MM1250 MITSUMI | Alldatasheet
Document overview
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- PDF pages: 9
Technical content
Features
- Utilizes serial control by I C bus 2. 3 video input systems for 3 outputs, V OUT , Y OUT and C OUT 3. V OUT has built-in 6dB amp 4. V OUT has built-in output clamp circuit 5. Audio system has built-in mute function 6. 1 output port built-in 7. Operating power supply voltage range 8~13V 8. Video frequency response 10MHz 9. Slave address 92H (fixed) Package SDIP-24A (MM1250XD)
Applications
I C bus televisions, etc.
Fig. 1 Block Diagram Absolute Maximum Ratings (Ta=25°C) Item Symbol Ratings Units Storage temperature T STG 40~+125 °C Operating temperature T OPR 20~+75 °C Power supply voltage V CC 15 V Allowable loss Pd 1000 mW
MITSUMI I2C Bus Video Switch MM1250 Item Symbol Measurement Measurement conditions Min. Typ. Max. Unitscircuit Operating power supply voltage VCC VCC 8.0 13.0 V Consumption current ICC VCC=9V 17 25 33 mA VOUT output Voltage gain GV1 TP9 SG1 : sine wave 1VP-P, 0.1MHz 5.5 6.0 6.5 dBGV2 TP7 Frequency characteristic FV1 TP9 SG1 : sweep signal, 1V P-P FV2 TP7 10MHz/0.1MHz -1.0 0 1.0 dB Differential gain DGV1 TP9 SG1 : staircase wave, 1V P-P DGV2 TP8 APL=10, 50, 90% -30 3 % Differential phase DPV1 TP9 SG1 : staircase wave, 1V P-P DPV2 TP8 APL=10, 50, 90% -3 0 3 deg Input dynamic DV1 TP9 SG1 : range sine wave, 1kHz 2.1 V P-P DV2 TP8 Output offset voltage VOFFV TP9 VOUT1 pin DC level difference during switching 0 ±30 mV Input impedance ZIV VTV, VE1, VE2 1 01 52 0 k Ω Output impedance ZOV2 1 02 03 0 Ω YOUT output Voltage gain GY1 TP1 SG1 : sine wave, 1V P-P, 0.1MHz 5.5 6.0 6.5 dB GY2 TP1 SG6 : sine wave, 2V P-P, 0.1MHz -0.5 0 0.5 dB FY1 TP1 SG1 : sweep signal, 1VP-P Frequency characteristic 10MHz/0.1MHz -1.0 0 1.0 dB FY2 TP1 SG6 : sweep signal, 2VP-P 10MHz/0.1MHz -1.0 0 1.0 dB Differential gain DGY TP2 SG1 : staircase wave, 1VP-P Differential phase DPY TP2 SG1 : staircase wave, 1VP-P APL=10, 50, 90% -3 0 3 deg Input dynamic range DY1 TP1 SG6 : sine wave, 1kHz, Comp mode 4.2 VP-P DY2 TP1 SG1 : sine wave, 1kHz, TH• S mode 2.1 Output offset voltage VOFFY TP1 YOUT1 pin DC level difference during switching 0 ±30 mV Input impedance ZIY YIN 10 15 20 k Ω Output impedance ZOY 81 5 2 2 Ω COUT output GC1 TP4 SG1 : sine wave, 1V P-P, 0.1MHz 5.5 6.0 6.5 dB Voltage gain GC2 TP4 SG2 : sine wave, 1V P-P, 0.1MHz 5.5 6.0 6.5 dB GC3 TP4 SG5 : sine wave, 2V P-P, 0.1MHz -0.5 0 0.5 dB FC1 TP4 SG1 : sweep signal, 1VP-P, 10MHz/0.1MHz -1.0 0 1.0 dB Frequency characteristic FC2 TP4 SG2 : sweep signal, 1VP-P, 10MHz/0.1MHz -1.0 0 1.0 dB FC3 TP4 SG5 : sweep signal, 2VP-P, 10MHz/0.1MHz -1.0 0 1.0 dB Differential gain DGC TP5 SG1 : staircase wave, 1VP-P Differential phase DPC TP5 SG1 : staircase wave, 1VP-P APL=10, 50, 90% -3 0 3 deg DC1 TP4 SG5 : sine wave, 1kHz, COMP mode 4.2 Input dynamic range DC2 TP4 SG1 : sine wave, 1kHz, TH mode 2.1 V P-P DC3 TP4 SG2 : sine wave, 1kHz, S mode 2.1 Output offset voltage VOFFC TP4 COUT1 pin DC level difference during switching 0 ±30 mV Input impedance ZIC CIN 10 15 20 k Ω Output impedance ZOC 81 5 2 2 Ω Electrical Characteristics (Except where noted otherwise, Ta=25°C, VCC=8V~13V)
