MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M52347 automatically selects three types of synchronous signals containing separate sync (positive and negative polarities of 0.5 to 2.5 VP-P), composite sync (positive and negative polarities of 0.5 to 2.5 VP-P) and sync-on-video (sync negative polarity), and H. STATE 1 20 CLAMP TIMING V. STATE 2 19 Y. POL. CLAMP SW 3 18 H. POL. performs waveform shaping. The IC is optimum to synchronous signal processing for multi-scan type display monitor. • • • • • GND 5 Low power consumption with supply voltage of 5V Capable of obtaining output information on whether to input synchronous signal, and on polarity Output of clamp pulse Equipped with V TIME GATE SW that enables selecting whether or not VD portion pulse is output from pin 14 / 15 . Equipped with CLAMP SW that enables switching the clamp pulse output position. COMP/H IN 6 COMP/H DET 7 M52347SP/FP GREEN IN 4 FEATURES 17 CLAMP+ OUT 16 VCC 15 HD- OUT 14 HD+ OUT 13 VD+ OUT V IN 8 V DET 9 12 V S/S OUT 11 V S/S IN V TIME GATE SW 10 Outline 20P4B(SP) 20P2N-A(FP) APPLICATION Display monitor RECOMMENDED OPERATING CONDITION Supply voltage range..............................................Vcc=4.5 to 5.5V Rated Supply voltage............................................................Vcc=5V BLOCK DIAGRAM CLAMP TIMING Y. POL. H. POL. CLAMP+ OUT VCC HDOUT HD+ OUT VD+ OUT V S/S OUT V S/S IN 20 19 18 17 16 15 14 13 12 11 EDGE SW CLAMP GET V. TIME GATE V. SYNC SEP LOGIC LOGIC SYNC SEP 1 H SHAPE H DET V SHAPE V DET 1 2 3 4 5 6 7 8 9 10 H. STATE V. STATE CLAMP SW GREEN IN GND COMP/H IN COMP/H DET V IN V DET V TIME GATA SW MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR ABSOLUTE MAXIMUM RATINGS (Ta=25˚C, unless otherwise noted) Symbol VCC Pd Surge Topr Tstg Parameter Supply voltage Power dissipation Electrostatic discharge Operating temperature Storage temperature Ratings 6.0 1237.6(SP),827.8(FP) ±200 -20 to +85 -40 to +150 ELECTRICAL CHARACTERISTICS Symbol Circuit current 1 OH 1 OL 2 OL 18 OH 18 OL 19 OH 19 OL 14 OH 14 OL ICC Relay condition (Ta=25˚C, Vcc=12V, unless otherwise noted) TP condition 4 6 8 16 3 10 2 2 2 Pin 1 output Hi level 2 Pin 1 output Low level 2 Pin 2 output Hi level 2 Pin 2 output Low level 2 Pin 18 output Hi level 2 Pin 18 output Low level 2 Pin 19 output Hi level 2 Pin 19 output Low level 2 Pin 14 output Hi level 1 Pin 14 output Low level 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 5V 5V 1 1 1 1 1 1 1 1 1 1 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V In put pin Input condition Out put pin Output waveform Limits Note A 16 6 1µS 8 1µS 6 1µS 8 1µS 6 1µS 8 1µS 6 1µS 8 1µS 6 1µS 8 1µS 6 1µS 8 1µS 6 1µS 8 1µS 6 1µS 8 1µS 4 1µS 6 1µS 4 1 µS 6 1µS 50kHz 1VP-P 50kHz 1VP-P 50kHz 0.2VP-P 50kHz 1.0VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1.0VP-P 50kHz 0.2VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 1VP-P 50kHz 0.6VP-P 50kHz 2VP-P 50kHz 0.6VP-P 50kHz 2VP-P 40 53 66 mA 4.0 5.0 5.0 V 0.04 0.5 V 5.0 5.0 V 0.04 0.5 V 5.0 5.0 V 0.04 0.5 V 5.0 5.0 V 0.04 0.5 V 5.0 5.0 V 0.25 0.5 V 1 DC 1 DC 2 DC 2 DC 18 DC 18 DC 19 DC 4.0 19 DC 0 14 Unit Min. Typ. Max. V Meas 0.2 VP-P of input signal is equivalent to NON SYNC. 0.2 VP-P of input signal is equivalent to NON SYNC. 0 The true value table depends on Table 1. 