| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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15,067 pcs
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15067 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
2,284 pcs
|
2284 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The MAX3948ETE+ is a multirate, low-power laser diode driver designed for Ethernet, Fibre Channel, and SONET transmission systems at data rates up to 11.3Gbps. This device operates at 3.3V and is optimized to drive a differential transmitter optical subassembly (TOSA). It can deliver laser modulation currents of up to 85mA into a 5Ω external differential load, with programmable DC currents up to 61mA.
The device features on-chip termination for differential AC-coupled signals and integrated back termination resistors. An input equalization block can be activated to compensate for host connector losses. The MAX3948 supports up to four channel addresses over a single 3-wire digital interface, allowing adjustment of input equalization, polarity, output deemphasis, and modulation and DC currents without external components.
Packaged in a compact 16-TQFN (3x3mm) with surface mount mounting, the MAX3948ETE+ is specified for an extended temperature range of -40°C to +95°C. Its low power consumption makes it suitable for enabling <1W maximum total SFP+ module power dissipation and <2.5W maximum total QSFP+ module power dissipation.
Applications include 40GBASE-LR4 QSFP+ Optical Transceivers, 10GBASE-LR SFP+ Optical Transceivers, 10GBASE-LRM SFP+ Optical Transceivers, and OC192-SR SFP+ SDH/SONET Transceivers.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage is 3.3V (range 2.95V to 3.63V).
The MAX3948ETE+ is available in a 16-TQFN (3x3mm) surface mount package with exposed pad.
The operating temperature range is -40°C to 95°C.
The maximum data rate is 11.3Gbps.
The device has 4 channels.
The maximum modulation current is 85mA into a 5Ω external differential load.
The IC power dissipation is 168mW typical at 3.3V with LDMOD=40mA, LDDC=20mA. Total transmitter power dissipation is 383mW typical under similar conditions.