LT1205 Linear Technology Corporation, LT1205 Datasheet
LT1205
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LT1205 Summary of contents
Page 1
... ESCRIPTIO The LT1203 is a wideband 2-input video multiplexer designed for pixel switching and broadcast quality rout- ing. The LT1205 is a dual version that is configured as a 4-input, 2-output multiplexer. These multiplexers act as SPDT video switches with 10ns transition times at toggle rates up to 30MHz. The – 3dB bandwidth is 150MHz and 0 ...
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... 15V 2V 400 5V 2V TOP VIEW ORDER PART + NUMBER OUT1 LT1205CS EN1 4 13 LOGIC OUT2 7 10 EN2 8 9 LOGIC 2 S PACKAGE = 150 C, = 100 C/W JA MIN TYP MAX ...
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... Differential Phase (Note 11) Insertion Loss The denotes specifications which apply over the specified temperature range. Note 1: The analog inputs (pins 1, 3 for the LT1203, pins for the LT1205) are protected against ESD and overvoltage with internal SCRs. CONDITIONS V = 15V 2V 400 ...
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... Pin 5 voltage = 5V. Apply 1VDC to pin 3 and measure the time for disappearance of 0.2V at pin 7 when pin 5 goes from and the power 0V. Pin 5 voltage = 5V. For the LT1205 the same test is performed on both MUXs. Note 10 input selected and R simultaneously. In disable the output impedance is very high and signal couples across the package ...
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... Supply Current vs Supply Voltage (Enabled) 9.6 LT1203 125° 25° 9.2 –55° 8.8 8.4 8.0 7 SUPPLY VOLTAGE (±V) LT1203/05 • TPC10 LT1203/LT1205 Crosstalk Rejection vs Frequency – ±15V 25°C – –50 – – 37.5 S – ...
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... LT1203/LT1205 W U TYPICAL PERFOR A CE CHARACTERISTICS Gain Error vs Temperature ±15V – 400 – 100 125 –25 0 TEMPERATURE (°C) LT1203/05 • TPC12 Settling Time to 1mV and 10mV vs Output Step 2.0 1.5 10mV 1mV 1.0 0.5 0 –0.5 – ...
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... SCRs will fire and the DC current should be limited to 20mA. Power Supplies The LT1203/LT1205 will operate from 5V (10V total) to 15V (30V total) and is specified over this range. Charac- teristics change very little over this voltage range not necessary to use equal value supplies however, the output offset voltage will change ...
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... Enable time are both 25ns, therefore delay is the LT1203/05 • AI02 same when switching between channels or between ICs. To demonstrate the switching speed of the LT1203/LT1205 the RGB MUX of Figure 1 is used to switch RGB Worksta- tion inputs with a 22ns pixel width. Figure photo showing the Workstation output and RGB MUX output ...
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... R restricts the F G Four LT1205s are used in Figure 5 to form a 16-to-1 multiplexer which is very space efficient and uses only six SO packages. In this application 15 switches are turned off and only one is active. An attenuator is formed by the 15 deselected switches and the active device which has an ...
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... Figure 3. Demo Board #041 Layout V – GND R R10 C3 U3 R16 G R17 R18 R15 C4 B COPYWRITE '93 MADE IN USA LT1205/03 • F03 ...
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... 0.1 F Figure 5. 16-to-1 Multiplexer and Truth Table LT1203/LT1205 74HCT238 G2B ...
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... Crosspoint The compact high performance 4 4 crosspoint shown in Figure 6 uses four LT1205s to route any input to any or all outputs. The complete crosspoint uses only six SO pack- ages and less than six square inches of PC board space. LT1203/05 • AI05 The LT1254 quad current feedback amplifier serves as a cable driver with a gain of 2 ...
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... C4 0 SELECT LOGIC SELECT LOGIC SELECT LOGIC OUTPUT 0 OUTPUT 1 Figure Crosspoint and Truth Table LT1203/LT1205 3 + R17 LT1254 2 – R9 820 R5 R10 10k 820 5 + R18 LT1254 6 – R6 10k R11 ...
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... PPLICATI S I FOR ATIO those used in the 16-to-1 crosspoint with one additional suggestion: Surround the LT1205 output traces by ground plane and route them away from the (–) inputs of the other three LT1254s. Each pair of logic inputs labeled Select Logic Output is used to select a particular output. The truth table is used to select the desired input and is applied to each pair of logic inputs ...
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... Plastic DIP 0.400 (10.160 0.045 – 0.065 (1.143 – 1.651) 0.065 (1.651) TYP 0.045 ± 0.015 (1.143 ± 0.381) 0.100 ± 0.010 (2.540 ± 0.254) LT1203/LT1205 2V – V – –2V LT1203/05 • SS MAX 6 5 0.250 ± 0.010 (6.350 ± 0.254) ...
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... LT1203/LT1205 PACKAGE DESCRIPTIO 0.010 – 0.020 45 (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0.016 – 0.050 0.406 – 1.270 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm). 0.010 – 0.020 45 (0.254 – 0.508) 0.008 – ...