2 OH Parameter Unit V mW V ˚C ˚C 4.0 0 4.0 0 4.0 0 14 V Meas 2 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR ELECTRICAL CHARACTERISTICS Symbol Parameter Relay condition (cont.) TP condition 4 6 8 16 3 10 Pin 15 output Hi level 1 1 2 Pin 15 output Low level 1 Pin 17 output Hi level 1 Pin 17 output Hi level 1 13 OH Pin 13 output Hi level 2 2 1 13 OL Pin 13 output Low level 2 2 1 Pin 12 output Hi level 1 Pin 12 output Low level 1 15 OL 17 OH 17 OL 12 OH 12 OL SS-NV SS-LV V3H Sync-Sep Sync input signa Max. noise amplitude voltage Sync-Sep Sync input signal Min. amplitude voltage CLAMP SW Threshold voltage H 1 1 1 1 1 1 2 2 2 2 2 2 2 4 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 5V 1 0V 2.5V 5V 1 1 1 1 1 1 1 1 Input condition 1µS 6 1µS 4 1µS 6 1µS 4 1µS 6 1µS 4 1µS 6 1µS 5V 8 0V 2.5V 5V 5V 8 0V 2.5V 5V 5V 0V 2.5V 5V 5V 0V 2.5V 5V 4 5V 50kHz 2VP-P 13 50kHz 0.6VP-P 50kHz 2VP-P 12 50kHz 0.6VP-P 50kHz 2VP-P 12 1µS 1µS 1 2 2 1 2 2 1 1 5V 4 1µS 2 1 2 1 Variable CLAMP SW Threshold voltage H Variable 3 DC voltage must be applied. 3 3 14 15 0 V Meas 2 1 1 1 0V 5V 8 10 1µS 50kHz 2VP-P 50kHz 2VP-P DC voltage must be applied. 4.0 0 No pulse must be output. 14 17 14 15 14 17 1µS 4.0 0 17 6 6 V 0.25 0.5 V 5.0 5.0 V 0.25 0.5 V 5.0 5.0 V 0.25 0.5 V 5.0 5.0 V 0.25 0.5 V V Meas 5V 50kHz 2VP-P 4.0 V Meas 17 50kHz 2VP-P 5.0 V Meas 6 Variable V10 50kHz 0.2VP-P 5.0 V Meas 5V 1µS V TIME GATE SW Threshold voltageVariable 50kHz 0.05VP-P DC voltage must be applied. 1µS V3L V Meas 1µS 6 0 17 13 1µS 4.0 V Meas 50kHz 2VP-P 4 Unit Min. Typ. Max. 15 1µS 1µS Limits Note V Meas 17 1µS Output waveform 15 50kHz 0.6VP-P 50kHz 2VP-P 6 4 50kHz 0.6VP-P 50kHz 2VP-P 50kHz 0.6VP-P 50kHz 2VP-P 50kHz 0.6VP-P 50kHz 2VP-P Out put pin 50kHz 0V 2.5V 5V Variable 15 OH In put pin 15 14 15 No pulse must be output in this portion. Must not operate when input amplitude is 0.05 VP-P or less. (Pseudo noise signal) - - Must operate when the input amplitude is 0.2 VP-P or more. 0.2 - - VP-P Checking output pulse for output with a voltage of 5 VDC applied, decrease the DC voltage and then measure the voltage when the output pulse is not output. 2.8 3.1 3.4 V Checking output pulse for output with a voltage of 0 VDC applied, increase the DC voltage and then measure the voltage when the output pulse is not output. 1.0 1.3 1.6 V Checking output pulse for output with a voltage of 5 VDC applied, decrease the DC voltage and then measure the voltage when the output pulse becomes narrow. 2.0 2.5 3.0 V 0.05 VP-P MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR ELECTRICAL CHARACTERISTICS Symbol HD +-DA HD+-DB HD+-DC HD+-DD HD--DA HD--DB HD--DC HD--DD CP+-DA CP+-DB CP+-DC CP+-PW Parameter HD+-delay time (A) HD+-delay time (B) HD+-delay time (C) HD+-delay time (D) HD--delay time (A) HD--delay time (B) HD--delay time (C) HD--delay time (D) CP+-delay time (A) CP+-delay time (B) CP+-delay time (C) CP+-PULSE -WIDTH Relay condition (cont.) TP condition 4 6 8 16 3 10 1 1 2 4 0V 0V 1 2 1 1 1 2 2 1 1 2.5V 1 2 2.5V 2 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 1µS 6 1µS 4 1µS 6 1µS 4 1µS 6 1µS 4 1µS 6 1µS 4 1µS 5V 1 5V 1 4 5V 1 0V 1 1µS 5V 5V 1 6 5V 0V 1 1µS 5V 1 5V 1 Input condition 5V 1 5V 1 In put pin 2.5V 2.5V 0V 2.5V 5V 0V 2.5V 5V 6 1µS 4 1µS 5V 6 1µS 4 1µS 5V 6 1µS 4 1µS 5V 6 1µS 4 1µS 5V 6 1µS 4 1µS 5V 6 1µS 4 1µS 6 1µS 5V Out put pin 50kHz 0.6VP-P 50kHz 2VP-P 14 50kHz 0.6VP-P 50kHz 2VP-P 14 50kHz 0.6VP-P 50kHz 2VP-P 14 50kHz 0.6VP-P 50kHz 2VP-P 14 50kHz 0.6VP-P 50kHz 2VP-P 15 50kHz 0.6VP-P 50kHz 2VP-P 