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M02050-15 Datasheet, PDF (1/28 Pages) M/A-COM Technology Solutions, Inc. – 3.3/5V Limiting Amplifier for Applications to 2.5 Gbps
M02050-15
3.3/5V Limiting Amplifier for Applications to 2.5 Gbps
The M02050-15 is an integrated high-gain limiting amplifier. The M02050-15 features PECL outputs and is intended
for use in applications to 2.5 Gbps. Full output swing is achieved even at minimum input sensitivity. The M02050-15
can operate with a 3.3V or 5V supply.
Rate select is supported for SFP applications and/or to achieve optimum sensitivity at data rates ≤ 1.25 Gbps.
When rate select is high, optimum sensitivity is achieved at 2.5 Gbps.
The M02050-15 also includes two analog RSSI outputs proportional to either the average or peak to peak input sig-
nal and a programmable signal-level detector allowing the user to set thresholds at which the logic outputs are
enabled.
Other available solutions: M02049-15 3.3/5V Limiting Amplifier for Applications to 4.3 Gbps (CML outputs)
M02040-15 3.3/5V Limiting Amplifier for Applications to 2.125 Gbps (PECL outputs)
M02043-15 3.3/5V Limiting Amplifier for Applications to 4.3 Gbps (CML outputs)
1.25 Gbps and 4.25 Gbps SFP reference designs available on Mindspeed.com
Applications
• 2.5 Gbps STM-16/OC-48 SDH/SONET
• 1.06, 2.12 and 4.24 Gbps Fibre Channel
• 1.25 Gbps Ethernet
• 1.25 Gbps SDH/SONET
• 2.67 Gbps SDH/SONET with FEC
Features
• Operates with a 3.3V or 5V supply
• 3.5 mV typical input sensitivity at 2.5 Gbps
• PECL outputs
• Rate Selection for ≤ 1.25 Gbps operation
• Average Receive power monitor output (RSSIAVG)
• Peak-to-peak Receive power monitor output (RSSIPP)
• On-chip DC offset cancellation circuit
• Low power (< 180 mW at 3.3V)
• Output Jam Function
• 16 pin 3x3 QFN package
Typical Applications Diagram
+3.3 V
Photodiode
RATESELControl RATE SEL
12.1 kΩ
IREF
AC-Coupled
to TIA
DINP
VTT
MT02I0A13
Biasing
Limiting
Amplifier
MON
DINN
Jam
Output
Buffer
RxAVGIN
RSSIAVG
REXT
Level
Shift
Offset cancel
Level
Detect
Comparator
Threshold
Setting
Circuit
Regulator
STSET
RST
VCC3 VCC
optional
PECLP
PECLN
Clock Data
Recovery
Unit
RSSIPP
AC or DC Coupled
(as described in
Applications Information)
LOS
02050-DSH-002-F
Mindspeed Technologies™
Mindspeed Proprietary and Confidential
August 2005