STMAV335
Low ON Resistance Triple, SP3T, Wide-Bandwidth Video Switch
Features
Bi-directional operation 3x3 input/3output channels analog video switch Wide bandwidth 300MHz Low 4 switch resistance between two ports Excellent RON matching between channels Minimal propagation delay through the switch Low quiescent current consumption V CC Operating Range: 4.0V to 5.5V Zero bounce in flow-through mode Control inputs compatible with TTL level Data and control inputs provide the undershoot clamp diode High ESD rating: > 2kV HBM 40C to 85C operating temperature range Suitable for both RGB and Component-Video Switching Available in a small TSSOP16 package
TSSOP16
Description
The STMAV335 is a bi-directional triple (3 channel) Single Pole/Triple Throw (SP3T) highspeed, low-power CMOS TTL-compatible analog video switch designed for advanced video applications which demand superior image quality. The low ON Resistance (R ON) of the sw itch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. STMAV335 is designed for very low cross-talk, low bit-to-bit skew, high channel-to-channel noise isolation and low I/O capacitance. The switch offers very little or practically no attenuation of the high-speed signals at the outputs, thus preserving the signal integrity to pass stringent requirements. Moreover the device reduces the overall BOM costs by eliminating the need for more costly multi input-output controllers.
Applications
Advanced TVs Front projectors LCD Monitors Notebook PCs DVD Players
Order Codes
Part Number STMAV335 Temperature Range 40C to +85C Package TSSOP16 Comments STM AV335TTR
January 2006
Rev. 1 1/21
www.st .com 21
STMAV335
Contents
1 Summary Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 .1 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 3
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Application Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 .1 Power Supply Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 5 6 7 8 9
Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 AC Loading and Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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STMAV335
1 Summary Description
1
1.1
Summary Description
Functional Description
The STMAV335 is a high bandwidth analog video switch. Its low ON-resistance and low I/O capacitance result in a very small propagation delay. The combination of SEL1 and SEL2 is used to either disable or enable the desired video channel. Refer to the truth table for the selection of the appropriate channels.
Figure 1.
Functional Diagram
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2 Pin Configuration
STMAV335
2
Figure 2.
Pin Configuration
Pin Configuration (Top View )
Table 1.
Pin Description
Type Name and Functions Bus Switch Enable. Tie to VCC through a pull-up resistor. The minimum value of the resistor is determined by the current-sinking capability of the driver. Analog Video I/Os Component 1; Analog Video I/Os Component 2; Analog Video I/Os RG B or Component 3; Analog Video I/Os Power supply G round
S y mb o l
SEL1, SEL2 Y/R, Pb/G, Pr/B Y1, Pb1, Pr1 Y2, Pb2, Pr2 R, G, B VCC GN D
IN IN/OUT IN/OUT IN/OUT IN/OUT
Table 2.
Truth Table
SEL1 0 0 1 1 SEL2 0 1 0 1 Component = YPbPr1 Component = YPbPr2 Component = RGB Switch disabled; external pull up resistor recommended Selection
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B 2rP 2rP 1rP 1rP DNG DNG G/bP R/Y 2LES 2LES
CCV CCV
9 9 01 01 11 11 21 31 31 41 41 51 51 61 61
8 7 7 6 6 5 5 4 3 2 2 1 1
B/rP G G 2bP 2bP 1bP 1bP R 2Y 1Y 1Y 1LES 1LES
STMAV335
3 Application Diagrams
3
Figure 3.
Application Diagrams
STMAV335 used in LCD TV as a 3-to-1 analog video switch
Figure 4.
STMAV335 used in PC as a 1-to-3 analog video switch
3.1
Power Supply Sequencing
Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply VCC before applying any signals to the input/output or control pins.
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4 Maximum Ratings
STMAV335
4
Maximum Ratings
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. Refer also to the STMicroelectronics SURE Program and other relevant quality documents.
Table 3.
Absolute Maximum Ratings TA = 25C, VSS= 0V
S y mb o l VCC VS VIN IIK IOUT ICC/IGND TSTG Supply Voltage DC Switch Voltage DC Input Voltage
Parameter
Value -0.5 to + 7.0 -0.5 to + 7.0 -0.5 to + 7.0 -50 128 100 -65 to 150
Unit V V V mA mA mA C
DC Input Diode Current DC Output Sink Current DC V CC/GND Current Storage Temperature Range
Not e:
Absolute maximum ratings are those values above which damage to the device may occur. Functional operation under these conditions is not implied. All voltages are referenced to GND.
