preliminary NJM2570 -1- v e r.1 75 ? ? ? ? driver with filer and y/c mix general description package outline features pin configuration operating voltage 4.5 to 5.5v input y and c 0.5vpp internal lpf 0dbtyp. at 4mhz (at iref=33k ? ) -35dbtyp. at 10mhz (at iref=33k ? ) 0dbtyp. at 6mhz (at iref=22k ? ) -40dbtyp. at 16mhz (at iref=22k ? ) internal dc interface for aspect ratio discrimination bipolar technology package outline ssop16 block diaglam NJM2570 is a video amplifier included lpf in y and c system. adjustable lpf characteristic with external resistor and output with 75ohm driver optimize the tv monitor system. also, it can discriminated the aspect ratio of tv by internal dc interface for s terminal. NJM2570 includes power save circuit to suitable for portable video application. NJM2570v 1 89 16 1. cin 2. gnd 3. sdcin 4. sdcout 5. cout 6. vout 7. vsag 8. gnd2 9. v+2 10. ysag 11. yout 12. vref 13. powersave 14. yin 15. v+1 16. iref 11 9 clamp bias lpf 6db 6db 6db 6db 6db lpf 6db 6db comparator voltage reference current referrence 6db you t 10 ys a g 6 vou t 7 vs a g 5 cout 4 sdcout v+2 15 v+1 14 yi n 1 cin 3 sdcin 8 gnd2 16 iref 12 vref 13 powersave 2 gnd1
preliminary NJM2570 - 2 - v e r.1 absolute maximum ratings (ta=25 c) parameter symbol ratings unit supply voltage v + 7.0 v power dissipation p d 300 mw operating temperature range topr -40 to +85 c storage temperature range tstg -40 to +125 c recommended opearating condition (ta=25 c) parameter symbol ratings min. typ. max. unit operating voltage 1 vopr1 v + 1 4.5 5.0 5.5 v operating voltage 2 vopr2 v + 2 4.5 5.0 5.5 v electricak characteristics (v + 1=v + 2=5.0v,r l =150 ? ,ta=25 c, iref=22k ? at non-designation) parameter symbol test condition min. typ. max. unit operating circuit 1 i cc 1 v + 1=5.0v, no signal - 10 18 ma operating circuit 2 i cc 2 v + 2=5.0v, no signal - 15 25 ma operating circuit 1 at power save isave1 v + 1=5.0v, power save mode - 50 120 a operating circuit 2 at power save isave2 v + 2=5.0v, power save mode - 0 120 a voltage gain 1(y signal) gvy yin=100khz,0.5vpp input sign signal 12.0 12.4 12.9 db voltage gain 1(c signal) gvc cin=4.43mhz,0.15vpp input sign signal 12.0 12.4 12.9 db voltage gain 1(v signal) gvv yin=100khz,0.5vpp input sign signal 12.0 12.4 12.9 db gfy1-1 yin=4mhz/100khz, 0.5vpp, input sine signal iref=33k ? -3.0 0 1.0 gfy1-2 yin=10mhz/100khz, 0.5vpp, input sign signal iref=33k ? - -35 -30 gfy2-1 yin=6mhz/100khz, 0.5vpp, input sine signal iref=22k ? -3.0 0 2.0 frequency characteristics (y signal) gfy2-2 yin=16mhz/100khz, 0.5vpp input sine signal, iref=22k ? - -40 -30 db gfc1-1 cin=4.43mhz-500khz, 0.15vpp input sine signal, iref=33k ? -1.0 1.0 3.0 gfc1-2 cin=4.43mhz+500khz, 0.15vpp input sine signal, iref=33k ? -5.0 -2.0 1.0 gfc2-1 cin=4.43mhz-500khz, 0.15vpp input sine signal, iref=22k ? -1.0 0 1.0 frequency characteristics (c signal) gfc2-2 cin=4.43mhz+500khz, 0.15vpp input sine signal, iref=22k ? -1.0 0 1.0 db maximum output voltage swing 1(y signal) voym v + 1=v + 2=4.5v,yin=100khz, sine signal, thd=1%, r l =75 ? 1.2 1.5 - vp-p maximum output voltage swing 1(c signal) vocm v + 1=v + 2=4.5v,cin=4.43mhz, sine signal, thd=1%, r l =75 ? 1.05 1.85 - vp-p maximum output voltage swing 1(v signal) vovm v + 1=v + 2=4.5v,yin=100khz, sine signal, thd=1%, r l =75 ? 1.2 1.4 - vp-p sw change voltage high level for power save vch active 1.8 - v + sw change voltage high level for power save vcl non-active 0 - 0.3 v
