DSPIC30F2010-20E/SO Microchip Technology, DSPIC30F2010-20E/SO Datasheet - Page 113
DSPIC30F2010-20E/SO
Manufacturer Part Number
DSPIC30F2010-20E/SO
Description
IC,DSP,16-BIT,CMOS,SOP,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20IP.pdf
(26 pages)
2.DSPIC30F2010-20ISO.pdf
(202 pages)
3.DSPIC30F2010-20ISO.pdf
(6 pages)
4.DSPIC30F2010-20ISO.pdf
(26 pages)
Specifications of DSPIC30F2010-20E/SO
Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
12KB (4K x 24)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DSPIC30F2010-20E/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- DSPIC30F2011-20IP PDF datasheet
- DSPIC30F2010-20ISO PDF datasheet #2
- DSPIC30F2010-20ISO PDF datasheet #3
- DSPIC30F2010-20ISO PDF datasheet #4
- Current page: 113 of 202
- Download datasheet (3Mb)
18.4
The conversion trigger will terminate acquisition and
start the requested conversions.
The SSRC<2:0> bits select the source of the
conversion trigger.
The SSRC bits provide for up to five alternate sources
of conversion trigger.
When SSRC<2:0> = 000, the conversion trigger is
under software control. Clearing the SAMP bit will
cause the conversion trigger.
When SSRC<2:0> = 111 (Auto-Start mode), the con-
version trigger is under A/D clock control. The SAMC
bits select the number of A/D clocks between the start
of acquisition and the start of conversion. This provides
the fastest conversion rates on multiple channels.
SAMC must always be at least one clock cycle.
Other trigger sources can come from timer modules,
Motor Control PWM module or external interrupts.
18.5
Clearing the ADON bit during a conversion will abort
the current conversion and stop the sampling sequenc-
ing. The ADCBUF will not be updated with the partially
completed A/D conversion sample. That is, the
ADCBUF will continue to contain the value of the last
completed conversion (or the last value written to the
ADCBUF register).
If the clearing of the ADON bit coincides with an auto
start, the clearing has a higher priority.
After the A/D conversion is aborted, a 2 T
required before the next sampling may be started by
setting the SAMP bit.
If sequential sampling is specified, the A/D will continue
at the next sample pulse which corresponds with the
next channel converted. If simultaneous sampling is
specified, the A/D will continue with the next
multichannel group conversion sequence.
© 2011 Microchip Technology Inc.
Note:
Programming the Start of
Conversion Trigger
Aborting a Conversion
To operate the A/D at the maximum
specified conversion speed, the Auto
Convert Trigger option should be selected
(SSRC = 111) and the Auto Sample Time
bits should be set to 1 T
00001). This configuration will give a total
conversion period (sample + convert) of
13 T
The use of any other conversion trigger
will result in additional T
synchronize the external event to the A/D.
AD
.
AD
AD
(SAMC =
cycles to
AD
wait is
18.6
The A/D conversion requires 12 T
A/D conversion clock is software selected using a 6-bit
counter. There are 64 possible options for T
EQUATION 18-1:
The internal RC oscillator is selected by setting the
ADRC bit.
For correct A/D conversions, the A/D conversion clock
(T
of 83.33 ns (for V
“Electrical Characteristics”
other operating conditions.
Example 18-1
ADCS<5:0> bits, assuming a device operating speed
of 30 MIPS.
EXAMPLE 18-1:
AD
) must be selected to ensure a minimum T
Therefore,
Set ADCS<5:0> = 5
Selecting the A/D Conversion
Clock
T
ADCS<5:0> = 2 •
Actual T
AD
= T
ADCS<5:0> = 2
shows a sample calculation for the
CY
dsPIC30F2010
AD
T
T
DD
* (0.5 * (ADCS<5:0> + 1))
AD
CY
= 2 •
= 4.09
=
=
= 99 ns
A/D CONVERSION CLOCK
A/D CONVERSION CLOCK
CALCULATION
= 5V). Refer to
= 84 ns
= 33 ns (30 MIPS)
T
33 ns
T
T
CY
2
AD
CY
84 ns
2
33 ns
• (ADCS<5:0> + 1)
for minimum T
T
T
AD
CY
– 1
AD
• (5 + 1)
. The source of the
DS70118J-page 113
– 1
– 1
Section 22.0
AD
AD
.
AD
under
time
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