M52057FP MITSUBISHI | Alldatasheet
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MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR
DESCRIPTION
The M52057FP is a semiconductor integrated circuit with _| PIN CONFIGURATION (TOP VIEW) all the recording and playback chroma signal processing functions for VHS system VCRs. 3 It includes burst up, burst down with dubbing switch, main £ Sb balanced modulator, sub balanced modulator, burst ACC, 32 epee? chroma ACC, APC, REC AFC, chroma killer, VCXO, 320fh esz, z Bae 8 bare ge VCO, quadphase 40fx generator, burst gate pulse generator Faz eo Sek hece {3 types}, side lock detector, and DP compensation for PAL. 22332988 S382 2 FEATURES a ts @ Suitable for NTSC, PAL and modified SECAM man ae a Bt Fea ite ‘@ CHROMA ACC improves chroma S/N by expanding the oo M52057FP ap ADAST recording level of the low saturation ‘chroma Ore ee PBrer scr N © When recording, combfitercanbeusedfor Y/C separation |, SN 9 ewe by setting pin 24 to “L" SHER eeSSS SSSI ‘© When dubbing, setting pinm 23 to "L” changes the amount 2229558252252 of burst down from 4.6dB to 6.0dB so chroma saturation Fs aE 3: = 33 < doesn't decrease so much. (In NTSC SP and EP) agene g ag é @ By removing the comb filter from the APC loop, PM S/ 2 be ea ae N is improved by 2dB. (In NTSC SP, PAL SP) z's £3 a3 ‘@ By increasing the APC loop gain in the vertical blanking 2 2 period, the color missing on the upper side of the picture g is improved. (In NTSC EP/LP and PAL LP) Outine 48P6S-4 APPLICATION NOsNo connected VHS MODE VCR RECOMMENDED OPERATING CONDITION Supply voltag® range occu. d,6~6.5V — LN —- Mi 6249826 O022bb0 273
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MITSUBISHI ICs (VCR) M52057FP VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR BLOCK DIAGRAM . « £ 5 3 : 3 3 z z 8 OO O-O-O-O-® OO @--4 | ig? A | pe @ez 3 z 8 rar? 4 e] 3 3 = Bs es | 2 “7 88 :— ge | | | 2 Ox 5 ef P 23 ae 38 > | { 38 B g @ tT | | oO} ; ao mle ic Bake =O) dk OF i be Ty ] 8 FH A 3 zy io liber 3 (| lee 1@ i St fA} a | ©) 83 rs ) $ L > Se 5. 2: Pe) 98 az | 28 4 g & = 3 ore - iS) ' ys =| 8&2 s L. OOOO O- tod g)--4) 3 ce 2 & ME 6245826 0022661 LOT een ELECTRIC 2-15
MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR — eee ABSOLUTE MAXIMUM RATINGS Supply voltage [| [Pe | Powerdissipation Ow [ke | Thermal erating (TaB26°C) Lo were} ELECTRICAL CHARACTERISTICS {Ta = 25°C, Vcc = 5.0 V unless otherwise noted) Co Cc aE) and @. . a Input @ pin 630 kHz, 0.4 Vp-p sine & PB Amp. in RPA - Input @ pin 630 kHz, 0.25 Ver sine - input ® pin 630 kHz, 0.25 Vop sine Recording current 0 kez, wave. Put @ pin 5 Vin 6 H mode. jw | Inroase 4/9 H mode [= | Measure @ oi, BURST DOWN4 a8 Input @ pin 3.58 MH, 02 Vp-p sine [oe Rane gan | + | Mee Ree ea oa) va] a BURST DOWNPS Taput ® pin 3.58 MHz, 0.2 Vp-p sine output Amp. gain wave. Measure @ pin. Input @ pin 3.58 MHz, 0.22 Vp-p sine Goon COMB Amp. PB output wave. Switch @ pin to 0 V setting 10 p. 98 NTSC. Measure © pin Input @ pin 3.58 MHz, 0.11 Vp-p sine fous Amp, PB output wave. Switch @ pin to 25 V setting 17.0 19.0 . PAL. Measure @ pin. input @ pin chroma signal (burst 0.2 Accr REC ACC output Vp, chrome 0.4 Vp-p. Input ® pin Vop amplitude 15.734 kHz SYNC. Measure @ pin for chroma amplitude. Input @ pin -18 dB of standard chroma Acca REC ACC control range signal. Input ® pin SYNC signal. 