TI1 CDCS504TPWRQ1 Clock buffer and clock multiplier Datasheet

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CDCS504-Q1
SCAS951 – APRIL 2017
CDCS504-Q1 Clock Buffer and Clock Multiplier
1 Features
3 Description
•
•
The CDCS504-Q1 device is a LVCMOS input clock
buffer with selectable frequency multiplication.
1
•
•
•
•
•
•
•
•
Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following
Results:
– Device Temperature Grade 2: –40°C to 105°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
Part of a Family of Easy-to-Use Clock Generator
Devices
Clock Multiplier With Selectable Output Frequency
Frequency Multiplication Selectable Between x1
or x4 With One External Control Pin
Output Disable Through Control Pin
Single 3.3-V Device Power Supply
Wide Temperature Range: –40°C to 105°C
Low Space Consumption 8-Pin TSSOP Package
Create a Custom Design Using the CDCS504-Q1
With the WEBENCH® Power Designer
The CDCS504-Q1 has an output enable pin.
The device accepts a 3.3-V LVCMOS signal at the
input.
The input signal is processed by a phased-locked
loop (PLL), whose output frequency is either equal to
the input frequency or multiplied by the factor of four.
By this, the device can generate output frequencies
between 2 MHz and 108 MHz.
A separate control pin can be used to enable or
disable the output. The CDCS504-Q1 device
operates in a 3.3-V environment.
It is characterized for operation from –40°C to 105°C
and is available in an 8-pin TSSOP package.
Device Information(1)
PART NUMBER
CDCS504-Q1
PACKAGE
TSSOP (8)
BODY SIZE (NOM)
3.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
Automotive Applications Requiring Clock
Multiplication
Block Diagram
VDD
IN
GND
GND
FS
LVCMOS
GND
x1 or x4
LV
CMOS
OUT
Control
Logic
OE
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
CDCS504-Q1
SCAS951 – APRIL 2017
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Table of Contents
1
2
3
4
5
6
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
1
1
1
2
3
3
6.1
6.2
6.3
6.4
6.5
6.6
3
3
4
4
4
5
Absolute Maximum Ratings ......................................
ESD Ratings..............................................................
Recommended Operating Conditions.......................
Thermal Information ..................................................
Electrical Characteristics – Device Characteristics...
Typical Characteristics ..............................................
7
Parameter Measurement Information .................. 6
8
Detailed Description .............................................. 7
8.3 Feature Description................................................... 7
8.4 Device Functional Modes.......................................... 7
9
Application and Implementation .......................... 8
9.1 Application Information.............................................. 8
9.2 Typical Application ................................................... 8
10 Power Supply Recommendations ....................... 9
11 Layout..................................................................... 9
11.1 Layout Guidelines ................................................... 9
11.2 Layout Example ...................................................... 9
12 Device And Documentation Support................. 10
12.1
12.2
12.3
12.4
12.5
12.6
7.1 Measurement Circuits ............................................... 6
8.1 Overview ................................................................... 7
8.2 Functional Block Diagram ......................................... 7
Device Support......................................................
Receiving Notification of Documentation Updates
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
10
10
10
10
10
10
13 Mechanical, Packaging, and Orderable
Information ........................................................... 11
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
2
DATE
REVISION
NOTES
April 2017
*
Initial release.
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5 Pin Configuration and Functions
PW Package
8-Pin TSSOP
Top View
IN
1
8
VDD
GND
2
7
OE
GND
3
6
OUT
GND
4
5
FS
Not to scale
Pin Functions
PIN
NAME
NO.
