TGA4947-SL Datasheet, PDF (1/1 Pages) TriQuint Semiconductor – Dual channel 40Gb/s & 100Gb/s Modulator Driver

TGA4947-SL
Dual channel 40Gb/s & 100Gb/s Modulator Driver
Applications
• 40 GB/s Optical Market: DQPSK
• 100 GB/s Optical Market: DP-QPSK
Product Features
• 40 & 100 Gb/s Performance
• Dual Channel, Single-ended Input and Output
• Integrated broadband bias tees
• Adjustable Output Amplitude, 3 Vpp – 9 Vpp
• Channel / Channel Isolation, 30 dB to 40 GHz
• Low Additive RMS Jitter, 600 fsec
• High Output Drive, 8Vpp with 0.4 Vpp Input
• Gain, 30 dB at 20 GHz
• Low DC Power Dissipation, 2.4 W total for Vout =
6 Vpp at Vd=5 V
• Rise and Fall Times, 10.5 psec
• Hot Pluggable
• Package Size: 16 x 10.5 x 3.6 mm
Eye Diagram
Vout = 7 Vpp, 32 Gbps Vin=0.5 Vpp
Vd = 5 V, Pdiss = 1.2 W per Channel
General Description
Channel-Channel Isolation
The TriQuint TGA4947-SL is a dual channel optical
modulator driver amplifier designed for the 40 and 100
Gb/s optical markets. The TGA4947-SL is a compact
SMT package with 30 dB channel to channel isolation
up to 40 GHz.
The TGA4947-SL consists of two channels of three
high performance wideband amplifiers and integrated
broadband bias tees assembled in a 16 x 10.5 x 3.6
mm package, requiring a minimum of off-chip
components. A single TGA4947-SL placed between
the MUX and Optical Modulator provides OEMs with
a modulator driver surface mount solution.
The TGA4947-SL provides Metro and Long Haul
designers with system critical features such as: low
power dissipation, high signal to noise ratio (SNR),
high voltage drive capability (3 Vpp amplitude
adjustable up to 9 Vpp), fast rise and fall times, low
output jitter, and low input drive sensitivity (0.4 Vpp –
1 Vpp at Vout = 8Vpp).
The TGA4947-SL finish is lead-free. RoHS compliant.
Evaluation boards and bias boards are available upon
request.
TGA4947-SL Dual Driver Isolation vs Frequency
Vd = 7 V, Vc1 = 0.5 V, Vc2 = 0.25 V, Vc3 = 0.05 V,
Idq1 = 45 ma, Idq2 = 52 ma, Idq3 = 90 mA
0
-10
-20
-30
-40
-50
-60
-70
-80
0
Isolation I Channel
Isolation Q Channel
10
20
30
40
50
Frequency (GHz)
Ordering Information
Part No.
TGA4947-SL
ECCN
5A991.b
Description
Dual Channel 40 &100
Gb/s Modulator Driver
Product Summary: Rev - 9/17/2012
© 2012 TriQuint Semiconductor, Inc.
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Disclaimer: Subject to change without notice
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