MAX3971AUTP+ Maxim Integrated Products, MAX3971AUTP+ Datasheet - Page 7

• Manufacturer Part Number: MAX3971AUTP+
• Description: IC AMP LIMIT 10.7GBPS 20-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Limiting Amplifierr

Specifications of MAX3971AUTP+

• Applications: Optical Networks
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Operating Supply Voltage: 3.3 V
• Supply Current: 50 mA
• Operating Temperature Range: + 85 C
• Mounting Style: SMD/SMT
• Number Of Channels: 1
• Power Dissipation: 1300 mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Circuit board layout and design can significantly affect
the performance of the MAX3971A. Use good high-fre-
quency techniques, including fixed-impedance trans-
mission lines for the high-frequency data signal. Use a
multilayer board with solid ground plane. Minimize the
inductance between the MAX3971A and the ground
plane.
The MAX3971A uses three power-supply pins (V
V
supplied by V
supply (V
All other circuitry is powered by V
simply connect the three pins together. However, using a
supply filter ensures better isolation of the input circuitry.
For optimal isolation, Figure 5 shows a possible supply-
filtering circuit. Element L, a ferrite bead, provides isola-
tion between a noisy V
TRANSISTOR COUNT: 324
PROCESS: SiGe Bipolar
SUBSTRATE: Electrically Isolated
CC2
, and V
CC3
CC3
), which usually has large pulsing currents.
CC1
). The input circuitry of the MAX3971A is
. The output drivers have a separate
_______________________________________________________________________________________
Layout Considerations
CC3
and a sensitive V
Chip Information
+3.3V, 10.7Gbps Limiting Amplifier
CC2
. It is possible to
CC1
.
CC1
,
TOP VIEW
GNDIN+
GNDIN+
GNDIN-
GNDIN-
N.C.
N.C.
IN+
IN+
IN-
IN-
THE EXPOSED PAD MUST BE CONNECTED TO GROUND FOR
PROPER THERMAL AND ELECTRICAL PERFORMANCE.
THE EXPOSED PAD MUST BE SOLDERED TO GND FOR
PROPER THERMAL AND ELECTRICAL PERFORMANCE.
1
2
3
4
5
1
2
3
4
5
20
6
20
6
4mm x 4mm
4mm x 4mm
19
THIN QFN
19
7
7
MAX3971A
MAX3971A
Pin Configurations
QFN
18
18
8
8
17
17
9
9
10
16
16
10
15
14
13
12
11
15 V
14
13
12
11
V
OUT+
OUT-
V
GND
OUT+
OUT-
V
GND
CC3
CC3
CC3
CC3
7