RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI RGB Video Amplifier with OSD Input Monolithic IC MM1381, 1382, 1383 Outline MM1381XD, MM1382XD and MM1383XD are wideband RGB video amplifiers with OSD input, developed for use in monitors. The main differences between them are video amp bandwidth and output rise time, and output fall time. Model MM1381 MM1382 MM1383 Video amp band 85MHz 110MHz 140MHz Output rise time 3.5nS 3.0nS 2.3nS Output fall time 4.5nS 4.0nS 3.3nS MM1382XD is described here as the representative model. MM1382 is a wideband video amp system with OSD input, developed for use in high resolution RGB monitors. MM1382 has three matched video amps with a blanking function. All DC control input is high impedance, and the operating range is set for easy interface with serial bus control systems, at 0~4V. The OSD section has three TTL inputs and DC contrast control. OSD signals have TTL input interface, and these signals are made internally so that OSD input low level and video black level are the same. OSD display color balance follows video signal color balance control adjustment. In addition, MM1382 has a built-in spot-killer circuit that protects the CRT when monitor power is turned off. Features 1. Built-in wideband video amp 110MHz @ -3dB (4VP-P output) 2. OSD input has TTL interface bandwidth 50MHz 3. Output voltage less than 0.1V for blanking 4. High-speed switching between VIDEO/OSD 5. Each channel has an independent drive pin for color balance adjustment 6. Built-in high impedance DC contrast control, 0~4V (> 40dB range) 7. Built-in high impedance DC drive control, 0~4V (±3dB range) 8. Built-in high impedance DC OSD contrast control, 0~4V (> 40dB range) 9. 7VP-P output swing (band slightly attenuated) 10Output can drive hybrid or discrete CRT drivers directly Package DIP-28C (MM1381XD, MM1382XD, MM1383XD) Applications 1. 2. 3. 4. High resolution RGB CRT monitors with OSD function AGC amps for video Gain and DC offset control LCD or CCD system interface amp MITSUMI Block Diagram RGB Video Amplifier with OSD Input MM1381, 1382, 1383 RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI Pin Description Pin no. Pin name Internal equivalent circuit diagram Pin Description 1 R OSD IN These inputs accept standard TTL input. Each 2 G OSD IN color is either completely ON (logic high) or 3 B OSD IN completely OFF (logic low). Connect unused pins to ground with a 47kΩ resistor. 4 VIDEO/OSD SWITCH This input accepts standard TTL input. H : OSD, L : VIDEO Connect OSD to ground with a 47kΩ resistor when not in use. 5 R VIDEO IN Video inputs. 8 G VIDEO IN These inputs must be AC coupled using a 11 B VIDEO IN capacitor of at least 1µF. The ideal capacitance is 10 (F. DC playback is done with these inputs. Also, serial resistor of approximately 33Ω must be used. 6 VCC1 Power supply pin (except for output stage). GND GND pins. 9 7 10 The GND pins are all connected internally, and 21 must be connected on the board as well. 12 VREF Used for internal reference additional filter capacitor. Voltage of this pin is 2.0V. 13 VIDEO CONTRAST 14 OSD CONTRAST 26 B DRIVE 27 G DRIVE 28 R DRIVE Contrast control pin : 4V no attenuation 0V attenuation over 60dB Drive control pin : 4V no attenuation 0V 12dB attenuation RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI Pin no. Pin name Internal equivalent circuit diagram Pin Description 15 CLAMP GATE These two pins accept TTL input and are active 16 BLANK GATE low. Clamp gate supplies video signal DC playback. Blank gate makes video output less than 200mV. 17 B CLAMP CAP External clamp capacitors are charged, then 19 G CLAMP CAP discharged to the correction voltage required 24 R CLAMP CAP for DC playback. Recommended value is 0.1µF. 18 B VIDEO OUT Video output. 