Designated client product This product will be discontinued its production in the near term. And it is provided for customers currently in use only, with a time limit. It can not be available for your new project. Please select other new or existing products. For more information, please contact our sales office in your region. New Japan Radio Co.,Ltd. www.njr.com NJM2207 VIDEO SUPER IMPOSER PACKAGE OUTLINE GENERAL DESCRIPTION The NJM2207 is video signal superimposer, with synchronous separation circuit, vertical sinchronous reproduce circuit and two video high performance switches for switching from video signal to character signal and background signal. The NJM2207 is suitable for simply indicating the date time, TV channel and others. FEATURES Operating Voltage (+4.75V to +13V) With Synchronous Separation Circuit With Vertical Synchronous Reproduce Circuit Package Outline DIP14, DMP14, ZIP16 Bipolar Technology NJM2207D NJM2207S (DIP14) (ZIP16) NJM2207M (DMP14) RECOMMENDED OPERATING CONDITION Operating Voltage 4.75 to 13V ABSOLUTE MAXIMUM RATINGS PARAMETER (Ta=25C) SYMBOL RATINGS UNIT 17 V + Supply Voltage V Power Dissipation PD (ZIP16) 500 mW (DIP14) 700 mW (DMP14) 300 mW Operating Temperature Range Topr -40 to +85 C Storage Temperature Range Tstg -40 to +125 C (Ta=25C, V+=5V) ELECTRICAL CHARACTERISTICS PARAMETER Operating Current SYMBOL TEST CONDITION ICC MIN. TYP. MAX. UNIT - 6.5 9 mA Video Signal Processing Section (Video Input 2VPP, Source Resistance=75) OFF-SET Voltage (Back-ground Input) VBOS Cross Voltage In Ext.10k Resistor - - 0.1 V OFF-SET Voltage (Char. Input) VCOS Cross Voltage In Ext.10k Resistor - - 0.1 V OFF-Voltage (Background Cont. Input) VBL - - 0.4 V OFF-Voltage (Char. Cont. Input) VCL - - 0.4 V ON-Voltage (Background Cont. Input) VBH 2.0 - - V ON-Voltage (Char. Cont. Input) VCH Transfer Gain GV 2.0 - - V RL=5k -1 - +1 dB dB Frequency Response Gf f=10MHz,RL=5k - -0.2 - Crosstalk In Each Signal C Video Input (f=3.58MHz) - 50 - Background Input (f=3.48MHz) Char. Input (f=3.68MHz) Each Signal. is Sine-Wave RL=5k Video Differential Phase DP RL=5k - - 3 Deg Video Differential Gain DG RL=5k - - 3 % Ver.2006-02-17 -1- NJM2207 ELECTRICAL CHARACTERISTICS SYNC. SEPATION SECTION PARAMETER (Ta=25C, V+=5V) SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Sync. Sepa. Input Threshold Voltage VISP Source Resistance Rg=75 100 140 180 mV H-Sync. High Level VHH1 RL=100k Pin 3 (13) 4.0 - - V H-Sync. High Level VHH2 RL=2.2k Pin 3 (13) 3.6 4.1 - V H-Sync. Low Level VHL RL=2.2k Pin 3 (13) - - 0.1 V H-Sync. High Level VHH RL=100k Pin 4 (14) 4.9 - - V H-Sync. Low Level VHL RL=100k Pin 4 (14) - - 0.3 V V-Sync. High Level VVH1 RL=100k Pin 7 (2) 4.0 - - V V-Sync. High Level VVH2 RL=10k Pin 7 (2) 3.6 4.1 - V V-Sync. Low Level VVL RL=10k Pin 7 (2) - - 0.1 V V-Sync. High Level VVH RL=100k Pin 9 (4) 4.9 - - V V-Sync. Low Level VVL RL=100k Pin 9 (4) - - 0.3 V Threshold High Level VVTH Pin 5 Input Voltage (1) 1.9 2.1 2.3 V Threshold Low Level VVTL Pin 5 Input Voltage (1) 1.1 1.3 1.5 V Schmitt Trigger (Note) : ( ) to DIP-14/DMP-14 TEST CIRCUIT -2- Ver.2006-02-17 NJM2207 TYPICAL APPLICATION Note 1: Pin Connection to ZIP-16 (Pin 2, Pin 15: NC). ( ) to DIP-14/DMP-14 Note 2: Syn. Sepa. Input Threshold voltage increases 40mV (typ.) when putting 1M in to Pin 1 (Pin 12). Ver.2006-02-17 -3- NJM2207 PRINCIPEL OF CHARACTER SUPERIMPOSER Basic principle is shown at Fig.1. Usual TV has video (composite) signal output and input terminals to connect VCR or others. There is all information about picture on video composite signal (Ref. to Fig. 2). Its time signal of horizontal and vertical synchronous signal indicates the brighten place of TV tube. For brightening TV tube regardless video signal, the video input signal has to be switched to DC level (luminance level) on that scanning time. On this method, character is shown with background of usual picture. Fig.1 Principle of Character Superimposer Fig.2 Composite Video Signal -4- Ver.2006-02-17 NJM2207 CIRCUIT CONFIGURATION Date superimposer circuit configuration on TV is shown at Fig. 3. The NJM2207 includes video switches whith convert, usual video signal (horizontal and vertical synchronous signal, video) to signal, of superimposed character given by character generator. Fig.3 Typiclal circuit of date superimposer Ver.2006-02-17 -5- NJM2207 APPLICATION This IC requires 1M resistance between INPUT and GND pin for clamp type input since the minute current causes an unstable pin voltage. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -6- Ver.2006-02-17