MA330028 Microchip Technology, MA330028 Datasheet - Page 152

• Manufacturer Part Number: MA330028
• Description: Daughter Cards & OEM Boards dsPIC33EP64MC504 PIM
• Manufacturer: Microchip Technology

Specifications of MA330028

• Rohs: yes
• Product: Daughter Cards
• Core: dsPIC
• Description/function: Plug-in-module with dsPIC33EP64MC504 device for use with DM330021 and DM330023 motor control development board
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 3 to 3.6 V
• Tool Is For Evaluation Of: dsPIC33EP64MC504
• For Use With: DM330021, DM330023

9.1
The dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/
50X, and PIC24EPXXXGP/MC20X family of devices
provide seven system clock options:
• Fast RC (FRC) Oscillator
• FRC Oscillator with Phase-Locked Loop (PLL)
• FRC Oscillator with postscaler
• Primary (XT, HS or EC) Oscillator
• Primary Oscillator with PLL
• Low-Power RC (LPRC) Oscillator
FIGURE 9-2:
EQUATION 9-2:
EQUATION 9-3:
DS70657E-page 152
Where,
N1 = PLLPRE + 2
N2 = 2 x (PLLPOST + 1)
M = PLLDIV + 2
Note 1:
F
F
SYS
IN
PLLPRE<4:0>
CPU Clocking System
=
0.8 MHz < F
F
÷ N1
IN
This frequency range must be met at all times.
×
⎛
⎝
------ -
N1
M
PLLI
PLL BLOCK DIAGRAM
F
F
⎞
⎠
F
OSC
VCO
=
F
(1)
OSC
PLLI
F
< 8.0 MHz
IN
CALCULATION
CALCULATION
=
×
F
⎛
⎝
IN
------------------------------------ -
(
(
PFD
PLLPRE
PLLDIV
×
⎛
⎝
--------------------- -
N1
M
×
+
+
N2
2
2
PLLDIV<8:0>
)
)
⎞
⎠
⎞
⎠
=
Preliminary
VCO
÷ M
F
120 MH
IN
×
⎛
⎝
---------------------------------------------------------------------------------------- -
(
Z
F
PLLPRE
< F
SYS
Instruction execution speed or device operating
frequency, F
EQUATION 9-1:
Figure 9-2
Equation 9-2
frequency (F
Equation 9-3
frequency (F
SYS
(1)
(
+
PLLPOST<1:0>
PLLDIV
< 340 MH
2
)
is a block diagram of the PLL module.
×
CY
÷ N2
IN
IN
2 PLLPOST
) and output frequency (F
) and VCO frequency (F
provides the relation between input
provides the relation between input
, is given by
(
+
Z
2
© 2011-2012 Microchip Technology Inc.
)
F
CY
F
DEVICE OPERATING
FREQUENCY
F
OSC
F
OSC
= Fosc/2
OSC
+
Equation
1
≤ 120 MHz @ +125ºC
≤ 140 MHz @ +85ºC
)
⎞
⎠
9-1.
SYS
OSC
).
).