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Digital signal controllers integrate 16-bit audio DAC module

Chandler, Ariz.—Microchip Technology Inc. announced six 28- and 44-pin 16-bit dsPIC digital signal controllers (DSCs) with a dual-channel, 100-ksps, 16-bit audio digital-to-analog conversion (DAC) module for price- or size-conscious embedded system designers who require improved audio performance or wish to add audio playback to existing embedded applications.

The dsPIC DSCs are DMA-enabled with 2 Kbytes of dual-port RAM to eliminate CPU overhead during data transfer. All feature 16 Kbytes RAM, including dual-port RAM. The dsPIC33 devices are offered with 64 and 128 Kbytes of flash memory, which can be used to store instructions or data. Microchip's DSCs feature full DSP capability for applications that wish to process, compress or decompress audio data.

Also included on the dsPIC DSCs are two analog comparators, a user-selectable 10- or 12-bit A/D converter, and a real-time clock and calendar. Serial peripherals include 2 UARTs, 2 SPIs, I²C and CAN2.0B. A Parallel Master/Slave Port (PMP) enables parallel connection to external memory, communication peripherals or displays. The devices also include Peripheral Pin Select (PPS), which permits digital peripherals to be remapped to other pins to achieve layout efficiency or access to pin-multiplexed peripherals.

Cyclic Redundancy Checking (CRC) hardware is also included on-chip. All devices are offered in Industrial (-40° to +85°C) and Extended (-40° to
+125°C) temperature ranges.

Pricing: Ranges from $3.67 to $4.18 each in 10,000-unit quantities.
Availability: Volume production is expected to be in place by the end of second quarter.

Datasheets: 64 KB flash—General Purpose: dsPIC33FJ64GP802
128 KB flash—General Purpose: dsPIC33FJ128GP802
64 KB flash—General Purpose: dsPIC33FJ64GP804
128 KB flash—General Purpose: dsPIC33FJ128GP804
64 KB flash—Motor Control and Power Conversion: dsPIC33FJ64MC802
128 KB flash—Motor Control and Power Conversion: dsPIC33FJ128MC802.

Microchip Technology, www.microchip.com

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