3 Measure @ pin for chroma amplitude. Input ® pin chroma +6 dB of stenderd ACoRe REC ACC control range chroma signal. Input ® pin SYNC 3 2 signal. Measure @ pin for chroma amplitude. r Inout @ pn creme sana (Bist 02 , Vp, chroma 0 Vo-p). Input @ pin acte Sal cdaileaal SYNC signal, Measure @ pin for burst 3 amplitude. REC Y/C comb Input @ pin standard chrome signal. Vrcome ‘separation output Input @ pin SYNC signal, Measure @ Vp-p amplitude pin for chroma amplitude. Input © pin standard down-converted cchroma signal (burst 0.1 Vp-p chroma ACCe FB ACC output 7 | 0.1 Vpp 630kH2). Input @ pin SYNC 0.78) 0.86 | Vpp - signal. Measure @ pin for chroma amplitude. Input @ pin -18 dB of standard 8 down-converted chroma signal. Input ACC PBACC control range 1 | 7 | ee Nee in 3 chroma amplitude, Input © pin +6 dB of standard 5 down-converted chroma signal. Input AcCre PB ACC control range 2 | 7 | Fin’ SYNC signal. Measure @® pin for 3 chroma amplitude. eee M@ 6249626 O0eebbe O4b 1 ¢ MITSUBISHI 2-16 ELECTRIC
MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR ELECTRICAL CHARACTERISTICS (cont) Tet : Pine [ee [Dee Input @ pin 3.58 MHz, 0.5 Vpp sine i wave. Supply @ pin with offset MAIN 6M gain grounding the pin through an 18 k2 7 fesistor. Measure © pin. input ® pin & kHz, 0.5 Vp-p sine wave. input @ pin 4.21 MHz, 0.25 Vpp = cLve MAIN 8M carrier leak Sine wave, Mescure @ pin for 358 45 38 MHz and 4.21 MHz components. fe TESES™ [oe [imo | wo| sve | Measure @ pin for 4.21 MHz and 3.58 Clse SUB BM carrier leak [2 | MHz components. 40 34 Measure ® pin for 421 MHz and (3.68 [see [sues souow | 2 | MRSS Pi comeeeans ~ Input @ pin FY kHz, 0.25 Vp-p sine wave. Input ® pin SYNC signal BURST UP quantity Measure @ pin for burst and chrome 7 amplitude. Input @ pin & 58 MHz, 0.2 Vp-p sine wave. Input @ pin SYNC signal. BURST DOWN quantity Measure @ pin for burst and chroma “44 amplitude. Input @ pin 3.58 MHz, 0.2 Vp-p sine wave. Input @ pin SYNC signal. BDD BURST DOWN quantity Connect 5 V to @ pin through 2 51 ki 7 6 " 9 resistor. Measure @ pin for burst and chroma amplitude. Apply 3.1 V and then 3.5 V to @ pin. Bvcor 320 fH VCO 1 | 2 | Measure ® pin 13 kHzimy} ‘Apply 3.1 V and then 3.5 V to @ pin. Bvcor 320 fx VCO B2 12 Measure ® pin. 16 1,7 |kHz/mV} ' Input @ pin pulses (frequency variable). PULLaec: | REC AFC pullin renge 1 [3 | Measure @ pin 12 Input @ pin pulses (frequency variable} Z PULLarc2 | REC AFC pulkin range 2 | 3 | Measure @ pin 4.2 05 VOXO ouput amode | 14 | Measure @pn ‘(| oS | 66 | 07 | wen | VCXO free running Input @ pin SYNC signal. Measure @ Arvoo frequency difference | ‘4 | pin 50 Apply 3.6 V and then 4.0 V to ® pin. fivexo VCXO B. 14 | Moaure @ pin 7 [Haim Input @ pin 3.58 MHz, 0.1 Vp-p, @ pin 3.58 MHz, 0.5 Vp-p. Both inputs are to REC APC DET » be in phase. Input @ pin SYNC signal. 