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Table of Contents
Description
Demonstration circuit 2032A is a 75Ω input and 75Ω out-
put push-pull CATV amplifier featuring the
The LTC6430-15 has a power gain of 15.2dB and is part
of the LTC643X-YY amplifier series.
The DC2032A demo board is optimized for a frequency
range from 50MHz to 1000MHz. It incorporates a mini-
mum of passive support components to configure the
performance summary
SYMBOL
PARAMETER
Power Supply
V
Operating Supply Range
CC
I
Current Consumption
CC
75Ω Input/Output CATV Amplifier
LTC
6430-15.
®
Specifications are at T
CONDITIONS
All V
Total Current
GND (PINS 8, 14, 17, 23, AND PADDLE 25)
BIAS AND TEMPERATURE
+IN (PIN 24)
–IN (PIN 7)
GND (PINS 8, 14, 17, 23, AND PADDLE 25)
Figure 1. LTC6430-15 Device Block Diagram
DEMO MANUAL DC2032A
50MHz to 1000MHz
amplifier for the CATV applications with 75Ω input and
output impedance.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
= 25°C
A
Pins Plus OUT Pins
CC
V
(PINS 9, 22)
CC
COMPENSATION
+OUT (PIN 18)
T_DIODE (PIN 16)
–OUT (PIN 13)
LTC6430-15
4.75V to 5.25V
DC2032a F01
VALUE/UNIT
160mA
dc2032af
1
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Related Manuals for Linear Technology LTC6430-15
Summary of Contents for Linear Technology LTC6430-15
- Page 1 The DC2032A demo board is optimized for a frequency L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear range from 50MHz to 1000MHz. It incorporates a mini- Technology Corporation. All other trademarks are the property of their respective owners.
-
Page 2: Quick Start Procedure
Demo circuit 2032A can be set up to evaluate the perfor- 2. Apply to J1 two independent signals f1 and f2 from SG1 mance of the LTC6430-15. Refer to Figures 2 and 3 for and SG2 at 400MHz and 401MHz respectively. - Page 3 DEMO MANUAL DC2032A Quick start proceDure SIGNAL (HP8644A) GENERATOR 1 DC POWER SUPPLY AMPLIFIER MINI-CIRCUITS, ZHL-2 OR EQUIVALENT = 4.75V TO 5.25V 14dB ATTENUATION PAD LOW PASS FILTER (MATCHES DUT GAIN) 3dB ATTENUATION PAD 6dB ATTENUATION PAD COAXIAL CABLE (OPTIONAL) –5.7dB –5.7dB MINIMUM LOSS...
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Page 4: Operation
100Ω impedance the user’s preference, the board may also accept other of the LTC6430-15 to single-ended 75Ω impedance. The connector types such as BNC or SMA. Please note that frequency range of the circuit is limited by the balun trans- the use of substandard connectors can limit the usable formers. - Page 5 DEMO MANUAL DC2032A operation The input stability networks (C3, C4, R1, R2) are not OIM3, P = 1dBm/TONE required since the LTC6430-15 is preceded by a low fre- –10 HD2, P = 8dBm quency termination from the balun transformer. –20 –30...
- Page 6 5075R or equivalents) are added to the test setup at the Setup and Testing Signal Sources DUT input and output. These matching pads transform The LTC6430-15 is an amplifier with high linearity per- the DUT impedance from 75Ω to 50Ω to match the formance; therefore, output intermodulation products are characteristic impedance of modern RF instrumentation.
- Page 7 DEMO MANUAL DC2032A operation valid measurement. In other words, the spectrum ana- Testing the DUT lyzer 1st mixer was overloaded and producing its own At this point, the input level has been established at IMD products. If the IMD reading holds constant with –7dBm per tone (–13dBm at the DUT), and the input IMD increased input attenuation, then a sufficient amount from the test setup is well suppressed at –96dBc max.
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Page 8: Parts List
T3, T4, RF TRANSFORMER TC1.33-282 , CASE STYLE: AT 224-1 MINI-CIRCUITS, TC1.33-282+ T1, T2, RF TRANSFORMER TC1.33-282 , CASE STYLE: AT 224-1 BALANCED AMPLIFIER LTC6430AIUF-15, QFN24UF-4X4 LINEAR TECHNOLOGY, LTC6430AIUF-15 ALTERNATIVE FOR U1 BALANCED AMPLIFIER LTC6430BIUF-15, QFN24UF-4X4 LINEAR TECHNOLOGY, LTC6430BIUF-15 dc2032af... -
Page 9: Schematic Diagram
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. - Page 10 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.
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