STMAV340 Low ON Resistance Quad, SPDT, Wide-Bandwidth Video Switch Features ■ Bi-directional operation ■ 4 input/output channels analog video switch ■ Wide bandwidth 300MHz ■ Low 4Ω 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 ■ All input/output pins are on the same side facilitates PCB routing ■ Data and control inputs provide the undershoot clamp diode ■ Guaranteed break-before-make timing ■ High ESD rating: > 2kV HBM ■ –40°C to 85°C operating temperature range ■ Suitable for both RGB and Composite-Video Switching ■ Available in a small TSSOP16 package Applications ■ Advanced TVs ■ Front projectors ■ LCD Monitors ■ Notebook PCs ■ DVD Players TSSOP16 Description The STMAV340 is a bidirectional quad (4 channel), high speed single pole/double throw (SPDT), 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 switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. STMAV340 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 enough to pass stringent requirements. The STMAV340 is able to simplify the PCB routing on inputs and outputs as well as reduce the overall BOM costs by eliminating the need for more costly input-output controllers. Order Codes Part Number Temperature Range Package Comments STMAV340 –40°C to +85°C TSSOP16 STMAV340TTR September 2005 Rev. 1 1/21 www.st.com 21 STMAV340 Contents 1 Summary Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Application Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 Power Supply Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Test Circuit and Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/21 STMAV340 1 Summary Description 1 Summary Description 1.1 Functional Description The STMAV340 is a high bandwidth, analog video switch. It is low ON-resistance and low I/O capacitance result in a very small propagation delay. When OE_N is set to LOW, the select (S) pin connects port A to the selected port B or port C output. When OE_N is set to HIGH, the switch is OPEN and a high-impedance state exists between the A port and B/C ports. Low differential gain and phase make this switch ideal for component and RGB video applications. This device has high bandwith and low crosstalk, making it ideal for high frequency applications as well. Figure 1. Functional Diagram 1B 1A 1C 2B 2A 2C 3B 3A 3C 4B 4A 4C Flow Cont rol OE_N S 3/21 STMAV340 2 Pin Configuration 2 Pin Configuration Figure 2. Pin Configuration (Top View ) Table 1. 1B 1 16 VCC 1C 2 15 OE_N 2B 3 14 S 2C 4 13 1A 3B 5 12 2A 3C 6 11 3A 4B 7 10 4A 4C 8 9 GND Pin Description Symbol Type Name and Functions OE_N IN Bus Switch Enable Note: 1 S IN Select Input 1A ,2A ,3A ,4A IN/OUT Port A; Analog Video I/Os 1B ,2B ,3B ,4B IN/OUT Bus B; Analog Video I/Os 1C, 2C, 3C, 4C IN/OUT Bus C; Analog Video I/Os VCC Power supply GND Ground Note: 1 Tie to VCC through a pull-up resistor. The minimum value of the resistor is determined by the current-sinking capability of the driver. Table 2. 4/21 Truth Table OE_N S ON Switch 0 0 1B,2B,3B,4B 0 1 1C,2C,3C,4C 1 X Disabled STMAV340 3 Application Diagrams Figure 3. STMAV340 2-to-1 Analog Video Switch Used in an LCD TV Figure 4. STMAV340 1-to-2 Analog Video Switch Used in a PC 3.1 3 Application Diagrams Power Supply Sequencing Proper power-supply sequencing is advised for all CMOS devices. Applying VCC before sending any signals to the input/output or control pins is recommended. 5/21 STMAV340 4 Maximum Ratings 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 = 25°C, GND= 0V Symbol Value Unit Supply Voltage to Ground -0.5 to + 7.0 V VS DC Switch Voltage -0.5 to + 7.0 V VIN DC Input Voltage -0.5 to + 7.0 V IIK DC Input Diode Current -50 mA IOUT DC Output Sink Current 128 mA DC V CC/GND Current ±100 mA -65 to 150 °C VCC ICC/IGND TSTG Note: 6/21 Parameter Storage Temperature Range 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. STMAV340 5 5 Electrical Characteristics Electrical Characteristics Table 4. Recommended Operating Conditions TA = -20 to +70°C Symbol Parameter (Note: 1) Test Conditions Min. Typ. Max. Unit 4.0 5.5 V VCC Power Supply Voltage VIN Input Voltage 0 5.5 V Output Voltage 0 5.5 V Switch Control Input 0 5 ns/V Switch I/O VOUT tr, tf Input Rise and Fall Time 0 DC ns/V TA Free Air Operating Temperature -40 +85 °C ESD-Human Body Model (HMB) Note: 1 -2 +2 kV Max. Unit 2.0 V -1.2 V VESD Note: 1 Unused 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 = -40°C to +85°C Symbol Parameter Test Conditions Analog Signal Range IIN = -18mA VCC(V) Min. 5 0 Typ. VIK Clamp Diode Voltage 4.5 VIH HIGH Level Input Voltage 4.0-5.5 VIL LOW Level Input Voltage 4.0-5.5 0.8 V 2.0 V II Input Leakage Current 0 ≤ VIN ≤ 5.5V 5.5 ±10 μA IOFF OFF-STATE Leakage Current 0 ≤ A, B ≤ VCC , C ≤ V CC 5.5 ±10 μA RON Switch ON resistance (1) VIN = 1.0V, ION = 13mA 4.5 3 7 Ω VIN = 2.0V, ION = 26mA 4.5 7 10 Ω ICC ΔICC Quiescent Supply Current VIN = VCC or GND, IOUT = 0 5.5 3 μA Increase in ICC per Input 5.5 2.5 mA One input at 3.4V Other inputs at VCC or GND Note: 1 Measured by the voltage drop between pin A and B/C pins at the indicated current through the switch. ON Resistance is determined by the lower of the voltages on the two (A or B/C) pins. 7/21 STMAV340 5 Electrical Characteristics Table 6. AC Electrical Characteristics TA = -40°C to +85°C, CL = 20pF, RU = RD = 75Ω Symbol Parameter Test conditions VCC = 4.5 - 5.5V Min. tPZH, tPZL Output Enable Time, Select to Bus B/C Output Enable Time, OE_N to Bus A, B/C tPHZ, tPLZ Output Disable Time, Select to Bus B/C Output Disable Time, Output Enable time OE_N to Bus A, B/C -3dB Bandwidth BW Typ. VI = 7V for tPZL VI = OPEN for tPHZ VI = 7V for tPLZ VI = OPEN for tPHZ RL = 150Ω Max. VCC = 4.0V Min. Unit Max. 5.2 5.1 5.7 5.6 ns ns 5.2 5.5 5.5 5.5 ns ns 300 MHz TA = 25°C XTALK Crosstalk RIN = 10Ω -58 dB 0.64 % 0.1 Deg. -60 dB RL = 150Ω, 10 MHz DG Differential Gain DP Differential Phase PIRR Table 7. Symbol Off Isolation RL = 150Ω f = 3.58 MHz RL = 150Ω f = 3.58 MHz RL = 150Ω 10 MHz Capacitance Parameter Test Conditions Min. Typ. Max. Unit CIN Control Pin Input Capacitance VCC = 5.0V 3 pF CI/O Input/Output Capacitance A Port VCC 7 pF Input/Output Capacitance B/C Port OE_N = 5.0V 5 pF Switch On Capacitance VCC = 5.0V, 12 pF CON OE_N = 0.0V 8/21 STMAV340 6 Test Circuit and Diagrams 6 Test Circuit and Diagrams Note: CL includes probe and jig capacitance. All input pulses are supplied by generators having the following characteristics: PRR = 10MHz, ZO = 50Ω, tr,tf = 2.5ns. Figure 5. AC Test Circuit VI RU FROMOUTPUT UNDERTEST 20 pF RD 75 Ω CL 9/21 STMAV340 6 Test Circuit and Diagrams Figure 6. AC Waveforms t f = 2. 5ns t r = 2. 5ns 90% ENABLE INPUT 3. 0V 90% 1. 5V 1. 5V 10% 10% t PZL GND t PLZ OUTPUT 1. 5 V VOL + 0. 3V VOL t PZH t PHZ VOH OUTPUT 10/21 1. 5 V VOH – 0. 3V STMAV340 Figure 7. 6 Test Circuit and Diagrams ON Resistance Test Circuit 11/21 STMAV340 6 Test Circuit and Diagrams Table 8. Test Test Circuit VCC RL CL V2B V2C VCC tON 4.75V ± 0.75V 4.75V ± 0.75V 75 75 20 20 GND VCC tOFF 4.75V ± 0.75V 4.75V ± 0.75V 75 75 20 20 GND VCC Figure 8. 12/21 Turn-on/Turn-off Test Circuit and Timing Diagram GND VCC GND STMAV340 6 Test Circuit and Diagrams Differential gain and phase are measured at the output of the ON channel. For example, when VSEL = 0, VOE_N = 0 and 1A is the input, the output is measured at 1B. Figure 9. Differential Gain/Phase Measurement Test Circuit 13/21 6 Test Circuit and Diagrams STMAV340 Frequency response is measured at the output of the ON channel. For example, when VSEL = 0, VOE_N = 0 and 1A is the input, the output is measured at 1B. All unused analog I/O ports are left open. Figure 10. Frequency Response (BW) Test Circuit 14/21 STMAV340 6 Test Circuit and Diagrams A 50Ω termination resistor is needed for the network analyzer. Crosstalk is measured at the output of the non-adjacent ON channel. For example, VSEL = 0, VOE_N = 0, and 1A is the input, the output is measured at 1C. All unused analog input ports are connected to GND through IOports and the output ports are connected to GND through the 50Ω pull down resistors. Figure 11. Crosstalk Test Circuit 15/21 6 Test Circuit and Diagrams STMAV340 A 50Ω termination resistor is needed for the network analyzer. Off-isolation is measured at the output of the OFF channel. For example, when VSEL = VCC, VOE_N = 0 and 1A is the input, the output is measured at 1B. All unsued analog input ports are left open, and the output ports are connected to GND through the 50Ω pulldown resistors. Figure 12. Off-Isolation Test Circuit 16/21 STMAV340 6 Test Circuit and Diagrams Figure 13. I/O Pin (Input Side) ESD Protection Circuit Figure 14. I/O Pin (Output Side) ESD Protection Circuit Figure 15. S and OE_N Input ESD Protection Circuit 17/21 7 Package Mechanical Data 7 STMAV340 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. 18/21 STMAV340 7 Package Mechanical Data Figure 16. TSSOP16 Mechanical Data TSSOP16 MECHANICAL DATA mm DIM. MIN. inch TYP. A MAX. MIN. TYP. MAX. 1.1 0.433 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 0.85 0.9 0.95 0.335 0.354 0.374 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 D 4.9 5 5.1 0.193 0.197 0.201 E 6.25 6.4 6.5 0.246 0.252 0.256 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 BSC 0.0256 BSC K 0o 4o 8o 0o 4o 8o L 0.50 0.60 0.70 0.020 0.024 0.028 A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 19/21 STMAV340 8 Revision History 8 Revision History Date Revision 09-Sep-2005 1 20/21 Description of Change First issue STMAV340 8 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 © 2005 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 21/21