- 您現在的位置：買賣IC網 > PDF目錄30745 > LM2202N/NOPB (NATIONAL SEMICONDUCTOR CORP) 1 CHANNEL, VIDEO AMPLIFIER, PDIP20 PDF資料下載
參數資料
| 型號： | LM2202N/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDIP20 |
| 封裝： | N20A |
| 文件頁數： | 12/17頁 |
| 文件大小： | 416K |
| 代理商： | LM2202N/NOPB |
Typical Performance Characteristics (V
CC = 12V, TA = 25C unless otherwise specified)
Circuit Description
Figure 2 shows a block diagram of the LM2202 video ampli-
fier along with contrast and brightness (black level) control.
Contrast control is a DC-operated attenuator which varies
the AC gain of the amplifier. Signal attenuation (contrast) is
achieved by varying the base drive to a differential pair and
thereby unbalancing the current through the differential pair.
As shown in
Figure 2, pin 20 provides a 5.3V bias voltage for
the positive input of the attenuator (pin 1). Pin 3 provides a
control voltage for the negative input (pin 2) of the attenuator.
The voltage at pin 3 varies as the voltage at the contrast con-
trol input (pin 8) varies thus providing signal attenuation. The
gain is maximum (0 dB attenuation) if the voltage at pin 8 is
4V and is minimum (maximum attenuation) if the voltage at
pin 8 is 0V. The 0V to 4V DC-operated drive control at pin 9
Quiescent Supply Current
vs Supply Voltage
DS012591-3
Attenuation vs Drive Voltage
DS012591-4
Contrast vs Frequency
DS012591-5
Drive vs Frequency
DS012591-6
Attenuation vs
Contrast Voltage
DS012591-7
www.national.com
4
相關PDF資料 |
PDF描述 |
|---|---|
| LM2202M/NOPB | 1 CHANNEL, VIDEO AMPLIFIER, PDSO20 |
| LM22672QMR-ADJ | 1.8 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| LM236ZT | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.49 V, PBCY3 |
| LM236DT | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.49 V, PDSO8 |
| LM236Z-AP | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.49 V, PBCY3 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM220K12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LM220K15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LM220K5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LM2-20V2-SI | 功能描述:基本/快動開關 Foot Switch RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| LM220Z | 制造商:SEOUL 制造商全稱:Seoul Semiconductor 功能描述:GREEN OVAL LAMP LED |
發布緊急采購，3分鐘左右您將得到回復。