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MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
I2C BUS Control 5-Input 2-Output AV Switch
Monolithic IC MM1495X
Outline
This IC is a 5-input, 2-output AV switch with I2C BUS control, developed for use in TV. This IC supports S2 and Cenelec standards.
Features
1. Serial control by I2C BUS. 2. 5 - inputs, 2 - outputs (2 of the 5 input lines can be used for either composite or Y) 3. Built-in sync separation circuit 4. Built-in Y/C mix circuit 5. Video and audio switches can be controlled independently. 6. 6dB amp built in to video and audio systems. 7. Output voltage gain can be varied by mounting an external resistor on the audio input pin. 8. Slave address can be changed: 90H or 92H 9. Built-in 3-value identification function
Package
SOP-44A (MM1495XF) SDIP-42A (MM1495XD)
Applications
1. TV 2. Other video equipment
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Block Diagram
CLAMP
Sync separation
Sync out
VCC GND
6dB
VINV1 VINV2 VINTV Y/V INS1 Y/V INS2
-6dB
VOUT1
COMB 1 COMB 2
6dB
YOUT YIN1 YIN2
+ C INS1 C INS2
6dB
6dB
COUT C IN1 C IN2
S/Comp judgment
S/Comp judgment
+
6dB
6dB
VOUT2 SCL SDA Address I/O1 (3-value) I/O2 (3-value) I/O3 (3-value) O4 O5 LOUT TV LOUT 1 LOUT 2 ROUT TV ROUT 1 ROUT 2
Mute
I2C BUS I2L Logic I/O
L INV1 L INV2 L INTV L INS1 L INS2
11.4k 11.4k 11.4k 11.4k 11.4k
16.6k 16.6k 16.6k 16.6k 16.6k
6dB 6dB 6dB
RINV1 R INV2 R INTV R INS1 R INS2
11.4k 11.4k 11.4k 11.4k 11.4k
6dB 6dB 6dB
BIAS
16.6k 16.6k 16.6k 16.6k 16.6k
Mute
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Pin Assignment
Typical model: MM1495XF
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 SOP-44A 1 2 3 4 5 6 7 8 9 10 11 LINTV RINTV VINTV LINV1 RINV1 VINV1 LINS1 Y/VINS1 RINS1 CINS1 I/O 1 12 13 14 15 16 17 18 19 20 21 22 LINS2 Y/VINS2 RINS2 CINS2 I/O 2 LINV2 RINV2 VINV2 I/O 3 O4 SyncOUT 23 24 25 26 27 28 29 30 31 32 33 SCL SDA CLAMP BIAS Address ROUTTV LOUTTV VOUT2 GND YIN2 ROUT2 34 35 36 37 38 39 40 41 42 43 44 CIN2 LOUT2 YIN1 VCC CIN1 ROUT1 VOUT1 LOUT1 YOUT O5 COUT
*XD has no 04 or Address pin.
Pin Description
Pin No. 1 2 4 5 7 9 12 14 17 18 3 6 8 13 19 32 36 Pin name LINTV RINTV LINV1 RINV1 LINS1 RINS1 LINS2 RINS2 LINV2 RINV2 VINTV VINV1 Y/VINS1 Y/VINS2 VINV2 YIN2 YIN1 Function Audio input
10A 11.4k 41.7V 25k
Internal equivalent circuit diagram
Video input (Composite or Y)
220
*Sync tip clamp
220 4.7V 25A
16.6k
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Pin No. 10 15
Pin name CINS1 CINS2
Function Video input with S detector (Croma)
Internal equivalent circuit diagram
2.25V 50A 5A 2.85V 1.1V 10A
15k 4.9V 220 220 25k
S-Det.
