- 您现在的位置：买卖IC网 > PDF目录30745 > LM2202M/NOPB (NATIONAL SEMICONDUCTOR CORP) 1 CHANNEL, VIDEO AMPLIFIER, PDSO20 PDF资料下载
参数资料
| 型号： | LM2202M/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO20 |
| 封装： | M20B |
| 文件页数： | 12/17页 |
| 文件大小： | 416K |
| 代理商： | LM2202M/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
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| LM336Z | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.49 V, PBCY3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2202MX | 功能描述:IC VIDEO AMP SYS 230MHZ 20-SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| LM2202N | 功能描述:IC VIDEO AMP SYSTEM 20-DIP RoHS:否 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| LM220K12 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| LM220K15 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| LM220K5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
发布紧急采购，3分钟左右您将得到回复。