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MAX3948ETE+T
MAX3948ETE+T - Brand New Maxim Integrated IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
General Description
The MAX3948 is a 3.3V, multirate, low-power laser diode driver designed for
Ethernet, Fibre Channel, and SONET transmission systems at data rates up to
11.3Gbps. This device is optimized to drive a differential transmitter optical
subassembly (TOSA) with a 25I flex circuit. The unique design of the output
stage enables DC-coupling to unmatched TOSAs, thereby lowering transmitter
power consumption by more than 100mW.
The MAX3948 receives differential AC-coupled signals with on-chip termination.
It can deliver laser modulation currents of up to 85mA at an edge speed of
26ps (20% to 80%) into a 5I external differential load. The device is designed
to have a high-bandwidth differential signal path with on-chip back
termination resistors integrated into its outputs. An input equalization block
can be activated to compensate for SFP+/QSFP+ host connector losses. The
integrated DC circuit provides programmable laser DC currents up to 61mA. Both
the laser DC current generator and the laser modulator can be disabled from a
single pin.
The device offers one dedicated pin (VSEL) to program up to four channel
addresses for multichannel applications.
The use of a 3-wire digital interface reduces the pin count while permitting
adjustment of input equalization, polarity, output deemphasis, and modulation
and DC currents without the need for external components. The MAX3948 is
available in a 3mm x 3mm, 16-pin TQFN package, and is specified for the -40NC
to +95NC extended temperature range.
Benefits and Features
♦ Lowest Power Consumption
◇ 168mW Typical IC Power Dissipation at 3.3V
(LDMOD = 40mA, LDDC = 20mA)
◇ 383mW Total Transmitter Power Dissipation at
3.3V Including LDMOD = 40mA, LDDC = 20mA
◇ Enables < 1W Maximum Total SFP+ Module
Power Dissipation
◇ Enables < 2.5W Maximum Total QSFP+ Module
Power Dissipation
♦ Saves Board Space
◇ Small 3mm x 3mm Package
◇ DC-Coupling to the Laser Reduces External
Component Count
♦ Flexibility
◇ Operate Up to Four MAX3948 ICs Over Single
3-Wire Digital Interface
◇ Programmable Modulation Current Up to
85mA (5ω Load)
◇ Programmable DC Current Up to 61mA
(Translates to Up to 100mA Laser Bias Current)
◇ Programmable Input Equalization and Output
Deemphasis
♦ Safety
◇ Supports SFF-8431 SFP+ MSA and SFF-8472
Digital Diagnostic
◇ Integrated Eye Safety Features with Maskable
Faults
◇ DC Current Monitor
Applications
40GBASE-LR4 QSFP+ Optical Transceivers
10GBASE-LR SFP+ Optical Transceivers
10GBASE-LRM SFP+ Optical Transceivers
OC192-SR SFP+ SDH/SONET Transceivers
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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