11 16 20
I/O1 I/O2 I/O3
Input / Output port
5A
VthH VthL
31 37 21 43
GND VCC O4 O5
GND VCC Output port
100A
22
Sync out
Sync separation output
80A
23
SCL
CLK input from I2C
3.1V 2.7V ~
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Pin No. 24
Pin name SDA
Function DATA input from I2C
Internal equivalent circuit diagram
3.1V 2.7V ~
27
Address
Address select
70k 30k
25
CLAMP
Clamp capacitor
20k 25k 800A 100A 25k 30A 11.65k 30k 13.42k 1k
26
BIAS
BIAS
28 29 33 35 39 41
ROUTTV LOUTTV ROUT2 LOUT2 ROUT1 LOUT1
Audio output
20A
30k
10A
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Pin No. 30 40
Pin name VOUT2 VOUT1
Function Video output (Composite)
Internal equivalent circuit diagram
7.5k 7.5k
100A
34 38
CIN2 CIN1
Video input from comb-filter (Croma)
15k
4.9V
220 25k 50A
42
YOUT
Video output (Y)
7.5k 7.5k
44
COUT
7.5k 7.5k
1k
1.5mA
220
Video output (Croma)
1.5mA
3.5mA
220
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Absolute Maximum Ratings
Item Storage temparature Operating temparature Supply voltage Allowable loss
(Ta=25C) Symbol TSTG TOPR VCC max. Pd Ratings -40~+25 -20~+75 12 1100 Units C C V mW
Recommended Operating Conditions
Item Operating temparature Operating voltage Symbol TOPR VOP Ratings -20~+75 +8~+10 Units C V
Electrical Characteristics
Item Current consumption Terminal voltage Video input Composite video input S video input Audio input Audio output Input impedance Croma input Audio L input Audio R input Threshold level S detect of CINS1 S detect of CINS2 Address detect I/O1 port detect I/O2 port detect I/O3 port detect VOUT1 Voltage gain Frequency characteristic Differential gain Differential phase Input dynamic range Output impedance Crosstalk L H L H L H
Typical model: MM1495XF (Except where noted therwise, Ta=25C, VCC=9V) Measurement conditions No signal 3, 6, 8, 10, 13, 15, 19, 32, 34, 36, 38 pin 30, 40 pin 42, 44 pin 1, 2, 4, 5, 7, 9, 12, 14, 17, 18 pin 28, 29, 33, 35, 39, 41 pin 10, 15, 34, 38 pin 1, 4, 7, 12, 17 pin 2, 5, 9, 14, 18 pin Min. Typ. Max. Units 41 58 75 mA 3.9 1.9 3.3 3.2 3.8 10 22 22 1.75 1.75 1.5 0.8 2.70 0.8 2.70 0.8 2.70 SIN wave: 1V 100kHz SIN wave: 1V 10MHz/100kHz Staircase signal 1V Staircase signal 1V SIN wave: 100kHz THD=1.0% use test circuit 2 3.58MHz, 1V 5.5 -1.0 -3 -3 1.6 4.2 2.1 3.6 3.5 4.1 15 28 28 2.25 2.25 2.0 1.1 2.85 1.1 2.85 1.1 2.85 6.0 0.0 0 0 1.9 (50) -60 4.5 2.3 3.9 3.8 4.4 20 34 34 2.75 2.75 2.5 1.4 3.00 1.4 3.00 1.4 3.00 6.5 1.0 3 3 V V V V V k k k V V V V V V V V V dB dB % V dB
Symbol ICC VVIN VVOUT VSOUT VAIN VAOUT ZCIN ZLIN ZRIN VthC1 VthC2 VthADR VthI1L VthI1H VthI2L VthI2H VthI3L VthI3H GV1 fV1 DGV1 DPV1 DV1 ZV1 CTV1
-55
