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| NJM2581 DUAL SUPPLY WIDE BAND 3ch VIDEO AMPLIFIER s GENERAL DESCRIPTION The NJM2581 is a dual supply voltage wide band 3ch video amplifier. It is suitable for Y, Pb, and Pr signal because frequency range is 50MHz. The NJM2581 is suitable for Set Top Box, AV amplifier, and other high quality AV systems. s PACKAGE OUTLINE NJM2581D s FEATURES q Operating Voltage 4.5 to 5.5V q Wide frequency range 50MHz at 0dB typ. q Internal 6dB Amplifier q Internal 75Driver Circuit (2-system drive) q Power Save Circuit q Bipolar Technology q Package Outline DIP14, DMP14 s BLOCK DIAGRAM NJM2581M VIN1 1 6dB AMP 75 Driver 14 V+ 1 BIAS VEE1 2 13 VOUT1 VIN2 3 6dB AMP 75 Driver 12 V+ 2 BIAS VEE2 4 11 VOUT2 VIN3 5 6dB AMP 75 Driver 10 V+ 3 BIAS VEE3 6 9 VOUT3 PowerSave 7 REF 8 GND Ver.7 -1- NJM2581 s ABSOLUTE MAXIMUM RATINGS PARAMETERS Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL +/V PD Topr Tstg RATINGS 6.0 (DIP) 500 (DMP) 350 -40 to +85 -40 to +125 (Ta=25C) UNIT V mW C C ( V =5.0V, RL=150, Ta=25C) TEST CONDITION No signal No signal, Power Save Vin=1kHz,Sin signal, THD=1%, Vin=1MHz, 1.0Vp-p Sin signal Vin=50MHz / 1MHz, 1.0Vp-p, Sin signal Vin=4.43MHz, 1.0Vp-p, Sin signal Vin=50MHz, 1.0Vp-p, Sin signal Vin=1.0Vp-p 10step Video signal *1 Vin=1.0Vp-p 10step Video signal *1 Vin=1.0Vp-p, 100% White Video signal *1 IC Operating IC Waiting MIN. 7.4 6.0 2.0 0 TYP. 23.0 8.0 6.4 50 0 -60 -40 0.3 0.3 70 MAX. 33.0 1.2 6.8 -50 V + + s ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Operating Current ICC Operating Current Isave (Power Save) Maximum Output Voltage Vom Voltage Gain Gv Band Width f Frequency Characteristic Gf Cross talk 1 CTB1 Cross talk 2 CTB2 Differential Gain DG Differential Phase DP S/N Power Save Switch Change Voltage H Level Power Save Switch Change Voltage L Level *1: Refer to TEST CIRCUIT 2. s MODE SWITCH FUNCTION PIN Power Save MODE H L OPEN SNv VthPH VthPL UNIT mA mA Vp-p dB MHz dB dB dB % deg dB V V 0.6 NOTES Power Save : OFF Power Save : ON Power Save : ON Ver.7 -2- NJM2581 s EQUIVALENT CIRCUIT PIN No. PIN NAME FUNCTION INSIDE EQUIVALENT CIRCUIT V+ 1 3 5 VIN1 VIN2 VIN3 Input VIN1 VIN2 VIN3 100 20K V- V+ V+ 13 11 9 VOUT1 VOUT2 VOUT3 Output VOUT1 VOUT2 VOUT3 5.5K V- V- PowerSave 30K 7 PowerSave Power Save V- 50K 14 12 10 2 4 6 8 V1 + V2 + V3 VEE1 VEE2 VEE3 GND + V+ V- GND Ver.7 -3- NJM2581 s TEST CIRCUIT 1 +5V + 47uF 0.1uF 75 75 0.01uF 10uF 0.01uF 0.1uF 75 75 10uF 0.01uF 0.1uF 75 75 10uF + + + 14 V+1 13 VOUT 12 V+2 11 VOUT 10 V+ 3 9 VOUT 8 GND VIN1 1 + VEE1 2 VIN2 3 + VEE2 4 VIN3 5 + VEE3 6 PowerSave 7 0.01uF 3.3uF 0.01uF 3.3uF 0.01uF 3.3uF 50 0.1uF 50 0.1uF 50 0.1uF -5V + 47uF s TEST CIRCUIT 2 +5V + 47uF 0.1uF 75 75 0.01uF 10uF 0.01uF 0.1uF 75 75 10uF 0.01uF 0.1uF 75 75 10uF + + + 14 V+1 13 VOUT 12 V+2 11 VOUT 10 V+3 9 VOUT 8 GND VIN1 1 + VEE1 2 VIN2 3 + VEE2 4 VIN3 5 + VEE3 6 PowerSave 7 0.01uF 3.3uF 0.01uF 3.3uF 0.01uF 3.3uF 50 0.1uF 50 0.1uF 50 0.1uF -5V + 47uF Ver.7 -4- NJM2581 s APPLICATION CIRCUIT +5V + 47uF 75 75 0.1uF 0.1uF 