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| NJM2561A LOW VOLTAGE VIDEO AMPLIFIER WITH LPF sGENERAL DESCRIPTION The NJM2561A is a low voltage single video amplifier with low pass filter. The NJM2561A features low power and small package. It is suitable for any video application. sFEATURES q Operating Voltage th q 6 Order LPF q 6dB Amplifier q 75 Driver Circuit q Power Save Circuit q Bipolar Technology q Package Outline sPACKAGE OUTLINE NJM2561AKG1 2.6 to 5.5V -33dB at 19MHz typ. ESON6 (1.6 x 1.6 x 0.4 mm ) sPIN CONFIGURATION 1. Vsag 1 2 3 6 5 4 2. GND 3. Power Save 4. V+ 5. Vout 6. Vin sBLOCK DIAGRAM V+ 6dB 75 Driver Vin CLAMP LPF Vout Vsag GND Power Save Ver.0.1 -1- NJM2561A sABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL + RATINGS UNIT Supply Voltage V 7.0 V Note1 Power Dissipation PD TBD mW Operating Temperature Range Topr -40 to +85 C Storage Temperature Range Tstg -40 to +125 C (Note1) At on a board of EIA/JEDEC specification. (101.5 x 114.5 x 1.6mm 2 layers, FR-4) s RECOMMENDED OPEARATING CONDITION (Ta=25C) PARAMETER Operating Voltage SYMBOL Vopr + TEST CONDITION MIN. 2.6 TYP. 3.0 MAX. 5.5 UNIT V sELECTRICAL CHARACTERISTICS (V =3.0V,RL=150,Ta=25C) PARAMETER Operating Current Operating Current at Power Save Maximum Output Voltage Swing Voltage Gain Low Pass Filter Characteristic Differential Gain Differential Phase S/N Ratio 2nd. Distortion SW Change Voltage High Level SW Change Voltage Low Level sCONTROL TERMINAL PARAMETER Power Save STATUS H L OPEN Power Save: OFF(Active) Power Save: ON (Mute) Power Save: ON (Mute) NOTE SYMBOL ICC Isave Vom Gv Gfy4.5M Gfy19M DG DP SNv Hv VthPH VthPL TEST CONDITION No Signal No Signal, Power Save Mode f=100kHz, Sine Signal, THD=1% Vin=100kHz, 1.0Vp-p, Sine Signal Vin=4.5MHz/100kHz, 1.0Vp-p Vin=19MHz/100kHz, 1.0Vp-p Vin=1.0Vp-p, 10step Video Signal Vin=1.0Vp-p, 10step Video Signal Vin=1.0Vp-p, RL=75 100% White Video Signal, f= 100kHz to 6MHz Vin=1.0Vp-p, 3.58MHz, Sine Signal, RL=75 Active Non-active MIN. 2.2 6.1 -0.6 1.8 0 TYP. 8.0 30 2.5 6.5 -0.1 -33 0.5 0.5 65 -50 MAX. 12.0 50 6.9 0.4 -23 V + UNIT mA A Vp-p dB dB % deg dB dB V 0.3 -2- NJM2561A sTEST CIRCUIT output 75 input 0.1F 0.1F 75 33F 10F 75 6 Vin Vsag 1 33F 5 Vout GND 2 4 V+ Power Save 3 s APPLICATION CIRCUIT (1) Standard circuit (2) SAG correction unused circuit output output 75 input 0.1F C1 75 470F input 0.1F 0.1F 75 10F + 0.1F 75 10F 6 Vin Vsag 1 C2 5 Vout GND 2 4 V + 6 Vin Vsag 1 5 Vout GND 2 4 V+ Power Save 3 Power Save 3 -3- NJM2561A s INSTRUCTIONS AND DIRECTIONS FOR USE (1) Standard circuit The SAG correction circuit reduces output coupling capacitor values. However, this circuit may cause to SAG deterioration, and lose synchronization by luminance fluctuation. Checking the waveform containing a lot of low frequency components like a bounce waveform (Worst condition waveform of SAG). Refer to Figure 1 and Figure 2. (2) SAG correction unused circuit To stabilize the synchronized signal, we recommend this circuit. Connect the coupling capacitor after connecting the Vout pin and Vsag pin. The recommended value is 470F or more. Refer to Figure 3 and Figure 4. Figure 1 C1: 100F, C2: 22F Input Signal: 1Vp-p, White Black Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor Figure 2 C1: 100F, C2: 22F Input Signal: 1Vp-p, Black White Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor Figure 3 Output coupling capacitor:470F Input Signal: 1Vp-p, White Black Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor Figure 4 Output coupling capacitor:470F Input Signal: 1Vp-p, Black White Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor -4- NJM2561A [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. -5- |
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