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| MITSUMI 6-Input 1-Output Video Switch MM1140 6-Input 1-Output Video Switch Monolithic IC MM1140 Outline This is a 6-input, 1-output high performance video switch for TV/BS signal switching. It is ideal for use when multiple input circuits are needed on 1 chip. Features 1. 2. 3. 4. Built-in mute function (mute pin : input possible) Crosstalk -70dB (at 4.43MHz) Power supply voltage 5~13V Frequency response 10MHz Package SOP-14B (MM1140XF) Applications 1. TV 2. VCR 3. Other video equipment Block Diagram MITSUMI 6-Input 1-Output Video Switch MM1140 Pin Description Pin no. Pin name 1 IN1 Internal equivalent circuit diagram Pin no. Pin name 8 SW5 Internal equivalent circuit diagram 9 MUTE 2 SW1 3 IN2 10 SW3 11 IN4 4 SW2 5 IN3 12 SW4 13 IN5 6 7 GND OUT 14 VCC MITSUMI 6-Input 1-Output Video Switch MM1140 Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Allowable loss (Ta=25C) Symbol TSTG TOPR VCC Pd Ratings -40~+125 -20~+75 15 350 Units C C V mW Electrical Characteristics Item (Except where noted otherwise, Ta=25C, VCC=5.0V) Symbol VCC Id GV FC DG DP CT THD Voff H L VIH VIL Ri Ro Measurement conditions Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Min. Typ. Max. Units 4.75 -0.5 -1 5.0 9.0 0 0 0 0 -70 0.01 2.1 0.7 15 25 13.0 13.0 +0.5 +1 3 3 -60 0.3 30 V mA dB dB % deg dB % mV V V k Operating power supply voltage range Consumption current Voltage gain Frequency characteristic Differential gain Differential phase Crosstalk Total harmonic distortion Output offset voltage Switch input voltage Input impedance Output impedance MITSUMI 6-Input 1-Output Video Switch MM1140 Measuring Procedures Item Symbol Id (Except where noted otherwise, VCC=5.0V, VC1=VCC, VC2=0V) Switch state 1 Measuring Procedure Connect a DC ammeter to the VCC pin and measure. VCC is 5V and the ammeter is shorted for use in subsequent measurements. Input a 2.0VP-P, 100kHz sine wave to SG, and obtain GV from the following formula given TP12 voltage as V1 and TP14 voltage as V2. GV=20LOG (V2/V1) dB For the above GV measurement, given TP14 voltage for 10MHz as Consumption current Voltage gain GV 2 Frequency characteristic FC 2 V3, FC is obtained from the following formula. FC=20LOG (V3/V2) dB Input a 2.0VP-P staircase wave to SG, and measure differential gain at TP14. APL=10~90% Proceed as for DG, and measure differential phase. Input a 2.5VP-P, 1kHz sine wave to SG, connect a distortion meter to TP14 and measure. Measure the DC voltage difference of each switch status at TP13. Assume VC1=2.1V, VC2=0.7V. Input a 2.0VP-P, 4.43MHz sine wave to SG, and given TP12 voltage as V4 and TP14 voltage as V5, CT is obtained from the following formula. CT=20LOG (V5/V4) dB Impress different optional DC voltages on TP6 and TP7. Gradually Differential gain Differential phase Total harmonic distortion Output offset voltage DG DP THD Voff 2 2 2 3 Crosstalk CT 9 Switch 1 input voltage H VIH1 4 VIL1 VIH2 5 VIL2 VIH3 6 VIL3 VIH4 7 VIL4 VIH5 8 VIL5 raise from VC3=0V. TP1 voltage when TP7 voltage is output on TP13 is VIH1. Gradually lower from VC3=VCC. TP1 voltage when TP6 voltage is output on TP13 is VIL1. Impress different optional DC voltages on TP6 and TP8. Gradually raise from VC3=0V. TP2 voltage when TP8 voltage is output on TP13 is VIH2. Gradually lower from VC3=VCC. TP2 voltage when TP6 voltage is output on TP13 is VIL2. Impress different optional DC voltages on TP6 and TP9. Gradually raise from VC3=0V. TP3 voltage when TP9 voltage is output on TP13 is VIH3. Gradually lower from VC3=VCC. TP3 voltage when TP6 voltage is output on TP13 is VIL3. Impress different optional DC voltages on TP9 and TP10. Gradually raise from VC3=0V. TP4 voltage when TP10 voltage is output on TP13 is VIH4. Gradually lower from VC3=VCC. TP4 voltage when TP9 voltage is output on TP13 is VIL4. Impress different optional DC voltages on TP6 and TP11. Gradually raise from VC3=0V. TP5 voltage when TP11 voltage is output on TP13 is VIH5. Gradually lower from VC3=VCC. TP5 voltage when TP6 voltage is output on TP13 is VIL5. L Switch 2 input voltage H L Switch 3 input voltage H L Switch 4 input voltage H L Switch 5 input voltage H L MITSUMI 6-Input 1-Output Video Switch MM1140 Switch Conditions Table SW Conditions S1 1 2 0 0 1 1 1 1 1 3 4 5 6 7 8 9 2 0 0 0 0 0 2 0 0 0 Control switching S2 0 0 0 1 1 1 1 S3 0 0 0 0 1 1 1 Conditions 2 0 0 2 1 0 0 0 0 2 0 0 0 0 0 2 S4 0 0 0 0 0 1 1 S5 0 0 0 0 0 0 1 S6 0 1 0 0 0 0 0 0 0 0 0 0 0 S7 0 0 1 0 0 0 0 0 0 0 0 0 0 Input switching S8 0 0 0 1 0 0 0 0 0 0 0 0 0 S9 0 0 0 0 1 0 0 0 0 0 0 0 0 S10 0 0 0 0 0 1 0 0 0 0 0 0 0 S11 0 0 0 0 0 0 1 0 0 0 0 0 0 Combination of all control switching and input switching when no signal is output to TP14. Control Input-Output Table SW 1 L H 2 L L H 3 L L L H H 4 L H 5 L L L L L H OUT IN1 IN2 IN3 IN4 IN5 MUTE MITSUMI 6-Input 1-Output Video Switch MM1140 Measuring Circuit |
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