FS
GND
TYPE
5
I
DESCRIPTION
Frequency multiplication selection, internal pullup
2, 3, 4
Ground
IN
1
I
Ground
LVCMOS clock input
OE
7
I
Output enable, internal pullup
OUT
6
O
LVCMOS clock output
VDD
8
Power
3.3-V power supply
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
MIN
MAX
UNIT
VDD
Supply voltage
–0.5
4.6
V
VIN
Input voltage
–0.5
4.6
V
Vout
Output voltage
–0.5
4.6
V
IIN
Input current (VI < 0, VI > VDD)
20
mA
Iout
Continuous output current
50
mA
TJ
Maximum junction temperature
125
°C
Tstg
Storage temperature
150
°C
(1)
–65
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
6.2 ESD Ratings
VALUE
V(ESD)
(1)
Electrostatic discharge
Human-body model (HBM), per AEC Q100-002
(1)
Charged-device model (CDM), per AEC Q100-011
±1500
±750
UNIT
V
AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
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6.3 Recommended Operating Conditions
MIN
VDD
Supply voltage
NOM
MAX
3
3.6
FS = 0
2
27
FS = 1
2
27
fIN
Input frequency
VIL
Low-level input voltage LVCMOS
VIH
High-level input voltage LVCMOS
VI
Input voltage threshold LVCMOS
CL
Output load test LVCMOS
IOH/IOL
Output current
TA
Operating free-air temperature
0.3 × VDD
0.7 × VDD
UNIT
V
MHz
V
V
0.5 × VDD
V
–40
15
pF
±12
mA
105
°C
6.4 Thermal Information
over operating free-air temperature range (unless otherwise noted) (1)
CDCS504-Q1
THERMAL METRIC (2)
PW (TSSOP)
UNIT
8 PINS
179.9
High K
Junction-to-ambient thermal
resistance
RθJA
Low K
Thermal Airflow (CFM) 0
149
Thermal Airflow (CFM) 150
142
Thermal Airflow (CFM) 250
138
Thermal Airflow (CFM) 500
132
Thermal Airflow (CFM) 0
230
Thermal Airflow (CFM) 150
185
Thermal Airflow (CFM) 250
170
Thermal Airflow (CFM) 500
°C/W
150
64.9
RθJC(top)
Junction-to-case (top) thermal
resistance
High K
65
Low K
69
°C/W
RθJB
Junction-to-board thermal resistance
ψJT
Junction-to-top characterization parameter
ψJB
Junction-to-board characterization parameter
RθJC(bot)
Junction-to-case (bottom) thermal resistance
n/a
°C/W
(1)
(2)
108.7
°C/W
9
°C/W
107
°C/W
The package thermal impedance is calculated in accordance with JESD 51 and JEDEC2S2P (high-k board).
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
6.5 Electrical Characteristics – Device Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
IDD
Device supply current
TEST CONDITIONS
MIN
fin = 3.072 MHz; FS = 1
TYP
MAX
24
UNIT
mA
FS = 0
2
27
FS = 1
8
108
fOUT
Output frequency
IIH
LVCMOS input current
VI = VDD; VDD = 3.6 V
10
μA
IIL
LVCMOS input current
VI = 0 V; VDD = 3.6 V
–10
μA
VOH
4
LVCMOS high-level output voltage
IOH = -–0.1 mA
2.9
IOH = -–8 mA
2.4
IOH = -–12 mA
2.2
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MHz
V
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Electrical Characteristics – Device Characteristics (continued)
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
VOL
TEST CONDITIONS
LVCMOS low-level output voltage
IOZ
High-impedance-state output current
MIN
0.1
IOL = 8 mA
0.5
IOL = 12 mA
0.8
–2
UNIT
V
2
μA
fout = 11.264 MHz; FS = 1,
10000 Cycles
144
ps
ns
tJIT(C-C)
Cycle to cycle jitter
tr
Rise time (1)
20%–80%
0.65
tf
Fall time (1)
20%–80%
0.55
Odc
Output duty cycle (2)
(1)
(2)
MAX
IOL = 0.1 mA
OE = Low
(1)
TYP
ns
45%
55%
Measured with Test Load, see Figure 4.
Not production tested.
6.6 Typical Characteristics
900
-40°C, 3.0 V
-40°C, 3.3 V
-40°C, 3.6 V
85°C, 3.0 V
85°C, 3.3 V
85°C, 3.6 V
800
X4 mode, Tf (ps)
X4 mode, Tr (ps)
850
25°C, 3.0 V
25°C, 3.3 V
25°C, 3.6 V
750
700
650
600
550
500
0
10
20
30
40 50 60 70
Frequency (MHz)
80
90
100 110
775
750
725
700
675
650
625
600
575
550
525
500
475
450
-40°C, 3.0 V
-40°C, 3.3 V
-40°C, 3.6 V
0
10
20
30
40 50 60 70
Frequency (MHz)
tc_D
Figure 1. Typical Tr vs Output Frequency, VDD,
Temperature in X4 Mode
25°C, 3.0 V
25°C, 3.3 V
25°C, 3.6 V
85°C, 3.0 V
85°C, 3.3 V
85°C, 3.6 V
80
90
100 110
tc_D
Figure 2. Typical Tf vs Output Frequency, VDD, Temperature
in X4 Mode
34
x4 Mode
x1 Mode
32
30
IDD - Input Current (mA)
28
26
24
22
20
18
16
14
12
10
0
3
6
9
12
15
18
21
Freq
[MHz]
24
27
30
33
D001
VCC = 3.3 V, output loaded with test load
Figure 3. IDD vs Input Frequency
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7 Parameter Measurement Information
7.1 Measurement Circuits
VDD
CDCS504-Q1
1 kW
LVCMOS
1 kW
10 pF
Copyright © 2017, Texas Instruments Incorporated
Figure 4. Test Load
CDCS504-Q1
LVCMOS
LVCMOS
Typical Driver Series Termination
~ 18 W
Impedance
~ 32 W
ZL = 50 W
Copyright © 2017, Texas Instruments Incorporated
Figure 5. Load for 50-Ω Board Environment
6
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8 Detailed Description
8.1 Overview
The CDCS504-Q1 is a LVCMOS clock buffer (x1 mode) or quadrupler (x4 mode). It integrates an internal PLL
and generates a LVCMOS clock frequency range from 2 MHz to 108 MHz.
