MAX3941 Maxim, MAX3941 Datasheet
MAX3941
Manufacturer Part Number
MAX3941
Description
10Gbps EAM Driver with Integrated Bias Network
Manufacturer
Maxim
Datasheet
1.MAX3941.pdf
(11 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX3941ECSD
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX3941 is designed to drive an electro-absorp-
tion modulator (EAM) at data rates up to 10.7Gbps. It
incorporates the functions of a biasing circuit and a
modulation circuit, with integrated control op amps
externally programmed by DC voltages.
The integrated bias circuit provides a programmable
biasing current up to 50mA. This bias current reflects a
bias voltage of up to 1.25V on an external 50Ω load. The
bias and modulation circuits are internally connected on
chip, eliminating the need for an external bias inductor.
A high-bandwidth, fully differential signal path is internally
implemented to minimize jitter accumulation. When a
clock signal is available, the integrated data-retiming
function can be selected to reject input-signal jitter.
The MAX3941 receives differential CML signals (ground
referenced) with on-chip line terminations of 50Ω. The
output has a 50Ω resistor for back termination and is
able to deliver a modulation current of 40mA
120mA
typ). This modulation current reflects an EAM modula-
tion voltage of 1.0V
The MAX3941 also includes an adjustable pulse-width
control circuit to precompensate for asymmetrical EAM
characteristics. It is available in a compact 4mm x
4mm, 24-pin thin QFN package and operates over the
-40°C to +85°C temperature range.
19-2935; Rev 0; 7/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
P-P
, with an edge speed of 23ps (20% to 80%
SERIALIZER
MAX3952
10Gbps
________________________________________________________________ Maxim Integrated Products
P-P
REPRESENTS A CONTROLLED-
IMPEDANCE TRANSMISSION LINE.
to 3.0V
DATA+
General Description
DATA-
CLK+
CLK-
P-P
0.01µF
0.01µF
0.01µF
0.01µF
10Gbps EAM Driver with Integrated
.
50Ω
50Ω
50Ω
50Ω
-5.2V
DATA+
DATA-
CLK+
CLK-
P-P
PWC+
PLRT
to
2kΩ
PWC-
MODEN
o On-Chip Bias Network
o 23ps Edge Speed
o Programmable Modulation Voltage Up to 3V
o Programmable EAM Biasing Voltage Up to 1.25V
o Selectable Data-Retiming Latch
o Up to 10.7Gbps Operation
o Integrated Modulation and Biasing Functions
o 50Ω On-Chip Input and Output Terminations
o Pulse-Width Adjustment
o Enable and Polarity Controls
o ESD Protection
MAX3941ETG
MAX3941
V
MODSET
MODSET
RTEN
+
-
PART
SONET OC-192 and SDH STM-64
Transmission Systems
DWDM Systems
Long/Short-Reach Optical Transmitters
10Gbps Ethernet
V
BIASSET
-5.2V
BIASSET
+
-
Typical Application Circuit
GND
V
OUT
EE
-40°C to +85°C
TEMP RANGE
-5.2V
Ordering Information
Bias Network
330pF
50Ω
EAM
Applications
0.1µF
PIN-PACKAGE
24-Thin QFN
(4mm x 4mm)
-5.2V
Features
P-P
1
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