15 50kHz 0.6VP-P 50kHz 2VP-P 15 50kHz 0.6VP-P 50kHz 2VP-P 15 50kHz 0.6VP-P 50kHz 2VP-P 17 50kHz 0.6VP-P 50kHz 2VP-P 17 50kHz 0.6VP-P 50kHz 2VP-P 17 50kHz 0.6VP-P 50kHz 2VP-P Output waveform Limits Note Unit Min. Typ. Max. Input 6 (50%) Time Meas - 120 350 nsec - 80 - 140 350 nsec - 120 350 nsec - 70 - 120 350 nsec - 100 350 nsec - 150 350 nsec - 90 - 130 350 nsec - 90 Output 14 (50%) Input 6 (50%) Time Meas 350 nsec Output 14 (50%) Input 4 (50%) Time Meas Output 14 (50%) nput 4 (50%) Time Meas Output 14 (50%) nput 6 (50%) Time Meas 350 nsec Output 15 (50%) nput 6 (50%) Time Meas Output 15 (50%) Input 4 (50%) Time Meas Output 15 (50%) Input 4 (50%) Output 15 Time Meas (50%) nput 6 (50%) Time Meas 350 nsec Output 17 (50%) nput 4 (50%) Time Meas Output 17 (50%) nput 6 (50%) Time Meas 350 nsec Output 17 (50%) Time Meas 250 400 550 nsec 17 Output 17 (50%) 4 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR ELECTRICAL CHARACTERISTICS Symbol VD+-DA VD+-DB Parameter VD+ -delay time (A) VD+ -delay time (B) Relay condition (cont.) TP condition 4 6 8 16 3 10 2 2 1 2 2 1 1 1 0V 2.5V 5V 5V 0V 2.5V 5V 5V In put pin 8 Input condition 1µS V Sync-Sep Threshold voltage H 1 2 8 1µS 5 V Sync-Sep Threshold voltage L 5V 11 1 2 50kHz 2VP-P 13 50kHz 2VP-P 14 DC voltage must be applied. 1 50kHz 2VP-P 15 14 6 0V 2 Input 8 (50%) 6 1µS V11L 0V 5V Unit Min. Typ. Max. Time Meas 13 0V 1 Limits Note - 100 350 nsec - 70 350 nsec Checking output pulse for output with a voltage of 0 VDC applied, increase the DC voltage and then measure the voltage when the output pulse is not output. 3.0 3.5 4.0 V Checking output pulse for output with a voltage of 5 VDC applied, decrease the DC voltage and then measure the voltage when the output pulse is output. 1.3 1.8 2.3 V Input 8 (50%) Time Meas Output 13 (50%) 0V 2 Output waveform Output 13 (50%) 1µS V11H 50kHz 2VP-P Out put pin 11 DC voltage must be applied. 15 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR TEST CIRCUIT V11 V10 100p 111 V S/S IN V TIME 10 GATA SW 43k 10µ 12 V S/S OUT V DET 9 V IN 8 4.7µ 13 VD+ ONT TP13 R8 2 1 0.0068µ TP14 14 HD+ OUT COMP/H DET 7 TP15 15 HD- OUT COMP/H IN 6 4.7µ R6 2 A 1 2 16 5V 1 VCC GND 5 GREEN IN 4 R16 0.01µ 47µ 75k 17 CLAMP+ OUT TP17 3.3µ 18 TP18 H. POL. CLAMP SW R4 2 1 3 V3 TP19 19 V. POL. V. STATE 2 TP2 TP2 CLAMP TIMING H. STATE 1 TP1 4.3k 20 220p : 5V Units Resistance : Ω Capacitance : F 6 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR DESCRIPTION OF PIN Pin No. 1 2 Name Pin voltage H.STATE 0 VDC or 5 VDC V.STATE 0 VDC or 5 VDC Peripheral circuit of pins Description of function 1 Logic output pin for horizontal synchronous signal When pin 6 input signal is POSI, outputs "H"; when NON, outputs "L"; and when NEG, outputs "H". 1 Logic output pin for vertical synchronous signal When pin 8 input signal is POSI, outputs "H"; when NON, outputs "L"; and when NEG, outputs "H". 20 kΩ Same as pin 0.1mA 3 CLAMP SW 28kΩ 3.1V ≈2.2V when open 3 1.3V 20kΩ 4 GREEN IN 22kΩ 20kΩ ≈2.8V when open 3.5V 4 GND Grounding 1.5kΩ 1.5kΩ 20kΩ 6 COMP/H IN ≈2.5V when open 20kΩ 6 10kΩ 2.8V 10kΩ 2.5V 0.3mA 12kΩ 7 COMP/H DET ≈2.5V when open (no signal) 10kΩ 2.2V 12kΩ External capacitance is required as a filter pin for detecting polarity and detecting non-input. As the value is larger, the ripple is smaller and less malfunction 2.5V occurs. However, this lowers the response speed of detection. 