LMH0036 SD SDI Reclocker with 4:1 Input Multiplexer
Check for Samples: LMH0036
1
FEATURES
2
•Supports SMPTE 259M (C) Serial Digital Video
Standard
•Supports 270 Mbps Serial Data Rate Operation
•Supports DVB-ASI at 270 MbpsEquipment
•Single 3.3V Supply Operation– DVB-ASI Equipment
•360 mW Typical Power Consumption– Video Standards and Format Converters
•Integrated 4:1 Multiplexed Input
•Two Differential, Reclocked Outputs
•Choice of Second Reclocked Output or LowJitter, Differential, Data-Rate Clock Output
•Single 27 MHz External Crystal or Reference
Clock Input
•Lock Detect Indicator Output
•Output Mute Function for Data and Clock
•Auto/Manual Reclocker Bypass
•Differential LVPECL Compatible Serial Data
Inputs and Outputs
•LVCMOS Control Inputs and Indicator Outputs
•48-Pin WQFN Package
•Industrial Temperature Range: -40°C to +85°C
•Footprint Compatible with the LMH0056 and
LMH0356
APPLICATIONS
•SDTV Serial Digital Video Interfaces for:
– Digital Video Routers and Switchers
– Digital Video Processing and Editing
DESCRIPTION
The LMH0036 SD SDI Reclocker with 4:1 Input
Multiplexerretimesserialdigitalvideodata
conforming to the SMPTE 259M (C) standard. The
LMH0036 operates at the serial data rate of 270
Mbps, and also supports DVB-ASI operation at 270
Mbps. The LMH0036 includes an integrated 4:1 input
multiplexer for selecting one of four input data
streams for retiming.
The LMH0036 retimes the incoming data to suppress
accumulated jitter. The LMH0036 recovers the serial
data-rate clock and optionally provides it as an
output. The LMH0036 has two differential serial data
outputs; the second output may be selected as a lowjitter, data-rate clock output. Controls and indicators
are: serial clock or second serial data output select,
manual rate select input, SD indicator output, lock
detect output, auto/manual data bypass, and output
mute. The serial data inputs, outputs, and serial datarateclockoutputsaredifferentialLVPECL
compatible. The CML serial data and serial data-rate
clockoutputsaresuitablefordriving100Ω
differentially terminated networks. The control logic
inputs and outputs are LVCMOS compatible.
The LMH0036 is powered from a single 3.3V supply.
Power dissipation is typically 360 mW. The device is
housed in a 48-pin WQFN package.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
16OUTPUT MUTEpullup.
18XTAL IN/EXT CLKCrystal or External Oscillator input.
22XTAL OUTCrystal Oscillator output.
24LOCK DETECTPLL Lock Detect output (active high).
28SCO/SDO2Serial Clock or Serial Data Output 2 complement.
29SCO/SDO2Serial Clock or Serial Data Output 2 true.
32SDOData Output complement.
33SDOData Output true.
36SDSD indicator output. Output is high when locked to 270 Mbps.
37SCO_ENhigh and the data when low. This pin has an internal pulldown.
43LF1Loop Filter.
44LF2Loop Filter.
45NCNo Connect. Not bonded internally.
46RSVDReserved. Do not connect or connect to ground.
47SEL0Data Input select input. This pin has an internal pulldown.
48SEL1Data Input select input. This pin has an internal pulldown.
3, 6, 12, 14,
30, 31, 34, 35 V
DAP, 13, 17,
19, 20, 21,
23, 25, 26,
27, 38, 39,
40, 41, 42V
CC
EE
Bypass/Auto Bypass mode select. Bypasses reclocking when high. This pin has an internal
Data and Clock Output Mute input. Mutes the output when low. This pin has an internal
Serial Clock or Serial Data 2 Output select. Sets second output to output the clock when
Positive power supply input.
Negative power supply input.
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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.
Supply Voltage (VCC–VEE)4.0V
Logic Supply Voltage (Vi)VEE−0.15V to VCC+0.15V
Logic Input Current (single input)Vi = VEE−0.15V−5 mA
Vi = VCC+0.15V+5 mA
Logic Output Voltage (Vo)VEE−0.15V to VCC+0.15V
Logic Output Source/Sink Current±8 mA
Serial Data Input Voltage (V
Serial Data Output Sink Current (I
)VCCto VCC−2.0V
SDI
)24 mA
SDO
Package Thermal ResistanceθJA48-pin WQFN26.1°C/W
θ
48-pin WQFN1.9°C/W
JC
Storage Temp. Range−65°C to +150°C
Junction Temperature+150°C
Lead Temperature (Soldering 4 Sec)+260°C (Pb-free)
ESD Rating (HBM)8 kV
ESD Rating (MM)400V
ESD Rating (CDM)1250V
(1) “Absolute Maximum Ratings” are those parameter values beyond which the life and operation of the device cannot be ensured. The
stating herein of these maximums shall not be construed to imply that the device can or should be operated at or beyond these values.
