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MAX3946ETG+
MAX3946ETG+ - Brand New Maxim Integrated Laser Drivers
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 MAX3946 is a +3.3V, multirate, low-power laser diode driver designed for
Ethernet and Fibre Channel 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 use of unmatched TOSAs, greatly reducing headroom limitations
and lowering power consumption.
The device receives differential CML-compatible signals with on-chip line
termination. It can deliver laser modulation current of up to 80mA, at an edge
speed of 22ps (20% to 80%), into a 5I to 25I external differential load. The
device is designed to have a symmetrical output stage with on-chip back
terminations integrated into its outputs. A high-bandwidth, fully differential
signal path is implemented to minimize deterministic jitter. An equalization
block can be activated to compensate for the SFP+ connector. The integrated
bias circuit provides programmable laser bias current up to 80mA. Both the
laser bias generator and the laser modulator can be disabled from a single
pin.
A 3-wire digital interface reduces the pin count and permits adjustment of
input equalization, pulse-width adjustment, Tx polarity, Tx deemphasis,
modulation current, and bias current without the need for external components.
The MAX3946 is available in a 4mm x 4mm, 24-pin TQFN package.
Features
♦ 225mW Power Dissipation Enables < 1W SFP+ Modules
♦ Up to 100mW Power Consumption Reduction by Enabling the Use of Unmatched
FP/DFB TOSAs
♦ Supports SFF-8431 SFP+ MSA and SFF-8472 Digital Diagnostic
♦ 225mW Power Dissipation at 3.3V (IMOD = 40mA, IBIAS = 60mA Assuming 25I
TOSA)
♦ Single +3.3V Power Supply
♦ Up to 11.3Gbps (NRZ) Operation
♦ Programmable Modulation Current from 10mA to 100mA (5Ω Load)
♦ Programmable Bias Current from 5mA to 80mA
♦ Programmable Input Equalization
♦ Programmable Output Deemphasis
♦ 25Ω Output Back Termination at TOUT+ and TOUT
♦ DJ Performance 7psP-P with Mismatched Differential Load (5Ω)
♦ DJ Performance 5psP-P with Mismatched Differential Load (25Ω)
♦ DJ Performance 5psP-P with 50Ω Differential Load
♦ Programmable Pulse Width
♦ Edge Transition Times of 22ps
♦ Bias Current Monitor
♦ Integrated Eye Safety Features
♦ 3-Wire Digital Interface
♦ -40°C to +95°C Operation
Applications
4x/8x FC SFP+ Optical Transceivers
10GFC SFP+ Optical Transceivers
10GBASE-LR SFP+ Optical Transceivers
10GBASE-LRM SFP+ Optical Transceivers
OC192-SR XFP/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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