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PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
DESCRIPTION
The M52791 is AV switch semiconductor integrated circuit with I2C bus control . This IC contains 1-channel of 4-input audio switches and 1channel of 4-input video switches. Each audio switches and video switches can be controled independently . The video switches contain amplifiers can be controled a gain of output 0dB or 6dB .
PIN CONFIGURATION ( TOP VIEW )
VCC VIDEO 2 IN Lch 2 IN C 2 IN Rch 2 IN Y 2 IN VIDEO 3 IN Lch 3 IN C 3 IN Rch 3 IN Y 3 IN VIDEO 4 IN Lch 4 IN C 4 IN Rch 4 IN Y 4 IN DA BIAS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
FEATURES
*Video and stereo sound switches in one package *Wide frequency range ( video switch )..........DC~20MHz *High separation ( video switch ) .......Crosstalk -60dB ( typ. ) at 1MHz *Two types of packages are provided : SDIP with a lead pitch of 1.778mm ( M52791SP ) ; and SSOP with a lead pitch of 0.8mm ( M52791FP ) .
TUNER IN Lch T IN C IN Rch T IN Y IN Y/C SEPA V 1 OUT Lch 1 OUT C 1OUT Rch 1 OUT Y 1 OUT Y 2 OUT V 2 OUT C 2 OUT CHIP SELECT SDA SCL GND
APPLICATION
Video equipment
Outline 36P4E (Lead pitch :1.778mm)
PIN CONFIGURATION ( TOP VIEW ) RECOMMENDED OPERATING CONDITION
Supply voltage Rated supply voltage Maximum output current 4.7V ~ 9.3V 5V,9V 49mA(at 9V)
VCC VIDEO 2 IN Lch 2 IN C 2 IN Rch 2 IN Y 2 IN VIDEO 3 IN Lch 3 IN C 3 IN Rch 3 IN Y 3 IN VIDEO 4 IN Lch 4 IN C 4 IN Rch 4 IN Y 4 IN DA BIAS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
TUNER IN Lch T IN C IN Rch T IN Y IN Y/C SEPA V 1 OUT Lch 1 OUT C 1OUT Rch 1 OUT Y 1 OUT Y 2 OUT V 2 OUT C 2 OUT CHIP SELECT SDA SCL GND
Outline 36P2R-D (Lead pitch :0.8mm)
MITSUBISHI
1 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
BLOCK DIAGRAM
VCC 1 36 2 7 12
S V-SW 0/6dB
TUNER IN VIDEO 2 IN VIDEO 3 IN VIDEO 4 IN
31 C IN Y/C 34 Sepa. 32 Y IN
0/6dB
Y/C SEPA
Y 2 IN Y 3 IN Y 4 IN
6 11 16
Y-SW N
26
0dB 0/6dB
Y 1 OUT Y 2 OUT V 1 OUT V 2 OUT C 1 OUT C 2 OUT
25 30
C 2 IN C 3 IN C 4 IN
4 9 14
C-SW N
0dB 24 0/6dB
28
0dB
23
Rch T IN Rch 2 IN Rch 3 IN Rch 4 IN
33 5 10 15
R-SW R-MODE R M L 0dB
27
Rch 1 OUT
Lch T IN Lch 2 IN Lch 3 IN Lch 4 IN
35 3 8 13
L-SW L-MODE L M R 0dB
29
Lch 1 OUT
BIAS 18
BIAS
I2C Control
19 GND 17 DA 22
21 20
SDA SCL
CHIP SELECT
MITSUBISHI
2 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
DESCRIPTION OF PIN
Pin No.
