
(1,314, 1,040)
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MT9M131: SOC Megapixel Digital Image Sensor
Package Dimensions
Preliminary
Package Dimensions
The MT9M131 comes in two packages: the 44-ball iCSP package, shown in Figure 9, and
the 48-pin CLCC package, shown in Figure 10 on page 13.
Figure 9: 44-Ball iCSP Package
Notes: 1. An IR-cut filter is required to obtain optimal image quality.
2. All dimensions are in millimeters.
SEATING
PLANE
8.300 ±0.075
2.25
4.15 ±0.05
4.15 ±0.05 OPTICAL AREA
1.17 ±0.10
0.22
(FOR REFERENCE ONLY)
0.016
(FOR
REFERENCE
ONLY)
0.950 ±0.075
6.47 CTR
FIRST
CLEAR
PIXEL
BALL A1
CORNER
4.50
4.608 CTR
4.112 ±0.075
6.47
CTR
3.686
CTR
0.75 TYP
0.75 TYP
0.038 TYP
(FOR
REFERENCE
ONLY)
8.300 ±0.075
0.375 ±0.075
0.575 ±0.050
THESE DIMENSIONS ARE NON-ACCUMULATIVE
0.175 (FOR REFERENCE ONLY)
C
L
C
L
4.50
2.25
MAXIMUM ROTATION OF OPTICAL AREA RELATIVE TO PACKAGE EDGES: 1º.
0.10 A A
BALL A1 ID
BALL A1
BALL A7
44X Ø0.35
DIMENSIONS APPLY
TO SOLDER BALLS
POST REFLOW.
THE PRE-REFLOW
DIAMETER IS Ø0.33
ENCAPSULANT: EPOXY
IMAGE SENSOR DIE
LID MATERIAL: BOROSILICATE GLASS 0.40 THICKNESS
SUBSTRATE MATERIAL: PLASTIC LAMINATE
SOLDER BALL MATERIAL: 62% Sn, 36% Pb, 2%Ag OR
96.5% Sn, 3%Ag, 0.5 Cu
SOLDER MASK DEFINED BALL PADS Ø 0.27
MAXIMUM TILT OF OPTICAL AREA RELATIVE TO PACKAGE EDGE 0.3º.
MAXIMUM TILT OF OPTICAL AREA RELATIVE TO TOP OF COVER GLASS: 0.3º.
B
B
OPTICAL
CENTER PACKAGE
CENTER
4.134 ±0.075
®
8000 S. Federal Way, P.O. Box 6, Boise, ID 83707-0006, Tel: 208-368-3900
prodmktg@micron.com www.micron.com Customer Comment Line: 800-932-4992
Micron, the M logo, the Micron logo, and DigitalClarity are trademarks of Micron Technology, Inc. All other trademarks are
the property of their respective owners.
Preliminary: This data sheet contains initial characterization limits that are subject to change upon full characterization of
production devices.
MT9M131: SOC Megapixel Digital Image Sensor
Package Dimensions
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Preliminary
Figure 10: 48-Pin CLCC Package
Notes: 1. Optical center = package center.
2. An IR-cut filter is required to obtain optimal image quality.
3. All dimensions are in millimeters.
Seating
plane
4.4
11.43
5.215 5.715
Lid material: borosilicate glass 0.55 thickness
Wall material: alumina ceramic
Substrate material: alumina ceramic 0.7 thickness
8.8
4.4 5.715
4.84
5.215
0.8
TYP 1.75
0.8 TYP
8.8
48 1
10.9 ±0.1
CTR
47X
1.0 ±0.2
48X R 0.15
48X
0.40 ±0.05
11.43 10.9 ±0.1
CTR
Lead finish:
Au plating, 0.50 microns
minimum thickness
over Ni plating, 1.27 microns
minimum thickness
2.3 ±0.2
1.7
First
clear
pixel
Optical
center
1
C A
B
Optical
area
Optical area:
Maximum rotation of optical area relative to package edges: 1º
Maximum tilt of optical area relative to
seating plane A : 50 microns
Maximum tilt of optical area relative to
top of cover glass D : 100 microns
A
D
0.90
for reference only
1.400 ±0.125
0.35
for reference only
V CTR
Ø0.20 A B C
H CTR
Ø0.20 A B C
Image
sensor die:
0.675 thickness
0.10 A 0.05
0.2 4X
PDF:09005aef824c90f2/Source: 09005aef824c90f9 Micron Technology, Inc., reserves the right to change products or specifications without notice.
MT9M131_LDS_2.fm - Rev. B 3/07 EN 14 ©2006 Micron Technology, Inc. All rights reserved.
MT9M131: SOC Megapixel Digital Image Sensor
Revision History
Preliminary
Revision History
Rev. B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/28/2007
Updated package drawing