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Item VOUT2 Voltage gain Frequency characteristic Differential gain Differential phase Input dynamic range Output impedance Crosstalk YOUT Voltage gain Frequency characteristic Differential gain Differential phase Input dynamic range Crosstalk COUT Voltage gain Frequency characteristic Differential gain (Note.1) Differential phase (Note.1) Input dynamic range Crosstalk Sync out Sync separation level L Sync out output voltage H LOUT1 Voltage gain Frequency characteristic Total harmonic distortion Output offset voltage Output dynamic range Crosstalk Ripple rejection ROUT1 Voltage gain Frequency characteristic Total harmonic distortion Output offset voltage Output dynamic range Crosstalk Ripple rejection
Symbol GV2 fV2 DGV2 DPV2 DV2 ZV2 CTV2 GY1 fY1 DGY1 DPY1 DY1 CTY1 GC1 fC1 DGC1 DPC1 DC1 CTC1 VSEPA VSOL VSOH GL1 fL1 THDL1 VOFFL1 DL1 CTL1 RRL1
Measurement conditions SIN wave: 1V 100kHz SIN wave: 1V 10MHz/100kHz Staircase signal 1V Staircase signal 1V SIN wave: 100kHz THD=1.0% use test circuit 2 3.58MHz, 1V
Min. Typ. Max. Units 5.5 -1.0 -3 -3 1.6 6.0 0.0 0 0 1.9 (50) -60 6.0 0.0 0 0 1.9 -60 6.0 0.0 0 0 3.25 -60 60 6.5 1.0 3 3 dB dB % V dB dB dB % V dB dB dB % V dB mV V V
-55 6.5 1.0 3 3 -55 6.5 1.0 3 3 -55 90 0.4
SIN wave: 1V 100kHz SIN wave: 1V 10MHz/100kHz Staircase signal 1V Staircase signal 1V SIN wave: 100kHz THD=1.0% use test circuit 2 3.58MHz, 1V SIN wave: 1V 100kHz SIN wave: 1V 10MHz/100kHz Staircase signal 1V Staircase signal 1V SIN wave: 100kHz THD=1.0% use test circuit 2 3.58MHz, 1V
5.5 -1.0 -3 -3 1.6
5.5 -1.0 -3 -3 2.75
30 Sync out: sink 2mA 4.8 SIN wave: 1V ( 1) 1kHz SIN wave: 1V ( 1) 1MHz/1kHz SIN wave: 1V ( 1) 1kHz DC offset at the switching time SIN wave: 1kHz THD=0.5% 1kHz, 1V ( 1) At 2.2k terminal VCC=9V+0.3V (100Hz: SIN wave)
*
*
1.0 -1.0 -30 2.6
*
*
1.5 0.0 0.03 0 2.8 -90 -45
dB dB % mV V ( 1) -80 dB
2.0 1.0 0.1 30
*
-40
dB
GR1 fR1 THDR1 VOFFR1 DR1 CTR1 RRR1
SIN wave: 1V ( 1) 1kHz SIN wave: 1V ( 1) 1MHz/1kHz SIN wave: 1V ( 1) 1kHz DC offset at the switching time SIN wave: 1kHz THD=0.5% 1kHz, 1V ( 1) At 2.2k terminal VCC=9V+0.3V (100Hz: SIN wave)
*
*
1.0 -1.0 -30 2.6
*
*
1.5 0.0 0.03 0 2.8 -90 -45
dB dB % mV V ( 1) -80 dB
2.0 1.0 0.1 30
*
-40
dB
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Item LOUT2 Voltage gain Frequency characteristic Total harmonic distortion Output offset voltage Output dynamic range Crosstalk Ripple rejection ROUT2 Voltage gain Frequency characteristic Total harmonic distortion Output offset voltage Output dynamic range Crosstalk Ripple rejection LOUTTV Voltage gain Frequency characteristic Total harmonic distortion Output offset voltage Output dynamic range Crosstalk Ripple rejection ROUTTV Voltage gain Frequency characteristic Total harmonic distortion Output offset voltage Output dynamic range Crosstalk Ripple rejection