1 2 6 7 11 12 16 32 36 3 5 8 10 13 15 33 35 4 9 14 34
Name
VCC VIDEO 2 IN Y 2 IN VIDEO 3 IN Y 3 IN VIDEO 4 IN Y 4 IN Y IN TUNER IN Lch 2 IN Rch 2 IN Lch 3 IN Rch 3 IN Lch 4 IN Rch 4 IN Rch T IN Lch T IN C 2 IN C 3 IN C 4 IN C IN
Peripheral circuit pins
DC voltage(V)
9V 3.6V
Remarks
5~9V Clamp in
4.7V
30K
4.7V
20K
17
DA
VOL max.=0.4V (at Iin=1mA)
MITSUBISHI
3 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
DESCRIPTION OF PIN (cont.)
Pin No.
18
Name
BIAS
Peripheral circuit pins
DC voltage(V)
4.2V
Remarks
30K
19 20
GND SCL VIL max.=1.5V VIH min.=3.0V
21
SDA
VIL max.=1.5V VIH min.=3.0V VOL max.=0.4V (at Iin=3mA)
22
CHIP SELECT
SLAVE ADDRESS 0~1.5V------90H 2.5V~Vcc---92H OPEN-------90H
70K
30K
MITSUBISHI
4 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
DESCRIPTION OF PIN (cont.)
Pin No.
26 28 30
Name
Y 1 OUT C 1 OUT V 1 OUT
Peripheral circuit pins
DC voltage(V)
C OUT 4.0V V OUT Y OUT SYNC CHIP DC=2.9V
Remarks
5K
5K
23 24 25
C 2 OUT V 2 OUT Y 2 OUT
C OUT 3.3V V OUT Y OUT SYNC CHIP DC=2.2V
27 29
Rch 1 OUT Lch 1 OUT
4.0V
1.5K
1.5K
15K
31
Y/C SEPA
SYNC CHIP DC=2.9V
5K
5K
MITSUBISHI
5 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
I C BUS
I 2C BUS(Inter IC BUS)is multi master bus system developed by PHILIPS . Two wires ( SDA - serial data, SCL - serial clock ) realize functions of start , stop , transferring data , synchronization and arbitration. The output stages of device connected to the bus must have an open drain or open collector in order to perform the wired-AND function .
2
SDA A MSB SCL
S P
A MSB LSB
LSB
1
2
3
4
5
6
7
8
9
1
2
9
S ; Start condition, a high to low transition of the SDA line while SCL is high P ; Stop condition, a low to high transition of the SDA line while SCL is high A ; Acknownledge Every byte put on the SDA line must be 8-bits long . Each byte has to be followed by an acknowledge bit. Data is transferred with the most significant bit (MSB ) first . The data on the SDA line must be stable during the HIGH period of the clock . The HIGH or LOW state of the data line can only change when the clock signal on the SCL line is LOW .
CONTROL
This IC controls 2-channel switchs with 2-byte data ( DATA1 and DATA2 ) . Video switches are controled by DATA1 , audio switches are controled by DATA2 .
S
SLAVE ADDRESS A
DATA1
A
DATA2
A
P
S : Start A : Acknowledge P : Stop
SLAVE ADDRESS
1 0 0 1 0 0 X 0
R/W bit Usually 0 ( W : Master transmitter transmits to slave receiver ) Possible to select 22PIN : Hi : 1,Lo : 0 6 -10 AUG.'98
MITSUBISHI
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
