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FSA3357L8X
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Product Detailed Parameters
- Description：IC SWITCH SP3TX1 15OHM 8MICROPAK
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Switch Circuit：SP3T
- Multiplexer/Demultiplexer Circuit：3:01
- On-State Resistance (Max)：15Ohm
- Channel-to-Channel Matching (ΔRon)：150mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：6.5ns, 3.7ns
- -3db Bandwidth：200MHz
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：3.6pF
- Current - Leakage (IS(off)) (Max)：100nA
- Crosstalk：-60dB @ 10MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-UFQFN
- Supplier Device Package：8-MicroPak™
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The FSA3357L8X is a dual SPDT analog switch manufactured by Fairchild Semiconductor, housed in an SC-70-6 surface-mount package. It operates with a supply voltage range of 1.65V to 5.5V, enabling low-voltage compatibility for portable applications. The device features a typical on-resistance (Ron) of 0.4 ohms at 5V and 0.5 ohms at 3V, ensuring minimal signal attenuation. It supports bidirectional signal transmission with a breakdown voltage capability of up to 5.5V above the positive rail. The switch exhibits low charge injection and offers high bandwidth, making it suitable for audio and video signal routing in mobile devices.
Feature Summary
- Dual single-pole double-throw (SPDT) configuration for efficient signal path switching
- Low on-resistance ensures high signal integrity across the operating voltage range
- Rail-to-rail signal handling capability allows operation beyond the supply rails
- Ultra-low power consumption suitable for battery-operated portable electronics
Applications
- Audio and video signal routing in mobile phones and tablets
- Headset detection and switching circuits
- Portable media players and MP3 devices
- Camera module signal switching
Procurement Notes
Verify the manufacturer marking and date code on the component body to confirm authenticity. Ensure the SC-70-6 package matches the required footprint for PCB layout. Check for RoHS compliance documentation if environmental regulations apply to the final assembly. Confirm that the supply voltage requirements align with the system design before integration.
Selection Notes
Select this component when a compact dual SPDT switch is required for low-voltage digital or analog signals. Consider the 0.4-ohm on-resistance for applications demanding minimal signal loss. Verify that the input signal amplitude does not exceed the absolute maximum ratings relative to the supply voltage. Compare pinout compatibility with existing designs if replacing legacy components.
Part Context
The FSA3357L8X belongs to Fairchild's FSA series of analog switches, designed for consumer electronics. It complements other single-pole switches in the lineup by offering dual functionality in a small footprint. This series is commonly used in mobile handsets for managing multiple peripheral connections efficiently.
Replacement Considerations
Check for direct pin-compatible alternatives from ON Semiconductor or other manufacturers if supply constraints exist. Ensure that any substitute maintains the same SC-70-6 package and electrical characteristics, particularly on-resistance and leakage current.
