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ver.3 NJM41031 - 1 - video amplifier with lpf q general description q package outline the NJM41031 is a video amplifier contained lpf circuit. internal 75 ? driver is easy to connect tv monitor directly. corresponds to the ac coupling and dc coupling. the NJM41031 features low power and small package, and is suitable for low power design on downsizing. * when coupled dc, 0.4v typ. output is always. q features o operating voltage 4.5 to 5.5v o internal lpf -40db at 108mhz typ. o 6db amplifier o 75 ? driver circuit o power save circuit o cmos technology o package outline sot-23-6 q pin configuration q block diagram sot-23-6 1. power save 2. vout 3. vsag 4. vin 5. gnd 6. v + 1 2 3 4 5 6 NJM41031f1 cla m p 75w driver vin v + vout vsag power save gnd lpf 6db 4 6 1 3 5 2
NJM41031 - 2 - q absolute maximum ratings (ta=25 c) parameter symbol ratings unit supply voltage v + 7.0 v power dissipation p d 405(sot23-6) note1 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. (114.3 x 76.2 x 1.6mm 2 layers, fr-4) q recommended opearating condition (ta=25 c) parameter symbol test condition min. typ. max. unit operating voltage vopr 4.5 5.0 5.5 v q electrical characteristics (v + =5.0v,r l =150 ? ,ta=25 c) parameter symbol test condition min. typ. max. unit operating current i cc no signal - 20 25 ma operating current at power save isave no signal, power save mode - 45 70 a maximum output voltage swing vom f=100khz,thd=1% 2.2 2.5 - vp-p voltage gain gv vin=100khz, 1.0vp-p, input sine signal 5.6 6.0 6.4 db gfy6.75m vin=6.75mhz/100khz, 1.0vp-p -1.0 0 1.0 low pass filter characteristic gfy108m vin=108mhz/100khz, 1.0vp-p - -40 -23 db differential gain dg vin=1.0vp-p, 10step video signal - 0.5 - % differential phase dp vin=1.0v p-p, 10step video signal - 0.5 - deg s/n ratio snv vin=1.0vp-p, r l =75 ? 100% white video signal, 100khz to 6mhz - 75 - db sw change voltage high level vthph active 1.8 - v + sw change voltage low level vthpl non-active 0 - 0.3 v q control terminal parameter status note h power save: off l power save: on (mute) power save open power save: on (mute)
NJM41031 - 3 - q test circuit 22uf output + + 100uf 75 ? input 75 ? + 0.1u 10uf 0.1uf + 1 2 3 6 5 4 v+ gnd vin power save vout vsag
NJM41031 - 4 - q application circuit (1) standard circuit (2) sag correction unused circuit (3) two-line driving circuit (1) standard circuit this circuit is for a portable equipment of small mounting space. the sag correction reduces output coupling capacitor values. however, this circuit may cause to sag deterioration , and lose synchronization by luminance fluctuation. adjust the c1 value, checking the wa veform containing a lot of low frequency components like a bounce waveform (worst condition waveform of sag). change the capacitor of c1 into a large value to improve sag. (2) sag correction unused circuit we recommend this circuit when there is no space limitation. connect the coupling capacitor after connecting the vout pi n and vsag pin. the recommended value is 470f or more. (3) two-line driving circuit this circuit drives two-line of 150 ? . however, it may cause to lose synchronization by an input signal of large apl change (100% white signals more than 1vp-p). confirm the large apl change waveform (100% white signals more than 1vp-p) and evaluate sufficiently. inp ut 75 ? + 0.1u output + 470uf 75 ? 10uf 0.1uf + 1 2 3 6 5 4 v+ gnd vin power save vou t vsag input 75 ? + 0.1u output 1 + 470uf 75 ? 10uf 0.1uf + 1 2 3 6 5 4 v+ gnd vin power save vou t vsag output 2 75 ? 22uf output + + 100uf 75 ? input 75 ? + 0.1u 10uf 0.1uf + 1 2 3 6 5 4 v+ gnd vin power save vout vsag c1
NJM41031 - 5 - q application circuit 1 (in case dc-coupling, 1-drive circuit) q application circuit 2 (in case dc-coupling, 2-drive circuit) note) 0.4v typ. is always output from vout. output 75 ? inp ut 75 ? + 0.1u 10uf 0.1uf + 1 2 3 6 5 4 v+ gnd vin power save vou t vsag inp ut 75 ? + 0.1u output 1 75 ? 10uf 0.1uf + 1 2 3 6 5 4 v+ gnd vin power save vout vsag output 2 75 ?
