Kenwood TS-590S manual 4 DSP, Multipurpose 32-bitFloating Point DSP

4 DSP

4.1 Multipurpose 32-bit Floating Point DSP

Figure 4-1 describes the DSP*1 of the TS-590S and peripheral devices connected to the DSP including ADCs*2 and DACs*3.

RIF/DET ADC AK5385B

MIC

VGS䊶AO ADC WM8782

ANI/USB䊶AI

FLASH

MEMORY

DSP

TMS320C6726B

221.184 MHz

DAC

AK4382A

DAC

AK4387

DAC

AK4387

TIF/MOD

AF

VGS䊶AI

ANO

AGCV

USB䊶ANO

∝com

Figure 4-1 TS-590S DSP and Peripheral Devices

*1 DSP: digital signal processor

*2 ADC: A/D converter

*3 DAC: D/A converter

The heart of the signal processing function is a 32-bit floating point TMS320C6726B DSP from Texas Instruments Incorporated (Figure 4-2) and it is operated at the clock frequency of 221 MHz.

For ADCs placed at the receive IF signal input and the microphone input, 24-bit ΔΣADC AK5385Bs from AKM Semiconductor, Incorporated are placed, and for DACs placed at the transmit IF signal output and at the audio output, 24-bit ΔΣDAC AK4382As also from AKM Semiconductor, Incorporated are placed. For other applications such as at the external terminals, USB audio, and audio input to and output from the optional VSG-1, 24-bit ΔΣADCs and ΔΣDACs are implemented. All these converters are operated at the sampling frequency of 96 kHz.

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Figure 4-2 TMS320C6726B

CONTENTS TS-590S