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AGC Amplifier features 60 dB dynamic range -
08/04/05 EDN-Design Ideas: Using discrete components
only, build an audio-band AGC.
AN-1020: Demodulating with the LMX2240 150 MHz IF
Receiver - National Semiconductor Application
Note
AN-502: Designing a
Super heterodyne Receiver using
an IF Sampling Diversity Chipset - AN-502 Analog
Devices Application Notes. The AD6600/AD6620 Chipset
Simplifies Receiver Design
Audio Circuit - Circuit design
Constant-impedance IF bandpass filters improve
circuit performance - Application Note
MiniCircuits.com
Demodulating with the LMX2240 150 MHz IF Receiver
- National Semiconductor Application Note
Designing a Superheterodyne Receiver using an IF
Sampling Diversity Chipset - AN-502 Analog
Devices Application Notes. The AD6600/AD6620 Chipset
Simplifies Receiver Design
HDT Technology Adds Power to CDMA Chip Set - RF
Micro Devices Application Note TA0003
I.F. Amplifier - The I.F. transformer primary
has 18 turns, the secondary winding has 4 turns. The
capacitors across the IFT primaries are 82pF. The
input/output transformer has 12 turns, tapped at 3
turns from ground. This transformer is wound on a
ferrite core. The mosfets are 3SK45's. The diodes in
the product detector are 1N34's. I use a six pole
SSB filter from a scrap CB. The centre frequency is
7.8MHz. The -6db bandwidth is about 2.5KHz.
IF Amplifier Circuit - Three of these amplifiers
are used in series to build the 455 kHz IF
amplifier. AGC voltage comes from the AGC Circuit.
The diagram above shows the circuit for the second
IF amplifier.
LM1823High Quality TV Video I.F. Amplifier &
Synchronous Detector for Cable Receivers -
National Semiconductor Application Note 09 Apr1996
Low Distortion IF Amplifier/ ADC Driver with
Digitally Controlled Gain - Linear Technology
LT5524
Trimless IF VCO: Part 1: Design Considerations -
This application note explores the design
fundamentals needed to implement a trimless,
fixed-frequency, IF voltage-controlled oscillator (VCO)
and points out the challenges in guaranteeing proper
circuit operation. VCOs are essential components in
the architecture of most wireless systems. In
dual-conversion approaches, a fixed-frequency....
APP 711: Feb 05, 2001
Tunable IF with TDA7000 - The main motive of the
mods was not that the circuit didn't work right, but
were several tries to add some kind of frequency
indicator to the receiver. The left RCA plug and
associated components are witnesses to the last
version, adding a FET buffer amplifier and taking
signal from the oscillator coil.
UltraLow Distortion IF Amplifier/ ADC Driver with
Digitally Controlled Gain - Linear Technology
LT5514. |
