mm1327 Mitsumi Electronics, Corp., mm1327 Datasheet
mm1327
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mm1327 Summary of contents
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... Wide Discriminator Monolithic IC MM1327 Outline This IC identifies the letter box portion of wide broadcast, etc. video signals. The luminance and chroma signals are used so that the rate of identification on dark screens is increased. Output is the total of 6bit ADC data and character signal, etc. white peak signal discriminator bit, for 7bit data output. ...
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Block Diagram Pin Assignment SDIP- ...
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Pin Description Pin no. Pin name AGND 4 DGND 12 MAX 5 VCOM INT IN 8 Function Video signal input pin Composite output of input video signal maximum value Internal reference ...
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Pin no. Pin name INT OUT Integrated output pin and 9 S/H 10 sample and hold pins S/H of integration results at HD timing DA DAC output for consecutive 11 comparison ADC - - - - - - - - ...
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Pin no. Pin name NRZCLK Clock input pins for NRZ 17 discrimination IR 25 DELAY 26 Input CLK is integrated by resistor connected between Pin 25 and GND and internal 20pF, and delay is set by Pin 26 voltage. DATA ...
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Absolute Maximum Ratings Item Operating temperature Storage temperature Power supply voltage Input voltage Allowable loss Recommended Operating Conditions Item Operating temperature Operating voltage Symbol Ratings T -20~+75 OPR T -40~+125 STG V max. 7.0 CC GND < < ...
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Electrical Characteristics Item Consumption current MAX amp Clamping level MAX output pin voltage Maximum input level Y input voltage gain Maximum gain VCA Minimum gain I, Q gain difference EDTV II discrimination NRZ detection level NRZ detection readout timing NRZCLK ...
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Note Clamp level and MAX output pin voltage * Measure voltage on each pin when GPIN and HDIN are connected to V Note input voltage gain * Input a sweep signal to Y ...
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Timing Chart 1 1st field 2nd field 259H 260H 261H 262H Composite SCP VDO COMB-TB 1st field 2nd field 260H 261H 262H 263H Composite SCP VDO COMB-TB 4H ...
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Timing Chart 2 100IRE Y input I (Q) input MAX output tegrated output S ADCLX DATA PEAK The largest and Q video input signals is output on MAX output pin. 2. MAX ...
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Measuring Circuit ...