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 6-Input 1-Output Video Switch MM1140 MITSUMI Pin Description Pin no. Pin name 1 IN1 2 SW1 3 IN2 4 SW2 5 IN3 6 GND 7 OUT Internal equivalent circuit diagram Pin no. Pin name 8 SW5 9 MUTE 10 SW3 11 IN4 12 SW4 13 IN5 14 VCC Internal equivalent circuit diagram 6-Input 1-Output Video Switch MM1140 MITSUMI 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 15 V Allowable loss Pd 350 mW Electrical Characteristics (Except where noted otherwise, Ta=25°C, VCC=5.0V) Item Symbol Measurement conditions Operating power supply voltage range VCC Consumption current Id Refer to Measuring Circuit Voltage gain GV Refer to Measuring Circuit Frequency characteristic FC Refer to Measuring Circuit Differential gain DG Differential phase Min. Typ. Max. Units 5.0 13.0 V 9.0 13.0 mA -0.5 0 +0.5 dB -1 0 +1 dB Refer to Measuring Circuit 0 ±3 % DP Refer to Measuring Circuit 0 ±3 deg Crosstalk CT Refer to Measuring Circuit -70 -60 dB Total harmonic distortion THD Refer to Measuring Circuit 0.01 0.3 % Output offset voltage Voff Refer to Measuring Circuit ±30 mV H VIH Refer to Measuring Circuit L VIL Refer to Measuring Circuit Switch input voltage 4.75 2.1 V 0.7 V Input impedance Ri 15 kΩ Output impedance Ro 25 Ω 6-Input 1-Output Video Switch MM1140 MITSUMI Measuring Procedures Item Symbol Consumption current Id (Except where noted otherwise, VCC=5.0V, VC1=VCC, VC2=0V) Switch Measuring Procedure state 1 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 GV Voltage gain 2 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 Frequency FC characteristic 2 V3, FC is obtained from the following formula. FC=20LOG (V3/V2) dB Differential gain DG 2 Differential phase DP 2 THD 2 Voff 3 Total harmonic distortion Output offset voltage 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. CT Crosstalk 9 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 Switch 1 input voltage Switch 2 input voltage Switch 3 input voltage Switch 4 input voltage Switch 5 input voltage H Impress different optional DC voltages on TP6 and TP7. Gradually VIH1 4 L VIL1 H VIH2 VIL2 H VIH3 Impress different optional DC voltages on TP6 and TP8. Gradually VIL3 H VIH4 VIL4 H VIH5 VIL5 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 8 L is VIH2. Gradually lower from VC3=VCC. TP2 voltage when TP6 Impress different optional DC voltages on TP6 and TP9. Gradually 7 L raise from VC3=0V. TP2 voltage when TP8 voltage is output on TP13 voltage is output on TP13 is VIL2. 6 L is VIH1. Gradually lower from VC3=VCC. TP1 voltage when TP6 voltage is output on TP13 is VIL1. 5 L raise from VC3=0V. TP1 voltage when TP7 voltage is output on TP13 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. 6-Input 1-Output Video Switch MM1140 MITSUMI Switch Conditions Table SW Conditions Control switching Input switching S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 1 1 1 0 0 0 0 0 1 0 0 1 1 1 1 0 0 0 0 0 1 0 1 1 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 Conditions 2 3 4 2 0 0 0 0 0 0 0 0 0 0 5 0 2 0 0 0 0 0 0 0 0 0 6 0 0 2 0 0 0 0 0 0 0 0 7 0 0 1 2 0 0 0 0 0 0 0 8 0 0 0 0 2 0 0 0 0 0 0 9 Combination of all control switching and input switching when no signal is output to TP14. Control Input-Output Table SW OUT 1 2 3 4 5 L L L - L IN1 H L L - L IN2 - H L - L IN3 - - H L L IN4 - - H H L IN5 - - - - H MUTE MITSUMI Measuring Circuit 6-Input 1-Output Video Switch MM1140