8.2 Functional Block Diagram
VDD
GND
4
8
IN 1
LVCMOS
LVCMOS
PLL
FS 5
6 OUT
Control Logic
2
GND
3
GND
7
OE
Copyright © 2017, Texas Instruments Incorporated
8.3 Feature Description
The CDCS504-Q1 is qualified for automotive applications with AEC-Q100 test, which could support wide
temperature range from –40°C to 105°C. The device is easy to use, only need single 3.3-V power supply. The
output enable or disable mode, along with frequency multiplication, could be controlled by external controls pins.
8.4 Device Functional Modes
When pin 7 OE is in low, the CDCS504-Q1 outputs 3-state. When pin 7 OE is set in high, the device would
output clocks, output frequency depends on pin 5 FS status. FS = high enables frequency ×4 mode. FS= low
makes output frequency equal to input frequency. If no input clock is provided, it is recommended to set OE=low
in order to avoid random clock pulses from the internal PLL at the outputs.
Table 1. Function Table
OE
FS
fOUT/fIN
0
x
x
fOUT at fin = 27 MHz
3-state
1
0
1
27 MHz
1
1
4
108 MHz
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9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The CDCS504-Q1 is a clock buffer or multiplier for automotive amplifiers and infotainment. It is fit for the
TAS6424-Q1, a four-channel, class-D, digital-input audio-amplifier, when the applications are without available
MCLK. See Figure 6 for more details.
9.2 Typical Application
SCLK
(2.816 MHz)
CDCS504-Q1
MCLK
(11.264 MHz)
SCLK
(2.816 MHz)
Audio DSP
TAS6424
Other Signals
Copyright © 2017, Texas Instruments Incorporated
Figure 6. Clock for Automotive Amplifiers
9.2.1 Design Requirements
The CDCS504-Q1 is supplied with a single-power 3.3 V. The device supports minimum input frequency to 2
MHz. For maximum input frequency, it is 32 MHz in ×1 mode, and 27 MHz in ×4 mode. The input clock is
LVCMOS type and should satisfy requirements in the Recommended Operating Conditions.
9.2.2 Detailed Design Procedure
In some applications, the clock input for CDCS504-Q1 is not always presented. In case there is an unexpected
clock output without clock input, TI recommends setting OE pin to low. When it gets clock input ready, set OE pin
to high to get expected clock output. If the other application presents continuous clock input for CDCS504-Q1,
the OE pin could be floated, internal pullup brings output enable, or an external pullup circuits could be used
fixedly.
9.2.2.1 Custom Design With WEBENCH® Tools
Click here to create a custom design using the CDCS504-Q1 device with the WEBENCH® Power Designer.
1. Start by entering the input voltage (VIN), output voltage (VOUT), and output current (IOUT) requirements.
2. Optimize the design for key parameters such as efficiency, footprint, and cost using the optimizer dial.
3. Compare the generated design with other possible solutions from Texas Instruments.
The WEBENCH Power Designer provides a customized schematic along with a list of materials with real-time
pricing and component availability.
8
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Typical Application (continued)
In most cases, these actions are available:
• Run electrical simulations to see important waveforms and circuit performance
• Run thermal simulations to understand board thermal performance
• Export customized schematic and layout into popular CAD formats
• Print PDF reports for the design, and share the design with colleagues
Get more information about WEBENCH tools at www.ti.com/WEBENCH.
9.2.3 Application Curves
100
80
92.7
100.5
98.5
Output cycle to cycle jitter (ps)
Output cycle to cycle jitter (ps)
125
91.1
75
50
25
0
66.3
60
59.2
61.9
56.4
40
20
0
-40
0
25
85
Ta (°C)
-40
X1 mode, 8-MHz input, 8-MHz output, VDD = 3.3 V
Figure 7. Typical Cycle-to-Cycle Jitter vs Temperature
0
25
Ta (°C)
ac_D
85
ac_D
X4 mode, 27.5-MHz input, 110-MHz output, VDD = 3.3 V
Figure 8. Typical Cycle-to-Cycle Jitter vs Temperature
10 Power Supply Recommendations
The CDCS504-Q1 requires a 3.3-V supply.