DC ELECTRICAL CHARACTERISTICS and AC ELECTRICAL CHARACTERISTICS specify acceptable device operating conditions.
(2) It is anticipated that this device will not be offered in a military qualified version. If Military/Aerospace specified devices are
required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications.
RECOMMENDED OPERATING CONDITIONS
Supply Voltage (VCC–VEE)3.3V ±5%
Logic Input VoltageVEEto V
Differential Serial Input Voltage800 mV ±10%
Serial Data or Clock Output Sink Current (ISO)16 mA max.
Operating Free Air Temperature (TA)−40°C to +85°C
DC ELECTRICAL CHARACTERISTICS
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified.
SymbolParameterConditionsReferenceMinTypMaxUnits
V
V
V
V
V
SDID
V
V
SDOD
V
CMO
I
(1) Current flow into device pins is defined as positive. Current flow out of device pins is defined as negative. All voltages are referenced to
VEE(equal to zero volts).
(2) Typical values are stated for: VCC= +3.3V, TA= +25°C.
Input Voltage High LevelLogic level inputs2V
IH
Input Voltage Low LevelV
IL
I
Input Current High LevelVIH= V
IH
I
Input Current Low LevelVIL= V
IL
Output Voltage High Level IOH= −2 mAAll logic level2V
OH
Output Voltage Low LevelIOL= +2 mAVEE+ 0.6V
OL
CC
EE
outputs
Serial Input Voltage,SDI
Differential
Input Common ModeV
CMI
Voltage
= 200 mVSDI
SDID
Serial Output Voltage,100Ω differential loadSDO, SCO
Differential
Output Common Mode100Ω differential loadSDO, SCOV
Voltage
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified.
SymbolParameterConditionsReferenceMinTypMaxUnits
BR
TOL
TOL
t
BW
F
t
T
tr, t
tr, t
tr, t
tr, t
F
F
Serial Data RateSMPTE 259M (C)SDI, SDO270Mbps
SD
Serial Input Jitter270 Mbps
JIT
Tolerance
Serial Input Jitter270 Mbps
JIT
Tolerance
Serial Data Output Jitter270 Mbps
JIT
Loop Bandwidth270 Mbps,
LOOP
Serial Clock Output270 Mbps data rateSCO
CO
Frequency
Serial Clock Output Jitter23ps
JIT
<0.1dB Peaking
(2)(3)(4)
(2)(3)(5)
(3)(6)
SDI
SDI
SDO0.020.08UI
Serial Clock OutputSDO, SCO
Alignment with respect to4060%
Data Interval
Serial Clock Output DutySCO
Cycle
Acquisition TimeSee
ACQ
Input rise/fall time10%–90%Logic inputs1.53ns
f
Input rise/fall time20%–80%SDI1500ps
f
Output rise/fall time10%–90%Logic outputs1.53ns
f
Output rise/fall time20%–80%
f
Reference Clock
REF
Frequency
Ref. Clock Freq.
TOL
Tolerance
(7)(8)
(9)
SCO, SDO90130ps
(1)
>6UI
>0.6UI
300kHz
270MHz
4555%
15ms
27MHz
±50ppm
P-P
P-P
P-P
RMS
(1) Typical values are stated for: VCC= +3.3V, TA= +25°C.
(2) Peak-to-peak amplitude with sinusoidal modulation per SMPTE RP 184-1996 paragraph 4.1. The test data signal shall be color bars.
(3) This parameter is ensured by characterization over voltage and temperature limits.
(4) Refer to “A1” in Figure 1 of SMPTE RP 184-1996.
(5) Refer to “A2” in Figure 1 of SMPTE RP 184-1996.
(6) Serial Data Output Jitter is total output jitter with 0.2UI
(7) Specification is ensured by design.
input jitter.
P-P
(8) Measured from first SDI transition until Lock Detect (LD) output goes high (true).
(9) RL= 100Ω differential.
