/*!
LTC6603: Dual, Matched, High Frequency Bandpass/Lowpass Filters

@verbatim

The LTC®6603 is a dual, matched, programmable lowpass
filter for communications receivers and transmitters. The
selectivity of the LTC6603, combined with its linear phase,
phase matching and dynamic range, make it suitable for
filtering in many communications systems. With 1.5°
phase matching between channels, the LTC6603 can be
used in applications requiring pairs of matched filters,
such as transceiver I and Q channels. Furthermore, the
differential inputs and outputs provide a simple interface
for most communications systems.

@endverbatim


http://www.analog.com/en/products/amplifiers/adc-drivers/fully-differential-amplifiers/ltc6603.html

http://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/dc1304a-b.html

Copyright 2018(c) Analog Devices, Inc.

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   notice, this list of conditions and the following disclaimer.
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   distribution.
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   contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.
 - The use of this software may or may not infringe the patent rights
   of one or more patent holders.  This license does not release you
   from the requirement that you obtain separate licenses from these
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 - Use of the software either in source or binary form, must be run
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*/

//! @ingroup Analog_to_Digital_Converters
//! @{
//! @defgroup LTC6603 LTC6603: Dual Matched, High Frequency Bandpass/Lowpass Filters
//! @}

/*! @file
    @ingroup LTC6603
    Library for LTC6603: Dual Matched, High Frequency Bandpass/Lowpass Filters
*/





#include <stdint.h>
#include <Arduino.h>
#include "Linduino.h"
#include "LT_SPI.h"
#include "LTC6603.h"
#include <SPI.h>

void LTC6603_write(uint8_t cs,  uint8_t *tx, uint8_t length)
// Reads the LTC6603
{
  uint8_t rx[4];
  spi_transfer_block(cs, tx, rx,length);    // Transfer 4 bytes=
}