ST STMUX7000 User Manual

STMUX7000

7-channel MUX/DEMUX for analog video signal

Features

■Low RON: 4.0 Ω typical

■VCC operating range: 3.0 to 3.6 V

■Enhanced ESD protection: > 8 kV (contact) and 8 kV (HBM)

■Channel on capacitance: 7.8 pF typical

■Designed for VGA signal switching

■Integrated switches for RGB, HSYNC, VSYNC and DDC signals

■Very low crosstalk: -45 dB at 250 MHz

■> 1000 MHz -3 dB typical bandwidth (or data frequency)

■Low power mode for minimum power consumption

■Package: QFN32L

QFN32 (3 x 6 mm)

Applications

	■ Audio/video switching		Description
			The STMUX7000 is a 7-channel
			multiplexer/demultiplexer low RON bidirectional
			designed for analog video signal, such as VGA. It
			is designed for very low crosstalk, and high
			bandwidth to maintain high signal integrity.
			The analog video signal multiplexed from one of
			two selected sources in the notebook and docking
			station while the unselected switch goes to Hi-Z
			status.
			The device is also protected against high ESD
			that supports up to 8 kV contact on all I/O pins.
			The device can be put into low power mode
			consuming minimum power.
	Table 1.	Device summary
		Order code	Package		Packing
		STMUX7000QTR	QFN32 (3 x 6 x 0.8 mm)		Tape and reel
	March 2011		Doc ID 17177 Rev 3		1/20
					www.st.com

Contents	STMUX7000

Contents

1	Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 3
2	Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 5
	2.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
3	Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
4	Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
5	Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18

2/20	Doc ID 17177 Rev 3

STMUX7000	Pin description

1 Pin description

Figure 1. Pin connection (top through view)

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Table 2.	Pin description
	Pin			Symbol			Name and function
	8			SEL 1			Selecion for bit 0, 1, 2, 3, 4
	30			SEL 2			Selection for bit 5, 6
1, 2, 5, 6, 7, 9, 10		A0, A1, A2, A3, A4, A5, A6					8-bit bus
4, 16, 23, 29, 32				VDD			Supply voltage
	3, 11, 28			GND			Ground
27, 25, 22, 20, 18, 14, 12		0B1, 1B1, 2B1, 3B1, 4B1, 5B1,					8-bit multiplexed to bus 1
				6B1
26, 24, 21, 19, 17, 15, 13		0B2, 1B2, 2B2, 3B2, 4B2, 5B2,					8-bit multiplexed to bus 2
				6B2
	31			LP			Low power mode enable

Doc ID 17177 Rev 3

3/20

Pin description

STMUX7000

Figure 2.

Input equivalent circuit

A0

0B1

A1

1B1

A2

2B1

A3

3B1

A4

4B1

0B2

1B2

2B2

3B2

4B2

SEL1

A5

5B1

A6

6B1

5B2

6B2

SEL2

LP

Low Power

Management

AM08684V1

Table 3.

Bit 0, 1, 2, 3, 4 switch function table

LP

SEL 1

Function

L

L

Bit 0, 1, 2, 3, 4 multiplexed to bus 1, bus 2 in Hi-Z

L

H

Bit 0, 1, 2, 3, 4 multiplexed to bus 2, bus 1 in Hi-Z

H

X

Bus 1 and 2 in Hi-Z

Table 4.

Bit 5, 6 switch function table

LP

SEL 2

Function

L

L

Bit 5,6 multiplexed to bus 1, bus 2 in Hi-Z

4/20	Doc ID 17177 Rev 3

STMUX7000				Pin description
	Table 4.	Bit 5, 6 switch function table
	LP		SEL 2	Function
	L		H	Bit 5,6 multiplexed to bus 2, bus 1in Hi-Z
	H		X	Bus 1 and 2 in Hi-Z

Doc ID 17177 Rev 3

5/20

Maximum rating	STMUX7000

2 Maximum rating

Stressing the device above the rating listed in the “absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Table 5.	Absolute maximum ratings
Symbol	Parameter	Value	Unit
VCC	Supply voltage to ground	-0.5 to 4.6	V
VIO	DC input output voltage	-0.5 to 4.6	V
VIC	DC control input voltage	-0.5 to 4.6	V
IO	DC output current(1)	120	mA
PD	Power dissipation	0.5	W
Tstg	Storage temperature	-65 to 150	°C
TL	Lead temperature (10 sec)	300	°C

1. If VIO x IO does not exceed the maximum limit of PD.

2.1Recommended operating conditions

Table 6.	Recommended operating conditions
Symbol	Parameter			Value		Unit
			Min	Typ	Max
VCC	Supply voltage to ground		3	-	3.6	V
VIC	DC control input voltage (SEL, LP)		0	-	5	V
VIO	DC input/output voltage		0	-	VCC	V
TA	Operating temperature		-40	-	85	° C

6/20	Doc ID 17177 Rev 3