Symbol GL2 fL2 THDL2 VOFFL2 DL2 CTL2 RRL2
Measurement conditions SIN wave: 1V ( 1) 1kHz SIN wave: 1V ( 1) 1MHz/1kHz SIN wave: 1V ( 1) 1kHz DC offset at the switching time SIN wave: 1kHz THD=0.5% 1kHz, 1V ( 1) At 2.2k terminal VCC=9V+0.3V (100Hz: SIN wave)
Min. Typ. Max. Units 1.0 -1.0 -30 2.6 1.5 0.0 0.03 0 2.8 -90 -45 dB dB % mV V ( 1) -80 dB 2.0 1.0 0.1 30
*
*
*
*
*
-40
dB
GR2 fR2 THDR2 VOFFR2 DR2 CTR2 RRR2
SIN wave: 1V ( 1) 1kHz SIN wave: 1V ( 1) 1MHz/1kHz SIN wave: 1V ( 1) 1kHz DC offset at the switching time SIN wave: 1kHz THD=0.5% 1kHz, 1V ( 1) At 2.2k terminal VCC=9V+0.3V (100Hz: SIN wave)
*
*
1.0 -1.0 -30 2.6
*
*
1.5 0.0 0.03 0 2.8 -90 -45
dB dB % mV V ( 1) -80 dB
2.0 1.0 0.1 30
*
-40
dB
GLTV fLTV THDLTV VOFFLTV DLTV CTLTV RRLTV
SIN wave: 1V ( 1) 1kHz SIN wave: 1V ( 1) 1MHz/1kHz SIN wave: 1V ( 1) 1kHz DC offset at the switching time SIN wave: 1kHz THD=0.5% 1kHz, 1V ( 1) At 2.2k terminal VCC=9V+0.3V (100Hz: SIN wave)
*
* *
1.0 -1.0 -30 2.6
*
1.5 0.0 0.03 0 2.8 -90 -45
dB dB % mV V ( 1) -80 dB
2.0 1.0 0.1 30
*
-40
dB
GRTV fRTV THDRTV VOFFRTV DRTV CTRTV RRRTV
SIN wave: 1V ( 1) 1kHz SIN wave: 1V ( 1) 1MHz/1kHz SIN wave: 1V ( 1) 1kHz DC offset at the switching time SIN wave: 1kHz THD=0.5% 1kHz, 1V ( 1) At 2.2k terminal VCC=9V+0.3V (100Hz: SIN wave)
*
* *
1.0 -1.0 -30 2.6
*
1.5 0.0 0.03 0 2.8 -90 -45
dB dB % mV V ( 1) -80 dB
2.0 1.0 0.1 30
*
-40
dB
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Item I2C condition (Note.2) Input voltage L Input voltage H Low level output voltage High level input current Low level input current 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 VOL IIH IIL fSCL tBUF tHD ; STA tLOW tHIGH tSU ; STA tHD ; DAT tSU ; DAT tR tF tSU ; STO
Measurement conditions
Min. Typ. Max. Units 0.0 3.0 0.0 -10 -10 4.7 4.0 4.7 4.0 4.7 200 250 V V V A A kHz s s s s s ns ns 1000 ns 300 ns s 1.5 5.0 0.4 10 10 100
SDA sink 3mA SDA, SCL=4.5V SDA, SCL=0.4V
4.0
( ) The inside of parentheses is design guarantee value. ( 1) Effective value
*
(Note.1) Differential gain and Differential phase of COUT. The following combination is presumed as a case that a Y signal is left in the croma output terminal (COUT).
{
SDA
(1) At the time of the V-throughmode choice (2) When a Y signal is left with comb-filter for CIN1, the CIN2 input.
Do the measurement of differential-gain and differential-phase with the COUT terminal by the above mode. (Note.2) I2C condition
tBUF SCL
tR
tF
tHD:STA tLOW
P S
tHD:DAT
tHIGH tSU:DAT
tSU:STA
Sr
tSU:STO
P
(Note.3) Video inputs VINV1, VINV2, VINTV, Y/VINS1, Y/VINS2, YIN1 and YIN2 inputs are sync tip clamped, while CINS1, CINS2, CIN1 and CIN2 inputs are non-clamped.
