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+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2011,2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_ANALOG_PLL_REFOUT_CC_H
+#define INCLUDED_ANALOG_PLL_REFOUT_CC_H
+
+#include <analog/api.h>
+#include <gr_sync_block.h>
+
+namespace gr {
+ namespace analog {
+
+ /*!
+ * \brief Implements a PLL which locks to the input frequency and outputs a carrier
+ * \ingroup sync_blk
+ *
+ * Input stream 0: complex
+ * Output stream 0: complex
+ *
+ * This PLL locks onto a [possibly noisy] reference carrier on the
+ * input and outputs a clean version which is phase and frequency
+ * aligned to it.
+ *
+ * All settings max_freq and min_freq are in terms of radians per
+ * sample, NOT HERTZ. The loop bandwidth determins the lock range
+ * and should be set around pi/200 -- 2pi/100. \sa
+ * pll_freqdet_cf, pll_carriertracking_cc
+ */
+ class ANALOG_API pll_refout_cc : virtual public gr_sync_block
+ {
+ public:
+ // gr::analog::pll_refout_cc::sptr
+ typedef boost::shared_ptr<pll_refout_cc> sptr;
+
+ /* \brief Make PLL block that outputs the tracked carrier signal.
+ *
+ * \param loop_bw: control loop's bandwidth parameter.
+ * \param max_freq: maximum (normalized) frequency PLL will lock to.
+ * \param min_freq: minimum (normalized) frequency PLL will lock to.
+ */
+ static sptr make(float loop_bw, float max_freq, float min_freq);
+ };
+
+ } /* namespace analog */
+} /* namespace gr */
+
+#endif /* INCLUDED_ANALOG_PLL_REFOUT_CC_H */