02040-DSH-002-H Datasheet, PDF (1/27 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
The M02040-15 is an integrated high-gain limiting amplifier. Featuring PECL outputs, the M02040-15 is useable in
applications to 2.125 Gbps. Full output swing is achieved even at minimum input sensitivity. The M02040-15 can
operate with a 3.3V or 5V supply.
DC_Servo supports applications requiring instantaneous output response.
The M02040-15 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: M02050-15 3.3/5V Limiting Amplifier for Applications to 2.5 Gbps (PECL outputs)
M02049-15 3.3/5V Limiting Amplifier for Applications to 4.3 Gbps (CML 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
• 1.0625 and 2.125 Gbps Fibre Channel
• 1.25 Gbps Ethernet
• 1.25 Gbps SDH/SONET
Features
• Operates with a 3.3V or 5V supply
• 2 mV typical input sensitivity at 1.25 Gbps
• PECL outputs
• Average Receive power monitor output (RSSI_AVG)
• Peak-to-peak Receive power monitor output (RSSI_PP)
• On-chip DC offset cancellation circuit
• Offset cancellation circuit can be disabled for Burst mode applications
• Low power (170 mW at 3.3V)
• Output Jam function
• 16-pin 3x3 mm QFN package
Typical Applications Diagram
DC_Servo Control
+3.3 V
Photodiode
AC-Coupled
to TIA
DINP
MT02I0A16
MON
DINN
12.1 kΩ
V_TT
I_REF
DC_Servo
Biasing
Limiting
Amplifier
Jam
Output
Buffer
RxAVG_IN
RSSI_AVG
R_EXT
Level
Shift
Offset cancel
Level
Detect
Comparator
Threshold
Setting
Circuit
Regulator
ST_SET
R _ST
V_CC3 V_CC
optional
PECLP
PECLN
Clock Data
Recovery
Unit
RSSI_PP
AC or DC Coupled
(as described in
Applications Information)
LOS
02040-DSH-002-H
Mindspeed Technologies™
Mindspeed Proprietary and Confidential
December 2005