75 75 0.1uF 75 75 14 V+1 13 VOUT 12 V+2 11 VOUT 10 V+3 9 VOUT 8 GND VIN1 1 + VEE1 2 VIN2 3 + VEE2 4 VIN3 5 + VEE3 6 PowerSave 7 0.01uF 10uF 0.01uF 10uF 0.01uF 10uF 75 0.1uF 75 0.1uF 75 0.1uF -5V + 47uF Ver.7 -5- NJM2581 s TYPICAL CHARACTERISTICS 10 5.0 Voltage Gain Gv(dB) 0.0 -5.0 -10 -15 -20 3 100 10 1ch 2ch 3ch Voltage Gain vs. Frequency 40.0 35.0 30.0 25.0 20.0 15.0 Operating Current vs. Supply Voltage Operating Current Icc(mA) 1 10 6 10 10 6 100 10 6 10.0 3.0 3.5 4.0 4.5 5.0 + 5.5 6.0 6.5 Frequency (Hz) Supply Voltage V (V) Operating Current at Standby State vs. Supply Voltage Operating Current at Standby State Isave(mA) 2.0 Maximum Output Voltage Swing vs. Supply Voltage (BIAS Type Input) Maximum Output Voltage Swing Vom(Vpp) 14.0 12.0 10.0 8.0 6.0 4.0 2.0 3.0 Total Harmonic Distortion=1%, 1kHz 1ch 2ch 3ch 1.5 1.0 0.5 0.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 3.5 4.0 4.5 5.0 + 5.5 6.0 6.5 Supply Voltage V+ (V) Supply Voltage V (V) Voltage Gain vs. Supply Voltage 1Vpp, 1MHz sinewave signal input 1ch 2ch 3ch Gain Frequency Characteristics vs. Supply Voltage Gain Frequency Characteristics Gf(dB) 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 3.0 3.5 4.0 4.5 5.0 + 8.0 7.5 Voltage Gain Gv(dB) 7.0 6.5 6.0 5.5 5.0 3.0 1Vpp, 50MHz/1MHz 1ch 2ch 3ch 3.5 4.0 4.5 5.0 + 5.5 6.0 6.5 5.5 6.0 6.5 Ver.7 -6- Supply Voltage V (V) Supply Voltage V (V) NJM2581 s TYPICAL CHARACTERISTICS Differential Gain vs. Supply Voltage 1Vpp, 10step video signal input 4.0 3.5 Differential Gain DG(%) 3.0 2.5 2.0 1.5 1.0 0.5 1ch 2ch 3ch Channel Gain Difference vs. Supply Voltage 0.6 Channel Gain Difference dGv(dB) 0.4 0.2 0.0 -0.2 -0.4 -0.6 3.0 3.5 4.0 4.5 5.0 + 5.5 6.0 6.5 0.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Supply Voltage V (V) Supply Voltage V+ (V) Differential Phase vs. Supply Voltage 1Vpp, 10step video signal input 4.0 3.5 Differential Phase DP(deg) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 1ch 2ch 3ch Cross Talk 1 vs. Supply Voltage 1Vpp, 4.43MHz sinewave signal input -40.0 -45.0 Cross Talk 1 CTB1(dB) -50.0 -55.0 -60.0 -65.0 -70.0 3.0 IN1OUT2 IN1OUT3 IN2OUT1 IN2OUT3 IN3OUT1 IN3OUT2 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Supply Voltage V+ (V) Supply Voltage V+ (V) Cross Talk 2 vs. Supply Voltage 1Vpp, 50MHz sinewave signal input -20.0 -25.0 Cross Talk 2 CTB2(dB) -30.0 -35.0 -40.0 -45.0 -50.0 3.0 IN1OUT2 IN1OUT3 IN2OUT1 IN2OUT3 IN3OUT1 IN3OUT2 Signal to Noise Retio vs. Supply Voltage 100.0 Signal to Noise Retio SNv(dB) 90.0 80.0 70.0 60.0 50.0 40.0 3.0 1.0Vpp, 100% white video signal input 1ch 2ch 3ch 3.5 4.0 4.5 5.0 5.5 6.0 6.5 3.5 4.0 4.5 5.0 + 5.5 6.0 6.5 Supply Voltage V+ (V) Supply Voltage V (V) Ver.7 -7- NJM2581 s TYPICAL CHARACTERISTICS PowerSave Switching Voltage vs. Supply Voltage PowerSave Switching Voltage VthP(V) 2.0 VthPH VthPL 1.5 1.0 0.5 0.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Supply Voltage V+ (V) [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. Ver.7 -8- |
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