- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄98204 > TDA9209 (STMICROELECTRONICS) 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 PDF資料下載
參數(shù)資料
| 型號(hào)： | TDA9209 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封裝： | PLASTIC, SHRINK, DIP-24 |
| 文件頁(yè)數(shù)： | 20/22頁(yè) |
| 文件大?。?/td> | 1670K |
| 代理商： | TDA9209 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)當(dāng)前第20頁(yè)第21頁(yè)第22頁(yè)
TDA9209
7/22
4.10 Bandwidth Adjustment
An advanced feature: Bandwidth adjustment, is
implemented on the TDA9209.
For applications where rise/fall time >5.5ns, this
feature must not be used and the bandwidth has to
be set to 0 (dec) (register 13, see Table 1 on
page 15).
For applications where rise/fall time <5.5ns, this
feature offers several advantages:
– Depending on the external capacitive load and
on the peak-to-peak output voltage, this adjust-
ment avoids getting any slew-rate phenomenon.
– Electromagnetic radiation (EMI). Slowing down
the signal of rise/fall time will decrease the EMI
without significantly deteriorating the rise/fall
time of the CRT driver.
– Video signal response. Using this adjustment will
allow to optimize the high frequency transient
phenomenons.
– Still picture mode. In this mode, high video swing
is of greater interest than rise/fall time. The band-
width adjustment can be used to avoid any slew-
rate phenomenon at the CRT driver output and to
reduce EMI.
4.11 CRT Cathode Coupling
The powerfull multiplex capability of the TDA9209
allows to use the device with several kinds of CRT
cathode coupling.
AC coupling with DC restore (Figure 4)
In this mode the output DC level (VDC) is adjusted
simultaneously for the 3 channels from 0.5 V to
2.35 V via Register 6 (4 bit). The cut-off voltage is
programmed independently for each channel from
0.17 V to 4.6 V using registers 10, 11, 12 (8 bit
each, see Table 1 on page 15).
DC Coupling with cut-off controls on Video
Amplifier (with TDA9533/ 9530, Figure 5)
The functioning and programming of the TDA9209
are the same as for the previous mode, except for
the cut-off control which is now performed via the
Video amplifier cut-off input .
In AC coupling and DC coupling with cut-off con-
trol, bit 2, 3 and 4 in Register 9 must be set to 1.
DC Coupling Mode (Figure 6)
This is the most commonly used configuration en-
abling to build a powerful video system on a small
PCB Board and giving a substantial cost saving
compared with any other solution available on the
market.
The preamplifier outputs control directly the cut-off
levels.
The output DC level (VDC) is adjusted independ-
ently for each channel from 0.5 V to 2.5 V via reg-
isters 10, 11 and 12.
In DC coupling mode, bit 2 must be set to 1 and
bit3 to 0 in Register 9.
DC Coupling with feedback mode (Figure 7)
In this mode, the feedback voltage issued from the
cathode is sent to the TDA9209. This voltage is
compared to a reference from the cut-off DC level
DAC by the sample and hold circuit who also con-
trols the DC voltage of the feedback input in a
range of 0.5 V to 2.5 V.
Each channel is independently controlled via Reg-
isters 10, 11 and 12.
In DC coupling with feedback mode, bit 2 and bit 4
must be set to 0 in Register 9.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA9210 | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP20 |
| TDA9533 | 3 CHANNEL, VIDEO AMPLIFIER, PZFM15 |
| TDA9535L | 3 CHANNEL, VIDEO AMPLIFIER, PZIP11 |
| TDA9535 | 3 CHANNEL, VIDEO AMPLIFIER, PZIP11 |
| TDA9536 | 3 CHANNEL, VIDEO AMPLIFIER, PZIP11 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9210 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:12 ns TRIPLE-CHANNEL HIGH VOLTAGE VIDEO AMPLIFIER |
| TDA9302 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERTICAL DEFLECTION OUTPUT CIRCUIT |
| TDA9302H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERTICAL DEFLECTION OUTPUT CIRCUIT |
| TDA9309 | 功能描述:視頻 IC Vertical Deflection RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TDA9321 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled TV input processor |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。