MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M52390FP is a single-chip semiconductor integrated circuit which has a function to convert R/G/B signal to NTSC/PAL composite video signal and the superimpose function. FEATURES Superimpose function •Ys IN (control input) is used for switching 2 input signals, VIDEO IN and RGB IN. •Because high-speed analog switch is built-in, even microscopic characters can be inserted. •Built-in an APC circuit to adjust tint of the parent picture (VIDEO IN) and the RGB encode signal automatically. Overall functions •A drive circuit (75Ω) can be configured with one transistor by outputting the video output signal at 2VP-P. •This device can be used for both NTSC system and PAL system. 1 20 LPF fc CONT. 2 19 COLOR CONT. HHK 3 18 R IN CLAMP R 4 17 G IN M52390FP RGB encode •LPF for chroma difference signal is built-in. Cutoff frequency control is possible by connecting a resistor externally. •Because VCA circuit is built-in, gain control at chroma block is possible. •Carrier leak is on a low level because of built-in high-precision modulation circuit and clamp circuit. •Burst signal and sync signal are generated within the IC. GND C.Sync IN 3fsc TRAP 5 CLAMP B 6 16 B IN VCXO 7 APC FILTER 8 13 Vreg VIDEO IN 9 12 Ys IN 15 Y OUT 14 Y IN VIDEO OUT 10 11 VCC Outline 20P2N-A (Lead pitch:1.27mm) APPLICATION TV, VCR, monitor, and other AV equipments RECOMMENDED OPERATING CONDITION Supply voltage range .................................................... 4.7 to 5.3V Rated supply voltage ................................................................ 5V BLOCK DIAGRAM COLOR CONT. LPF fc CONT. 20 R IN 0.72VP-P 19 18 G IN B IN Y OUT Y IN Vreg 17 16 15 14 13 12 VREG SWV CONT APC SW SW V 1VP-P CLAMP R VCA CONT CLAMP G CLAMP R C.SYNC R-Y VCA R VCA B SYNC ADD MATRIX C.SYNC 1/2fh 1/2 CLAMP B BFP(CP) MMV BURST ADD R MOD R NTSC ADD Y/C MIX BPF NTSC : OFF PAL (Y : 6dB) LIM R BURST ADD B C.SYNC LPF B 11 0.5VP-P Y LPF R VCC=5V CLAMP B C.SYNC BFP LPF CONT Ys IN MOD B ADDd BPFd HPF 2 AMP 1 HPF 1 1/2fh LIM B X 1/2fh at PAL IDENT BFP 90˚ SIFT HHK Y/C MIXd AMP 2 VCXO APC CLAMP V BFP 2VP-P 1VP-P 1 2 3 4 5 6 7 8 GND C.Sync IN HHK CLAMP R 3fsc TRAP CLAMP B VCXO APC FILTER 6dB AMP 9 VIDEO IN 10 VIDEO OUT MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER ABSOLUTE MAXIMUM RATINGS (Ta=25˚C, unless otherwise noted) Symbol VCC Supply voltage Parameter Pd Power dissipation Topr Tstg Operating temperature Storage temperature K Thermal derating (Ta≥25˚C) Ratings 7 Unit V 620 (900) mW -20 to 75 -40 to 125 ˚C ˚C 6.2 (9.0) mW/˚C Values in parentheses are those measured when the IC is mounted on a standard board. ELECTRICAL CHARACTERISTICS (Ta=25˚C, Vcc=5V, Sa2=sync input, unless otherwise noted) Test No. Symbol Parameter Test conditions Test point Min. Limits Typ. Max. Unit 1 ICC1 Current dissipation 1 NTSC MODE 12 5V 11 35 50 65 mA 2 ICC2 Current dissipation 2 PAL MODE (SW13 : ON) 12 5V 11 37 52 67 mA ER EG EB EY Matrix ratio R Matrix ratio G Matrix ratio B Y level at RGB 100% SG18 : 1VP-P SG17 : 1VP-P SG16 : 1VP-P SG16, SG17, SG18 : 0.71VP-P 15 15 0.27 0.53 0.09 0.63 0.30 0.59 0.11 0.71 0.33 0.65 0.13 0.79 VP-P VP-P VP-P VP-P 7 FR SG18 : 500kHz/5MHz, 0.5VP-P CW R IN - Y OUT frequency characteristics SW16, 17, 18 : ON 2 0V (SG2 : OFF) 15 -1.5 0 1.5 dB 8 FG G IN - Y OUT frequency characteristics SW16, 17, 18 : ON 15 -1.5 0 1.5 dB SG16 : 500kHz/5MHz, 0.5VP-P CW SW16, 17, 18 : ON 2 0V (SG2 : OFF) 15 -1.5 0 1.5 dB NTSC MODE 15 257 286 315 mVP-P PAL MODE (SW13 : ON) 15 270 300 330 mVP-P RGB IN 3 4 5 6 Y OUT 15 15 SG17 : 500kHz/5MHz, 0.5VP-P CW 2 FB 9 10 11 Y IN B IN - Y OUT frequency characteristics Sync level 1 VS1 Sync level 2 VS2 VIDEO OUT 0V (SG2 : OFF) 12 GY Y IN - VIDEO OUT Gain SG14 : 500kHz, 0.5VP-P CW 12 5V 10 10.5 12 13.5 dB 13 FY Y IN - VIDEO OUT frequency characteristics SG14 : 5MHz, 0.5VP-P CW 12 5V 10 -1.5 0 1.5 dB 5 210 310 410 ns 5 210 310 410 ns RGB IN TRAP 14 DL(R-Y) Delay (R-Y) SG18 : 1VP-P 15 5V, 12 5V, 7 0V 15 DL(B-Y) Delay (B-Y) SG16 : 1VP-P 15 5V, 12 0V, 7 0V 16 GH(R-Y) Gain (R-Y) VCA:Hi SG18 : 500kHz, 0.5VP-P CW SW4, 6, 16, 17, 18 : ON 15 5V, 12 5V, 7 0V, 19 5V/2.5V 2 0V (SG2 : OFF) 5 1 2 3.5 dB SG16 : 500kHz, 0.5VP-P CW SW4, 6, 16, 17, 18 : ON 15 5V, 12 0V, 7 0V, 19 5V/2.5V 2 0V (SG2 : OFF) 5 1 2 3.5 dB SG18 : 500kHz, 0.5VP-P CW SW4, 6, 16, 17, 18 : ON 15 5V, 12 5V, 7 0V, 19 0V/2.5V 2 0V (SG2 : OFF) 5 -4.5 -3 -2 dB 17 GH(B-Y) 18 GL(R-Y) Gain (B-Y) VCA:Hi Gain (R-Y) VCA:Lo MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER ELECTRICAL CHARACTERISTICS (cont.) Test No. 19 Symbol GL(B-Y) RGB IN Parameter Test conditions SG16 : 500kHz, 0.5VP-P CW SW4, 6, 16, 17, 18 : ON 15 5V, 12 0V, 7 0V, 19 0V/2.5V 2 0V (SG2 : OFF) Gain (B-Y) VCA:Lo Test point Min. Limits Typ. Max. 5 -4.5 -3 -2 dB Unit VIDEO OUT 20 VB1 NTSC burst level NTSC MODE 12 5V 10B 243 286 329 mVP-P 21 VB2 PAL burst level PAL MODE (SW13 : ON) 12 5V 10B 255 300 345 mVP-P 22 VB3 PAL burst level difference PAL MODE (SW13 : ON) 12 5V 10B -30 0 30 mVP-P 23 PPB PAL burst phase difference PAL MODE (SW13 : ON) 12 5V 10B 82 90 98 deg 24 VR/B R/burst level ratio SG18 : 0.71VP-P 12 5V 10B 2.68 3.15 3.62 25 VG/B G/burst level ratio SG17 : 0.71VP-P 12 5V 10B 2.51 2.95 3.39 26 VB/B B/burst level ratio SG16 : 0.71VP-P 12 5V 10B 1.91 2.25 2.59 27 VC/B Carrier leak in NTSC mode NTSC MODE 12 5V 10B - -40 -28 dB 28 PR/B R/burst phase difference SG18 : 0.71VP-P 12 5V 10B 96 104 112 deg 29 PG/B G/burst phase difference SG17 : 0.71VP-P 12 5V 10B 233 241 249 deg 30 PB/B B/burst phase difference SG16 : 0.71VP-P 12 5V 10B 339 347 355 deg SG9 : 500kHz, 0.5VP-P CW SW9 : ON 12 0V, 2 0V (SG2 : OFF) 10 5 6 7 dB 10 -1.5 0 1.5 dB 10B -5 0 5 deg 10 -20 0 20 mV 40 47 54 µs 4.5 5.6 6.7 µs 2.0 2.5 3.0 µs VIDEO IN VIDEO OUT 31 GVIO VIDEO IN VIDEO OUT Gain 32 FVIO VIDEO IN VIDEO OUT frequency characteristics SG9 : 5MHz, 0.5VP-P CW SW9 : ON 12 0V, 2 0V (SG2 : OFF) SUPER IMPOSE 33 PSI RGB/VIDEO IN burst phase difference SG9 : 3.58MHz, 286mVP-P CW SG12 : 1VP-P 34 VOS DC offset SG9 : burst, 286mVP-P SG12 : 1VP-P 