MITSUMI I2C Bus Video Switch Monolithic IC MM1250 Outline This IC is an audio/video switch that supports an I2C bus for television. Features 1. 2. 3. 4. 5. 6. 7. 8. 9. Utilizes serial control by I2C bus 3 video input systems for 3 outputs, VOUT, YOUT and COUT VOUT has built-in 6dB amp VOUT has built-in output clamp circuit Audio system has built-in mute function 1 output port built-in Operating power supply voltage range 8~13V Video frequency response 10MHz Slave address 92H (fixed) Package SDIP-24A (MM1250XD) Applications I2C bus televisions, etc. I2C Bus Video Switch MM1250 I2C Bus Video Switch MM1250 MITSUMI Block Diagram Fig. 1 Block Diagram Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Allowable loss (Ta=25°C) Symbol TSTG TOPR VCC Pd Ratings -40~+125 -20~+75 15 1000 Units °C °C V mW I2C Bus Video Switch MM1250 MITSUMI Electrical Characteristics (Except where noted otherwise, Ta=25°C, VCC=8V~13V) Item Symbol Operating power supply voltage Consumption current VOUT output VCC ICC Measurement circuit VCC GV1 GV2 FV1 FV2 DGV1 DGV2 DPV1 DPV2 DV1 DV2 VOFFV ZIV ZOV2 TP9 TP7 TP9 TP7 TP9 TP8 TP9 TP8 TP9 TP8 TP9 GY1 GY2 TP1 TP1 FY1 TP1 FY2 TP1 Differential gain DGY TP2 Differential phase DPY TP2 DY1 DY2 VOFFY ZIY ZOY TP1 TP1 TP1 GC1 GC2 GC3 FC1 FC2 FC3 TP4 TP4 TP4 TP4 TP4 TP4 Differential gain DGC TP5 Differential phase DPC TP5 DC1 DC2 DC3 VOFFC ZIC ZOC TP4 TP4 TP4 TP4 Voltage gain Frequency characteristic Differential gain Differential phase Input dynamic Output offset voltage Input impedance Output impedance YOUT output Voltage gain Frequency characteristic Input dynamic range Output offset voltage Input impedance Output impedance COUT output Voltage gain Frequency characteristic Input dynamic range Output offset voltage Input impedance Output impedance Measurement conditions Min. Typ. Max. Units VCC=9V 8.0 17 25 13.0 V 33 mA SG1 : sine wave 1VP-P, 0.1MHz 5.5 6.0 6.5 dB -1.0 0 1.0 dB -3 0 3 % -3 0 3 deg SG1 : sweep signal, 1VP-P 10MHz/0.1MHz SG1 : staircase wave, 1VP-P APL=10, 50, 90% SG1 : staircase wave, 1VP-P APL=10, 50, 90% SG1 : range sine wave, 1kHz 2.1 VP-P VOUT1 pin DC level difference during switching VTV, VE1, VE2 10 10 0 15 20 ±30 20 30 mV kΩ Ω SG1 : sine wave, 1VP-P, 0.1MHz SG6 : sine wave, 2VP-P, 0.1MHz SG1 : sweep signal, 1VP-P 10MHz/0.1MHz SG6 : sweep signal, 2VP-P 10MHz/0.1MHz SG1 : staircase wave, 1VP-P APL=10, 50, 90% SG1 : staircase wave, 1VP-P APL=10, 50, 90% SG6 : sine wave, 1kHz, Comp mode SG1 : sine wave, 1kHz, TH•S mode YOUT1 pin DC level difference during switching YIN 5.5 -0.5 6.0 0 6.5 0.5 dB dB -1.0 0 1.0 dB -1.0 0 1.0 dB -3 0 3 % -3 0 3 deg 10 8 0 15 15 ±30 20 22 mV kΩ Ω SG1 : sine wave, 1VP-P, 0.1MHz SG2 : sine wave, 1VP-P, 0.1MHz SG5 : sine wave, 2VP-P, 0.1MHz SG1 : sweep signal, 1VP-P, 10MHz/0.1MHz SG2 : sweep signal, 1VP-P, 10MHz/0.1MHz SG5 : sweep signal, 2VP-P, 10MHz/0.1MHz SG1 : staircase wave, 1VP-P APL=10, 50, 90% SG1 : staircase wave, 1VP-P APL=10, 50, 90% SG5 : sine wave, 1kHz, COMP mode SG1 : sine wave, 1kHz, TH mode SG2 : sine wave, 1kHz, S mode COUT1 pin DC level difference during switching CIN 5.5 5.5 -0.5 -1.0 -1.0 -1.0 6.0 6.0 0 0 0 0 6.5 6.5 0.5 1.0 1.0 1.0 dB dB dB dB dB dB -3 0 3 % -3 0 3 deg 4.2 2.1 VP-P 4.2 2.1 2.1 10 8 VP-P 0 15 15 ±30 20 