NJM41031 - 6 - q terminal description pin no. symbol voltage equivalent circuit 1 power save - 2 vout 0.4v 3 vsag 0.4v 4 vin 1.7v 5 gnd - 6 v + - 32kohm 48kohm v+ v+ v+ v+ v+ v+ v+
ver.2 NJM41031 - 7 - q typical characteristics 0 10 20 30 0123456 operating current [ma] supply voltage [v] operating current vs. supply voltage 0 20 40 60 4.0 4.5 5.0 5.5 6.0 operating current at power save mode [ua] supply voltage [v] operating current at power save mode vs. supply voltage 2.00 2.50 3.00 3.50 4.00 4.04.55.05.56.0 maximam output voltage swing [v] supply voltage [v] maximam output voltage swing vs. supply voltage total harmonic distotion=1%, 100khz 5.50 6.00 6.50 4.04.55.05.56.0 voltage gain [db] supply voltage [v] voltage gain vs. supply voltage 1.0vpp, 100khz, sine signal input -1.0 -0.5 0.0 0.5 1.0 4.0 4.5 5.0 5.5 6.0 low pass filter charactrestic [db] supply voltage [v] low pass filter charactrestic vs. supply voltage 1.0vpp, 6.75m/100khz, sine signal input gain vs. freqency v+=5v ta=25 o c vin=1.0vpp sine signal input -50 -40 -30 -20 -10 0 10 0.1 1 10 100 freqency [mhz] gain [db] rl=150ohm rl=75ohm dc
NJM41031 - 8 - q typical characteristics 0.00 1.00 2.00 3.00 4.0 4.5 5.0 5.5 6.0 differential gain [%] supply voltage [v] differential gain vs. supply voltage 1.0vpp, 10step video signal input 0.00 1.00 2.00 3.00 4.0 4.5 5.0 5.5 6.0 differential phase [deg] supply voltage [v] differential phase vs. supply voltage 1.0vpp, 10step video signal input 0 1 2 3 4.0 4.5 5.0 5.5 6.0 switching voltage level [v] supply voltage [v] switching voltage level (low level) vs. supply voltage -50 -40 -30 -20 4.0 4.5 5.0 5.5 6.0 low pass filter charactrestic [db] supply voltage [v] low pass filter charactrestic vs. supply voltage 1.0vpp, 108m/100khz, sine signal input 60 70 80 90 4.0 4.5 5.0 5.5 6.0 signal to noise ratio [db] supply voltage [v] signal to noise ratio vs. supply voltage 1.0vpp, white 100%video signal input 0 1 2 3 4.04.55.05.56.0 switching voltage level [v] supply voltage [v] switching voltage level (high level) vs. supply voltage
NJM41031 - 9 - q typical characteristics operating current vs. temperature 10 15 20 25 30 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] operating current [ma] operating current at power save mode vs. temperature 0 20 40 60 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] operating current at power save mode [ua] maximam output voltage swing vs. temperature total harmonic distotion=1%, 100khz 0 1 2 3 4 5 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] maximam output voltage swing [v] low pass filter charactrestic vs. temperature 1.0vpp, 108m/100khz, sine signal input -50 -40 -30 -20 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] low pass filter charactrestic [db] low pass filter charactrestic vs. temperature 1.0vpp, 6.75m/100khz, sine signal input -1.00 -0.50 0.00 0.50 1.00 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] low pass filter charactrestic [db] low pass filter charactrestic vs. temperature 1.0vpp, 108m/100khz, sine signal input -50 -40 -30 -20 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] low pass filter charactrestic [db]
NJM41031 - 10 - q typical characteristics differential gain vs. temperature 1.0vpp, 10step video signal input 0.00 1.00 2.00 3.00 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] differential gain [%] differential phase vs. temperature 1.0vpp, 10step video signal input 0.00 1.00 2.00 3.00 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] differential phase [deg] signal to noise ratio vs. temperature 1.0vpp, white 100% video signal input 60 70 80 90 -50 -25 0 25 50 75 100 125 ambient temperature [0c] signal to noise ratio [db] switching voltage level (high level) vs. temperature 0 1 2 3 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] switching voltage level [v] switching voltage level (low level) vs. temperature 0 1 2 3 -50 -25 0 25 50 75 100 125 ambient temperature [ 0 c] switching voltage level [v]
NJM41031 - 11 - [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.

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