Data byte format
M52791 FUNCTION TABLE S SLAVE ADDRESS SLAVE ADDRESS SLAVE ADDRESS A DATA(D7~D0) A DATA(DF~D8) A P
A6 1
A5 0
A4 0
A3 1
A2 0
A1
A0 0 0/1
R/W 0
DATA1(D7~D0) CONT DATA CONT VIDEO SW CONT DATA S/N(S:1) V-SW D2 D1 0 0 0 0 1 1 1 1
D7 0 FIX
D6 0 FIX
D5 D4 SEPA AMP Y/C AMP
D3 V AMP1
D2 S/N
D1 D0 VIDEO SW CONT
D0 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1
V OUT Y/C SEPA T IN V 2 IN V 3 IN V 4 IN Y/C MIX T Y/C MIX 2 Y/C MIX 3 Y/C MIX 4
OUT Y OUT Y IN Y IN Y IN Y IN Y IN Y 2 IN Y 3 IN Y 4 IN
C OUT C IN C IN C IN C IN C IN C 2 IN C 3 IN C 4 IN
AMP GAIN CONT. DATA AMP DATA D5 SEPA AMP D4 0 0dB 1 6dB DATA2(DF~D8) CONT DATA CONT AUDIO SW CONT MODE DATA D9 D8 0 0 1 1 I/O CONT. DATA DA
AMP YC AMP 0 0dB 1 6dB
DATA D3
AMP V AMP 0 0dB 1 6dB
DF
DE AUDIO MODE
DD 0 FIX
DC 0 FIX
DB 0 FIX
DA I/O
D9 D8 AUDIO SW CONT
0 1 0 1
MUTE OUT Lch OUT 1 MUTE MUTE MUTE MUTE
R/R OUT Rch OUT 1 Lch OUT 1 MUTE Rch T IN MUTE Rch 2 IN MUTE Rch 3 IN MUTE Rch 4 IN AUDIO MODE CONT
L/L OUT Rch OUT 1 Lch OUT 1 Rch T IN Lch T IN Rch 2 IN Lch 2 IN Rch 3 IN Lch 3 IN Rch 4 IN Lch 4 IN
NORMAL OUT Rch OUT 1 Lch OUT 1 Lch T IN Lch T IN Lch 2 IN Lch 2 IN Lch 3 IN Lch 3 IN Lch 4 IN Lch 4 IN
Rch OUT 1 Rch T IN Rch 2 IN Rch 3 IN Rch 4 IN
OUT DA OUT 0 HI 1 LO
DATA DF 0 0 1 1
MODE DE 0 1 0 1 MUTE R/R L/L NORMAL
MITSUBISHI
7 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
ELECTRICAL CHARACTERISTICS
Parameter Supply voltage Circuit current VIDEO Symbol Vcc Vcc=9V,Vin=0Vp-p,Rl= Icc Vcc=5V,Vin=0Vp-p,Rl= Test condition
(Ta=25C,Vcc=9V,unless otherwise noted) Min. 4.7 Typ. 49 42 Max. 9.3 64 55 mA Unit V
f=100kHz,1Vp-p (0dB)(T V1OUT) Voltage gain G f=100kHz,1Vp-p (6dB)(T V1OUT) f=100kHz,1Vp-p (0dB)(Y V1OUT) f=100kHz,1Vp-p (6dB)(Y V1OUT) f=10MHz/100kHz,1Vp-p (0dB)(T V1OUT) Frequency characteristics F f=10MHz/100kHz,1Vp-p (6dB)(T V1OUT) f=10MHz/100kHz,1Vp-p (0dB)(Y V1OUT) f=10MHz/100kHz,1Vp-p (6dB)(Y V1OUT) Vcc=9V(0dB)(T V1OUT) Dynamic Range Vcc=5V(0dB)(T V1OUT) D Vcc=9V(0dB)(Y V1OUT) Vcc=5V(0dB)(Y V1OUT) ZIC Input impedance ZIV ZIY Crosstalk AUDIO f=1kHz ,1Vp-p (Vcc9V)(RT R1OUT) Voltage gain
Frequency characteristics
-0.5 5.5 -0.5 5.5 -2.0 -2.0 -2.0 -2.0 4 2 4 2 14 -
0 6 0 6 0 0 0 0
0.5 6.5 0.5 6.5 2.0 2.0 2.0 2.0 26 -54 dB k Vp-p dB dB
f=100kHz Maximum with distortion <1.0%
(C,C2,C3,C4) Clamp in(T,V2,V3,V4) Clamp in(Y,Y2,Y3,Y4) f=1MHz,1Vp-p T V1OUT (at V2 mode)
20 -60
CT
-0.5 -0.5 -1 5.5 -20 22 -
0 0 0 0.01 6.0 0 30 -90
0.5 0.5 1 0.05 20 38 -84 dB dB % Vp-p mV k dB
G F