35 HHK HHK width PAL MODE (SW13 : ON) 5 5V 36 BFPP BFP point (burst point) 5 5V 37 BFPW BFP width (burst width) 5 5V MMV 2 15 2 15 15 MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER ELECTRICAL CHARACTERISTICS TEST METHOD Mode table (common to each test) Mode Conditions Functions 9 FREE RUN MODE VCXO FREE RUN 0 ~ 0.3V 13 PAL MODE Carrier phase for MOD R is inverted on line 2 ~ 2.2mA 12 Hi : 2 ~ 5V SUPER IMPOSE MODE 10 Lo : 0 ~ 1V 15 TEST MODE MR TEST MODE MB TEST MODE DR TEST MODE DB 12 4.7 ~ 5V 4.7 ~ 5V 4.7 ~ 5V 4.7 ~ 5V 7 2 ~ 5V 0 ~ 1V 2 ~ 5V 0 ~ 1V OPEN OPEN 0 ~ 0.3V 0 ~ 0.3V 5 Chroma difference output MOD R-Y out MOD B-Y out DIFF R-Y out DIFF B-Y out 15 5 TEST MODE P 4.7 ~ 5V V4, V6, V9, V16, V17, V18 VIDEO OUT RGB ENCODE signal out VIDEO IN signal out Voltage at each pin when SYNC is input to pin 2 (C.SYNC IN). (In clamp operation) PULSE output PAL MODE : BFP, HHK mix NTSC MODE : BFP MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST METHOD AND LIMITS CALCULATION METHOD Test No. 1 2 Test method and limits calculation method Measure the current to flow in pin 11 5V 5µs SG2 0V 64µs 3 4 5 1V SG18 SG17 SG16 52µs 2µs 0V 10µs E Output at pin 15 5V 5µs SG2 0V 64µs 6 0.71V SG16 SG17 SG18 Output at pin 0V Output at pin 10µs EY 15 SG18 SG17 SG16 7 8 9 52µs 2µs f=500kHz / 5MHz 0V 0.5VP-P CW V out 15 F = 20 log V out (5MHz) V out (500kHz) (dB) MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST METHOD AND LIMITS CALCULATION METHOD (cont.) Test No. Test method and limits calculation method 5V 5µs SG2 0V 10 11 64µs Output at pin 15 VS 0.5VP-P 0V SG14 .Frequency:500kHz 12 Measure the element of 500kHz at pin 10 (V12) and calculate GY as follows. GY = 20 log V12 (dB) 0.5VP-P 0.5VP-P 0V SG14 .Frequency:5MHz 13 Measure the element of 5MHz at pin 10 (V13) and calculate fcY as follows. fcY = 20 log V13 V12 (dB) 5V 5µs SG2 0V 64µs 1V SG18 (SG16) 0V Output at pin 52µs 2µs 14 (15) 10µ 15 DL MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST METHOD AND LIMITS CALCULATION METHOD (cont.) Test No. Test method and limits calculation method f=500kHz SG18 (SG16) 16 (17) 18 (19) Output at pin 0V 0.5VP-P CW V out 15 GH = 20 log V out ( 19 5V) (dB) V out ( 19 2.5V) GL = 20 log V out ( 19 5V) V out ( 19 2.5V) 5V (dB) 5µs SG2 0V 64µs VnH 20 21 22 Output at pin V(n+1)H 10B VB1=VnH VB2=VnH VB3=VnH - V(n+1)H 5V SG2 5µs 0V 64µs 23 Output at pin 10B PnH PPB = PnH burst phase - P(n+1)H burst phase P(n+1)H MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST METHOD AND LIMITS CALCULATION METHOD (cont.) Test No. Test method and limits calculation method 5V 5µs SG2 0V 64µs 24 25 26 1V SG18 SG17 SG16 Output at pin 52µs 2µs 0V 0.71VP-P 10µs 10B VB VC VC R (G, B) / Burst level ratio = VB 5V 5µs SG2 0V 64µs 27 Output at pin 10B VB VC VC VC/B = 20 log (dB) VB 5V 5µs SG2 0V 64µs 28 29 30 1V SG18 SG17 SG16 Output at pin 52µs 2µs 0V 10µs 10B PB PC R (G, B) / Burst phase difference = PC - PB (deg) 0.71VP-P MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST METHOD AND LIMITS CALCULATION METHOD (cont.) Test No. Test method and limits calculation method 500kHz / 5MHz 0V SG9 Output at pin 0.5VP-P CW V out 10B 31 32 GVIO = 20 log FVIO = 20 log 5V V out (500kHz) 0.5VP-P V out (5MHz) V out (500kHz) (dB) (dB) 5µs SG2 0V 64µs 286mVP-P CW 0V SG9 3.58MHz 2V 33 SG12 1V Output at pin 2µs 32µs 30µs Output at VIDEO IN side 10B PRGB PSI = PRGB - PVIN (deg) Output at RGB side PVIN MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST METHOD AND LIMITS CALCULATION METHOD (cont.) Test No. Test method and limits calculation method 5µs 5V SG2 0V 2V SG12 64µs 2µs 30µs 1V 32µs 34 SG9 0V output at pin 10 0V 286mVP-P 3.58MHZ VRGB VVIN VOS=VRGB -VVIN (mV) SG2 5µs 5V 2.5V 0V 64µs 35 output at pin 15 2.8V HHK SG2 5µs 5V 2.5V 0V 64µs 36 37 output at pin 15 BFPP BFPW 2 MMV 1/2 1 BFP C.Sync 1/2fh SG2 2 HHK CLAMP B VCA B LPF B B-Y CLAMP R VCA R LPF R C.Sync R-Y VCA CONT 19 10k V18 0.01µ LPF CONT 20 30k 19 C.Sync 91k 3 270p BURST ADD B NTSC : OFF BURST ADD R 0.1µ 4 90˚ SIFT LIM B MOD B LIM R MOD R SW4 Y MATRIX CLAMP G + CLAMP R SW17 17 + 5 5 15 BPFd BPF 0.1µ 6 Y/C MIX V6 7 7 VCXO + 4.7µ 1k 45p PAL 1µ 1.5k + 8 9 SG9 + 9 1VP-P SW9 CLAMP V V9 10k 11 11 6dB AMP 3.58 BPF 10 2VP-P HPF 1 AMP 1 BFP HPF 2 0.01µ AMP 2 SW V SWV CONT Vreg 12 SG12 12 1k SW13 13 + APC SW 47µ APC NTSC 0.5VP-P 14 IDENT Y/C MIXd (Y : 6dB) SW6 Sync. ADD 15 1/2fh BFP C.Sync 1/2fh at PAL ADDd ADD CLAMP B 16 + 4.7µ SG16 SW16 V4 X 10k V16 4.7µ 18 SW18 10k V17 4.7µ SG17 0.01µ SG18 4.7µ 10 5V 10B 47µ + SG14 MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TEST CIRCUIT Unit Resistance : Ω Capacitance : F MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER PRECAUTIONS FOR APPLICATION (1) Input signal 2 Specifications Name Pin No. C.Sync IN 5V VTH=2.5V 0V 9 VIDEO IN 1VP-P 100IRE 40IRE In case that no signal is input, this pin should be set to free run mode. 12 40IRE 286mVP-P V DL Refer to (9) Ys RGB ENCODE OUTPUT 2V VTH=1.5V Ys DL Refer to (9) 1V VIDEO OUTPUT 16 17 18 VIDEO OUTPUT B IN G IN R IN 0.71VP-P MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER (2) Setting of free run frequency (4) Setting of Y DL In this IC, the VCXO circuit generates fsc. Therefore, set the oscillator frequency of VCXO to fsc as follows before using this IC. 1) Connect pin 9 (VIDEO IN) to GND and set it to free run mode. 2) V4 is the voltage at pin 4 (OFFSET R) when sync is input to pin 2 (C.Sync IN). Apply voltage V4 - 0.5V to pin 4 (OFFSET R). 3) Set pin 2 (C.Sync IN) to H. (5V is applied.) 4) Set the output frequency at pin 5 (TRAP) by adjusting the trimmer capacitor at pin 7 (VCXO IN). (5) Color control characteristics (3)Setting of chroma difference LPF Gain in chroma section can be set as shown in Fig. 3 by applying voltage to pin 19 (COLOR CONT.). (The burst amplitude is fixed.) The group delay characteristics of color signal of RGB encode output changes by connecting a resistor externally to pin 20 (fc CONT.). Therefore, set Y DL based on the delay volume (group delay volume derived from group delay characteristics + 40ns). In case that a trap circuit is connected to pin 5 , take the delay from +5 to +10ns into consideration. The frequency characteristics of the chroma difference LPF which is built in this IC can be set as shown in Fig. 1 by connecting a resistor externally to pin 20 (fc CONT.). The group delay characteristics also change as shown in Fig. 2. 