26 30 |mvideg} Measure @ pin. Input @ pin 3.58 MHz, 0.22 Vp-p, @ pin 3.58 MHz, 0.5 Vp-p. Both inputs are PB APC DET» to be in phase. Input @ pin SYNC 280 Imvideg} signal. Measure @ pin input © pin frequency variable 0.1 PULLapcr | REC APC pullin range 1} 17. | Vp-p. Input @ pin SYNC signal. Hz Measure @ pin. Input @ pin frequency variable 0.1 PULLace | REC APC pull in range 2| 17 | Vp-p. Input @ pin SYNC signal. ~700 Hz Measure @ pin Input @ pin chroma signal finput ATT). THRILR REC color killer threshold input @ pin SYNC signal. Measure @ -41 -31 pin. Input ® pin chroma signal (input ATT). ATHeiLir Rec cole ker Le input @ pin SYNC signal. Measure @ 1 2 3 pin. M@™ 6249426 OOeebb3 Tae
. MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR ELECTRICAL CHARACTERISTICS (cont,) Test i i = Te it ee ee Tapat © pin down-converted chroma THue PB color killer threshold | 7 | signal {input ATT). Input @ pin SYNC -41 -36 31 signal. Measure @ pin. Input @ pin down-converted chroma THe | PB color killer hysteresis | 7 | signal {input ATT). Input ® pin SYNC 3 signal. Measure @ pin. Input © pin chrome signal (input ATT). THecPR BGP NAY switchover le | Input @ pin SYNC signal. Measure @ 24 19 pin i Input © pin down-converted chroma THecre BGP. NAY switchover 7 | signal input ATT). Input @ pin SYNC -29 i signal. Measure @ pin. seas [Sree SE |e el el pin Input @ pin SYNC signal. Measure ® a 8 fre fieamon |v [ewer | al al al | pin, frome Ye [RRS | [lal pin. [Prser | ser wai | [amc om ners nen | ae [ el e[ | Input @ pin frequency variable 1 Vp-p. sD SIDE LOCK DET dead |» | Input @ pin SYNC signal. Measure -10 10 pin, Apply variable voltage to ® pin. Input THesw P/SIN switchover @ pin 630 kHz, 0.25 Vp-p sine wave. v threshold Input @ pin SYNC signal. Measure @ pin for amplitude. P/SIN switchover Apply variable voltage to ® pin. THeswe threshold 20 | Measure @ pin. 32 34] V input @ pin 630 kHz, 0.25 Vp-p. Input THs. 21800 switchover @® pin SYNC signal. Apply variable 13] Vv voltage to @ pin, Measure ® pin. Input @ pin 630 kHz, 0.25 Vp-p. Input THsue2 21816 switchover 10 | @ pin SYNC signal. Apply variable 3.0 v i voltage to @ pin. Measure @ pin. R/T/P switchover Input ® pin 630 kHz, 0.25 Vp-p sine THerPs threshold 1 | 2 | wave. Measure @ pin. my. 13] V Inout @ pin standard down converted R/T/P switchover chroma signal. input @ pin SYNC THarre threshold 2 7. | ‘signal. Apply variable voltage to @ pin. 32 34) v Measure @ pin, Input @ pin frequency variable 1 Vp- SIDE LOCK DET forced it : SLOFneet c input ® pin SYNC signal. Measure @ 57 MHz Input @ pin frequency variable 1 Vp-p. SDeneez | FIDE LOCK DET forced |» | Input @ pin SYNC signal. Measure @ pin, TH ROTARY SW input ‘Apply variable voltage to @ pin. Input v RS threshold @ pin SYNC signal. Measure ® pin THis HSS input threshold 22 | Input @ pin SYNC signal (level variable). | 28 [| S| Si ° Meesure @ pin re ee input © pin 358 Mi 02 Vep sino wave. input ® pin SYNC signal. Adjust THoue Dubbing switchover 11 | voltage at @ pin to 5 V by VR pu - Measure @ pin for burst and chroma amplitude. $$ eee @@ = 62494eb O022bb4 515 MITSUBISHI 2-18 ate MISES
MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR a ELECTRICAL CHARACTERISTICS (cont) Test Pome [ee [| eee a | YIC comb seperation Input @ pin reference chroma signal. [37] | |S THcoma switchover input Input ® pin SYNC signal. Measure @ Input @ pin SYNC signal. Supply 0.8 Vouue HP “L* output voltage | 23. | mA current to ® pin. Measure ® pin v for voltage. Input @ pin SYNC signal. Connect Vee HP "H" output current | 23 | to @ pin through 100 kA resistor. v Measure @ pin for voitage. input ® pin SYNC signal. Supply 0.8 Voss BGP “L" output voltage | 23 | mA current to @ pin. Measure @ pin v for voltage. oe Measure current flowing between @ ~~ —— M@™ 6249826 OOeebbS 855
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MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR ADJUSTMENT CIRCUIT ost Ex i ©8 331 “se = S ; eTtm 1, {COUNTER 1 $—fai sv 30k 30k 20} > vr | §V [aa] M52057FP {a5 ['s}—», 5, 47| 16) fa Ly 12) (3) 147 TS) Te) Ty Ty Ly fol fay hat Ey Py 0.01 bey aljie 7° sy | #8 Jr
3 Units Resistance: 2
SE Capacitance: F swt Adjust VC1 until the counter 1 indicates a frquency of
3.579545 MHz
SW1 on. Adjust VR1 until the counter 2 indicates a frequency of 629.4kHz. ———— M™® 624598eb OO2ebbb 791 ¢ MITSUBISHI 2-20 ELECTRIC
MITSUBISHI ICs (VCR) M52057FP VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR TEST CIRCUIT at 3 F SG OSC IL OSCOPE are 8 oe 4 q yy #4 8 oy ss SG f4.43MHz_ 6 wy ZI 8 i 0.01 re a A 28) <1 A . af 3 q Sw45 ay as a 2 TATot pd Ate al plo ow ay ols veesved 5
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MITSUBISHI ICs (VCR) M52057FP VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR as system vor cron stanat nocesson TYPICAL CHARACTERISTICS THERMAL DERATING (MAXIMUM RATING) 1.2 CoOL 2aENGee Zz 08 i Q PTT TALL eC ELT TTT 3 0.2 TEEPE 25 0 25 50 75 100 125 AMBIENT TEMPERATURE Ta(°C) a MM 6249426 O022bb8 SLY mw ate MESH 2-22 ELECTRIC
MITSUBISHI ICs (VCR) VHS SYSTEM VCR CHROMA SIGNAL PROCESSOR ee err Ei APPLICATION EXAMPLE REC “u" 2HIP2 "L™ TRICK "M™ 4HIPL "Mm" PBS GHIPL “H™ FORCIBLY MONO [7 = COLOR tart Sien £ ag 4 2s asa 3 3 3 4 | 3 o.22mmn 270 ¢ 3 }.01u==-0.01, Bolly 680 z fq " fe] Fl Fel fl fd fl Fe Gi] fo py § z ps 220 GND Pp o T/PAL <3 z | eal NP ez a LE Ls [2] y ena: S 2k 0.01m 24) |e EI vg our Ba ROTAR' =| (OPEN grany sw i e z Fai Son'ceron ——— = & it ated here! || ea z 0.0m | a” | [8] 2 qe ineur hd ir 2 [PH LE ACC AMP OUT xt = bee 77 Ly i PF] ee 10H Lay_{10008, 2:26 : a ba Ben Zieh FE 0.01m eg | EB TOOuH IS 0.0m es | S 0.018 e—4 {a} i= rs S38 0.01n Zz b loon et-—4 [3] | gated d 30} " > - O83 [a R © 0.01m i Fa fb SERVO CW fio-—f 9] ere § 7-9 fe || Ee 0.022 s rife ey a) 2 : [ae tt] | Leg 2. | : ae g 3.9k 1Ou fats 25 ce | 12.0 I e| 5 . iB so RS a d 680 4.74 kao | Ed SIDE eB | sm oo fet! | FI BALES E reursr J | ate tk [ah a DET Ag by Bjesone Ts Tig ry Ty ed c/o come 0.9m g (SePanare SW") «fas PI 12k Yow to.0m]e yt & Brees! 3 INPUT CHOMA eRe bor [P14 22] 719 Ik AGG_OFF =a ofA 22h, 89 (BPE } g 287 loowrse st ge 7 | vee 1222 *] gon To] bse 7 wen BURST ACE Units Resistance: Capacitance: F SE M@™® 6249426 0022669 4TO