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1 General description

The NX3DV2567 is a four-pole double-throw analog switch (4PDT) optimized for switching WLAN-SIM supply, data and control signals. It has one digital select input (S) and four switches each with two independent input/outputs (nY0 and nY1) and a common input/output (nZ). Schmitt trigger action at S makes the circuit tolerant to slower input rise and fall times across the entire VCC range from 1.4 V to 4.3 V. A low input voltage threshold allows pin S to be driven by lower level logic signals without significant increase in supply current ICC. This makes it possible for the NX3DV2567 to switch 4.3 V signals with a 1.8 V digital controller, eliminating the need for logic level translation.

The NX3DV2567 allows signals with amplitude up to VCC to be transmitted from nZ to nY0 or nY1; or from nY0 or nY1 to nZ.

2 Features and benefits

? Wide supply voltage range from 1.4 V to 4.3 V

? Very low ON resistance for supply path:

– 0.5 Ω (typical) at VCC = 1.8 V

– 0.45 Ω (typical) at VCC = 2.7 V

? Low ON resistance for data path:

– 7 Ω (typical) at VCC = 1.8 V

– 6 Ω (typical) at VCC = 2.7 V

? Low ON capacitance for data path

? Wide -3 db bandwidth > 160 MHz

? Break-before-make switching

? High noise immunity

? ESD protection:

– HBM JESD22-A114F Class 3A exceeds 4000 V

– HBM JESD22-A114F Class 3A I/O to GND exceeds 7000 V

– CDM AEC-Q100-011 revision B exceeds 1000 V

? CMOS low-power consumption

? Latch-up performance exceeds 100 mA per JESD 78B Class II Level A

? 1.8 V control logic at VCC = 3.6 V

? Control input accepts voltages above supply voltage

? Very low supply current, even when input is below VCC

? High current handling capability (350 mA continuous current under 3.3 V supply for supply path switch)

? Specified from -40 °C to +85 °C and from -40 °C to +125 °C

3 Applications

? Cell phone, PDA, digital camera, printer and notebook

? LCD monitor, TV and set-top box