Datasheet LT1203, LT1205 (Analog Devices)

LT1203/LT1205 150MHz Video Multiplexers
U FEATU S RE DESCRIPTIO
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– 3dB Bandwidth: 150MHz
The LT1203 is a wideband 2-input video multiplexer ■
0.1dB Gain Flatness: 30MHz
designed for pixel switching and broadcast quality rout- ■
Channel-to-Channel Switching Time: 25ns
ing. The LT1205 is a dual version that is configured as a ■ Turn-On/Turn-Off Time: 25ns 4-input, 2-output multiplexer. ■ High Slew Rate: 300V/µs These multiplexers act as SPDT video switches with 10ns ■ Disabled Output Impedance: 10MΩ transition times at toggle rates up to 30MHz. The – 3dB ■ 50mV Switching Transient bandwidth is 150MHz and 0.1dB gain flatness is 30MHz. ■ Channel Separation at 10MHz: > 90dB Many parts can be tied together at their outputs by using ■ Differential Gain: 0.02% the enable feature which reduces the power dissipation ■ Differential Phase: 0.02° and raises the output impedance to 10MΩ. Output capaci- ■ Wide Supply Range: ±5V to ±15V tance when disabled is only 3pF and the LT1203 peaks less ■ Output Short-Circuit Protected than 3dB into a 50pF load. Channel crosstalk and disable ■ Push-Pull Output isolation are greater than 90dB up to 10MHz. An on-chip
O U
buffer interfaces to fast TTL or CMOS logic. Switching
APPLICATI S
transients are only 50mV with a 25ns duration. The LT1203 and LT1205 outputs are protected against shorts ■ Broadcast Quality Video Multiplexing to ground. ■ Picture-in-Picture Switching ■ HDTV The LT1203/LT1205 are manufactured using Linear ■ Computer Graphics Technology’s proprietary complementary bipolar process. ■ Title Generation The LT1203 is available in both the 8-lead PDIP and SO ■ Video Crosspoint Matrices package while the LT1205 is available in the 16-lead ■ Video Routers narrow body SO package.
O U TYPICAL APPLICATI High Speed RGB MUX Large-Signal Response
CHANNEL SELECT V+ RED 1 +1 VOUT RED EN RED 2 +1 LOGIC V– LT1205 V+ GREEN 1 +1 VOUT GREEN EN GREEN 2 +1 LOGIC V– V+ BLUE 1 +1 LT1203 VOUT BLUE EN BLUE 2 +1 LOGIC V– LT1203 • TA01 1