SE1050W Datasheet, PDF (1/11 Pages) SiGe Semiconductor, Inc. – LightCharger™ 10 Gb/s Transimpedance Amplifier Final

SE1050W
LightCharger™ 10 Gb/s Transimpedance Amplifier
Final
Applications
§ SONET/SDH-based transmission systems, test
equipment and modules
§ OC-192 fibre optic modules and line termination
§ 10 Gigabit Ethernet
§ Fibre Channel
§ Serial data systems up to 10.7 Gb/s
Features
§ Single +5 V power supply
§ Power dissipation = 430 mW (typ)
§ Input noise current = 1.4 µA rms when used with
a 0.2 pF detector
§ Transimpedance gain = 1.2 kΩ into a 50 Ω load
(differential)
§ Input current overload = 2.3 mA pk (+1.1 dBm for
0.9 A/W responsivity - meets 10 Gigabit Ethernet
specification)
§ Wide linear dynamic range of 17 dB (typ)
§ 50 Ω single-ended or 100 Ω differential wire bond
selectable outputs
§ Bandwidth (-3 dB) = 9.8 GHz
§ Operates at OC-192 / STM-64 up to 10.7 Gb/s
NRZ rates
§ Power supply rejection for both single ended and
differential modes of operation
§ Optimized for PIN photodetectors
§ Minimal external components, supply decoupling
only
§ Operating junction temperature range = -40°C to
+100°C
§ Equivalent to Nortel Networks AE99
Ordering Information
Type
Package
SE1050W
Bare Die
Remark
Shipped in
Waffle Pack
Functional Block Diagram
Product Description
SiGe Semiconductor offers a portfolio of optical
networking ICs for use in high-performance optical
transmitter and receiver functions, from 155 Mb/s up
to 12.5 Gb/s.
SiGe Semiconductor’s SE1050W is a fully integrated
silicon bipolar transimpedance amplifier, providing
wideband, low noise preamplication of signal current
from a PIN photodetector. It features differential
outputs. A decoupling capacitor on the supply is the
only external component required. A system block
diagram is shown after the functional description, on
page 3.
Noise performance is optimized for 10 Gb/s operation,
with a calculated rms noise based sensitivity of
–20 dBm for 10^-10 bit error rate, using a detector with
0.20 pF capacitance and a responsivity of 0.9 A/W,
with an infinite extinction ratio source.
VCC or +ve supply
Input
Current
TZ_IN
1.29 V
Bandgap
Reference
SE1050
TzAmp
10 Gb/s
Rf
Tz Amp
Power
Supply
Rejection
Output
Driver
50 Ω
50 Ω
50 Ω
OUTP
OUTN
ACGND
Wire bond option for single-ended operation
45-DST-01 § Rev 1.5 § May 24/02
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