preliminary NJM2570 - 3 - v e r.1 electricak characteristics (v + 1=v + 2=5.0v,r l =150 ? ,ta=25 c, iref=22k ? at non-designation) parameter symbol test condition min. typ. max. unit crosstark 1(yin to cout) ctyc yin to cout=20log(cout/yout) yin=4.43mhz,0.5vpp sine signal, cin=ac gnd - -50 -40 db crosstalk 2(cin to yout) ctcy cin to yout=20log(yout/cout) cin=4.43mhz,0.15vpp sine signal, yin=ac gnd - -60 -40 db s/n1(y signal) sny yin=50% white video signal, r l =75 ? at yout bandwidth 100khz to 6mhz 55 60 - db s/n2(c signal) snc cin=100% red field video signal, r l =75 ? at yout bandwidth 100hz to 500khz 55 60 - db s/n3(v signal) snv yin=50% white video signal, r l =75 ? at yout at vout bandwidth 100khz to 6mhz 53 57 - db 2nd. distortion 1(y signal) hy yin=1mhz,0.5vpp, sine signal - -50 -40 db 2nd. distortion 1(c signal) hc cin=4.43mhz,0.15vpp, sine signal - -50 -40 db 2nd. distortion 1(v signal) hv yin=1mhz,0.5vpp, sine signal - -50 -40 db sdc voltage gain gv sdc sdcin=1.0v,r l =100k ? 5.5 6.0 6.5 db sdc maxim output voltage vom sdc r l =100k ? , v + 1=v + 2=4.5v 3.6 - - v threshold voltage for sdc output impedance vthr sdc change guarantee for sdc high impedance - - 0.3 v sdc output impedance rsdc sdcout at high impedance 165 220 275 k ? control terminal parameter control notes h power save: off l power save: on power save open power save: on
preliminary NJM2570 - 4 - v e r.1 test circuit + + 100uf 22uf + 10uf 5v 2 1 3 4 5 6 7 15 16 14 13 12 11 10 9 8 0.1uf 100k ? 75 ? + 100uf + 22uf + 100uf + 50 ? 75 ? 75 ? 75 ? 75 ? 75 ? 75 ? 50 ? 75 ? 33k ? 22k ? + 10uf 0.1uf 0.1uf NJM2570 yo ut1 yo ut2 v+1 iref yin power save vref yout ysag v+2 0.1uf yi n gnd1 cin sdcin sdcout cout vout vsag gnd2 vou t2 vou t1 cout2 cout1 10k ? sdcout cin
preliminary NJM2570 - 5 - v e r.1 terminal explanation pin no. symbol equivalent circuit dc voltage note 1 cin 20k ? v + 1 v + 1 150 ? 2 gnd 3 sdcin 100 ? v + 1 v + 1 4 sdcout v + 1 10k ? 125k ? 95k ?
preliminary NJM2570 - 6 - v e r.1 terminal explanation pin no. symbol equivalent circuit dc voltage note 5 cout v + 1 v + 2 9.3k ? 6 vout v + 1 v + 2 9.3k ? 750 ? 7 vsag v + 1 v + 2 9.3k ? 750 ? 8 gnd2
preliminary NJM2570 -7- v e r.1 terminal explanation pin no. symbol equivalent circuit dc voltage note 9 v + 2 10 ysag v + 1 v + 2 9.3k ? 750 ? 11 yout v + 1 v + 2 9.3k ? 750 ? 12 vref v + 1 v + 1 v + 1 100 ? 28k ?
preliminary NJM2570 - 8 - v e r.1 terminal explanation pin no. symbol equivalent circuit dc voltage note 13 power save 32k ? 48k ? 14 yin v + 1 v + 1 150 ? 150 ? 15 v + 1 16 iref v + 1 v + 1 150 ? 6k ?
preliminary NJM2570 - 9 - v e r.1 [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 g uarantee or p ermission of an y ri g ht
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