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參數(shù)資料
| 型號： | LM2485NA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費家電 |
| 英文描述： | RES 9.1 OHM 1/2W 5% CARBON FILM |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 858K |
| 代理商： | LM2485NA |
LM2485
220V Triple Bias Clamp with G1 Blank Amplifier
General Description
The LM2485 is a triple channel clamp amplifier used to DC
restore the AC coupled outputs of a DTV CRT driver and for
cut-off adjustment. The LM2485 also has an integrated
blanking amplifier that can be used to drive the G1 grid of a
CRT negative for vertical retrace blanking. The blanking
output has a selectable pulse amplitude of either 20V
P-P
or
40V
P-P
via the Pin 13 option. The blanking input pulse can
be generated from a vertical flyback pulse or by a microcon-
troller.
The LM2485 can operate with a V
CC
supply of up to 220V
and a V
BB
supply of either 8V or 12V. This V
option,
selectable via the Pin 12 option, ensures the LM2485 is
compatible with any National Semiconductor DTV CRT
driver sharing the same operating voltages in the applica-
tion.
The IC is packaged in an industry standard 24-lead molded
plastic dual-in-line package to meet high voltage spacing
requirements.
Features
n
V
CC
capable of up to 220V
n
V
BB
selectable to 8V or 12V via Pin 12 option
n
Wide bias output voltage range of over 100V
n
Inverted output pulse suitable for G1 blanking,
selectable to 20V
P-P
or 40V
P-P
via Pin 13 option
Applications
n
AC coupled CRT applications using DTV formats up to
1080i
n
Well-matched to the NSC LM12XX Family of
Preamplifiers and LM242X/3X/5X Family of DTV CRT
Drivers
Pinout and Internal Block Diagram
20103433
FIGURE 1. Top View
Order Number LM2485NA
See NS Package Number N24C
December 2004
L
2004 National Semiconductor Corporation
DS201034
www.national.com
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| LM2485NA/NOPB | 功能描述:IC TRIPLE BIAS CLAMP 220V 24-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7（矩陣） 接口:串行 數(shù)字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-QSOP 包裝:帶卷 (TR) |
| LM248D | 功能描述:運算放大器 - 運放 Quad Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM248DE4 | 功能描述:運算放大器 - 運放 Quadruple Oper Amplifier RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM248DG4 | 功能描述:運算放大器 - 運放 Quad Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM248DR | 功能描述:運算放大器 - 運放 Quadruple Oper Amplifier RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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