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STMAV335
5 Electrical Characteristics
5
Table 4.
Electrical Characteristics
Recommended Operating Conditions TA = -20 to +70C, VSS = 0V
S y mb o l VCC VI N VOUT tr, tf TA VESD
Parameter (Note 1 ) Power Supply Voltage Input Voltage O utput Voltage Input Rise and Fall Time Free Air Operating Temperature ESD-Human Body Model (HBM) Note 2
Test Conditions
Min. 4.0 0 0
Typ.
M ax. 5.5 5.5 5.5 5 DC +85 +2
Unit V V V ns/V ns/V C kV
Switch Control Input Switch I/O
0 0 -40 -2
Note: 1 U nused control inputs must be held HIGH or LOW. They should not float. 2 In accordance with IEC61000-4-2, level 4 Table 5. DC Electrical Characteristics TA = -40C to +85C
S y mb o l Parameter Analog Signal Range VIK VIH VI L II IOFF Clamp Diode Voltage HIGH Level Input Voltage LOW Level Input Voltage Input Leakage Current OFF-STATE Leakage Current 0 VIN 5.5V 0 Y/R, Pb/G, Pr/B YX VCC, PbX VCC , PrX VCC R VCC, G VCC , B V CC VIN = 1.0V, ION = 13mA Switch ON resistance (1) VIN = 2.0V, ION = 26mA 4.5 4.5 5.5 5.5 3 7 7 10 3 2.5 A mA IIN = -18mA Test Conditions VCC(V) 5 4.5 4.0-5.5 4.0-5.5 5.5 5.5 2.0 0.8 10 10 M in. 0 Typ. Ma x . 2.0 -1.2 Unit V V V V A A
RON I CC
Quiescent Supply Current VIN = VCC or GND, IOUT = 0 Increase in ICC per Input O ne input at 3.4V O ther inputs at VCC or GND
ICC
Note: 1 Measured by the voltage drop between Y/R, Pb/G, Pr/B and YX/R, PbX/G, PrX/B pins at the indicated current through the switch. ON Resistance is determined by the lower of the voltages on the two.
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5 Electrical Characteristics
STMAV335
Table 6.
AC Electrical Characteristics TA = -40C to +85C, CL = 20pF, RU = RD = 75
S y mb o l
Parameter
Test conditions
VCC = 4.5 - 5.5V M in. Typ. Ma x . 5. 2 5. 1 5. 2 5. 5 300 -58 0.64 0.1 -60
VCC = 4.0V Min. M ax. 5.7
Unit
Output Enable Time Select to Bus YX/ R, PbX/G, PrX/B tPZH, tPZL Output Enable Time Select to Bus Y/R, Pb/G, Pr/B Output Disable Time Select to Bus YX/ R, PbX/G, PrX/B tPHZ, tPLZ Output Disable Time, Output Enable time OE_N to Bus A, B/C BW XTALK DG DP PIRR -3dB Bandwidth Crosstalk Differential Gain Differential Phase OFF Isolation
VI = 7V for tPZL VI = OPEN for tPHZ
ns 5.6 5.5 ns 5.5 MH z dB % Deg. dB
VI = 7V for tPLZ VI = OPEN for tPHZ RL = 150 TA = 25C RIN = 10 RL = 150, 10 MHz RL = 150 f = 3.58 MHz RL = 150 f = 3.58 MHz RL = 150 10 MHz
Table 7.
Capacitance TA = 25C, f = 1MHz
S y mb o l CIN
Parameter Control Pin Input Capacitance Input/Output Capacitance Port: Y/R, Pb/G, Pr/B Input/Output Capacitance Port: YX/R, PbX/G, PrX/B Switch On Capacitance
Test Conditions VCC = 5.0V VCC, SEL1, SEL2 = 5.0 V VCC = 5.0V,
Min.
Typ. 3 7 5
Ma x .
Unit pF pF pF
CI/O
CO N
Except SEL1,SEL2=5.0
12
pF
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L L
57 DR 57 DR
C C TSET REDNU TSET REDNU TUPTUO MORF TUPTUO MORF
Fp 02 Fp 02
UR UR
I I
V V
Figure 5. AC Test Circuit
Figure 6.