20 G VIDEO OUT Output must have 390Ω impedance to obtain 23 R VIDEO OUT the correct black level. 22 VCC2 Output stage power supply pin. Internal connection to VCC1 does not exist. 25 RGB CUT OFF ADJUST Sets video output black level for all three channels. Range : 0~4V Minimum value for black level is limited to approximately 300mV. RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI Absolute Maximum Ratings *1 Item Symbol Ratings Units Storage temperature TSTG -55~+150 °C Power supply voltage VCC max. 15.0 V Input voltage range VIN max. GND <= VIN <= VCC V Video output current IO 28 mA Allowable loss Pd 2.5 W 2 kV Electrostatic breakdown 265 Pin temperature *16 °C Recommended Operating Conditions *2 Item Symbol Ratings Units Operating temperature TOPR -20~+70 °C Operating voltage VOPR 11.4~12.6 V DC Electrical Characteristics Item Consumption current 7 Video input resistance Clamp gate input voltage L Clamp gate input voltage H Clamp gate input current L Clamp gate input current H Blanking gate input voltage L Blanking gate input voltage H Blanking gate input current L Blanking gate input current H Reference voltage Input capacitor charging current Input capacitor discharge current Input capacitor bias discharge current Clamp cap charging current Clamp cap discharge current Clamp cap bias discharge current Output voltage L Output voltage H Black level output voltage Black level output voltage Output blanking voltage * Contrast/drive input current Cutoff input current Spot killer voltage (Except where noted otherwise, Ta=25°C, VCC1=VCC2=12V, V13=4V, V14=4V, VDRV=4V, VCG= 0V, VBG=4V, V4=0V, VC-o=1V) 3 Symbol VCC RIN VCGL VCGH ICGL ICGH VBGL VBGH IBGL IBGH VREF IICL+ IICLIICLB IOCL+ IOCLIOCLB VOL VOH VO VO VOBLK I13, 14 I26~28 IC-O VSPOT * Measurement conditions VCC1+VCC2, RL=∞ VCG=0V VCG=0V VCG=4V VCG=0V VCG=0V VCG=4V VC-O=0V VC-O=10V VC-O=1V 7 VC-O=1V VBG=0V Min. Typ. Max. Units 95 120 mA 100 Ω 0.8 1.2 V 1.6 2.0 V -1.5 -5.0 uA 0.01 1.0 uA 0.8 1.2 V 1.6 2.0 V -8 -11 uA 0.01 1.0 uA 2.0 V 450 750 uA -450 750 uA ±750 nA 450 750 uA -450 -750 uA 750 nA 50 100 mV 7.0 7.5 V 1.2 V ±20 ±250 mV 100 500 mV V13=V14=VDRV=0V~4V -125 -500 nA -1.0 10.6 uA V VCG=0V VCG=12V VBG=0V VBG=12V * V -O=0V~4V -1.5 11.2 RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI AC Electrical Characteristics *14 Item Symbol Video amp gain AV max. (Except where noted otherwise, Ta=25°C, VCC1=VCC2=12V, V13=4V, V14=4V, VDRV=4V, VCG=0V, VBG=4V, V4=0V. For AC tests, adjust output pins 16, 20 and 23 to 4V by hand.) AV1 AV2 AVD1 AVD2 Contrast attenuation 1 Contrast attenuation 2 Drive attenuation 1 Drive attenuation 2 Gain matching Gain change between amps Video amp distortion AVMAT AVMAT THD Video amp frequency bandwidth fBW Video output rise time Video output fall time Video amp isolation 1 Video amp isolation 2 Blanking output rise time Blanking output fall time Blanking rise delay time Blanking fall delay time Back-porch clamping pulse width tr tf VSEP1 VSEP2 tr-BLK tf-BLK trD-BLK tfD-BLK tpw OSD Electrical Characteristics Measurement conditions V13=4V, VDRV=4V VIN=400mVP-P V13=2V V13=0.25V VDRV=2V VDRV=0.25V V13=VDRV=4V 8 V13=4V~2V 9 VO=1VP-P, f=10kHz V13=4V, VDRV=3V VO=4VP-P 10, 11 VO=4VP-P 10 VO=4VP-P 10 V13=4V 12 V13=4V 10, 12 VO=1VP-P 10 VO=1VP-P 10 VO=1VP-P VO=1VP-P 13 * * Min. Typ. Max. Units 7.5 10.0 V/V 16.9 20.0 dB -6 dB -40 dB -4.5 dB -11 dB ±0.3 dB ±0.2 dB 1 % * * * * * * * * 200 110 MHz 3.0 4.0 -70 -50 8 14 23 20 nS nS dB dB nS nS nS nS nS (Except where noted otherwise, Ta = 25°C, VCC1=VCC2=12V, V13=4V, V14=4V, VDRV=4V, VCG=4V, VBG=4V, V4=4V, VC-o=1V) Item Symbol Input voltage OSD L VOSDL Input voltage OSD H VOSDH OSD selection input voltage L V4L OSD selection input voltage H V4H OSD selection input current L I4L OSD selection input current H I4H OSD black level output voltage VOUT-OSD OSD output voltage VP-P VOSD-O OSD