DATASHEET ISL59420 FN7459 Rev 2.00 400MHz Multiplexing Amplifier July 3, 2012 The ISL59420 is a 420MHz bandwidth 2:1 multiplexing Features amplifier designed primarily for video switching. This Mux-amp 420MHz (-3dB) Bandwidth (A = 1, V = 400mV ) has user-settable gain and also feature a high speed three-state V OUT P-P function to enable the output of multiple devices to be wired 165MHz (-3dB) Bandwidth (A = 2, V = 2V ) V OUT P-P together. All logic inputs have pull-downs to ground and may be Slew Rate (A = 1, R = 500 V = 4V) 966V/s V L OUT left floating. The ENABLE pin, when pulled high, sets the Slew Rate (A = 2, R = 500V = 5V) .1462V/s ISL59420 to the low current power-down mode for power V L OUT sensitive applications - consuming just 5mW. Selectable Gain TABLE 1. CHANNEL SELECT LOGIC TABLE High Speed Three-State Output (HIZ) S0 ENABLE HIZ OUTPUT Low Current Power-Down . 5mW Pb-Free (RoHS Compliant) 000 IN0 100 IN1 Applications X1X Power Down HDTV/DTV Analog Inputs X0 1 High Z Video Projectors Computer Monitors Related Literature Set-Top Boxes See AN1187, ISL59420/21EVAL1 Evaluation Board Users Security Video Guide Broadcast Video Equipment IN- S0 EN0 OUT IN0 - DECODE + IN1 EN1 AMPLIFIER BIAS HIZ ENABLE ENABLE pin must be low in order to activate the HIZ state FIGURE 1. FUNCTIONAL DIAGRAM FN7459 Rev 2.00 Page 1 of 13 July 3, 2012ISL59420 Pin Configuration ISL59420 (10 LD MSOP) TOP VIEW S0 IN- 1 10 GND OUT 2 9 - + IN0 3 8 V+ ENABLE V- 4 7 IN1 HIZ 5 6 Pin Descriptions PIN PIN EQUIVALENT NUMBER NAME CIRCUIT DESCRIPTION 1 S0 Circuit 2 Channel selection pin LSB (binary logic code) 2 GND Circuit 4 Ground pin 3 IN0 Circuit 1 Input for channel 0 4ENABLE Circuit 2 Device enable (active low) there are internal pull-down resistors, so the device will be active with no connection H puts device into power-down mode. 5 IN1 Circuit 1 Input for channel 1 6 HIZ Circuit 2 Output disable (active high) there are internal pull-down resistors, so the device will be active with no connection HI puts the output in high impedance state. 7 V- Circuit 4 Negative power supply 8 V+ Circuit 4 Positive power supply 9 OUT Circuit 3 Output 10 IN- Circuit 1 Inverting input of output amplifier V+ V+ 21k + 1.2V IN LOGIC PIN GND. - 33k V- V- CIRCUIT 1. CIRCUIT 2. V+ V+ CAPACITIVELY GND OUT COUPLED ESD CLAMP V- V- CIRCUIT 3. CIRCUIT 4. Ordering Information PART NUMBER PART PACKAGE TAPE & PKG. (Notes 2, 3) MARKING (Pb-free) REEL DWG. ISL59420IUZ BBPAA 10 Ld MSOP -M10.118A ISL59420IUZ-T7 (Note 1) BBPAA 10 Ld MSOP 7 M10.118A ISL59420IUZ-T13 (Note 1) BBPAA 10 Ld MSOP 13 M10.118A NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL59420. For more information on MSL please see tech brief TB363. FN7459 Rev 2.00 Page 2 of 13 July 3, 2012