TDA9899HN/V2,551 NXP Semiconductors, TDA9899HN/V2,551 Datasheet - Page 97
TDA9899HN/V2,551
Manufacturer Part Number
TDA9899HN/V2,551
Description
IC IF PROCESSOR MULTISTD 48HVQFN
Manufacturer
NXP Semiconductors
Datasheet
1.TDA9899HLV2151.pdf
(103 pages)
Specifications of TDA9899HN/V2,551
Function
IF Processor
Rf Type
ATV, DVB, FM
Package / Case
48-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935282856551
TDA9899HN/V2-S
TDA9899HN/V2-S
TDA9899HN/V2-S
TDA9899HN/V2-S
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NXP Semiconductors
16. Soldering
TDA9899_3
Product data sheet
16.2.1 Soldering by dipping or by solder wave
16.2.2 Manual soldering
16.3.1 Reflow soldering
16.1 Introduction
16.2 Through-hole mount packages
16.3 Surface mount packages
There is no soldering method that is ideal for all surface mount IC packages. Wave
soldering can still be used for certain surface mount ICs, but it is not suitable for fine pitch
SMDs. In these situations reflow soldering is recommended.
Typical dwell time of the leads in the wave ranges from 3 seconds to 4 seconds at 250 C
or 265 C, depending on solder material applied, SnPb or Pb-free respectively.
The total contact time of successive solder waves must not exceed 5 seconds.
The device may be mounted up to the seating plane, but the temperature of the plastic
body must not exceed the specified maximum storage temperature (T
printed-circuit board has been pre-heated, forced cooling may be necessary immediately
after soldering to keep the temperature within the permissible limit.
Apply the soldering iron (24 V or less) to the lead(s) of the package, either below the
seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is
less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is
between 300 C and 400 C, contact may be up to 5 seconds.
Key characteristics in reflow soldering are:
•
•
•
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 60
and
61
Rev. 03 — 15 January 2008
Multistandard hybrid IF processing including car mobile
Figure
52) than a PbSn process, thus
stg(max)
TDA9899
© NXP B.V. 2008. All rights reserved.
). If the
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