output VP-P attenuation VOSD-O Output adjustment between channels VOSD-OMAT Output fluctuation between channels VOSD-OMAT Video to OSD switching time tr-OSDSW OSD-to-video switching time tr-OSDSW Video to OSD transfer delay trD-OSDSW OSD-to-video transport delay tfD-OSDSW OSD rise time tr-OSD OSD fall time tf-OSD OSD rise delay time trD-OSD OSD fall delay time tfD-OSD Video isolation rate to OSD1 Vfeed1 Video isolation rate to OSD2 Vfeed2 Measurement conditions V4=0V V4=12V VC-O=1V V14=4V, VDRV=2V V14=2V, VDRV=2V V14=4V, VDRV=2V V14=4V~2V, VDRV=2V V1=V2=V3=4V 15 V1=V2=V3=4V 15 V1=V2=V3=V13=V14=4V V1=V2=V3=V13=V14=4V V14=4V V14=4V V14=4V V14=4V V14=4V, V1=V2=V3=0V V14=4V, V1=V2=V3=0V * * Min. Typ. Max. Units 0.4 1.2 V 1.6 2.0 V 0.8 1.2 V 1.6 2.0 V -3.0 -5.0 uA 0.01 2.0 uA ±85 ±175 mV 4.5 VP-P 50 30 % ±2.0 % ±3.5 % 4 nS 11 nS 11 nS 12 nS 4 nS 10 nS 6.5 nS 9 nS -70 dB -60 dB RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI Notes : *1 Absolute maximum ratings are the limits over which the device may be damaged. *2 Operating ratings are the conditions for device functioning, but they do not guarantee s specific performance limit. Refer to the electrical characteristics section for guaranteed specifications and measuring conditions. Guaranteed specifications apply only to the listed conditions. If the device does not operate within the listed measuring conditions, there may be deterioration depending on the performance characteristics. *3 VCC supply pins 6, 9 and 22 must be connected as one externally in order to prevent internal damage during the VCC power supply on/switching cycle. *4 Human model. Discharge via 1.5kΩ from 100pF capacitor. *5 The typical specified value is +25°C, indicating the standard value of the most general parameter. *6 The specified supply current is VCC1 and VCC2 0 input current for RL=[symbol]. Please refer to the measuring circuit. VCC2 supply current also depends on output load. VCC2 load current is 8mA in the measuring circuit for video output of 1V DC. *7 Output voltage depends on the load resistor. The measuring circuit uses RL=390Ω. *8 Measure the gain difference between two amps. Vin=400mVP-P. *9 Measure Av max. attenuation, and measure the quantitative difference between any two amps. *10 Special test device on GND sealed PCB not requiring a socket. *11 Adjust input frequency from 10MHz (AV max. reference value) to -3dB corner frequency. *12 Measure the output level of two non-operational amps relative to the operating amp to check channel separation. *13 200nS minimum pulse width is guaranteed to 15kHz horizontal line. This limit is guaranteed at the design stage. When using a slower line speed, a clamp pulse with longer pulse width is required. *14 4V DC level is the AC output signal center voltage for AC testing. For example, when output is 4VP-P, the signal fluctuates between 2V DC and 6V DC. *15 trosd=11nS and tfosd=4ns for V1=V2=V4-0V and video input of 0.7V. The video output waveform is the waveform shown in the timing diagram, inverted. Therefore, Trosd is actually rise time, and Tfosd is actually fall time in this situation. *16 Solder for 10S. RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI Timing Diagram Blanking transmission delay and Rise/fall time VOH BLANK GATE 1.3V 1.3V VOL trD-BLK tfD-BLK 1V VIDEO OUT tr-BLK tf-BLK 0.5V 0.5V 0V Video OSD, OSD Video transmission delay and Switching time VOH OSD IN VOL VIDEO/OSD SWITCH VOH 1.3V 1.3V VOL trD-OSDS tfD-OSDS tr-OSDS VIDEO OUT 4VP-P tf-OSDS 2V 2V 1V OSD transmission delay and Rise/fall time VIDEO/OSD SWITCH VOH VOL VOH OSD IN 1.3V 1.3V VOL trD-OSD tfD-OSD tr-OSD VIDEO OUT 4VP-P 1V tf-OSD 2V 2V MITSUMI Measuring Circuit RGB Video Amplifier with OSD Input MM1381, 1382, 1383 MITSUMI Application Circuits RGB Video Amplifier with OSD Input MM1381, 1382, 1383