f=1kHz ,1Vp-p (Vcc5V)(RT R1OUT) f=100kHz/1kHz , 1Vp-p(RT R1OUT) f=1kHz,2Vp-p,at 400HzHPF+30kHzLPF (RT R1OUT) f=1kHz ,Maximum with distortion<0.5% (RT R1OUT) (MODE:RT,R2,R3,R4 R1OUT ) (RT,R2,R3,R4,LT,L2,L3,L4 ) 1kHz,1Vp-p RT R1OUT(at R2 mode)
Total harmonic distortion THD
Dynamic Range
D
Output DC offset voltage VOFF
Input impedance Crosstalk
Z1 CT
MITSUBISHI
8 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
ELECTRICAL CHARACTERISTICS
Parameter Symbol I2C BUS CONTROL SIGNAL Max. input high voltage Min. input low voltage Low level output voltage(SDA) High level input current Low level input current SCL clock frequency
Time of bus must be free before a new transmission can start
(Ta=25C,Vcc=9V,unless otherwise noted) Test condition Min. Typ. Max. Unit
Hold time at start condition The low period of the clock The high period of the clock Setup time for start condition Hold time DATA Setup time DATA
Rise time of both SDA and SCL line Fall time of both SDA and SCL line
Setup time for stop condition
VIH VIL VOL IIH IIL fSCL tBUF tHD;STA tLOW tHIGH tSU;STA tHD;DAT tSU;DAT tR tF tSU;STO
3.0 0.0 SDA = 3mA SDA , SCL = 4.5 V SDA , SCL = 0.4 V 0.0 -10 -10 0.0 4.7 4.0 4.7 4.0 4.7 5.0 250 4.0
-
5.0 1.5 0.4 10 10 100 1000 300 S nS S kHz A V
I 2 C BUS CONTROL SIGNAL
SDA
tBUF tR tF tHD;STA
SCL
P S
tLOW tHD;STA tHD;DAT tHIGH tSU;DAT tSU;STA tSU;STO
Sr
P
MITSUBISHI
9 -10 AUG.'98
PRELIMINARY
Notice. This is not a final specification. Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52791SP/FP
AV SWITCH with I2C BUS CONTROL
Application Circuit Example
0.01 100
VCC
75 0.47
1 2 3 4
0.47
VCC VIDEO 2 IN Lch 2 IN C 2 IN
TUNER IN 36 Lch T IN 35 C IN 34
10 10 75
10 75 0.01
0.01
Rch T IN 33
0.47
10
5 Rch 2 IN
75 0.47
Y IN 32 Y/C SEPA 31 V 1 OUT 30 Lch 1 OUT 29
75 75 75
Y/C Sepa.
6 Y 2 IN
75 0.47
7 VIDEO 3 IN
10
8 Lch 3 IN
75 0.01
9 C 3 IN
10 75 0.47 75 0.47
C 1OUT 28 Rch 1 OUT 27
75
75
10 Rch 3 IN 11 Y 3 IN 12 VIDEO 4 IN 13 Lch 4 IN 14 C 4 IN 15 Rch 4 IN 16 Y 4 IN 17 DA
Y 1 OUT 26 Y 2 OUT 25 V 2 OUT 24 C 2 OUT 23
75
10 75 0.01
10 75 0.47 10K
CHIP SELECT 22 slave address Cange(VCC/GND)
220
SDA 21 SCL 20 GND 19
220 10K
5V 5V
10
10K
18 BIAS
Note how to use this IC Input signal with sufficient low impedance to input terminal. The capacitance of output terminal as small as possible. Set the capacitance between Vcc and GND near the pins if possible. Assign an area as large as possible for grounding. Power-on Reset The M52791 has an intermal power-on reset function that sets each control r egister to "0" during IC power ON. The power-on reset VTH has 2.5V.
MITSUBISHI
10 -10 AUG.'98

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