SG6
SG5
SG2
SG1
SG4
SG3
MITSUMI
Measuring Circuit 1
GND
2.2 1 2 3 4 5 6 7 8 9 10 11 2.2 12 13 14 15 16 2.2 17 18 19 20 21 22 2.2 0.1 TP14 0.1 2.2 0.01 TP13 0.1 10 10 10 0.1 TP8 TP7 10 10 10 TP1 TP5 10 TP4 10 TP2 TP16 10k 10k 10k 10k 75 2.2 0.1 2.2 2.2 0.1 2.2 0.1 2.2 0.01 TP12 10 TP3 10k 10k 75 10k 75 10k 75
VCC(9V)
600
600
75
600
600
75
600
75
600
75
600
MM1495XF
75
600
75
10 10 10
TP6 TP9 TP10
10k 10k 10k
100
600
600
75
22
10k TP15
L INTV C OUT 44 RIN TV O5 43 VIN TV YOUT 42 L IN V1 L OUT1 41 RIN V1 VOUT1 40 VIN V1 ROUT1 39 CIN1 38 L IN S1 Y/V INS1 VCC 37 YIN1 36 RIN S1 CIN S1 L OUT 2 35 I/O1 CIN2 34 ROUT 2 33 L IN S2 Y/V INS2 YIN2 32 RIN S2 GND 31 VOUT2 30 CINS2 L OUTTV 29 I/O2 ROUTTV 28 L IN V2 Address 27 RIN V2 BIAS 26 VIN V2 I/O3 CLAMP 25 O4 SDA 24 Sync out SCL 23
0.047 90H 92H 10k TP11 10k
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
10k
10k
SCL
SDA
SG6
SG5
SG2
SG1
MITSUMI
Measuring Circuit 2
GND
2.2 1 2 3 4 5 6 7 8 9 10 11 2.2 12 13 14 15 16 2.2 17 18 19 20 21 22 2.2 0.1 TP14 0.1 2.2 0.01 TP13 10 10 10 0.1 TP8 10k 0.1 TP7 10k 10 10 TP5 10 TP1 10k 10 TP4 10 10k TP2 10k TP16 2.2 0.1 2.2 2.2 0.1 2.2 0.1 2.2 0.01 TP12 10k 10 TP3 10k
VCC (9V)
600
600
75
600
For measuring crosstalk
600
75
600
75
600
75
600
MM1495XF
75
600
75
10 10 10
TP6 TP9 TP10
10k 10k 10k
100
600
600
75
22
10k TP15
L INTV COUT 44 RIN TV O5 43 VIN TV YOUT 42 L IN V1 L OUT1 41 RIN V1 VOUT1 40 VIN V1 ROUT1 39 CIN1 38 L IN S1 Y/V INS1 VCC 37 YIN1 36 RIN S1 CIN S1 L OUT2 35 I/O1 CIN2 34 ROUT2 33 L IN S2 Y/V INS2 YIN2 32 RIN S2 GND 31 VOUT2 30 CINS2 L OUTTV 29 I/O2 ROUTTV 28 L IN V2 Address 27 RIN V2 BIAS 26 VIN V2 I/O3 CLAMP 25 O4 SDA 24 Sync out SCL 23
0.047 90H 92H TP11 10k
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
10k
10k
10k
SCL
SDA
MITSUMI
Measuring Circuit 3
GND DC 9V
10k TP16 10 10 10 10 10 TP5 TP4 10k 10k 10k 75 10k 10k
0.3VP-P SIN wave
600 1 2 3 4 5 6 7 8 9 10 11 2.2 12 13 14 15 16 2.2 17 18 19 20 21 22 2.2 0.1 0.1 2.2 0.01 10 10 10 0.1 TP8 0.1 TP7 2.2 0.1 2.2 2.2 0.1 2.2 0.1 2.2 0.01
2.2
10
600
75
600
600
note: Termination of audio input is 2.2k.
