tda9981bhl NXP Semiconductors, tda9981bhl Datasheet - Page 37
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tda9981bhl
Manufacturer Part Number
tda9981bhl
Description
Hdmi Transmitter Up To 150 Mhz Pixel Rate With 3 ? 8-bit Video Inputs And 4 ? I 2s-bus With S/pdif
Manufacturer
NXP Semiconductors
Datasheet
1.TDA9981BHL.pdf
(41 pages)
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NXP Semiconductors
TDA9981B_1
Product data sheet
16.4 Reflow soldering
Key characteristics in reflow soldering are:
Table 27.
Table 28.
Moisture sensitivity precautions, as indicated on the packing, must be respected at all
times.
Studies have shown that small packages reach higher temperatures during reflow
soldering, see
Package thickness (mm)
< 2.5
Package thickness (mm)
< 1.6
1.6 to 2.5
> 2.5
•
•
•
2.5
Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see
reducing the process window
Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak
temperature is high enough for the solder to make reliable solder joints (a solder paste
characteristic). In addition, the peak temperature must be low enough that the
packages and/or boards are not damaged. The peak temperature of the package
depends on package thickness and volume and is classified in accordance with
Table 27
SnPb eutectic process (from J-STD-020C)
Lead-free process (from J-STD-020C)
and
Figure
28
23.
Rev. 01 — 4 July 2008
Package reflow temperature ( C)
Volume (mm
< 350
235
220
Package reflow temperature ( C)
Volume (mm
< 350
260
260
250
3
3
)
)
Figure
350 to 2000
260
250
245
150 MHz pixel rate HDMI transmitter
23) than a SnPb process, thus
220
220
350
TDA9981B
> 2000
260
245
245
© NXP B.V. 2008. All rights reserved.
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