The LMH0036 SD SDI Reclocker with 4:1 Input Multiplexer is used in many types of digital video signal
processing equipment. The LMH0036 supports the SMPTE 259M (C) standard, with a corresponding serial data
rate of 270 Mbps. DVB-ASI data at 270 Mbps may also be retimed. The LMH0036 retimes the serial data stream
to suppress accumulated jitter. It provides two low-jitter, differential, serial data outputs. The second output may
be selected to output either serial data or a low-jitter serial data-rate clock. Controls and indicators are: serial
data-rate clock or second serial data output select, manual rate select input, SD indicator output, lock detect
output, auto/manual data bypass and output mute.
Serial data inputs are CML and LVPECL compatible. Serial data and data-rate clock outputs are differential CML
and produce LVPECL compatible levels. The output buffer design can drive AC or DC-coupled, terminated 100Ω
differential loads. The differential output level is 800 mV
±10% into 100Ω AC or DC-coupled differential loads.
P-P
Logic inputs and outputs are LVCMOS compatible.
The device package is a 48–pin WQFN with an exposed die attach pad. The exposed die attach pad is
electrically connected to device ground (VEE) and is the primary negative electrical terminal for the device. This
terminal must be connected to the negative power supply or circuit ground.
Serial Data Inputs, Serial Data and Clock Outputs
SERIAL DATA INPUT AND OUTPUTS
The differential serial data inputs, SDI0-SDI3, accept 270 Mbps serial digital video data. The serial data inputs
are differential LVPECL compatible. These inputs are intended to be DC interfaced to devices such as the
LMH0074 adaptive cable equalizer. These inputs are not internally terminated or biased. The inputs may be ACcoupled if a suitable input bias voltage is provided.
The LMH0036 provides four independent, multiplexed data inputs. The active input channel is selected via the
SEL0 and SEL1 pins, as shown in Table 1. Figure 2 shows the equivalent input circuit for SDI[3:0] and SDI[3:0].
The LMH0036 has two, retimed, differential, serial data outputs, SDO and SCO/SDO2. These outputs provide
low jitter, differential, retimed data to devices such as the LMH0001 or LMH0002 cable driver. Output SCO/SDO2
is multiplexed and can provide either a second serial data output or a serial data-rate clock output. Figure 3
shows the equivalent output circuit for SDO, SDO, SCO/SDO2, and SCO/SDO2.
The SCO_EN input controls the operating mode for the SCO/SDO2 output. When the SCO_EN input is high the
SCO/SDO2 output provides a serial data-rate clock. When SCO_EN is low, the SCO/SDO2 output provides
retimed serial data.
Both differential serial data outputs, SDO and SCO/SDO2, are muted when the OUTPUT MUTE input is a logic
low level. SCO/SDO2 also mutes when the Bypass mode is activated when this output is operating as the serial
clock output. When muted, SDO and SDO (or SDO2 and SDO2) will assume opposite differential output levels.
The CML serial data outputs are differential LVPECL compatible. These outputs have internal 50Ω pull-ups and
are suitable for driving AC or DC-coupled, 100Ω center-tapped, AC grounded or 100Ω un-center-tapped,
differentially terminated networks.
The Serial Data Clock/Serial Data 2 Output is controlled by the SCO_EN input and provides either a second
retimed serial data output or a low jitter differential clock output appropriate to the serial data rate being
processed. When operating as a serial clock output, the rising edge of the clock will be positioned within the
corresponding serial data bit interval within 10% of the center of the data interval.
Differential output SCO/SDO2 functions as the second serial data output when the SCO_EN input is a logic-low
level. This output functions as the serial data-rate clock output when the SCO_EN input is a logic-high level. The
SCO_EN input has an internal pull-down device and the default state of SCO_EN is low (serial data output 2
enabled). SCO/SDO2 is muted when the OUTPUT MUTE input is a logic low level. When the Bypass mode is
activated and this output is functioning as a serial clock output, the output will also be muted. If an unsupported
data rate is used while in Auto Bypass mode with this output functioning as a serial clock output, the output is
invalid.
The Serial Data Input Selector (SEL [1:0]) allows the user to select the active input channel. Table 1 shows the
input selected for a given state of SEL [1:0].