75
For measuring ripple rejection
600
75
600
75 10k 75 10k 75
75
600
MM1495XF
75
600
75
10 10 10 TP9 TP10
10k 10k 10k
100
600
600
75
22
10k
L INTV C OUT 44 RIN TV O5 43 VIN TV YOUT 42 L IN V1 L OUT 1 41 RIN V1 VOUT 1 40 R OUT1 39 VIN V1 L IN S1 CIN1 38 Y/V INS1 VCC 37 YIN1 36 RIN S1 CIN S1 L OUT2 35 I/O1 CIN2 34 ROUT2 33 L IN S2 Y/V INS2 YIN 2 32 RIN S2 GND 31 VOUT2 30 CINS2 L OUTTV 29 I/O2 ROUTTV 28 L IN V2 Address 27 RIN V2 BIAS 26 VIN V2 I/O3 CLAMP 25 O4 SDA 24 Sync out SCL 23
0.047 90H 92H 10k
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
10k
10k
10k
SCL
SDA
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
I2C BUS
SDA S:Start Condition P:Stop Condition A:Acknowledge
SCL S 12345678A12 8A P
I2C BUS is inter bus system controled by 2 lines (SDA, SCL). Data are transmitted and received in the units of byte and Acknowledge. It is transmitted by MSB first from the Start conditions. [Control registers] Control registers are data sent from the master for determining the switch conditions. The data format is set as shown in the following figure. Slave address 1 0 0 1 0 R/W 0 0/1 0 DATA1 b07 b06 b05 b04 b03 b02 b01 b00
S
A
A
Address byte DATA2 b17 b16 b15 b14 b13 b12 b11 b10 DATA3 b27 b26 b25 b24 b23 b22 b21 b20
A
A
P
Out of the Address byte, first 7bit are assigned to the slave address, while the residual 1bit is assigned to the R/W bit. Set the R/W bit to 0 when data are used control registers. As MM1495 slave address, either 90H or 92H can be selected according to the ADR terminal conditions. When ADR terminal is L, 90H is selected. The following figure indicates the control contents of control registers and switches. Each bit of control registers is reset to 0, when power-on. No. b07 DATA1 b06 Y, CIN1/2 b17 DATA2 LOUTTV ROUTTV b27 DATA3 O5 O4 b26 b25 Output port select O3 O2 O1 b16 b05 Y, COUT b15 Y/C select DATA condition b04 Mute LOUT1 ROUT1 b14 Mute LOUT2 ROUT2 b24 VOUT2 b23 b22 VOUT1 b13 b12 b03 b02 b01 Main V select b11 Sub V select b21 Sync sepa select b20 b10 b00
MM1495 consists of one address byte and three control data bytes (4bytes in total). All data over the limited length (5th and subsequent bytes) are fully neglected. For details of the control contents of switches, refer to the separate table.