11 Layout
11.1 Layout Guidelines
The CDCS504-Q1 only has typical 20-mA supply current, so there is no thermal design challenge. A 0.01-µF
capacitor may be placed close to VDD pin as a bypass capacitor.
11.2 Layout Example
Figure 9. Layout Example
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12 Device And Documentation Support
12.1 Device Support
12.1.1 Development Support
12.1.1.1 Custom Design With WEBENCH® Tools
Click here to create a custom design using the CDCS504-Q1 device with the WEBENCH® Power Designer.
1. Start by entering the input voltage (VIN), output voltage (VOUT), and output current (IOUT) requirements.
2. Optimize the design for key parameters such as efficiency, footprint, and cost using the optimizer dial.
3. Compare the generated design with other possible solutions from Texas Instruments.
The WEBENCH Power Designer provides a customized schematic along with a list of materials with real-time
pricing and component availability.
In most cases, these actions are available:
• Run electrical simulations to see important waveforms and circuit performance
• Run thermal simulations to understand board thermal performance
• Export customized schematic and layout into popular CAD formats
• Print PDF reports for the design, and share the design with colleagues
Get more information about WEBENCH tools at www.ti.com/WEBENCH.
12.2 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
12.3 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
12.4 Trademarks
E2E is a trademark of Texas Instruments.
WEBENCH is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
12.5 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
12.6 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
10
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13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
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PACKAGE OPTION ADDENDUM
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28-Apr-2017
PACKAGING INFORMATION
Orderable Device
Status
(1)
CDCS504TPWRQ1
PREVIEW
Package Type Package Pins Package
Drawing
Qty
TSSOP
PW
8
2000
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
Op Temp (°C)
Device Marking
(4/5)
-40 to 105
CS504Q
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
Samples
PACKAGE MATERIALS INFORMATION
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28-Apr-2017
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
CDCS504TPWRQ1
Package Package Pins
Type Drawing
TSSOP
PW
8
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
2000
330.0
12.4
Pack Materials-Page 1
7.0
B0
(mm)
K0
(mm)
P1
(mm)
3.6
1.6
8.0
W
Pin1
(mm) Quadrant
12.0
Q1
PACKAGE MATERIALS INFORMATION
www.ti.com
28-Apr-2017
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
CDCS504TPWRQ1
TSSOP
PW
8
2000
367.0
367.0
35.0
Pack Materials-Page 2
PACKAGE OUTLINE
PW0008A
TSSOP - 1.2 mm max height
SCALE 2.800
SMALL OUTLINE PACKAGE
C
6.6
TYP
6.2
SEATING PLANE
PIN 1 ID
AREA
A
0.1 C
6X 0.65
8
1
3.1
2.9
NOTE 3
2X
1.95
4
5
B
4.5
4.3
NOTE 4
SEE DETAIL A
8X
0.30
0.19
0.1
C A
1.2 MAX
B
(0.15) TYP
0.25
GAGE PLANE
0 -8
0.15
0.05
0.75
0.50
DETAIL A
TYPICAL
4221848/A 02/2015
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not
exceed 0.15 mm per side.
4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm per side.
5. Reference JEDEC registration MO-153, variation AA.
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EXAMPLE BOARD LAYOUT
PW0008A
TSSOP - 1.2 mm max height
SMALL OUTLINE PACKAGE
8X (1.5)
8X (0.45)
SYMM
1
8
(R0.05)
TYP
SYMM
6X (0.65)
5
4
(5.8)
LAND PATTERN EXAMPLE
SCALE:10X
SOLDER MASK
OPENING
METAL
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
0.05 MAX
ALL AROUND
0.05 MIN
ALL AROUND
SOLDER MASK
DEFINED
NON SOLDER MASK
DEFINED
SOLDER MASK DETAILS
NOT TO SCALE
4221848/A 02/2015
NOTES: (continued)
6. Publication IPC-7351 may have alternate designs.
7. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
www.ti.com
EXAMPLE STENCIL DESIGN
PW0008A
TSSOP - 1.2 mm max height
SMALL OUTLINE PACKAGE
8X (1.5)
8X (0.45)
SYMM
(R0.05) TYP
1
8
SYMM
6X (0.65)
5
4
(5.8)
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
SCALE:10X
4221848/A 02/2015
NOTES: (continued)
8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
9. Board assembly site may have different recommendations for stencil design.
www.ti.com
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