for agc circuit (2) production, varicap links and amplifier circuit (4), wherein filter has a variable centre frequency and is used to amplify the bandwidth of the apparent input signal of FM signal (4) from amplifying circuit, and PLL circuit (14) connect (5) with bandpass filter. Dete...
(srejection c■ 2 programmable IF-gain stages u■ Mixer for 2nd IF 450 kHz rod■ Internal 450 kHz bandpass filter with three Pbandwidths controlled by ISS te■ Fully integrated FM-demodulator with noise lecancellation soAM part b■ Wide and narrow AGC generation - O■ Preamplifier and ...
FMUSER 470-862 MHz 750W UHF Bandpass Filter 750W Digital TV DTV Band Pass Filter With Tunable Frequency for TX RX System $Ask for a quotation Sold: 23 FMUSER 470-862 MHz 1600W UHF Bandpass Filter 1.6kW Digital TV DTV Band Pass Filter With High Frequency Selectivity for TX RX System $...
Filter Block Updates: Added a Touch Wah type to the Filter block. This is similar to the Envelope Filter but uses a different type of detector and voltage-to-frequency converter. This type can be used to create interesting touch-sensitive filter sounds. It can also be used to replicate the...
A bandpass sigma-delta (Σ-Δ) modulator architecture based FM demodulator, suitable for software radio technology is investigated. The I-F stage of the circuit separates the inphase and quadrature (1 and Q) signals using a single circuit path, thus eliminating any I-Q differences due to comp...
Band Pass Filter controlled by Arduino. It is a HF band pass filter controlled by Arduino. It is designed for HF receivers. With this project, you can use a set of up to four HF bandpass filters that can be selected by Arduino. To do that you will need just two digital Arduino pins...
Next, a digital processor (360) filters and reduces noise in the digital phase differential signal using a bandpass filter (362), a de-emphasis filter (364), and an expandor (366) . Finally, a pulse-width-modulation audio amplifier (380) prepares the signal for reproduction on an audio ...
Integrated circuit for mobile telephone receiver signal and the attenuated signal through the low-pass filter as quadrature phase shift keying QPSK demodulator are demodulated, of which, connecting the ... 五十岚贞男,青木一晴 被引量: 0发表: 1997年 ...
The RDA5807 is an FM DSP integrated circuit receiver that operates in the 50 to 115MHz range and includes support for a low-noise amplifier. This device requires fewer external components compared to other similar products and offers features such as RDS/RBDS functionalities, direct auto gain co...
A distortion reducing circuit in an FM receiver comprises a distortion detector for receiving the output of an FM demodulating circuit. The distortion detector comprises a high pass filter, the output