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參數(shù)資料
| 型號： | CLC020BCQ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SMPTE 259M Digital Video Serializer with Integrated Cable Driver |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 14/15頁 |
| 文件大?。?/td> | 353K |
| 代理商： | CLC020BCQ |
Application Information
(Continued)
values. New layouts using the CLC020 will benefit from the
greatly reduced ancilliary component count and more com-
pact layout.
The CLC020 does not require external VCO filtering compo-
nents. The external VCO filtering components at pin 17 of
the GS9022 may remain connected to the CLC020 without
complications. It is suggested that these be removed from
the circuit board. The CLC020 uses pin 17 for its test pattern
generator enable function. You will find the TPG function
very useful when you make this change.
Remove the C
OSC
capacitor used by the GS9022 at pin 26.
The CLC020 uses pin 26 as the BIST pass/fail indicator
output. You may attach a LED as an indicator to this pin, if
desired. LED current should be limited to 10 mA maximum.
The same LED type and current limiting resistor shown in
Figure 8
at the Lock Detect output may be used for this
indicator function.
Remove any capacitor attached to pin 19. A capacitor at-
tached to pin 19 will cause distortion of the output V
level.
The former data rate setting resistor, R
, at pin 19 now
functions as the output level setting resistor, R
. It must be
changed to a 1.69 k
, 1% value for correct output level
setting.
The input series resistors and the P
risetime filter capaci-
tor used with the GS9022 are not needed for the CLC020.
These components should be removed from the circuit
board and the resistors replaced by short circuits (0
resis-
tors). These series resistors will increase input signal rise
and fall times if left on the board.
The CLC020 has current-mode serial cable driver outputs.
These outputs have very high internal generator resistance
as one would expect of a current source. Though these
current-mode outputs can produce the equivalent drive volt-
ages into the load, it is necessary to change and simplify the
typical GS9022 output circuit normally recommended for that
device. The output load resistors at pins 22 and 23 must be
changed to 75
, 1% values. These resistors become the
back-matching loads across which the CLC020’s outputs
develop drive voltage. The series back-matching resistors
used on the GS9022 should be removed and replaced with
short circuits. The risetime compensating capacitors across
these resistors should be removed.
Pin 28 on the CLC020 is V
and must be connected to the
negative supply or ground. On layouts designed to mount
the GS9022, the series R-C network connected to this pin
should be replaced by short circuits (0
resistors).
The pull-up resistor connected to the Lock Detect output, pin
14, should be removed. It may be replaced by a LED and
current limiting resistor connected to V
SS
if a visual lock
indicator is desired.
The CLC020 has an internal pull-down at the Sync Detect
Enable input and may be left unconnected in SMPTE video-
only applications.
The CLC020 has independent power supply pins for the
VCO, V
, pin 15 and V
, pin 16. The CLC020 has an
output driver negative supply, V
, at pin 21. The output
driver positive supply, V
, is pin 24 (as on the GS9022).
On new layouts, additional power supply filtering may be
added at these pins, if desired.
C
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| CLC020 | SMPTE 259M Digital Video Serializer with Integrated Cable Driver(SMPTE 259M數(shù)字視頻串行器帶集成電纜驅(qū)動器) |
| CLC020ACQ | SMPTE 259M Digital Video Serializer with Integrated Cable Driver |
| CLC021AVGZ-3.3 | SMPTE 259M Digital Video Serializer with EDH Generation and Insertion |
| CLC021AVGZ-5.0 | SMPTE 259M Digital Video Serializer with EDH Generation and Insertion |
| CLC021 | SMPTE 259M Digital Video Serializer with EDH Generation/Insertion(SMPTE 259M數(shù)字視頻串行器帶EDH發(fā)生/插入) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CLC020BCQ/NOPB | 功能描述:串行器/解串器 - Serdes RoHS:否 制造商:Texas Instruments 類型:Deserializer 數(shù)據(jù)速率:1.485 Gbit/s 輸入類型:ECL/LVDS 輸出類型:LVCMOS 輸入端數(shù)量:1 輸出端數(shù)量:20 工作電源電壓:2.375 V to 2.625 V 工作溫度范圍:0 C to + 70 C 封裝 / 箱體:TQFP-64 |
| CLC021 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SMPTE 259M Digital Video Serializer with EDH Generation and Insertion |
| CLC02-10N_-RC | 制造商:ALLIED 制造商全稱:Allied Components International 功能描述:Ceramic Core Laser Cut Chip Inductor |
| CLC02-12N_-RC | 制造商:ALLIED 制造商全稱:Allied Components International 功能描述:Ceramic Core Laser Cut Chip Inductor |
| CLC02-15N_-RC | 制造商:ALLIED 制造商全稱:Allied Components International 功能描述:Ceramic Core Laser Cut Chip Inductor |
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