3 60k -6 50k 40k 30k 20k 10k 5k -12 (dB) (Frequency of output at pin 5 when 100kHz is input is set to 0dB.) 0 0 -1 -2 -3 0 1 -18 2 3 4 5 Voltage at pin 19 Fig. 3 Color control characteristics -24 (As for the test conditions, refer to test No.16, 17, 18 and 19.) -30 100k 1M 10M Fig. 1 Frequency characteristics of color difference LPF (As for the test conditions, refer to test No.14 and 15.) (6) Relation between BFP and HHK The pulse width of GFP and HHK can be set as shown in Fig. 4 by connecting DR externally to pin 3 (HHK). 500 400 External R at pin 3 (kΩ) RGB INÆpin 5 delay (nsec) RGB INÆpin 5 gain (dB) 6 1 Output at pin 5 2 300 200 100 0 5 10 20 30 40 50 130 120 110 100 90 80 70 BFPP BFPW HHK 5.6µs 47µs 3 R 270p 2.5µs 5V 0V pin 2 Sync 60 0 Pin 20 R (kΩ) 10 20 30 40 50 60 Time interval from sync rise at pin 2 (47µsec) Fig. 2 Group delay characteristics of color difference LPF Fig. 4 RC product at pin (As for the test conditions, refer to test No.14 and 15.) (As for the test conditions, refer to test No.35, 36 and 37.) 3 vs. internal pulse MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER (7) Driving of input pins Drive pins 9 , 16 , 17 and 18 at low impedance because they are clamped by IC input. (8) I/O relation between sync signal and burst signal during the period V 2 C.Sync IN 10 VIDEO OUT (Ts:Hi) Sync signal I/O relation between sync signal and burst signal (9) Setting of V DL and Ys DL in superimpose mode 1) V DL is used to adjust the timing of RGB encode signal and VIDEO IN signal. 2) Ys DL is used to adjust the timing of RGB encode signal and Ys IN signal. 3) In case that signals are input to C.SYNC IN, RGB IN, VIDEO IN or Ys IN at the same timing, set V DL and Ys DL based on the delay volume as below. V DL = Y DL (Refer to (4)) + 10 (nsec) Ys DL = Y DL - 10 (nsec) Burst signal MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER TYPICAL CHARACTERISTICS THERMAL DERATING (MAXIMUM RATING) POWER DISSIPATION Pd (mW) (900) Values are measured when any external circuits are connected to this IC. Values in parentheses are those measured when the IC is mounted on a standard board. 620 600 (450) 310 300 0 0 25 50 75 100 125 OPERATING TEMPERATURE Ta (˚C) Standard board Material : glass epoxy (Cu leaf pattern is put over one side of the board.) Size : 70mm, thickness=1.6mm Thickness of Cu leaf : 18µm MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER APPLICATION EXAMPLE (1) Encoding RGB video signal to NTSC/PAL signal RGB video signal input RGB VIDEO SIGNAL INPUT R 0.71VP-P G 20 18 17 RIN 16 GIN R-Y BURST ADD ( 12 Vreg SUPERIMPOSE SW BPF B-Y MOD 6dB AMP APC CLAMP MMV VCXO 6 8 Unit Resistance : Ω Capacitance : F (Note) Drive at low impedance