TGA2803-SM_15 Datasheet, PDF (12/14 Pages) TriQuint Semiconductor – CATV TIA Gain Block

Recommended Electro-Optical Assembly
Single-Mode
Fiber
-15V
T GA2803-SM
CATV TIA / Gain Block
+8V
L1
C5
PD
RFout
T1
C1
C2
1 ^{20 19 18 17 16} ₁₅
2
14
3 ^{TGA 2803} ₁₃
4
12
5 _{6 7 8 9 10 11}
C3
RF
T2 ^OUT
C4
L2
C6
+8V
Component Description
Parameter
C1
C2
C3
C4
C5
C6
L1
L2
T1
T2
PD
Description
0.014 μF Capacitor
0.01 μF Capacitor
470 pF Capacitor
470 pF Capacitor
270 pF Capacitor
270 pF Capacitor
820 nH Inductor
820 nH Inductor
Balun^ (1)
Balun^ (1)
Broadband Photodiode^ (2)
Notes:
1. Balun performance impacts amplifier return losses and gain. Best performance can be achieved by winding 34 or 36 gauge
bifilar wire around a small binocular core made from low-loss magnetic material. Suitable wire may be obtained from MWS Wire
Industries. Core vendors include Ferronics, Fairrite, TDK, and Micrometals.
2. Alternatively, off-the-shelf baluns can be purchased from a number of vendors including Mini-Circuits (ADTL1-18-75), M/A-
COM (ETC1-1-13), and Pulse Engineering (CX2071).
Emcore 2609C Broadband Photodiode Module is recommended. The module includes a 4:1 impedance transformer.
Preliminary Datasheet: Rev. A 10-09-14
© 2014 TriQuint
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Disclaimer: Subject to change without notice
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