Table 1. Data Input Select Codes
SEL [1:0] CodeSelected Input
00SDI0
01SDI1
10SDI2
11SDI3
LOCK DETECT
The Lock Detect (LD) output, when high, indicates that data is being received and the PLL is locked. LD may be
connected to the OUTPUT MUTE input to mute the data and clock outputs when no data signal is being
received. Note that when the Bypass/Auto Bypass input is set high, Lock Detect will remain low. See Table 2.
OUTPUT MUTE
The OUTPUT MUTE input, when low, mutes the serial data and clock outputs. It may be connected to Lock
Detect or externally driven to mute or un-mute the outputs. If OUTPUT MUTE is connected to LD, then the data
and clock outputs are muted when the PLL is not locked. This function overrides the Bypass function: see
Table 2. OUTPUT MUTE has an internal pull-up device to enable the output by default.
BYPASS/AUTO BYPASS
The Bypass/Auto Bypass input, when high, forces the device to output the data without reclocking it. When this
input is low, the device automatically bypasses the reclocking function when the device is in an unlocked
condition or the detected data rate is a rate which the device does not support. Note that when the Bypass/Auto
Bypass input is set high, Lock Detect will remain low. See Table 2. BYPASS/AUTO BYPASS has an internal pulldown device.
Table 2. Control Functionality
LOCK DETECTOUTPUT MUTEBYPASS/AUTO BYPASSDEVICE STATUS
01XPLL unlocked, reclocker bypassed
110PLL locked to supported data rate, reclocker not bypassed
X0XOutputs muted
0LOCK DETECTXOutputs muted
1LOCK DETECT0PLL locked to supported data rate, reclocker not bypassed
SD
The SD output indicates that the LMH0036 is locked and processing SD data rates. It may be used to control
another device such as the LMH0002 cable driver. When this output is high it indicates that the data rate is 270
Mbps. The SD output is a registered function and is only valid when the PLL is locked and the Lock Detect
output is high. The SD output is undefined for a short time after lock detect assertion or de-assertion due to a
data change on the SDI input. See Figure 4 for a timing diagram showing the relationship between SDI, Lock
Detect, and SD.
= Acquisition Time, defined in the AC Electrical Characteristics Table
T1 = Time from Lock Detect assertion or deassertion until SD output is valid, typically 37ns (one 27 MHz clock period)
T2 = Time from SDI input change until Lock Detect de-assertion, 1 ms maximum. SD output is not valid during this time.
T
ACQ
T
1
T
1
T
ACQ
T
1
T
1
LMH0036
SNLS254B –MARCH 2008–REVISED APRIL 2013
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Figure 4. SDI, Lock Detect, and SD Timing
SCO_EN
Input SCO_EN enables the SCO/SDO2 differential output to function either as a serial data-rate clock or second
serial data output. SCO/SDO2 functions as a serial data-rate clock when SCO_EN is high. This pin has an
internal pull-down device. The default state (low) enables the SCO/SDO2 output as a second serial data output.
CRYSTAL OR EXTERNAL CLOCK REFERENCE
The LMH0036 uses a 27 MHz crystal or external clock signal as a timing reference input. A 27 MHz parallel
resonant crystal and load network may be connected to the XTAL IN/EXT CLK and XTAL OUT pins.
Alternatively, a 27 MHz LVCMOS compatible clock signal may be input to XTAL IN/EXT CLK. Parameters for a
suitable crystal are given in Table 3.
Frequency27 MHz
Frequency Stability±100 ppm @ recommended drive level
Operating ModeFundamental mode, Parallel Resonant
Load Capacitance20 pF
Shunt Capacitance7 pF
Series Resistance40Ω max.
Recommended Drive Level100 µW
Maximum Drive Level500 µW
Operating Temperature Range−10°C to +60°C
Figure 5 shows a application circuit for the LMH0036.
SNLS254B –MARCH 2008–REVISED APRIL 2013
BYPASS/AUTO BYPASS has an internal pulldown to enable Auto Bypass mode by default. This pin may be
pulled high to force the LMH0036 to bypass all data.
OUTPUT MUTE has an internal pullup to enable the outputs by default. This pin may be pulled low to mute the
outputs.
The XTAL IN/EXT CLK and XTAL OUT pins are shown with a 27 MHz crystal and the proper loading. The crystal
should match the parameters described in Table 3. Alternately, a 27MHz LVCMOS compatible clock signal may
be input to XTAL IN/EXT CLK.
The active high LOCK DETECT output provides an indication that proper data is being received and the PLL is
locked.
