M02040-15 Datasheet, PDF (13/31 Pages) M/A-COM Technology Solutions, Inc. – 3.3 5V Limiting Amplifier for Applications to 2.125 Gbps

M02040-15
3.3/5V Limiting Amplifier for Applications to 2.125 Gbps
Rev V4
3.3.1
Inputs
The data inputs are internally connected to V_TT via 50 Ω resistors, and generally need to be AC coupled. Referring
to Figure 3-2, the nominal V_TT voltage is 2.85V because of the internal resistor divider to V_CC3, which means this is
the DC potential on the data inputs. See the applications information section for further details on choosing the AC-
coupling capacitor.
Figure 3-2. CML Data Inputs
V_CC
V_TT
V_CC3
V_CC
1.3 kΩ
DINP
50 Ω
50 Ω
8.3 kΩ
DINN
3.3.2
DC Offset Compensation
The M02040-15 contain an internal DC autozero circuit that can remove the effect of DC offsets without using
external components. This circuit is configured such that the feedback is effective only at frequencies well below
the lowest frequency of interest. The low frequency cut off is typically 25 kHz.
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