7 20kΩ Composite sync/H sync input pin. Bias is approx. 2.5V and impedance is 10kΩ. The internal double threshold comparator is used for shaping waveform and detecting polarity. Optimum input amplitude is 0.6 Vp-p at pin 6 . Up to approx. 50% of duty, waveform shaping and polarity detection can be done. 0.3mA 75kΩ 2.8V 7 GREEN (SYNC ON VIDEO) input pin Input with negative sync. Comparison of pin 4 input signal and reference voltage within the IC performs synchronous separation. 1kΩ 1kΩ 5 This SW is available to change the generating position of clamp pulse for input signal. (See Table 2.) VTH L =0 to1V VTH M =1.6 to 2.8V VTH H =3.4 to 5V 20kΩ 2.2V 8 V IN ≈2.5V when open Same as pin 6 V sync input pin Same as pin 6 9 V DET ≈2.5V when open (no signal) Same as pin 7 Same as pin 7 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR DESCRIPTION OF PIN (cont.) Pin No. Name Pin voltage Peripheral circuit of pins Description of function V TIME GATE SW pin Can select whether to output the pulse of VD portion from pin 14 , 15 output pluse. The threshold voltage is approx. 2.5V. VTH L=0 to 2V VTH H=3 to 5V 0.1mA 10 V.TEME GATE SW ≈3.2V when open 10 2.5V 30kΩ 20kΩ 0.1mA 11 11 V S/S IN 1kΩ 4kΩ 7.5kΩ 5.5kΩ V S/S IN pin Inputs a signal of having externally integrated composite sync for V sync separation. 1kΩ 1.75kΩ 20kΩ 0.2mA 0.2mA V S/S pulse output pin No problem occurs when current of approx. 6 mA flows to internal part of the IC. To improve the rising speed, connect a resistance between power supplies. 1kΩ 12 V S/S OUT 13 VD+OUT Same as pin 12 VD+ pulse output pin Same as pin 12 14 HD+OUT Same as pin 12 HD+ pulse output pin Same as pin 12 15 HD-OUT Same as pin 12 HD- pulse output pin Same as pin 12 16 VCC 17 CLAMP OUT 12 5V Power supply Same as pin 12 18 H.POL. 0 VDC or 5 VDC 19 V.POL. 0 VDC or 5 VDC Same as pin 1 Same as pin 1 CLAMP TIMING 3V 1.9V Logic output pin for horizontal synchronous signal When pin 6 input signal is POSI, outputs "L"; when NON, outputs "L"; and when NEG, outputs "H". Logic output pin for vertical synchronous signal When pin 8 input signal is POSI, outputs "L"; when NON, outputs "L"; and when NEG, outputs "H". 4kΩ 4kΩ 3.0V 20 CLAMP+ pulse output pin Same as pin 12 + CLAMP TIMING pin The clamp pulse width is determined depending on the external resistance and capacitance. As the resistance value and capacitance value are larger, the clamp pulse width is wider. 1.9V 20 0.4mA 0.2mA 8 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR Table 1 DECODER Logic Output Pin 6 input COMP/H Pin Table 2 Clamp Pulse Position NON POSI. NEG. NON POSI. NEG. NON POSI. NEG. POSI. NEG. NON. Input signal Output pin Input V 8 1 2 18 19 H H H H H H L L L L H H L H H L H H L L L H H H L L L L L H L L H L L H Pin Pin 4 Pin 17 output signal 6 Pin 3 "H" 4 trailing edge 6 leading edge 6 leading edge Table 3 Output Priority Order Output signal Input signal Pin 4 Pin 6 Pin Pin 8 Pins 12 3 , , 4 6 4 6 14 6 6 15 "H" "L" , 17 Pin 11 11 8 8 13 11 8 8 Pins 12 Pin 3 , , 4 4 4 4 15 14 "M" , 17 Pin 13 11 11 8 8 8 8 Table 4 Allowable Input Amplitude Voltage Pin 4 input amplitude VV 0 to 2.1(VP-P) Pin 6 input amplitude VS 0.5 to 2.5(VP-P) fH=10Hz to 200kHz VS 0.2 to 0.6(VP-P) fV=10Hz to 200Hz fH=10Hz to 200kHz Pin 8 input amplitude VS 0.5 to 2.5(VP-P) fV=10Hz to 200Hz 9 Pin 3 "M" 4 trailing edge 4 trailing edge Pin 3 "L" 4 trailing edge 6 trailing edge 6 trailing edge MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR APPLICATION METHOD 1. Input block 18kΩ 1) GREEN (SYNC ON VIDEO) IN (Pin 3 ) Comparison of pin 4 pin 6 Input signal Input with sync negative polarity. or pin 8 100Ω input signal and the reference voltage of 3kΩ the inside of the IC performs the synchronous separation. When the input at pin 4 is less than or equal to the reference voltage (2.8V) and the flowing current is more than or equal to the input This additional circuit (limiter) limits the amplitude to 0.6 VP-P. Fig. 4 sensitivity current (200 µ A or more), the signal is separated. When only a synchronous signal is input into pin 4 , the 30 If the IC does not operate normally with the video signal input, change the value of external resistance R to make the current optimum. capacity value is too big, output response becomes bad. 2) COMP/H IN, VIN (pins 6 and 8 ) The composite sync input is connected to pin 6 . H and V of the separate sync input are connected to pins respectively. For each of pins 6 and 8 6 and 8 , , the bias is 2.5V and the Operatable Maximum Duty (%) operatable amplitude and the duty are as shown in Figure 1. But, when impedance is 10 kΩ. The internal double threshold converter is R=56kΩ 25 20 R=75kΩ 15 3.3µ 10 5 If the duty ratio at pin R f=100kHz 0 0.2 0.4 0.6 0.8 1.0 Input Amplitude (VP-P) Each threshold voltage is set at a voltage ±0.3V away from this voltage. 6 4 0 used for shaping waveform and for detecting polarity. Average DC voltage of input signal is 2.5V. : 5V Fig. 1 is small as shown in Figure 2, the 50 optimum value is approx. 0.3 VP-P. If the duty ratio is large, the input amplitude and the reference value of duty test. Only 5V TTL input, decrease the amplitude by resistor splitting. In addition, Figure 4 shows an example for improving the capability of the allowable duty when the input amplitude is 0.7 VP-P or more. To use the IC out of the standard value, remove the filter from pins 7 and 9 , observe the waveform and check for a match with the waveform shown in Figure 5. Operatable Maximum Duty (%) optimum value is approx. 0.6 VP-P. Figure 3 shows the allowable 40 30 20 10 0 0 0.5 1 1.5 2 2.5 Input Amplitude (VP-P) 2.8V Fig. 3 2.5V 4.5V 2.2V Small POSI Duty NEG input Lsrge NEG Duty 2.5V 2.5V Fig. 2 POSI input 0.5V Fig. 5 10 MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR 3) Polarity detection and non-input detection (pins and 7 8 when COMP/H only is input or when both COMP/H and GREEN ) External capacitance is required as a filter pin to detect polarity are input. and non-input. As the value is larger, the ripple is smaller and less malfunction occurs. However, the response speed for 8 detection is lower. A sufficient external capacitance is 0.05 µF check the frequency of the input signal in use and the filter pin waveform with the duty ratio conditions, and then check that the value is 3.1V or more (2.8V in capability) with positive polarity input and 1.9V or less (2.2V in capability) with negative polarity input. 4) V S/S IN (pin 11 ) Input a signal of having externally integrated composite sync for V sync separation. 