ver.1.3 njm2525 -1- 4ch video amplifier with sw&sd/ hd lpf general description package outline the njm2525 is 4ch video amplifier with sd/hd lpf. the njm2525 includes 2in-1out selector for the composite and component signal. the isolation amplifier eliminates the common mode noise from external equipment. the njm2525 is suitable for the av equipment such as the home theater systems and av receivers that switch the internal video signal and the external video signal. features operating voltage 4.5 to 5.5v sd/ hd lpf 6.75mhz/ 13.5mhz/ 30mhz 6db amplifier 75 ? driver circuit y/c mix circuit isolation amplifier power save circuit bipolar technology package outline ssop32 block diagram NJM2525V scin syin yin1 pbin1 prin1 bias vcc1 gnd1 vcc2 gnd2 vout yout pbout prout 6db 75 ? drv clamp 6db 75 ? drv 6db 75 ? drv 6db 75 ? drv clamp bias bias vcc3 yin2 pbin2 prin2 pring bias pbing bias ying bias gnd3 slsw (input1 or input2) bias bias mix 6db ps1 ps2 13.5m 30m 13.5m 30m 13.5m 30m 6.75m lpfsw (13.5m or 30m) vin ving bias bias bias cly1 cly2 clv1 clv2 clamp clamp
- 2 - njm2525 ! ! ! ! pin configuration (ssop32) no. symbol function no. symbol function 1 vin v input 17 slsw input control switch 2 ving vgnd input 18 prin pr input 3 clv1 v isolation output 19 lfpsw lpf control switch 4 clv2 v isolation input 20 prin2 pr input 2 5 vcc1 power supply terminal 1 21 pring prgnd input 6 yin y input 22 gnd3 gnd 3 7 ps1 power save 1 23 prout pr output 8 yin2 y input 2 24 nc no connection 9 ying ygnd input 25 pbout pb output 10 cly1 y isolation output 26 vcc3 power supply terminal 3 11 cly2 y isolation input 27 yout y output 12 gnd1 gnd 1 28 gnd2 gnd 2 13 pbin pb input 29 vout v output 14 ps2 power save 2 30 vcc2 power supply terminal 2 15 pbin2 pb input 2 31 syin sy input 16 pbing pbgnd input 32 scin sc input 16 32 31 30 29 28 27 26 25 24 23 20 21 22 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 vin ving clv1 clv2 scin syin yc c 2 you t cly2 gnd3 pbin2 pbing ps2 slsw prin 18 16 17 vcc1 yin ps1 yin2 gnd2 ying gnd1 pring pbin prin2 cly1 lpfsw you t vcc3 pbout nc prout
- 3 - njm2525 absolute maximum ratings (ta=25 c) parameter symbol ratings unit supply voltage v + 10.0 v power dissipation p d 1250 (note ) 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 2 layers, fr-4) recommended opearating condition (ta=25 c) parameter symbol test condition min. typ. max. unit operating voltage vopr 4.5 5.0 5.5 v electrical characteristics (ta=25 c, v + =5v, r l =150 ? ) parameter symbol test condition min. typ. max. unit operating current i cc no signal - 50 65 ma operating current at power save isave power save mode - 0.6 1.2 ma maximum output voltage swing vom vin=100khz, sine signal, thd=1% 2.2 - - vp-p voltage gain1 gv1 (note 7)vin=1mhz, 1.0vp-p, sine signal 5.6 6.1 6.6 db voltage gain2 gv2 (note 3)vin=3.58mhz,0.3vpp,sine signal 5.6 6.1 6.6 db gain difference between channel ? gvi (note 1) vin=1mhz, 1.0vp-p,sine signal -0.2 0 +0.2 db gfy6.75m (note 2) 6.75mhz/1mhz, 1.0vp-p sine signal -1.0 0 1.0 db low pass filter characteristic 1 gfy108m (note 2) 108mhz/1mhz, 1.0vp-p sine signal - -40.0 -24.0 db gfc6.75m (note 3)6.75mhz/3.58mhz, 0.3vp-p sine signal -1.0 0 1.0 db low pass filter characteristic 2 gfc108m (note 3) 108mhz/3.58mhz, 0.3vp-p sine signal - -40.0 -24.0 db gf sd 13.5m (note 4) 13.5mhz/1mhz, 1.0vp-p, sine signal -1.0 0 1.0 db low pass filter characteristic 3 gf sd 108m (note 4) 108mhz/1mhz, 1.0vp-p, sine signal - -40.0 -24.0 db gf hd 30m (note 4) 30mhz/1mhz, 1.0vp-p, sine signal -1.0 0 1.0 db low pass filter characteristic 4 gf hd 148m (note 4) 148mhz/1mhz, 1.0vp-p, sine