Description: pll phasenregler
The ltering operation of the error voltage (coming out from the Phase Detec-
tor) is performed by the loop lter. The output of PD consists of a dc component
superimposed with an ac component. The ac part is undesired as an input to the
VCO, hence a low pass lter is used to lter out the ac component. Loop lter is
one of the most important functional block in determining the performance of the
loop. A loop lter introduces poles to the PLL transfer function, which in turn is a
parameter in determining the bandwidth of the PLL. Since higher order loop lters
o er better noise cancelation, a loop lter of order 2 or more are used in most of the
critical application PLL circuits.
8 Platform: |
Size: 348160 |
Author:mtms |
Hits:
Description: The ltering operation of the error voltage (coming out from the Phase Detec-
tor) is performed by the loop lter. The output of PD consists of a dc component
superimposed with an ac component. The ac part is undesired as an input to the
VCO, hence a low pass lter is used to lter out the ac component. Loop lter is
one of the most important functional block in determining the performance of the
loop. A loop lter introduces poles to the PLL transfer function, which in turn is a
parameter in determining the bandwidth of the PLL. Since higher order loop lters
o er better noise cancelation, a loop lter of order 2 or more are used in most of the
critical application PLL circuits.
8 Platform: |
Size: 21504 |
Author:mtms |
Hits:
Description: The ltering operation of the error voltage (coming out from the Phase Detec-
tor) is performed by the loop lter. The output of PD consists of a dc component
superimposed with an ac component. The ac part is undesired as an input to the
VCO, hence a low pass lter is used to lter out the ac component. Loop lter is
one of the most important functional block in determining the performance of the
loop. A loop lter introduces poles to the PLL transfer function, which in turn is a
parameter in determining the bandwidth of the PLL. Since higher order loop lters
o er better noise cancelation, a loop lter of order 2 or more are used in most of the
critical application PLL circuits.
8 Platform: |
Size: 17408 |
Author:mtms |
Hits:
Description: The ltering operation of the error voltage (coming out from the Phase Detec-
tor) is performed by the loop lter. The output of PD consists of a dc component
superimposed with an ac component. The ac part is undesired as an input to the
VCO, hence a low pass lter is used to lter out the ac component. Loop lter is
one of the most important functional block in determining the performance of the
loop. A loop lter introduces poles to the PLL transfer function, which in turn is a
parameter in determining the bandwidth of the PLL. Since higher order loop lters
o er better noise cancelation, a loop lter of order 2 or more are used in most of the
critical application PLL circuits.
8 Platform: |
Size: 24576 |
Author:mtms |
Hits:
Description: The ltering operation of the error voltage (coming out from the Phase Detec-
tor) is performed by the loop lter. The output of PD consists of a dc component
superimposed with an ac component. The ac part is undesired as an input to the
VCO, hence a low pass lter is used to lter out the ac component. Loop lter is
one of the most important functional block in determining the performance of the
loop. A loop lter introduces poles to the PLL transfer function, which in turn is a
parameter in determining the bandwidth of the PLL. Since higher order loop lters
o er better noise cancelation, a loop lter of order 2 or more are used in most of the
critical application PLL circuits.
8 Platform: |
Size: 33792 |
Author:mtms |
Hits:
Description: we address the design of economical
recursive generalized comb filters (GCFs) by proposing an ef-
ficient technique to quantize the multipliers in the z-transfer
function employing power-of-2 (PO2) terms. GCFs are efficient
anti-aliasing decimation filters with improved selectivity and
quantization noise rejection performance around the so-called
folding bands with respect to classical comb filters. The proposed
quantization technique guarantees perfect pole–zero cancelation
in the rational z-transfer function of the GCFs, thus totally
avoiding instability problems. Moreover, we propose the use of a
simple droop compensator for the sake of recovering the passband
droop distorting the useful digital signal in the baseband. A design
example is proposed with the aim of showing the application of
the proposed technique, and a practical architecture of a sample
third-order GCF is discussed. Platform: |
Size: 2818048 |
Author:muthupandy |
Hits:
Search - noise cancelation