DSPIC33FJ128MC802-I/SO Microchip Technology, DSPIC33FJ128MC802-I/SO Datasheet - Page 288

• Manufacturer Part Number: DSPIC33FJ128MC802-I/SO
• Description: IC DSPIC MCU/DSP 128K 28SOIC
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ128MC802-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 128KB (128K x 8)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 21
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 6x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Product: DSCs
• Data Bus Width: 16 bit
• Processor Series: DSPIC33F
• Core: dsPIC
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Data Ram Size: 16 KB
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

23.4
The DAC clock signal clocks the internal logic of the
Audio DAC module. The data sample rate of the Audio
DAC is an integer division of the rate of the DAC clock.
The DAC clock is generated via a clock divider circuit
that accepts an auxiliary clock from the auxiliary oscil-
lator. The divisor ratio is programmed by clock divider
FIGURE 23-1:
FIGURE 23-2:
DS70291D-page 288
Note: V
DAC CLOCK
CONTROL
OD
Note 1:
+ = V
Count (DAC1RDAT)
Output (DAC1RN)
Output (DAC1RP)
Negative DAC
DACH
Positive DAC
DAC input
BLOCK DIAGRAM OF AUDIO DIGITAL-TO-ANALOG (DAC) CONVERTER
AUDIO DAC OUTPUT FOR RAMP INPUT (UNSIGNED)
If DAC1RDAT and DAC1LDAT are empty, data will be taken from the DACDFLT register.
- V
V
DACL
0x0000
V
0xFFFF
V
DACFDIV<6:0>
V
DACL
DACL
DACH
DACH
, V
OD
V
V
- = V
DACM
ACLK
DACM
DACL
DAC1RDAT
DAC1LDAT
- V
CLK DIV
DACH
; refer to Audio DAC Module Specifications, Table 31-44, for typical values.
Preliminary
DACDFLT
bits (DACFDIV<6:0>) in the DAC Control register
(DAC1CON). The resulting DAC clock must not exceed
25.6 MHz. If lower sample rates are to be used, then
the DAC filter clock frequency may be reduced to
reduce power consumption. The DAC clock frequency
is 256 times the sampling frequency.
Note 1
Note 1
D/A
D/A
© 2009 Microchip Technology Inc.
Amp
Amp
Right Channel
Left Channel
DAC1RM
DAC1RP
DAC1RN
DAC1LM
DAC1LP
DAC1LN