MM1093 MITSUMI | Alldatasheet

Document overview

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Technical content

Features

  1. Built-in fsc synchronized to input chroma signal and 4fsc oscillators 2. Reduced number of external parts due to 1 pin VCXO 3. +5V single power supply Package SOP-16A (MM1093NF, MM1093PF) DIP-16B (MM1093ND, MM1093PD)

Applications

  1. TV 2. VCR Equivalent Circuit Diagram

MITSUMI 4fsc Clock Generator MM1093 Pin Description Pin no. Pin name Equivalent Circuit Diagram Pin Description

1 Chroma input

2 ACC filter

3 APC1 filter

4 X'tal

fsc APC circuit filter pin VCXO circuit X'tal pin

5 GND1 fsc GND pin

6 GND2 4fsc GND pin

7 fsc output Outputs subcarrier synchronized to input chroma signal NTSC : 3.579545MHz PAL : 4.433619MHz

MITSUMI 4fsc Clock Generator MM1093 8 NC

9 Oscillator R

10 VCC1

11 VCC2

13 APC2 filter 4fsc APC circuit filter pin

Connects to resistor that determines 4fsc VCO free run frequency

12 Oscillator C Connects to capacitor that determines 4fsc

14 4fsc output Outputs a 4 signal sychronized to input chroma signal.

MITSUMI 4fsc Clock Generator MM1093

15 Burst gate filter

16 Composite input Composite signal input pin

This pin creates burst gate pulse. Absolute Maximum Ratings (Ta=25°C) Item Symbol Ratings Units Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+75 °C Power supply voltage VCC max. 7 V Allowable loss Pd 350 mW

MITSUMI 4fsc Clock Generator MM1093 Item Symbol Measurement Measurement conditions Min. Typ. Max. Unitscircuit Operating power supply voltage VCC VCC 4.7 5.0 5.3 V Consumption current ICC - 24 32 mA Sync separation circuit SG2 : 1VP-P staircase wave *1 Sync separation level VS TP3 SG1 : separate chroma signal 40 80 120 mV SW1 : B *5 PLL circuit ACC input amplitude range VIN TP1 SG1 : separate chroma signal *2 *5 15 560 mVP-P APC1 frequency fC SG1 : sine wave 143mVP-P

400 Hzacquisition range SG2 : 1VP-P staircase wave *3

VCO1 free run frequency deviation f0 *4 -250 0 250 Hz fSC output level VO1 TP2 SG1 : separate chroma signal SG2 : 1VP-P staircase wave *5 0.8 1.0 1.2 V P-P fSC output duty DO1 SG1 : separate chroma signal SG2 : 1VP-P staircase wave *5 45 50 55 % 4fSC circuit SG1 : separate chroma signal 4fSC output level VO2 SG2 : 1V P-P staircase wave 0.8 1.0 1.2 V P-P SW1 : B *5 SG1 : separate chroma signal 4fSC output DT DO2 TP3 SG2 : 1V P-P staircase wave 45 50 55 % SW1 : B *5 SG1 : separate chroma signal fSC leakage Lfsc SG2 : 1V P-P staircase wave 50 dB SW1 : B *5 Notes: *1 Sync separation level Measure the level where SG1 input signal and TP3 output signal synchronize when 1VP-P staircase wave sync signal level is raised from 0V. 1VP-P VS Hsync *2 ACC input amplitude range Defined as separate chroma signal burst signal amplitude that can be input to chroma input. *3 APC1 frequency pull-in range Defined as the smaller of the differences when input signal frequency is changed from high to fO and from low to fo when TP2 output is not synchronized to SG1 input signal and when it is synchronized. *4 VCO1 free run frequency deviation Defined as the difference between TP2 output signal frequency and fO. *5 The standard for the separate chroma signal is burst signal 143mVP-P. SG2 : 1VP-P staircase wave

MITSUMI 4fsc Clock Generator MM1093 Measuring Circuit Notes: *1 NTSC : R=5.6k PAL : 4.3k *2 Recommended crystal oscillator Tokyo Dempa, TR-49 or equivalent NTSC : 3.579545MHz PAL : 4.433619MHz *3 Use part with precision within ±5% and temperature characteristic CH. *4 R and C change according to board floating capacitance, etc. Select R and C so that Pin 13 voltage is approximately 2V for VCO lock. Also, C should be 4PF or higher, and R should be 3.3kΩ or higher.

MITSUMI 4fsc Clock Generator MM1093 Application Circuits Notes: *1 NTSC : R=5.6k PAL : R=4.3k *2 Recommended crystal oscillator Tokyo Dempa, TR-49 or equivalent NTSC : 3.579545MHz PAL : 4.433619MHz *3 Use part with precision within ±5% and temperature characteristic CH. *4 R and C change according to board floating capacitance, etc. Select R and C so that Pin 13 voltage is approximately 2V for VCO lock. Also, C should be 4PF or higher, and R should be 3.3kΩ or higher. *5 BPF Reference circuit