ver.0 NJM2559 -1- output coupling capacitor-less video amplifier with power supply short-circuit protection general description package outline the NJM2559 is a output coupling capacitor-less video amplifier with power supply short-circuit protection.* when the dc voltage is impressed to the output terminal, it becomes a power saving mode, and ic is protected. the NJM2559 is suitable for the video application at risk of power supply short-circuit. *dc coupling features operating voltage 4.5 to 5.5v output coupling capacitor-less (0.5v dc output) power supply short-circuit protection circuit internal lpf -32db typ. at 19mhz 12db amplifier 75 ? driver power-save circuit bipolar technology package outline tvsp8 pin connection block diagram 1 2 3 4 8 7 6 5 1: nc 2: gnd 3: ref 4: vout 5: v+ 6: vin 7: power save 8: nc 0.1u 50 ? 75 ? in 12db 75 ? drv clamp lpf 75 ? out ref vcc gnd ps ref 120 ? 120 ? 120 ? 120 ? + 33uf NJM2559rb1
ver.0 NJM2559 - 2 - absolute maximum ratings (ta=25 c) parameter symbol ratings unit supply voltage v + 7.0 v output terminal voltage vo 13.5 power dissipation p d 580 *1 mw operating temperature range topr -40 to +85 c storage temperature range tstg -40 to +150 c (note) at on a board of eia/jedec specification. (114.3 x 76.2 x 1.6mm two layers, fr-4) electrical chracteristcs 1 ( v + =5v, rl= refer to test circuit, ta=25 c) parameter symbol test condition min. typ. max. unit operating voltage vopr 4.5 5.0 5.5 v supply current i cc no signal - 9.0 12.0 ma supply current at power save mode isave power save mode - 40 100 ua power supply short-circuit voltage vodcin 75 ? series resistance connection - - 16 v output terminal voltage at power supply short-circuit voutdcin 75 ? series resistance connection - - 13.5 v ref terminal voltage 1 at power supply short-circuit vthref1 power supply short-circuit protection off on 1.2 1.5 1.8 v ref terminal voltage 2 at power supply short-circuit vthref2 power supply short-circuit protection on off 0.8 1.1 1.4 v maximum output level vom f=100khz, thd=1%, sin-signal 2.2 2.5 - vp-p voltage gain gv vin=100khz,0.5vp-p, sin-signal 11.9 12.3 12.7 db gfy4.5m vin=4.5mhz/100khz, 0.5vp-p -0.6 -0.1 0.4 low pass filter characteristic gfy19m vin=19mhz/100khz, 0.5vp-p - -32 -22 db differential gain dg vin=0.5vp-p, 10step video signal, rl=75 ? - 0.5 - % differential phase dp vin=0.5vp-p, 10step video signal, rl=75 ? - 1.5 - deg output dc voltage vodc no signal - 0.5 0.65 v sw voltage high level vthpsh power save terminal switch voltage 1.8 - v + sw voltage low level vthpsl power save terminal switch voltage 0 - 0.3 v control terminal parameter status mode h power save: on non-active mode (mute) ref l power save: off active mode (mute) h power save: off active mode l power save: on non-active mode (mute) power save open power save: on non-active mode (mute)
ver.0 NJM2559 - 3 - test circuit application please connect the capacitor of power supply terminal (pin 5) near ic. dc coupling is recommended. please do not connect the output coupling capacitor. external resistance must use power dissipation :125mw or more. when 120 ? x3 are replaced with 360 ? , 400mw or more is recommended. + 33uf 1 2 3 4 8 7 6 5 120 ? 120 ? 120 ? 120 ? 75 ? 75 ? 0.1uf 75 ? 10uf 0.1uf power save nc nc vin v+ gnd ref vou t
ver.0 NJM2559 - 4 - application circuit: power supply short-circuit for 18vmax) application please connect the capacitor of power supply terminal (pin 5) near ic. dc coupling is recommended. please do not connect the output coupling capacitor. the power dissipation of external resistance is as follows. when the power supply short-circuit voltage is 18vmax, the current that flows to each resistance is as follows. - 75 ? (series resistance): about 60ma - 360 ? ,120 ? (power supply short-circuit detection resistance): about 30ma - 500 ? (pull-down resistance): about 30ma the power dissipation recommendation value of each resistance is as follows. - 75 ? (series resistance): 300mw or more - 360 ? (power supply short-circuit detection resistance): 400mw or more - 120 ? (power supply short-circuit detection resistance): 125mw or more - 500 ? (pull-down resistance): 500mw or more the load resistance of NJM2559 is about 93 ? in this application circuit. please use it more than 93 ? . moreover, supply current increases by 1ma when comparing with test circuit. + 33uf 1 2 3 4 8 7 6 5 120 ? 360 ? 75 ? 75 ? 0.1uf 75 ? 10uf 0.1uf power save nc nc vin v+ gnd ref vou t 500 ?
