DSPIC30F5015-30I/PT Microchip Technology Inc., DSPIC30F5015-30I/PT Datasheet - Page 156

• Manufacturer Part Number: DSPIC30F5015-30I/PT
• Description: DSP, 16-Bit, 66 KB Flash, 2KB RAM, 52 I/O, TQFP-64
• Manufacturer: Microchip Technology Inc.
• Type: DSPr

Specifications of DSPIC30F5015-30I/PT

• A/d Inputs: 16-Channels, 10-Bit
• Cpu Speed: 30 MIPS
• Eeprom Memory: 1K Bytes
• Input Output: 52
• Interface: CAN, I2C, SPI, UART/USART
• Ios: 52
• Memory Type: Flash
• Number Of Bits: 16
• Package Type: 64-pin TQFP
• Programmable Memory: 66K Bytes
• Ram Size: 2K Bytes
• Timers: 5-16-bit, 2-32-bit
• Voltage, Range: 2.5-5.5
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

dsPIC30F5015/5016
The configuration guidelines give the required setup
values for the conversion speeds above 500 ksps,
since they require external V
are some differences in the configuration procedure.
Configuration details that are not critical to the
conversion speed have been omitted.
The following figure depicts the recommended circuit
for the conversion rates above 500 ksps.
FIGURE 21-2:
21.7.1
The configuration for 1 Msps operation is dependent on
whether a single input pin is to be sampled or whether
multiple pins will be sampled.
21.7.1.1
For conversions at 1 Msps for a single analog input, at
least two sample and hold channels must be enabled.
The analog input multiplexer must be configured so
that the same input pin is connected to both sample
and hold channels. The ADC converts the value held
on one S/H channel, while the second S/H channel
acquires a new input sample.
DS70149C-page 154
C2
0.1 F
R2
10
V
DD
1 Msps CONFIGURATION
GUIDELINE
C1
0.01 F
Single Analog Input
V
DD
R1
10
ADC VOLTAGE REFERENCE SCHEMATIC
REF
pins usage and there
1
2
3
4
5
6
MCLR
8
V
V
11
12
13
14
V
V
REF
REF
SS
DD
AV
-
+
DD
dsPIC30F5015
V
DD
V
DD
21.7.1.2
The ADC can also be used to sample multiple analog
inputs using multiple sample and hold channels. In this
case, the total 1 Msps conversion rate is divided among
the different input signals. For example, four inputs can
be sampled at a rate of 250 ksps for each signal or two
inputs could be sampled at a rate of 500 ksps for each
signal. Sequential sampling must be used in this con-
figuration to allow adequate sampling time on each
input.
V
V
Multiple Analog Inputs
DD
48
47
46
45
44
43
42
SS
40
39
37
36
35
34
33
V
DD
© 2007 Microchip Technology Inc.
C8
1 mF
C5
1 mF
V
V
DD
DD
C7
0.1 mF
C4
0.1 mF
V
V
DD
DD
C6
0.01 mF
C3
0.01 mF
V
V
DD
DD