The SD output may be used to drive the SD/HD pin of an SDI cable driver (such as the LMH0002) in order to
properly set the cable driver’s edge rate for SMPTE compliance. It defaults to low when the LMH0036 is not
SCO_EN has an internal pulldown to set the second output (SCO/SDO2) to output data. This pin may be pulled
high to set the second output as a serial clock.
The external loop filter capacitor (between LF1 and LF2) should be 56 nF. This is the only supported value; the
loop filter capacitor should not be changed.
SEL0 and SEL1 have internal pulldowns to select the SDI0 input by default.
The inputs are LVPECL compatible. The LMH0036 has a wide input common mode range and in most cases the
input should be DC coupled. For DC coupling, the inputs must be kept within the common mode range specified
in DC ELECTRICAL CHARACTERISTICS.
Figure 6 shows an example of a DC coupled interface between the LMH0074 cable equalizer and the LMH0036.
The LMH0074 output common mode voltage and voltage swing are within the range of the input common mode
voltage and voltage swing of the LMH0036. All that is required is a 100Ω differential termination as shown. The
resistor should be placed as close as possible to the LMH0036 input. If desired, this network may be terminated
with two 50Ω resisters and a center tap capacitor to ground in place of the single 100Ω resistor.
The outputs are LVPECL compatible. SDO is the primary data output and SCO/SDO2 is a second output that
may be set as the serial clock or a second data output. Both outputs are always active. The LMH0036 output
should be DC coupled to the input of the receiving device as long as the common mode ranges of both devices
are compatible.
Figure 7 shows an example of a DC coupled interface between the LMH0036 and LMH0001 cable driver. All that
is required is a 100Ω differential termination as shown. The resistor should be placed as close to the LMH0302
input as possible. If desired, this network may be terminated with two 50Ω resisters and a center tap capacitor to
ground in place of the single 100Ω resistor.
The LMH0036 has multiple ground connections, however; the primary ground connection is through the large
exposed DAP. The DAP must be connected to ground for proper operation of the LMH0036.
Changes from Revision A (April 2013) to Revision BPage
•Changed layout of National Data Sheet to TI format .......................................................................................................... 12
LMH0036SQE/NOPBACTIVEWQFNRHS48250RoHS & GreenSNLevel-3-260C-168 HR-40 to 85XL036
(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.
Package Type Package
(1)
Drawing
Pins Package
Qty
Eco Plan
(2)
Lead finish/
Ball material
(6)
MSL Peak Temp
(3)
Op Temp (°C)Device Marking
(4/5)
(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 finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material 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.
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. The package thermal pad must be soldered to the printed circuit board for thermal and mechanical performance.
OPT 2
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48X (0.6)
48X (0.25)
44X (0.5)
EXAMPLE BOARD LAYOUT
WQFN - 0.8 mm max heightRHS0048A
PLASTIC QUAD FLATPACK - NO LEAD
( 5.1)
SYMM
48
1
37
36
(1.05) TYP
SYMM
(R0.05)
TYP
( 0.2) TYP
VIA
ALL AROUND
EXPOSED
METAL
12
0.07 MAX
13
49
(1.25)
TYP
(6.8)
(1.05)
TYP
LAND PATTERN EXAMPLE
EXPOSED METAL SHOWN
SCALE:12X
ALL AROUND
METAL EDGE
SOLDER MASK
OPENING
EXPOSED
METAL
(1.25) TYP
(6.8)
25
24
0.07 MIN
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
NON SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK
DEFINED
SOLDER MASK DETAILS
4214990/B 04/2018
NOTES: (continued)
4. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature
number SLUA271 (www.ti.com/lit/slua271).
5. Vias are optional depending on application, refer to device data sheet. If any vias are implemented, refer to their locations shown
on this view. It is recommended that vias under paste be filled, plugged or tented.
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EXAMPLE STENCIL DESIGN
WQFN - 0.8 mm max heightRHS0048A
PLASTIC QUAD FLATPACK - NO LEAD
48X (0.6)
48X (0.25)
44X (0.5)
SYMM
(R0.05) TYP
METAL
TYP
(0.625) TYP
48
1
49
(1.25)
TYP
37
36
(1.25)
TYP
(0.625) TYP
(6.8)
12
13
16X
( 1.05)
SYMM
(6.8)
24
25
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
EXPOSED PAD 49
68% PRINTED SOLDER COVERAGE BY AREA UNDER PACKAGE
NOTES: (continued)
6. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
SCALE:15X
4214990/B 04/2018
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