because the RGB video signal is clamped by IC input. Set the amplitude of the RGB signal (emitter follower, etc.) to 0.71VP-P (at color saturation). VIDEO OUT 9 10 NTSC/PAL VIDEO OUTPUT APC FILTER VCXO CLAMP B 3fsc TRAP CLAMP R GND MMV 12p 0.1µ 7 1µ 1.5k 5 VIDEO IN Xtal 0.1µ 4 15µ 3 270p 2 91k 1 B-Y CLAMP 0.01µ R-Y CLAMP GND 47µ NTSC/ PAL Y/C MIX MIX 11 VCC 2.1V Y + 0.01µ 13 Sync. ADD R-Y MOD B-Y BURST ADD Vreg 14 BIN CLAMP VCC=5V Y IN 15 MATRIX B-Y ) 47µ Y DL 1k 19 FILTER CONT COLOR CONT R-Y 1k Y OUT 4.7µ 4.7µ 4.7µ + 0.01µ 30k 2.5V fc CONT. COMPOSITE Sync. 1k(PAL ONLY) Recommended Y DL (360ns): Toko Co., Ltd. TH317LSOS-3287 B Example of Xtal:Nippon denpa industry Co., Ltd. AT-51 (NTSC = 3.579545MHz) (PAL = 4.433619MHz) MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER APPLICATION EXAMPLE (2) Superimposing RGB Character Signal on NTSC/PAL Signal (*The case that RGB signal of personal computers, etc. is superimposed on NTSC/PAL signal as a child picture is mentioned in parentheses.) In case that the signal which is about 350ns behind the character (*child picture) RGB signal is directly generated as Ys signal, Ys DL is not necessary. When the timing of RGB coincides with that of Ys, set the delay time of Ys DL to 350ns (typ.). RGB CHARACTER SIGNAL INPUT (*RGB child picture signal input after processing time axis) Ys Ys DL R VTH=1.5V (Hi=R,G,B) (350ns) 0.71VP-P G COMPOSITE Sync. 20 18 17 RIN FILTER CONT COLOR CONT 16 GIN ) Toko Co., Ltd. TH317LSOS-3287 47µ 11 NTSC/ PAL SUPERIMPOSE SW Y/C MIX (Note) Drive at low impedance because character RGB signal and main picture video signal are clamped by IC input. In case that character RGB signal is generated at the same timing with that of main picture input signal, delay the main picture input signal about 370ns. The timing to insert characters is delayed. In inputting Composite Sync, input the sync signal of the main picture. BPF B-Y MOD 6dB AMP APC CLAMP MMV VCXO 6 8 Example of Xtal:Nippon denpa industry Co., Ltd. AT-51 (NTSC = 3.579545MHz) (PAL = 4.433619MHz) 9 10 1µ NTSC/PAL VIDEO OUTPUT 4.7µ APC FILTER VCXO CLAMP B 3FSC TRAP CLAMP R GND MMV 12p 0.1µ 7 VIDEO OUT 1.5k 5 VIDEO IN Xtal 0.1µ 4 15µ 3 270p 2 91k 1 B-Y CLAMP 0.01µ R-Y CLAMP GND VCC=5V VCC Vreg Y + 0.01µ Vreg 12 2.1V R-Y MOD B-Y BURST ADD 13 Sync. ADD MIX B-Y 14 BIN CLAMP R-Y BURST ADD Y IN 15 MATRIX R-Y ( Y DL 1k 19 + Recommended Y DL (360ns): 1k Y OUT 4.7µ 4.7µ 0.01µ 30k 4.7µ 47µ fc CONT. 2.5V 1k(PAL ONLY) B Main picture NTSC/PAL video signal input Unit Resistance : Ω Capacitance : F MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION OF PIN Pin No. 1 Name GND Pin voltage Peripheral circuit of pins AC : Sync input Remarks VTH=2.5V±0.3V CLAMP R CLAMP B 100µ 100µ C.SYNC 5 5k VTH 5k 0 25k 1.5k 1.5k C.SYNC IN 30k 2 25k 200µ 200µ 200µ HHK pulse width can be adjusted by connecting RC externally. AC 3V HHK 180µ 0.5V 1k 3 50µ 1k Recommended value HHK:3/4H R=91K C=270p HHK 3V 14k C 1.53k 2k C 1.53k R DC : 3.1V Recommended value of external circuit C=0.1µ AC : Chroma