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PDF M52797FP Data sheet ( Hoja de datos )

Número de pieza M52797FP
Descripción AV SWITCH with I2C BUS CONTROL
Fabricantes Mitsubishi 
Logotipo Mitsubishi Logotipo



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No Preview Available ! M52797FP Hoja de datos, Descripción, Manual

PRELIMINARY
Notice. This is not a final specification.
Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52797SP/FP
AV SWITCH with I2C BUS CONTROL
DESCRIPTION
The M52797 is AV switch semiconductor integrated circuit with
I2C bus control .
This IC contains 1-channel of 4-input audio switches and 1-
channel 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 .
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 ( M52797SP ) ; and SOP with a lead pitch of 1.27mm
( M52797FP ) .
PIN CONFIGURATION ( TOP VIEW )
VCC 1
VCC 2
Lch 2 IN 3
VIDEO 2 IN 4
Rch 2 IN 5
Lch 3 IN 6
VIDEO 3 IN 7
Rch 3 IN 8
Lch 4 IN 9
VIDEO 4 IN 10
Rch 4 IN 11
SCL 12
SDA 13
NC 14
28 NC
27 Lch T IN
26 TUNER IN
25 Rch T IN
24 Lch 1 OUT
23 V 1 OUT
22 Rch 1 OUT
21 BIAS
20 V 2 OUT
19 D4
18 D5
17 CHIP SELECT
16 GND
15 GND
APPLICATION
Outline 28P4B
(Lead pitch :1.778mm)
NC: No connection
Video equipment
RECOMMENDED OPERATING CONDITION
PIN CONFIGURATION ( TOP VIEW )
Supply voltage
4.7V~9.3V
Rated supply voltage
5V,9V
Maximum output current 24mA(at 9V)
VCC 1
Lch 2 IN 2
VIDEO 2 IN 3
Rch 2 IN 4
Lch 3 IN 5
VIDEO 3 IN 6
Rch 3 IN 7
Lch 4 IN 8
VIDEO 4 IN 9
Rch 4 IN 10
SCL 11
SDA 12
24 Lch T IN
23 TUNER IN
22 Rch T IN
21 Lch 1 OUT
20 V 1 OUT
19 Rch 1 OUT
18 BIAS
17 V 2 OUT
16 D4
15 D5
14 CHIP SELECT
13 GND
Outline 24P2N-B
(Lead pitch :1.27mm)
MITSUBISHI
1-9
AUG.'98

1 page




M52797FP pdf
PRELIMINARY
Notice. This is not a final specification.
Some parametric limits are subject to change.
MITSUBISHI ICs (AV COMMON)
M52797SP/FP
AV SWITCH with I2C BUS CONTROL
I2 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 .
SDA
SCL
MSB
A
LSB MSB
A
LSB
S
12345678912
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
P
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 channel switchs with 1-byte data ( DATA1) .
S SLAVE ADDRESS A DATA1 A P
S : Start
A : Acknowledge
P : Stop
SLAVE ADDRESS
1 0 0 1 0 0X 0
R/W bit
Usually ` 0 ` ( W : Master transmitter transmits to slave
receiver )
Possible to select
17PIN Hi:1,Lo:0
MITSUBISHI
(at 28P4B)
5 -9
AUG.'98

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