signal - -40.0 -24.0 db differential gain dg (note 5) vin=1.0vp-p, 10step video signal - 0.5 - % differential phase dp (note 5) vin=1.0vp-p, 10step video signal - 0.5 - deg s/n ratio1 sn1 (note 2) vin=1.0vp-p, 100% white video signal, rl=75 ? , 100khz to 6mhz - 70 - db s/n ratio2 sn2 (note 4) vin=1.0vp-p, 100% white video signal, rl=75 ? , 100khz to 6mhz, - 80 - db s/n ratio3 sn3 (note 6) vin=1.0vp-p, 100% white video signal, rl=75 ? , 100khz to 6mhz, - 75 - db common mode noise rejection ratio cmr (note 4) vin=20khz,vin=1vp-p,sine signal - -55 - db cross talk ct vin=4.43mhz,vin=1vp-p,sine signal - -60 - db (note 1) yout/ pbout/ prout (note 2) scin,syin-vout (note 3) scin ? vout (note 4) yin-yout,pbin-pbout,prin-prout
- 4 - njm2525 (note 5) syin ? vout, yin ? yout (note 6)vin-vout,yin2-yout,pbin2-pbout,prin2-prout (note 7) syin/vin - vout,yin1/yin2 - yout,pbin1/pbin2 - pbout,prin1/prin2 - prout electrical characteristics (ta=25 c, v + = 5v, r l =150 ? ) parameter symbol test condition min. typ. max. unit sw voltage high level vthh 2.0 - v + v sw voltage low level vthl 0 - 1.0 v switch inflow current high level ithh v slsw =v lpfsw =v ps 1=v ps2 =5v - - 120 a switch inflow current low level ithl v slsw =v lpfsw =v ps 1=v ps2 =0.3v - - 8.0 a control terminal parameter status note h (sy, v, sc) power save: off, active l (sy, v, sc) power save: on, mute ps1 (power save1) open (sy, v, sc) power save: on, mute h (y, pb, pr) power save: off, active l (y, pb, pr) power save: on, mute ps2 (power save2) open (y, pb, pr) power save: on, mute h yin2/pbin2/prin2/vin l yin1/pbin1/prin1/ scin/syin slsw (y/pb/prout) open yin1/pbin1/prin1/ scin/syin h 30mhz lpf l 13.5mhz lpf lpfsw (lpf) open 13.5mhz lpf
- 5 - njm2525 measurement circuit 1u 50 ? 75 ? + 1u 50 ? 75 ? + 1u 50 ? 75 ? + + 0.1u + 0.1u 470u + 75 ? 75 ? 0.1u 50 ? 75 ? + 1u 50 ? 75 ? + 470u + 75 ? 75 ? 470u + 75 ? 75 ? 1u + 50 ? 75 ? 1u + 50 ? 75 ? 1u + 50 ? 75 ? 1u + 50 ? 75 ? 1u + 50 ? 75 ? 470u + 75 ? 75 ? 1u + 50 ? 75 ? 1u + 50 ? 75 ? 0.1u + 50 ? 75 ? v+ 0.1u 0.1u + 47u vin ving clv1 clv2 ying vcc1 ps1 yin2 cly1 cly2 gnd1 pbin ps2 pbin2 pbing prin lpfsw pring nc pbout yout gnd2 vcc2 syin yin gnd3 scin vout vcc3 prout prin2 slsw + 100u 0.1u
- 6 - njm2525 application circuit 470u + 75 ? 470u + 75 ? 470u + 75 ? 1u 75 ? + 1u 75 ? + 1u 75 ? + 1u 75 ? + 0.1u + 75 ? 1u + 75 ? 1u + 75 ? 1u + 75 ? 1u + 75 ? 1u + 75 ? 1u + 75 ? 1u + 75 ? + 0.1u + 0.1u 470u + 75 ? 0.1u 75 ? + v+ 0.1u 0.1u + 47u + 100u 0.1u vin ving clv1 clv2 ying vcc1 ps1 yin2 cly1 cly2 gnd1 pbin ps2 pbin2 pbing prin lpfsw pring nc pbout yout gnd2 vcc2 syin yin gnd3 scin vout vcc3 prout prin2 slsw
-7- njm2525 terminal description pin no. symbol function equivalent circuit terminal voltage 1 2 8 9 13 15 16 18 20 21 32 vin ving yin2 ying pbin pbin2 pbing prin prin2 pring scin v input vgnd input y input 2 ygnd input pb input pb input2 pbgnd input pr input pr input 2 prgnd input sc input 2.5v 3 10 clv1 cly1 v isolation output y isolation output 2.5v 4 6 11 31 clv2 yin cly2 syin v isolation input y input y isolation input sy input 1.7v 7 14 17 19 ps1 ps2 slsw lpfsw power save 1 power save 2 input control switch lpf control switch - v+ gnd 100 150k v+ gnd 58k 48k gnd v+ gnd 100 100
- 8 - njm2525 pin no. symbol function equivalent circuit terminal voltage 23 25 27 29 prout pbout yout vout pr output pb output y output v output 2.5v 2.5v 1.4v 1.4v [caution] the specifications on this databook are only given for information , without any guaranteed 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. v+ 5k gnd
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