ver.2 NJW1350 -1- low voltage video amplifier with lpf general description package outline the NJW1350 is a low voltage video amplifier with lpf circuit. by the internal charge pump circuit, output capacitor is unnecessary. the NJW1350 features low power and small package, and is suitable for low power design on downsizing of portable video system and system with video output. moreover, the following voltage gain variations are arranged. - njw1351(gain=6db) - njw1352(gain=9db) - njw1353(gain=16db) features operating voltage 2.5 to 3.45v unnecessary output coupling capacitor 12db amplifier internal 75 ? driver circuit (2-system drive) internal lpf -38db at 19mhz typ power save circuit bi-cmos technology package outline tvsp8, son10 pin configuration block diagram (note) tvsp8: v+1 and v+2 are the same pins, and gnd1 and gnd2 are the same pins. NJW1350kk1 NJW1350rb1 1 2 3 4 10 9 8 7 56 NJW1350kk1(son10) 1: cp1 2: v+2 3: v+1 4: vin 5: power save 6: vout 7 gnd1 8: gnd2: 9: v- 1 2 3 4 8 7 6 5 NJW1350rb1(tvsp8) 1: cp1 2: v+ 3: vin 4: power save 5: vout 6: gnd 7: v- 8: cp2 6th lpf 12db charge pump v+1 gnd1 cp1 cp2 vin power save vout v- gnd2 v+2
ver.2 NJW1350 - 2 - absolute maximum ratings (ta=25 c) parameter symbol ratings unit supply voltage v + 3.55 v power dissipation p d tvsp8:320 son10:250 mw operating temperature range topr -40 to +85 c storage temperature range tstg -55 to +125 c recommended opearating condition (ta=25 c) parameter symbol test condition min. typ. max. unit operating voltage vopr 2.5 - 3.45 v electrical characteristics (v + =3.0v,r l =150 ? ,ta=25 c) parameter symbol test condition min. typ. max. unit operating current i cc no signal - 14.0 20.0 ma operating current at power save isave no signal, power save mode - 0 1.0 ua maximum output voltage swing vom f=100khz,thd=1% 4.5 5.2 - vp-p voltage gain gv vin=100khz, 0.5vp-p, input sine signal 11.6 12.0 12.4 db gfy4.5m vin=4.5mhz/100khz, 0.5vp-p -0.75 -0.05 0.25 gfy8m vin=8mhz/100khz, 0.5vp-p -7.0 -3.0 -1.0 low pass filter characteristic gfy19m vin=19mhz/100khz, 0.5vp-p - -38 -23 db differential gain dg vin=0.5vp-p, 10step video signal - 0.5 - % differential phase dp vin=0.5vp-p, 10step video signal - 0.5 - deg s/n ratio snv 100khz to 6mhz, vin=0.5vp-p 100% white video signal, r l =75 ? - +70 - db switching noise level nswpl r l =75 ? , vout=10% white video signal - 4.0 7.0 mvpp 2nd. distortion hv vin=0.5vp-p, sine signal , 3.58mhz, r l =75 ? - -60 - db sw change voltage high level vthph active 1.25 - v + sw change voltage low level vthpl non-active 0 - 0.45 v control terminal parameter status note h power save: off l power save: on power save open power save: on *please refer to the njw1351 data sheet for the example of the characteristic.
ver.2 NJW1350 - 3 - test circuit 10uf 0.1uf 1234 87 1uf 75ohm 5 out2 75ohm out1 6 1uf 1uf cp1 v+ vin power save cp2 v- gnd vout NJW1350rb1 (tvsp8) + 10 1uf 75ohm out2 75ohm out1 1uf 1uf in 9 8 7 6 1 2 3 4 5 cp1 v+2 vin power save cp2 v- gnd2 vout v+1 gnd1 NJW1350kk1(son10) 10uf 0.1uf + [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.
|