MITSUMI I2C Bus Video Switch MM1250 Item Symbol Measurement Measurement conditions Min. Typ. Max. Unitscircuit ROUT output Voltage gain GR TP6 sine wave, 2.5V P-P, 1kHz -0.5 0 0.5 dB Total harmonic distortion THDR TP6 sine wave, 2.5V P-P, 1kHz 0.01 0.1 % Output noise voltage VNR TP6 band 15kHz (except during mute) 33 0 µVrms Mute noise VM1 TP6 during mute 200 600 µVrms Input dynamic range DR TP6 SG3 : sine wave, 1kHz, total higher 2.0 Vrmsharmonic distortion rate=0.5% Output offset voltage VOFFR TP6 ROUT pin DC level difference during switching 0 ±15 mV Input impedance ZIR1R TV 22 30 38 k Ω ZIR2R E1, RE2 5 06 88 6 k Ω Output impedance ZOR 60 80 100 Ω LOUT output Voltage gain GL TP3 sine wave, 2.5V P-P, 1kHz -0.5 0 0.5 dB Total harmonic distortion THDL TP3 sine wave, 2.5V P-P, 1kHz 0.01 0.1 % Output noise voltage VNL TP3 band 15kHz (except during mute) 3 50 µVrms Mute noise VM2 TP3 during mute 200 600 µVrms Input dynamic range DL TP3 SG3 : sine wave, 1kHz, total higher 2.0 Vrmsharmonic distortion rate=0.5% Output offset voltage VOFFL TP3 Lout pin DC level 0 ±15 mVdifference during switching Input impedance ZIL1L TV 22 30 38 k Ω ZIL2L E1, LE2 5 06 88 6 k Ω Output impedance ZOL 60 80 100 Ω OUT output Output voltage L VOL TP10 Bit4=0 0.4 V Crosstalk VOUT2 CTV TP7 4.43MHz *1 -70 -60 dB YOUT CTY TP1 4.43MHz *2 -70 -60 dB COUT CTC TP4 4.43MHz *3 -70 -60 dB ROUT CTR TP6 2.5V P-P, 1kHz -80 -70 dB LOUT CTL TP3 2.5V P-P, 1kHz -80 -70 dB Pin DC voltage 1 pin voltage Vt1 V CC=9.0V, SG1~6=no signal 4.8 5.3 5.8 V 2 pin voltage Vt2 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 3 pin voltage Vt3 V CC=9.0V, SG1~6=no signal 4.8 5.3 5.8 V 4 pin voltage Vt4 V CC=9.0V, SG1~6=no signal 4.8 5.3 5.8 V 5 pin voltage Vt5 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 6 pin voltage Vt6 V CC=9.0V, SG1~6=no signal 4.8 5.3 5.8 V 7 pin voltage Vt7 V CC=9.0V, SG1~6=no signal, S4=B 4.1 4.6 5.1 V 8 pin voltage Vt8 V CC=9.0V, SG1~6=no signal 4.8 5.3 5.8 V 9 pin voltage Vt9 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 10 pin voltage Vt10 V CC=9.0V, SG1~6=no signal 4.8 5.3 5.8 V 11 pin voltage Vt13 V CC=9.0V, SG1~6=no signal, BIT4=0 0.2 0.4 V 12 pin voltage Vt14 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 13 pin voltage Vt15 V CC=9.0V, SG1~6=no signal 3.5 4.0 4.5 V 14 pin voltage Vt16 V CC=9.0V, SG1~6=no signal 2.1 2.6 3.1 V 15 pin voltage Vt17 V CC=9.0V, SG1~6=no signal 0 V 16 pin voltage Vt18 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 17 pin voltage Vt19 V CC=9.0V, SG1~6=no signal 9 V 18 pin voltage Vt20 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 19 pin voltage Vt21 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 20 pin voltage Vt22 V CC=9.0V, SG1~6=no signal 3.4 3.9 4.4 V 21 pin voltage Vt23 V CC=9.0V, SG1~6=no signal 4.1 4.6 5.1 V 22 pin voltage Vt24 V CC=9.0V, SG1~6=no signal 3.4 3.9 4.4 V
