M02014 Datasheet, PDF (9/19 Pages) M/A-COM Technology Solutions, Inc. – CMOS Transimpedance Amplifier with AGC for Fiber Optic Networks up to 2.5 Gbps

3.0 Functional Description
3.1
Overview
The M02014 is a CMOS transimpedance amplifier with AGC. The AGC gives a wide dynamic range of 32 dB. The
high transimpedance gain of 11 kΩ ensures good sensitivity.
For optimum system performance, the M02014 die should be mounted with a PIN photodetector inside a lensed
TO-Can or other optical sub-assembly.
The M02014 can either bias the PIN diode from the internal regulator or use an externally biased photo diode.
A replica of the average photodiode current is available at the MON pad for photo-alignment.
Figure 3-1. M02014 Block Diagram
MON
PINK
2.6 V
PINA
DC
Restore
Phase
Splitter
DC Shift
DOUT
DOUT
1V
AGC
02014-DSH-001-D
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