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Switch Control Table
Main V select
Mode Input S/V V S FV V S1 S FV V V V Output VOUT1 Y/VINS2 Y/VINS2 +CINS2 Y/VINS2 Y/VINS1 Y/VINS1 + CINS1 Y/VINS1 VINV2 VINV1 VINTV S detect CS2 Low Open CS1 b02 Bus data Main select b01
b00 0 1
S2
*
Low
1
1
* * * *
Open
1
0
0 1 1 0
V2 V1 TV
* * *
Bus data Main select b01 1 0 1 1 0
0 0 0
1 1 0
* *
: Don't care
Main L / R select
Mode Input S2 S1 V2 V1 TV Output LOUT1 LINS2 LINS1 LINV2 LINV1 LINTV ROUT1 RINS2 RINS1 RINV2 RINV1 RINTV b02 1 1 0 0 0
b00
* * 1
0
*
Bus data Y/C select b05 b06 0 0 1 1
Main Y/C select
Mode Input Through Y/CIN S2 V through S through Y/CIN S1 V through S through Y/CIN V through V1 Y/CIN V through TV Y/CIN V through Output YOUT YIN1 YIN2 Y/VINS2 Y/VINS2 YIN1 YIN2 Y/VINS1 Y/VINS1 YIN1 YIN2 VINV2 YIN1 YIN2 VINV1 YIN1 YIN2 VINTV COUT CIN1 CIN2 Y/VINS2 CINS2 CIN1 CIN2 Y/VINS1 CINS1 CIN1 CIN2 VINV2 CIN1 CIN2 VINV1 CIN1 CIN2 VINTV Main V select mode V or FV S V or FV S V2 V
S2
*
0 1
* * 0
1
S1
*
0 1
* * 0
1
V2
V1
V
0 1
* 0
1
TV
V
0 1
* 0
1
*
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Sub V select
Mode Input S/V V S FV V S1 S FV V V V Output VOUT2 Y/VINS2 Y/VINS2 +CINS2 Y/VINS2 Y/VINS1 Y/VINS1 +CINS1 Y/VINS1 VINV2 VINV1 VINTV S detect CS2 Low Open CS1 b12 Bus data Main select b11
b10 0 1
S2
*
Low
1
1
* * * *
Open
1
0
0 1 1 0
V2 V1 TV
* * *
Bus data Sub select b11 1 0 1 1 0
0 0 0
1 1 0
*
Sub L / R select
Mode Input S2 S1 V2 V1 TV Output LOUT2 LINS2 LINS1 LINV2 LINV1 LINTV ROUT2 RINS2 RINS1 RINV2 RINV1 RINTV b12 1 1 0 0 0
b10
* * 1
0
*
Video mute
Mode Output VOUT1 VOUT2 Mute ON OFF ON OFF Bus data Video mute b03 b13 0 1 0 1
*
*
Audio mute
Mode Output LOUT1 ROUT1 LOUT2 ROUT2 LOUTTV ROUTTV Mute ON OFF ON OFF ON OFF b04 0 1 Bus data Audio mute b14
b15
*
0 1
* *
0 1
* *
*
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Sync sepa select
Mode S2 S1 V2 V1 TV VOUT2 VOUT1 YOUT Output Y/VINS2 Y/VINS1 VINV2 VINV1 VINTV VOUT2 VOUT1 YOUT Bus data Sync sepa select b22 b21 b20 1 1 0 1 0 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 1 0 0 1
Video input
Video output
Output port switching
Mode Port I/O1 I/O2 I/O3 O4 O5 Condition Open Low Open Low Open Low Open Low Open Low b27 Bus data Output port switching b26 b25 b24
* * * *
0 1
* * *
0 1
* *
0 1
*
0 1
b23 0 1
* * * *
* * *
* *
*
[Status registers] Status registers are data to inform the master of the device status. The data format is set as shown in the following figure. S Slave address 1 0 0 1 0 0 0/1 R/W 1 A Status register b37 b36 b35 b34 b33 b32 b31 b30 device status NA P
Address byte
Out of the Address byte, first 7bit are assigned to the slave address, while the residual 1bit is assigned to the R/W bit. Set the R/W bit to 1 when data are used status registers. As MM1495 slave address, either 91H or 93H can be selected according to the ADR terminal conditions. When ADR terminal is L, 91H is selected. Set the confirmation acknowledgement after the end of status register to non-acknowledgement. The following figure shows the correspondence of the output data of status registers. b37 b36 b35 b34 b33 b32 b31 CINS2 b30 CINS1
