mm1067 Mitsumi Electronics, Corp., mm1067 Datasheet

Page 1

... Sync detection circuit (used for blue-back switching or tuner automatic channel selection, etc.) 4. Power supply voltage V = Ceramic resonator can be selected for use in either PAL or NTSC Package SOP-16A (MM1067XF) DIP-16A (MM1067XD) Applications VCR 3. Other video equipment Block Diagram No-adjustment Sync Separator + Sync Detector MM1067 ...

Page 2

... MITSUMI Pin Description Pin no. Pin name Internal equivalent circuit diagram Pin no. Pin name Video H.SYNC 3 V.INT 4 V.SYNC 5 C.SYNC No-adjustment Sync Separator + Sync Detector MM1067 Internal equivalent circuit diagram GAIN 8 SYNC.DET GND 11 OSC-OUT 12 OSC-IN1 13 OSC-IN2 14 LPF ...

Page 3

... Measuring horizontal sync signal pull-in range for PAL * With TP1 waveform not synchronized to signal 1, adjust signal 1 frequency toward 15.625kHz. The measurement value is the smaller of the synchronized frequency and the difference from 15.625. No-adjustment Sync Separator + Sync Detector MM1067 (Ta=25°C) Symbol Ratings ...

Page 4

... Gradually change the DC voltage impressed on TP2, and measure TP2 voltage when TP3 output switches. 9 Sync discrimination switching voltage measurement * Gradually change the DC voltage impressed on TP5, and measure TP5 voltage when TP6 output switches. No-adjustment Sync Separator + Sync Detector MM1067 Signal 1 TP1 waveform Input video signal ...

Page 5

... IC deviation. If this happens, change the resistance between Pins 13 and 14 as shown, and the bending will improve by several H from the top edge of the screen. Application Circuit 1 No-adjustment Sync Separator + Sync Detector MM1067 Note : * 1 ...

Page 6

... X 1. Resistors R1 and R2 should have precision of ±1%. 3. Capacitors C1 and C2 should have precision of ±5% and temperature characteristic of CH class. No-adjustment Sync Separator + Sync Detector MM1067 Note 2 : PAL 1. * CSB500F40 1.8k 390 2. The above 1. does not apply for application circuit 2 Pin 1 external circuit. ...