6 4 R=10kΩ 2 R=4.3kΩ 0 Composite sync input into pin 6 is output to pin is externally integrated and is input into pin separation. Clamp Pulse Width (usec) with input of 15 kHz and 10 uF with input of 60 kHz. However, With the waveform at pin 11 12 . Output at 11 10 12 100 1000 Clamp Timing Capacitance at Pin 20 (pF) for V sync , check that the H element has been fully dropped. The threshold levels of sync separation, given hysteresis, are 3. Sampling Pulse from VD Portion V TIME GATE SW (Pin 3.5V and 1.8V. 10 ) Whether to output the pulse of VD portion from pins Input waveform at pin 6 10 is "H" or OPEN, pulse of the VD 10 is "L", the pulse of the VD portion Output at pin 14 when the pin 10 is "H" or OPEN Output waveform at pin 13 2. Clamp Pulse 1) Clamp pulse width VD portion CLAMP TIMING (Pin 20 ) The clamp pulse width is determined by the external resistance and the capacitance. As the resistance value and capacitance Output at pin 14 when pin 10 is "L" value are larger, the clamp pulse width is wider. The time constant is determined by the current flowing out of pin 20 Output at pin 15 when pin 10 is "H" or OPEN and the capacitance value of the timing pin. The flow current at pin 20 is determined by the pin voltage and external resistance value. When the external resistance is 4.3 Ω (that is 700 uA) and VD portion the external capacitance is 220 pF, the pulse width is 0.4 usec. 2) Clamp pulse position CLAMP SW (pin When pin 3 3 ) is "M" or "L", fixing a higher-priority signal to the trailing edge results in occurrence of a clamp pulse. When pin 3 is 'H", and only GREEN is input, clamp pulse occurs at the trailing edge. A clamp pulse also occurs at the leading edge 11 15 portion is output. When pin VTH=3.5V VTH=1.8V and can be selected. When pin is not output. Waveform at pin 11 14 Output at pin 15 when pin 10 is "L" MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR 4. Output Stage 1) Logic output (pins 1 , 2 , and 18 19 ) The output format is as shown in the diagram below. When the internal load resistance of the IC is 20 kΩ, a current of approx. 3 mA flows to the inside of the IC, no problem will occur. 0.8 20k Ω 2) Pulse output (pins 12 , 13 , 14 , 15 ,and 17 ) The output format is as shown in the diagram below. When the internal load resistance of the IC is 1 kΩ, a current of Output Low Level (V) 0.6 0.4 0.2 approx. 6 mA flows to the inside of the IC, no problem will occur. To improve the rising speed, connect a resistance between power supplies. Note that the low level of the output pulse goes up. 0 0 2 4 6 6 10 ∞ External Resistance (kΩ) 1k Ω TYPICAL CHARACTERISTICS THERMAL DERATING (MAXIMUM RATING) POWER DISSIPATION Pd (mW) 1400 1237.6 1200 1000 SP 827.8 800 643.6 FP 600 430.5 400 200 0 -20 0 25 50 75 85 100 125 150 AMBIENT TEMPERATURE Ta (˚C) 12 13 220p H. STATE CLAMP TIMING Units Resistance : Ω Capacitance : F : 5V (POSI NON NEG) (POSI NON NEG) (POSI NON NEG) (POSI NON NEG) 1 2 19 V. STATE LOGIC 20 V. POL. 4.3k LOGIC CLAMP SW 56k H M L 3 CLAMP GEN 18 H. POL. GREEN IN 1.0µ 4 SYNC SW CLAMP+ OUT 17 3k 18k 5 0.01 µ GND EDGE SW 16 V TIME GATE COMP/H IN 100 3k 14 13 100 100p H L V TIME GATE SW 10 V. SYNC SEP. 11 V S/S IN 43k * External circuit for input of pins 6 and 8 When amplitude of up to 5 VP-P is entered into this circuit, can be kept constant at approx. 0.6 V P-P. When the duty of input signal at pins 6 and 8 changes, the most broad support range is obtained with ampl itude of 0.6 VP-P. 10µ 9 V DET 12 V S/S OUT V DET 4.7µ V IN 8 V SHAPE VD+ OUT 4.7µ 0.068µ 0.01 µ 7 H DET COMP/H DET 4.7µ 18k 6 H SHAPE 15 HD+ 47µ HD OUT OUT 4.7µ 0.01µ VCC5V MITSUBISHI ICs (Monitor) M52347SP/FP SYNC SIGNAL PROCESSOR APPLICATION EXAMPLE (fH=50kHz, fV=80 Hz)