Input port detect I/O3 Low I/O3 High I/O2 Low I/O2 High I/O1 Low I/O1 High
S detect
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
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Input port detect: S detect:
I/O1~3 are identified by 3 values, and output according to the combinations shown in the following table. Judge the DC level of CINS1, the CINS2 terminal, and do the detection of the S input. I/O Low 1 1 0 I/O High 1 0 0 CINSn condition Internal voltage DC<1.75V b31 or b30 1 0
DC voltage of I/O1~3 DC < 0.8V = 1.4V < DC < 2.7V = = 3.0V < DC =
Application Circuit 1
470k Tuner input 470k 75 Video1 input 470k 470k 75 470k S-Video1 input 75 470k 2.2 2.2 0.1 2.2 2.2 0.1 2.2 0.1 2.2 0.01 100k 1 470k S-Video2 input 75 470k 75 11 2.2 0.1 2.2 0.01 100k 1 Video2 input 470k 470k 75 75 16 2.2 2.2 0.1 17 18 19 20 12 13 14 15 1 2 3 4 5 6 7 8 9 10
L INTV RIN TV VIN TV L IN V1 R IN V1 VIN V1 L IN S1 Y/V INS1 MM1495XF R IN S1 CIN S1 I/O1 L IN S2 Y/V INS2 R IN S2 CINS2 I/O2 L IN V2 R IN V2 VIN V2 I/O3 O4 Sync out
COUT 44 O5 43 YOUT 42 L OUT1
41 10 10k
C VCC Port L
Output1 TV Audio Output2
Y V R VCC
0.1
VOUT1 40 ROUT1 39 CIN1 38 VCC
37 10
COMB FILTER
COMB FILTER
YIN1 36 L OUT2 35 CIN2 34 ROUT2 33 YIN2 32 GND 31 VOUT2 30 L OUTTV
29 28 27 26 25 24 220 23 22 0.047 220 10k 10k 5V 5V
L
10
R
0.1
V L R
ROUTTV Address BIAS CLAMP SDA SCL
Port
VCC Sync VCC
10k
21 22
I 2C
10k
Note. (1) VOUT is set to 2.1V, while CIN is set to 4.2V. Be careful since the capacitor polarity may differ according to the comb filter bias. (2) The case that a Y element is left by the Comb-filter character is presumed the condenser of CIN1, CIN2, and there is it as 10F. You can use 0.01F when a Y element isn't left in the croma output of Comb-filter.
MITSUMI
I2C BUS Control 5-Input 2-Output AV Switch MM1495X
Application Circuit 2
470k Tuner input 470k 75 Video1 input 470k 470k 75 470k S-Video1 input 75 470k 75 FS 10k 4.7k 470k S-Video2 input 75 470k 75 FS 10k 4.7k 470k Video2 input 470k 75 FS 2.2 2.2 0.1 10k 4.7k 10k 2.2 0.1 2.2 0.01 2.2 2.2 0.1 2.2 2.2 0.1 2.2 0.1 2.2 0.01
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
L INTV RIN TV VIN TV L IN V1 R IN V1 VIN V1 L IN S1 Y/V INS1 MM1495XF R IN S1 C IN S1 I/O1 L IN S2 Y/V INS2 R IN S2 CINS2 I/O2 L IN V2 R IN V2 VIN V2 I/O3 O4 Sync out
C OUT 44 O5 43 YOUT 42 L OUT1
41 10k
C VCC Port L
Output1 TV Audio Output2
Y V R VCC
0.1
VOUT1 40 ROUT1 39 CIN1 38 VCC
37 10
COMB FILTER
COMB FILTER
YIN1 36 L OUT 2 35 CIN2 34 ROUT2 33 YIN2 32 GND 31 VOUT2 30 L OUT TV ROUT TV
29 28 27 22 0.047 220 24 220 23 10k 10k 5V 5V
L
10
R
0.1
V L R
Address CLAMP SDA SCL
BIAS 26
25
Port
VCC VCC
Sync
10k
I 2C
Note. (1) VOUT is set to 2.1V, while CIN is set to 4.2V. Be careful since the capacitor polarity may differ according to the comb filter bias. (2) The case that a Y element is left by the Comb-filter character is presumed the condenser of CIN1, CIN2, and there is it as 10F. You can use 0.01F when a Y element isn't left in the croma output of Comb-filter.

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