6
STMAV335
AC Loading and Diagrams
AC Waveforms
6 AC Loading and Diagrams
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V 3 .0 H OV
H OV V L OV V 3. 0 + L OV V 3. 0 + L OV
V 5.1 V 5.1
TUPT UO TUPT UO
Z HP Z HP t
H ZP t t
V 5. 1 V 5. 1
ZL P ZL P t
TUP TUO TUP TUO
L ZP t t
DNG DNG V 5. 1 V 0. 3 V 0. 3 s n 5. 2 = r t %09
%01 %01
%01 %01 V 5. 1 %09 s n 5. 2 = fft T U P NI EL B A N E EL B A N E
7 Test Circuits
STMAV335
7
Figure 7.
Test Circuits
Test Circuit to measure the on-resistance of the switch
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STMAV335
Figure 8. Enable/Disable Circuit and Timing Diagram
7 Test Circuits
Table 8.
Test
Test Circuit
VCC 4.75V 0.75V 4.75V 0.75V 4.75V 0.75V RL 75 75 75 75 75 75 CL 20 20 20 20 20 20 VY1 GND GND VCC GND GND VCC VPb1 G ND VCC G ND G ND VCC G ND VPr1 VCC GND GND VCC GND GND
Enable time (tpZL, tpZH)
4.75V 0.75V Disable Time 4.75V 0.75V (tpLZ, tpHZ) 4.75V 0.75V
Note: 1 C L includes probe and jig capacitance. 2 All input pulses are supplied by generators having the following characteristics: PRR 10MHz, ZO = 50, tr, tf = 2.5ns. 3 The outputs are measured one at a time, with one transition per measurement.
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7 Test Circuits
STMAV335
Differential gain and phase are measured at the output of the ON channel. For example, when SEL1, SEL2 = 0 and Y is the input, the output is measured at Y1. Figure 9. Differential Gain/Phase Measurement Test Circuit
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STMAV335
7 Test Circuits
Frequency response is measured at the output of the ON channel. For example, when SEL1,SEL2 = 0, and Y is the input, the output is measured at Y1. All unused analog I/O ports are left open.
Figure 10. Test Circuit for frequency response (BW)
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7 Test Circuits
STMAV335
Crosstalk is measured at the output of the non-adjacent ON channel. For example, when SEL1,SEL2 = 0, and Y is the input, the output is measured at Pb1. All unused analog input ports (Pb,Pr) and output ports (PbX,PrX) are connected to GND through 10 and 50 pulldown resistors respectively.
Figure 11. Crosstalk Test Circuit
Note:
50 termination resistor is needed for the network analyzer.
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STMAV335
7 Test Circuits
Off-Isolation is measured at the output of the OFF channel. For example, when SEL1=0, SEL2=VCC, and Y is the input, the output is measured at Y1. All unused analog input ports are left open, and output ports are connected to GND through 50 pull-down resistors.
Figure 12. Off-Isolation Test Circuit
Note:
50 termination resistor is needed for the network analyzer.
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7 Test Circuits
STMAV335
Figure 13. ESD protection circuit for Input side of I/O pin
Figure 14. ESD protection circuit for Output side of I/O pin
Figure 15. ESD protection circuit for SEL1, SEL2 inputs
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STMAV335
8 Package Mechanical Data
8
Package Mechanical Data
In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect . The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
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8 Package Mechanical Data
STMAV335
TSSOP16 MECHANICAL DATA
mm MIN. A A1 A2 b c D E E1 e K L 0o 0.50 0.05 0.85 0.19 0.09 4.9 6.25 4.3 5 6.4 4.4 0.65 BSC 4o 0.60 8o 0.70 0o 0.020 0.10 0.9 TYP. MAX. 1.1 0.15 0.95 0.30 0.20 5.1 6.5 4.48 0.002 0.335 0.0075 0.0035 0.193 0.246 0.169 0.197 0.252 0.173 0.0256 BSC 4o 0.024 8o 0.028 0.004 0.354 MIN. inch TYP. MAX. 0.433 0.006 0.374 0.0118 0.0079 0.201 0.256 0.176
DIM.
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
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STMAV335
8 Package Mechanical Data
Tape & Reel TSSOP16 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.7 5.3 1.6 3.9 7.9 12.8 20.2 60 22.4 6.9 5.5 1.8 4.1 8.1 0.264 0.209 0.063 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.272 0.217 0.071 0.161 0.319 MIN. TYP. MAX. 12.99 2 0.519 inch
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9 Revision History
STMAV335
9
Revision History
Date 23-Jan-2006 Revision 1 First Release Description of Change
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STMAV335
9 Revision History
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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