MITSUMI I2C Bus Video Switch MM1250 I2C Bus Recommended Operating Conditions (Refer to diagram below) Item Symbol Measurement conditions Min. Typ. Max. Units Input voltage L VIL I2C logic low level discrimination value 0.7 V Input voltage H VIH I2C logic high level discrimination value 2.1 5.0 V Clock frequency fSCL 100 kHz Data transfer wait time tBUF 4.7 µS SCL start hold time tHD : STA 4.0 µS SCL low level hold time tLOW 4.7 µS SCL high level hold time tHIGH 4.0 µS SCL start setup time tSU : STA 4.7 µS SDA data hold time tHD : DAT 5.0 µS SDA data setup time tSU : DAT 250 µS SCL rise time tR 1000 nS SCL fall time tF 300 nS SCL stop setup time tSU : STO 4.0 µS SDA SCL tBUF P PS tHD:STA tHD:DAT tHIGH tSU:DAT tSU:STA tSU:STOtLOW Sr tR tF I2C Bus control signals Notes : *1 Crosstalk V OUT2 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 C TV is obtained as follows: CTV=20log (V02/V01) dB Signal input Input Switch status Control bit amplitude S1 S4 S5 S6 S7 S8 S9 S10 Bit2 Bit1 Bit0 AABBBBB - 01 ABABBBBB - ABBBBB - 10 SG1 1VP-P B - BABBBB - 11 - BABBBB - 10 - BBBABB - 11 CABBBABB - 01 BBBBABB SG6 2VP-P -- BBBBBA - 11 SG5 2VP-P -- BBBBAB - 11 SG2 1VP-P - BBBABBB - 01
MITSUMI I2C Bus Video Switch MM1250 *2 Crosstalk Y OUT 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: C TY=20log (V04/V03) dB *3 Crosstalk C OUT 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 C TC is obtained as follows: CTC=20log (V06/V05) dB Signal input Input Switch status Control bit amplitude S1 S4 S5 S6 S7 S8 S9 S10 Bit2 Bit1 Bit0 SG1 1VP-P A - ABBBBB0 1 1 SG6 2VP-P - BBBBBBA0 0 1 - BBBBBA1 1 1 SG5 2VP-P -- BBBBAB - 11 SG2 1VP-P -- BBABBB - 11 Signal input Input Switch status Control bit amplitude S1 S4 S5 S6 S7 S8 S9 S10 Bit2 Bit1 Bit0 SG1 1VP-P A - ABBBBB0 1 1 BBBABBBB - 01 SG6 2VP-P - - BBBBBA - 11 BBBBBBA - 01 SG5 2VP-P - BBBBBAB - 01 - BBBBAB1 1 1 SG2 1VP-P -- BBABBB - 11
MITSUMI I2C Bus Video Switch MM1250 I2C Bus MSB LSB MSB SDA SCL S 12345678 A C K A C K P12 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 S Slave address R/W A Control bits AP
10010010 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
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. Control Control results SW1 SW0 MODE1 VOUT LOUT ROUT
00 T V V TV LTV RTV
01 E 1 V E1L E1R E1
10 E 2 V E2L E2R E2
11 T V V TV LTV RTV
0S W • LS W • R
1 Mute Mute
0 Low
1 Open
MODE1 S4 SW2 Mode2 SW • YS W • C TV - 0 Comp Y IN CIN A 0 Comp Y IN CIN B0 S V E1S CIN E2 - 0 Comp Y IN CIN TV - 1T H V TV VTV A1 T H V E1V E1 B1 S V E1S CIN E2 - 1T H V E2V E2 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 OUT Mute SW2 SW1 SW0 : Don't Care SW V, L, R control Audio Mute control Out Port control SW Y, C control
MITSUMI I2C Bus Video Switch MM1250 Pin Description Pin no. Pin name Internal equivalent circuit diagram Pin no. Pin name Internal equivalent circuit diagram
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
14 VOUT1
15 VIN
16 VOUT2
21 ROUT
23 LOUT
17 GND
19 VCC
22 COUT
24 YOUT
MITSUMI I2C Bus Video Switch MM1250 Measuring Circuit