Recommended value of external circuit 22k 4k 1k OFFSET R 2.1V 4 36k from VCAR 1.5k 1.5k to VCAR 100µ 100µ Sync 200µ 2.4V L L C NTSC : 15µ 12P PAL : 10µ 12P C 5k 6k 5 500 TRAP 2.73k Burst : 300mVP-P 3k 17p 50µ 1mA 30k 1p 400µ 15 Test mode output when voltage at pin 15 is 5V 12 Hi : R-Y output 12 Lo : B-Y output 5 5V : Test mode setting 15 Pulse output MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION OF PIN (cont.) Pin voltage Peripheral circuit of pins 2k 14k C 1.53k Name 1.53k Pin No. Remarks DC : 3.1V Recommended value of external circuit C=0.1µ DC : 3.2V Free run frequency is set by the trimmer capacitor 22k 4k 1k OFFSET B 2.1V 6 36k from VCAB 1.5k 1.5k to VCAB 100µ 100µ Sync 200µ 60P 2k 7 VCXO IN 300 2k 7 0V : Carrier OFF 2k 300 2k 30k 1P 300µ 200µ C1 DC : 3.3V In free run mode DC : 2.7V R + ß characteristics Frequency 10k C2 18k 4k Hi 4k 8 APC FILTER 10k Lo Recommended value of external circuit R=1.5k C1=0.001µ C2=1µ 22k 20k 5k 100µ 100µ 35µ 35µ AC : VIDEO 1VP-P Pedestal section 2.9V 40k 1.5k 1.5k 1.5k 1.5k 1.5k FR HI 1.5k 300µ Clamp input (burst timing) Recommended value of external circuit C=4.7µ 4k VIDEO IN BFP 1.5k FR Hi 100µ 150µ 9 0V : Free run mode setting 30k C VIDEO 1.5k 9 APC voltage 250µ 1V MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION OF PIN (cont.) Pin No. Name Pin voltage Peripheral circuit of pins AC : VIDEO 2VP-P Pedestal section 1.8V 600µ 10 Remarks VIDEO OUT 900µ 11 VCC 12 5k ICC : 50mA Switching signal input for superimposing VTH=1.5±0.3V Hi : RGB IN output Lo : VIDEO IN output 5 3k 3k 30k 15k YS DC : 5V VTH YS Hi : picture insertion (RGB IN output) 5P 10k 40k 30k 0 100µ DC : 2.1V 500 Setting of output at pin 5 when voltage at pin 15 is 5 V 12 5 Output at pin Hi R-Y Lo B-Y Recommended value of external circuit C=47µ 8k 13 VRE G 9k 25k 14k 25k 1k 13 PAL mode at 2mA 12k etc. R1 + AC : Y 0.5VP-P Pedestal section 2.1V C 1.53k 14 OUT 1.53k Y DL Y IN 1k IN 2P R2 10k 10k 200µ 200µ AC : Y 1VP-P Pedestal section 2.1V 100 5k 15 Y OUT 30k 1.5m 50µ 5 Test mode output when voltage at pin 5 is 5V Pulse output 12 5 Output at pin Hi R-Y Lo B-Y MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION OF PIN (cont.) Pin No. Name Peripheral circuit of pins Pin voltage 16 1.53k 1.53k + B Remarks AC : B0.71VP-P Sync section : 2.9V Clamp input (burst timing) C=4.7µ AC : B0.71VP-P Sync section : 2.9V Clamp input (burst timing) C=4.7µ AC : B0.71VP-P Sync section : 2.9V Clamp input (burst timing) C=4.7µ DC : 2.5V Color control of RGB encode output 5V : Chroma section+2dB 2.5V : Standard 0V : Chroma section-3dB C 1k B IN 2.1V 200µ BFP 200µ 200µ 17 1.53k 1.53k + G C 1k G IN 2.1V 200µ BFP 200µ 200µ 18 1.53k 1.53k + R IN R C 1k 2.1V 200µ BFP 200µ 200µ 10k 0.01 µ 40k 20k COLOR CONT. 10k 10k 2.5V 19 50 µ 50 µ 50 µ MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION OF PIN (cont.) Pin No. Name Peripheral circuit of pins Pin voltage DC : 3.3V 20k 20 20k 10k 16k fc. CONT. 100 R 10k 34k Remarks fc of LPF can be adjusted by connecting a resistor externally. R=30k