NJM2561A LOW VOLTAGE VIDEO AMPLIFIER WITH LPF ■GENERAL 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. ■PACKAGE OUTLINE NJM2561AKG1 ■FEATURES ● Operating Voltage th ● 6 Order LPF ● 6dB Amplifier ● 75Ω Driver Circuit ● Power Save Circuit ● Bipolar Technology ● Package Outline 2.6 to 5.5V -33dB at 19MHz typ. ESON6 (1.6 x 1.6 x 0.4 mm ) ■PIN CONFIGURATION 1. Vsag 1 6 2 5 3 4 2. GND 3. Power Save 4. V+ 5. Vout 6. Vin ■BLOCK DIAGRAM V+ 6dB Vin 75Ω Driver LPF Vout CLAMP Vsag GND Power Save Ver.0.1 -1- NJM2561A ■ABSOLUTE MAXIMUM RATINGS (Ta=25°C) 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) ■ RECOMMENDED OPEARATING CONDITION (Ta=25°C) PARAMETER Operating Voltage SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT 2.6 3.0 5.5 V MIN. TYP. MAX. UNIT No Signal - 8.0 12.0 mA - 30 50 µA Vopr + ■ELECTRICAL CHARACTERISTICS (V =3.0V,RL=150Ω,Ta=25°C) PARAMETER Operating Current SYMBOL ICC TEST CONDITION Operating Current at Power Save Isave No Signal, Power Save Mode Maximum Output Voltage Swing Vom f=100kHz, Sine Signal, THD=1% 2.2 2.5 - Vp-p Gv Vin=100kHz, 1.0Vp-p, Sine Signal 6.1 6.5 6.9 dB Gfy4.5M Vin=4.5MHz/100kHz, 1.0Vp-p -0.6 -0.1 0.4 Gfy19M Vin=19MHz/100kHz, 1.0Vp-p - -33 -23 Voltage Gain Low Pass Filter Characteristic dB Differential Gain DG Vin=1.0Vp-p, 10step Video Signal - 0.5 - % Differential Phase DP Vin=1.0Vp-p, 10step Video Signal - 0.5 - deg S/N Ratio SNv - 65 - dB - -50 - dB 1.8 - V 0 - 0.3 2nd. Distortion Hv Vin=1.0Vp-p, RL=75Ω 100% White Video Signal, f= 100kHz to 6MHz Vin=1.0Vp-p, 3.58MHz, Sine Signal, RL=75Ω SW Change Voltage High Level VthPH Active SW Change Voltage Low Level VthPL Non-active ■CONTROL TERMINAL PARAMETER Power Save -2- STATUS NOTE H Power Save: OFF(Active) L Power Save: ON (Mute) OPEN Power Save: ON (Mute) + V NJM2561A ■TEST CIRCUIT output 75Ω 75Ω input 0.1µF 0.1µF 75Ω 10µF 33µF 6 5 4 Vin Vout V+ Vsag GND Power Save 1 2 3 33µF ■ APPLICATION CIRCUIT (1) Standard circuit (2) SAG correction unused circuit output output 75Ω 75Ω 470µF input 0.1µF 0.1µF C1 75Ω 6 10µF 5 4 + + input 0.1µF 0.1µF 75Ω 10µF 6 5 4 Vin Vout V+ Vin Vout V Vsag GND Power Save Vsag GND Power Save 1 2 3 1 2 3 C2 -3- NJM2561A ■ 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 470µF or more. Refer to Figure 3 and Figure 4. Figure 1 Figure 2 C1: 100µF, C2: 22µF Input Signal: 1Vp-p, White → Black Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor C1: 100µF, C2: 22µF Input Signal: 1Vp-p, Black → White Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor Figure 3 Output coupling capacitor:470µF Input Signal: 1Vp-p, White → Black Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor -4- Figure 4 Output coupling capacitor:470µF Input Signal: 1Vp-p, Black → White Waveform Orange: Vout Pin Waveform Green: waveform after output capacitor 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-