22 mV kΩ Ω I2C Bus Video Switch MM1250 MITSUMI Item Symbol Measurement circuit ROUT output Voltage gain Total harmonic distortion Output noise voltage Mute noise GR THDR VNR VM1 TP6 TP6 TP6 TP6 Input dynamic range DR TP6 Output offset voltage TP6 Output impedance LOUT output Voltage gain Total harmonic distortion Output noise voltage Mute noise VOFFR ZIR1 ZIR2 ZOR GL THDL VNL VM2 TP3 TP3 TP3 TP3 Input dynamic range DL TP3 Output offset voltage VOFFL TP3 Input impedance Input impedance Output impedance OUT output Output voltage L Crosstalk VOUT2 YOUT COUT ROUT LOUT Pin DC voltage 1 pin voltage 2 pin voltage 3 pin voltage 4 pin voltage 5 pin voltage 6 pin voltage 7 pin voltage 8 pin voltage 9 pin voltage 10 pin voltage 11 pin voltage 12 pin voltage 13 pin voltage 14 pin voltage 15 pin voltage 16 pin voltage 17 pin voltage 18 pin voltage 19 pin voltage 20 pin voltage 21 pin voltage 22 pin voltage Measurement conditions sine wave, 2.5VP-P, 1kHz -0.5 0 0.5 dB sine wave, 2.5VP-P, 1kHz 0.01 0.1 % band 15kHz (except during mute) 3 30 µVrms during mute 200 600 µVrms SG3 : sine wave, 1kHz, total higher 2.0 Vrms harmonic distortion rate=0.5% ROUT pin DC level difference during switching 0 ±15 mV RTV 22 30 38 kΩ RE1, RE2 50 68 86 kΩ 60 80 100 Ω sine wave, 2.5VP-P, 1kHz sine wave, 2.5VP-P, 1kHz band 15kHz (except during mute) during mute SG3 : sine wave, 1kHz, total higher harmonic distortion rate=0.5% Lout pin DC level difference during switching LTV LE1, LE2 ZIL1 ZIL2 ZOL VOL TP10 Bit4=0 CTV CTY CTC CTR CTL TP7 TP1 TP4 TP6 TP3 4.43MHz 1 4.43MHz 2 4.43MHz 3 2.5VP-P, 1kHz 2.5VP-P, 1kHz Vt1 Vt2 Vt3 Vt4 Vt5 Vt6 Vt7 Vt8 Vt9 Vt10 Vt13 Vt14 Vt15 Vt16 Vt17 Vt18 Vt19 Vt20 Vt21 Vt22 Vt23 Vt24 Min. Typ. Max. Units -0.5 0 0.5 dB 0.01 0.1 % 3 50 µVrms 200 600 µVrms 2.0 Vrms 22 50 60 * * * VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal, S4=B VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal, BIT4=0 VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal VCC=9.0V, SG1~6=no signal 4.8 4.1 4.8 4.8 4.1 4.8 4.1 4.8 4.1 4.8 4.1 3.5 2.1 4.1 4.1 4.1 3.4 4.1 3.4 0 ±15 mV 30 68 80 38 86 100 kΩ kΩ Ω 0.4 V -70 -70 -70 -80 -80 -60 -60 -60 -70 -70 dB dB dB dB dB 5.3 4.6 5.3 5.3 4.6 5.3 4.6 5.3 4.6 5.3 0.2 4.6 4.0 2.6 0 4.6 9 4.6 4.6 3.9 4.6 3.9 5.8 5.1 5.8 5.8 5.1 5.8 5.1 5.8 5.1 5.8 0.4 5.1 4.5 3.1 V V V V V V V V V V V V V V V V V V V V V V 5.1 5.1 5.1 4.4 5.1 4.4 I2C Bus Video Switch MM1250 MITSUMI I2C Bus Recommended Operating Conditions Item Input voltage L Input voltage H Clock frequency Data transfer wait time SCL start hold time SCL low level hold time SCL high level hold time SCL start setup time SDA data hold time SDA data setup time SCL rise time SCL fall time SCL stop setup time Symbol VIL VIH fSCL tBUF tHD : STA tLOW tHIGH tSU : STA tHD : DAT tSU : DAT tR tF tSU : STO (Refer to diagram below) Measurement conditions I2C logic low level discrimination value I2C logic high level discrimination value Min. Typ. Max. Units 0.7 V 2.1 5.0 V 100 kHz 4.7 µS 4.0 µS 4.7 µS 4.0 µS 4.7 µS 5.0 µS 250 µS 1000 nS 300 nS 4.0 µS Notes : 1 Crosstalk VOUT2 Input a 1VP-P, 4.43MHz sine wave to SG1. Given S1=A, S5=A, S6~S10= B, Bit=011 and TP7 amplitude V01, Combinations below : V02, then CTV is obtained as follows: CTV=20log (V02/V01) dB * I2C Bus control signals SDA tBUF tR tF SCL P Signal input S tHD:STA tLOW tHD:DAT Input amplitude 1VP-P tSU:DAT tSU:STA Sr tSU:STO P Switch status S1 A SG1 tHIGH B C Control bit S4 S5 S6 S7 S8 S9 S10 Bit2 Bit1 Bit0 A A B B B B B B A B B B B B - 0 1 - A B B B B B - 1 0 - B A B B B B - 1 1 - B A B B B B - 1 0 - B B B A B B - 1 1 A B B B A B B B B B B A B B - 0 1 SG6 2VP-P - - B B B B B A - 1 1 SG5 2VP-P - - B B B B A B - 1 1 SG2 1VP-P - B B B A B B B - 0 1 I2C Bus Video Switch MM1250 MITSUMI *2 Crosstalk YOUT Input a 1VP-P, 4.43MHz sine wave to SG1. Given S1=A, S5=A, S6~S10=B, Bit=111 and TP1 amplitude V03, Combinations below : V04, then Cty is obtained as follows: CTY=20log (V04/V03) dB Signal input *3 Input Switch status Control bit amplitude S1 S4 S5 S6 S7 S8 S9 S10 Bit2 Bit1 Bit0 SG1 1VP-P A - A B B B B B 0 1 1 SG6 2VP-P - B B B B B B A 0 0 1 - B B B B B A 1 1 1 SG5 2VP-P - - B B B B A B - 1 1 SG2 1VP-P - - B B A B B B - 1 1 Crosstalk COUT Input a 1VP-P, 4.43MHz sine wave to SG1. Given S1=A, S5=A, S6~S10=B, Bit=111 and TP5 amplitude V05, Combinations below : V06, then CTC is obtained as follows: CTC=20log (V06/V05) dB Signal input Input amplitude SG1 1VP-P SG6 2VP-P - SG5 2VP-P - SG2 1VP-P - S1 A B S4 B B B - S5 A B B B B B B Switch status S6 S7 B B A B B B B B B B B B B A S8 B B B B B B B S9 B B B B A A B S10 B B A A B B B Control bit Bit2 Bit1 Bit0 0 1 1 0 1 1 1 0 1 0 1 1 1 1 1 1 I2C Bus Video Switch MM1250 MITSUMI I2C Bus SDA MSB LSB MSB SCL 1 S 2 3 4 5 6 7 8 ACK 1 2 ACK P S:Start Condition P:Stop Condition ACK:Acknowledge The I2C bus (Inter IC Bus) is a bus system developed by Philips. Data is transferred on two lines, SDA and SCL. Data is transferred in byte units, and MSB is first from start condition. 1. Data format Slave address S 1 0 0 1 R/W 0 0 1 A 0 Control bits Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Address byte A P Control byte The first 7 bits of the address byte is the salve address, and the last bit is allocated as R/W bit. On MM1250XD, 92H is used for the slave address and 0 (write only) for the R/W bit. The A at the 9th bit is an acknowledge signal added for verification from slave. 2. Control byte format Control byte configuration on MM1250XD is allocated as shown in the table below. Each bit is set at "0" when power is turned on. Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 OUT Mute SW2 SW1 SW0 SW V, L, R control : Don't Care SW Y, C control Control Control results Control Control results SW1 SW0 MODE1 VOUT LOUT ROUT MODE1 S4 SW2 0 0 TV VTV LTV RTV TV - 0 Comp YIN CIN 0 1 E1 VE1 LE1 RE1 A 0 Comp YIN CIN 1 0 E2 VE2 LE2 RE2 B 0 S VE1 SCIN 1 1 TV VTV LTV RTV E2 - 0 Comp YIN CIN TV - 1 TH VTV VTV A 1 TH VE1 VE1 B 1 S VE1 SCIN - 1 TH VE2 VE2 Audio Mute control Out Port control Mute LOUT ROUT 0 SW•L SW•R 0 Low 1 Mute Mute 1 Open E1 E1 OUT Pin 13 status E2 Mode2 SW•Y SW•C I2C Bus Video Switch MM1250 MITSUMI Pin Description Pin no. Pin name 1 LTV 3 RTV 2 VTV 5 VE1 7 SCIN 9 VE2 18 CIN 20 YIN 4 LE1 6 RE1 8 LE2 10 RE2 11 SCL 12 SDA 13 OUT Internal equivalent circuit diagram Pin no. Pin name 14 VOUT1 15 VIN 16 VOUT2 17 GND 19 VCC 21 ROUT 23 LOUT 22 COUT 24 YOUT Internal equivalent circuit diagram MITSUMI Measuring Circuit I2C Bus Video Switch MM1250