ver.0 NJM2559 - 5 - typical characterics 0 5 10 15 v+ vs icc 44.555.56 icc[ma] v+ [v] 0 25 50 75 100 v+ vs isave 44.555.56 isave[ua] v+ [v] 0 2 4 6 8 10 12 14 16 v+ vs protect mode1 out1 vout1 ref1 44.555.56 out1/vout1/ref1[v] v+ [v] 0 2 4 6 8 10 12 14 16 v+ vs protect mode2 out2 vout2 ref2 44.555.56 out2/vout2/ref2[v] v+ [v] mode1: power supply short-circuit protection off on mode2: power supply short-circuit protection on off the voltage is applied to out from 0v in the step of +0.1v. the voltage is applied to out from 16v in the step of -0.1v. each voltage when the voltage of vin began to fall each voltage when the voltage of vin becomes 1.4v is measured. on low is measured. 75 ? vout1 vout2 120 ? 120 ? 120 ? 120 ? v + gnd off off off off internal impedance: about 4k ? to ref iout out1 out2 ref1 ref2 power supply short-circuit protection power supply short-circuit protection power supply short-circuit protection power supply short-circuit protection
ver.0 NJM2559 - 6 - typical characterics 0 2 3 5 6 v+ vs vom 44.555.56 vom[vpp] v+ [v] 11.0 11.5 12.0 12.5 13.0 13.5 14.0 v+ vs gv 44.555.56 gv[db] v+ [v] -1.0 -0.5 0.0 0.5 1.0 v+ vs gfy4.5m 44.555.56 gfy4.5m[db] v+ [v] -60.0 -50.0 -40.0 -30.0 -20.0 -10.0 v+ vs gfy19m 44.555.56 gfy19m[db] v+ [v] 0.0 1.0 2.0 3.0 4.0 5.0 v+ vs dg 44.555.56 dg[%] v+ [v] 0.0 1.0 2.0 3.0 4.0 5.0 v+ vs dp 44.555.56 dp[deg] v+ [v]
ver.0 NJM2559 -7- typical characterics 0.0 0.2 0.4 0.6 0.8 1.0 v+ vs vodc 44.555.56 vodc[v] v+ [v] 0.0 0.5 1.0 1.5 2.0 v+ vs vthh 44.555.56 vthh[v] v+ [v] 0.0 0.5 1.0 1.5 2.0 v+ vs vthl 44.555.56 vthl[v] v+ [v]
ver.0 NJM2559 - 8 - typical characterics mode1: power supply short-circuit protection off on mode2: power supply short-circuit protection on off the voltage is applied to out from 0v in the step of +0.1v. the voltage is applied to out from 16v in the step of -0.1v. each voltage when the voltage of vin began to fall each voltage when the voltage of vin becomes 1.4v is measured. on low is measured. 0 5 10 15 t vs icc -40-200 20406080100120 icc[ma] t [c o ] 0.0 50.0 100.0 150.0 200.0 t vs isave -40-200 20406080100120 isave[ua] t [c o ] 0 2 4 6 8 10 12 14 16 t vs protect mode1 out1 vout1 ref1 -40-200 20406080100120 out1/vout1/ref1[v] t [c o ] 0 2 4 6 8 10 12 14 16 t vs protect mode2 out2 vout2 ref2 -40-200 20406080100120 out2/vout2/ref2[v] t [c o ] 75 ? vout1 vout2 120 ? 120 ? 120 ? 120 ? v + gnd off off off off internal impedance: about 4k ? to ref iout out1 out2 ref1 ref2 power supply short-circuit protection power supply short-circuit protection power supply short-circuit protection power supply short-circuit protection
ver.0 NJM2559 - 9 - typical characterics 0.0 1.0 2.0 3.0 4.0 5.0 t vs vom -40-200 20406080100120 vom[vp-p] t [c o ] 11.0 11.5 12.0 12.5 13.0 13.5 14.0 t vs gv -40-200 20406080100120 gv[db] t [c o ] -1.0 -0.5 0.0 0.5 1.0 t vs gfy4.5m -40-200 20406080100120 gfy4.5m[db] t [c o ] -60.0 -50.0 -40.0 -30.0 -20.0 -10.0 t vs gfy19m -40-200 20406080100120 gfy19m[db] t [c o ] 0.0 1.0 2.0 3.0 4.0 5.0 t vs dg -40-200 20406080100120 dg[%] t [c o ] 0.0 1.0 2.0 3.0 4.0 5.0 t vs dp -40-200 20406080100120 dp[deg] t [c o ]
ver.0 NJM2559 - 1 0 - typical characterics 0.0 0.2 0.4 0.6 0.8 1.0 t vs vodc -40-200 20406080100120 vodc[v] t [c o ] 0.0 0.5 1.0 1.5 2.0 t vs vthh -40-200 20406080100120 vthh[v] t [c o ] 0.0 0.5 1.0 1.5 2.0 t vs vthl -40-200 20406080100120 vthl[v] t [c o ] -60 -40 -20 0.0 20 10 5 10 6 10 7 voltage gain vs. frequency 25 -40 85 105 gain [db] frequency [hz] NJM2559 [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
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