t ech w ell t ech w ell a utomotiv e displa y ics a utomotiv e displa y ics t w8827 t w8827 ultr a lo w c ost , highly int egr at ed l cd c ontr oller f or analog l cd panels ultr a lo w c ost , highly int egr at ed l cd c ontr oller f or analog l cd panels techwell display t he t w8827 is an ultr a lo w c ost , highly int egr at ed l cd tft flat panel c ontr oller suppor ting analog panels . t o r educ e bom c ost , t w8827 int egr at es a nt sc/p al/secam video dec oder suppor ting cbv s & s-v ideo inputs , an 8-bit mcu, a c cfl c ontr oller and a led c ontr oller . t he t w8827 int egr at es a high qualit y nt sc/p al/secam 2d video dec oder and a 2d d e-int erlac er/scaler . in addition, 16-bit digital rgb/y cbcr inputs ar e su ppor t ed thr ough built-in digital int er fac e . k e y f ea tur es k e y f ea tur es suppor ts analog inputs including cvbs & s-v ideo signals and digital inputs including 18-bitss rgb/y cbcr . both int erlac ed and pr ogr essiv e itu-656 and itu-601 f ormats ar e suppor t ed suppor ts analog panel up t o wqvga r esolutions int egr at ed 8-bit 8051 mcu, led c ontr oller and c cfl c ontr oller built-in 8 c olor f ont based osd with ~200 rom & 75 ram f onts embedded image enhanc ement p r ogr ammable cti, hue , brightness , satur ation, c ontr ast & sharpness c ontr ol black/whit e str et ch p r ogr ammable fa v orit e c olor enhanc ement- up t o thr ee c olors (sk in, gr ass & sk y) p r ogr ammable g amma c orr ec tion table t w8827 f unc tional block diagr am t w8827 f unc tional block diagr am or der inf orma tion or der inf orma tion p ar t # n ame description pin count body size TW8827 tqfp 80 thin quad flat package 80 v ideo d ec o der digital int er fac e 2d d e-int erlac er scaler 4h c omb f ilter cvbs/ s-v ideo 16-bit digital rgb c cfl c ontr oller f o nt osd image enhanc ement g amma co n t r o l (8-bit l ut ) spi int er fac e analog p anel mux p anel timing tco n da c r g b } analog panel 8051 mcu (8-bit) led c ontr oller 12 x 12 mm t ar get a pplica tions t ar get a pplica tions na vigation + dvd + t v back up c amer a rear s eat ent er tainment c ar t v p o r table dvd pmp p or table t v d o or phone phot o f r ame dmb t v bab y monit or home a udio in f light ent e r tainment
t ech w ell a utomotiv e displa y ics a utomotiv e displa y ics about t echw ell t echw ell is a fabless semic onduc t or c ompan y that designs , mark ets and sells mix ed signal int egr at ed cir cuits f or multiple digit al video applications in the c onsumer , securit y sur v eillanc e and aut omotiv e mark ets , including adv anc ed t vs , multifunc tion l cd monit ors , dvd rec or ders , securit y sur v eillanc e syst ems and in-car l cd displa ys . f ounded in 1997, w e curr ently ha v e o v er 125 emplo y ees and ar e headquar t er ed in san jose , c alif ornia, with additional r&d and sales ac tivities in south kor ea, japan, t aiwan and china. nasda q: t wll t w8827 a nalog video dec o der nt sc (m, 4.34) and p al (b , d , g, h, i, m, n, n c ombination), p al (60), secam with aut omatic f ormat det ec tion a d v anc ed synchr onization pr oc essing f or vcr trick pla y signal t w o 10-bit adcs and analog clamping cir cuit. built-in analog anti-aliasing filt er f ully pr ogr ammable static gain or aut omatic gain c ontr ol f or the y or cvbs channel p r ogr ammable whit e peak c ontr ol f or the y or cvbs channel sof t war e selec table analog inputs allo ws an y of the f ollo wing c ombinations: 2 c omposit e video 1 s-v ideo 4-h adaptiv e c omb filt er y/c separ ation p al dela y line f or c olor phase err or c orr ec tion digital pll f or both c olor and horiz ontal lock ing p r ogr ammable hue , brightness , satur ation, c ontr ast , sharpness , g amma c ontr ol, and noise suppr ession a ut omatic c olor c ontr ol and c olor k iller d et ec tion of lev el of c opy pr ot ec tion acc or ding t o m acr o vision standar d 2008 t echw ell inc . all rights r eser v ed . led c on tr oller boost-up dc and pwm dimming control built-in open led protection 1mhz fixed switching frequency resistor-programmable led current 16bits digital rgb/y cbcr inputs suppor ts 18-bits rgb/y cbcr digital input suppor ts both int erlac ed and pr ogr essiv e itu 656 sour c e built-in m icr oc on tr oller suppor t ex t ernal spi int er fac e suppor t i2c m ast er int er fac e with gpio suppor t 2 led signal int er fac e with gpio suppor t u art int er fac e with gpio suppor t ir or int errupt with gpio tft p anel suppor t suppor ts a wide v ariet y of analog ac tiv e matrix tft panels suppor ts analog panel up t o wqvga (480 x 234) f on t osd built-in osd c ontr oller with int egr at ed char ac t er rom and pr ogr ammable ram f ont- 202 rom & 75 ram f onts multi-windo w osd suppor t with c olor pallet suppor t osd o v erla y with alpha blending m isc ellaneous suppor ts 2-wir e serial bus int er fac e temperature rating: -40 c to +85 c spread spectrum pll low-speed adc for key scan programmable panel vcom offset control 5v tolerant i/o power-down mode typical power consumption less than tbd single 27mhz crystal c cfl c on tr oller single channel c cfl c ontr oller based on push-pull ar chit ec tur e lamp fault monit oring- lamp open, lamp o v er-curr ent , f ailur e t o strik e and o v er-v oltage p r ogr ammable lamp f r equenc y t o mo v e emi spurs out of band analog or digital brightness c ontr ol. 300:1 dimming r ange with the digital brightness c ontr ol. l o w po w er stand-b y mode image p r oc essing & enhanc emen t built-in 2d de-int erlacing engine built-in high qualit y scalar p r ogr ammable hue , brightness , satur ation, c ontr ast sharpness c ontr ol with v er tical peak ing p r ogr ammable c olor tr ansient impr o v ement c ontr ol independent rgb gain and off set c ontr ols p anor ama / w a t er-glass scaling y cbcr hue adjustment p r ogr ammable g amma c orr ec tion tables built-in y cbcr t o rgb c olor spac e c on v er t er black/whit e str e t c h p r ogr ammable fa v orit e c olor enhanc ement p o w er managemen t suppor ts p anel po w er sequencing suppor ts dpms f or monit or po w er management 1.8 / 3.3 v oper ation ultr a lo w c ost , highly int egr at ed l cd c ontr oller f or analog panels ultr a lo w c ost , highly int egr at ed l cd c ontr oller f or analog panels t iming c on tr oller ( t c on) suppor t pr ogr ammable int er fac e signals f or c ontr ol c olumn (sour c e) driv er / r o w (gat e) driv er
|
