SPUC::loop_filter< Numeric > Class Template Reference
[Phase lock loop functions]

Loop Filter for use in PLL circuits. More...

#include <loop_filter.h>

Collaboration diagram for SPUC::loop_filter< Numeric >:

[legend]List of all members.

Public Member Functions
	loop_filter (void)
	Constructor.
void	reset (void)
	Reset.
Numeric	update (Numeric error)
	Normal call with input, returns output.
Public Attributes
long	k0_en
	enable first order branch
long	k1_en
	enable second order branch
Numeric	k0
	First order gain.
Numeric	k1
	second order gain
Numeric	k1_acc
	Accumulator for k1 branch (should not be written to).
Protected Attributes
Numeric	loop_out
Numeric	k1_prod
Numeric	k0_prod

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Detailed Description

template<class Numeric>
class SPUC::loop_filter< Numeric >

Loop Filter for use in PLL circuits.

: Template for 2nd order loop filter (for timing/carrier recovery, etc). Either branch can be enabled/disabled for 1st/2nd order operation There is no overflow protection on accumulator. Gains are not normalized.

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Constructor & Destructor Documentation

template<class Numeric> SPUC::loop_filter< Numeric >::loop_filter (  void   )  [inline]

Constructor.

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Member Function Documentation

template<class Numeric> void SPUC::loop_filter< Numeric >::reset (  void   )  [inline]

Reset.

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::update (  Numeric  error  )  [inline]

Normal call with input, returns output.

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Member Data Documentation

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::k0

First order gain.

template<class Numeric> long SPUC::loop_filter< Numeric >::k0_en

enable first order branch

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::k0_prod [protected]

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::k1

second order gain

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::k1_acc

Accumulator for k1 branch (should not be written to).

template<class Numeric> long SPUC::loop_filter< Numeric >::k1_en

enable second order branch

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::k1_prod [protected]

template<class Numeric> Numeric SPUC::loop_filter< Numeric >::loop_out [protected]

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The documentation for this class was generated from the following file:

• generic/loop_filter.h

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