Datasheet

dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610
DS70000591F-page 384  2009-2014 Microchip Technology Inc.
TABLE 27-17: PLL CLOCK TIMING SPECIFICATIONS (VDD = 3.0V TO 3.6V)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Symbol Characteristic Min Typ
(1)
Max Units Conditions
OS50 F
PLLI PLL Voltage Controlled
Oscillator (VCO) Input
Frequency Range
0.8 — 8 MHz ECPLL, XTPLL modes
OS51 F
SYS On-Chip VCO System
Frequency
100 — 200 MHz
OS52 T
LOCK PLL Start-up Time (Lock Time) 0.9 1.5 3.1 mS
OS53 D
CLK CLKO Stability (Jitter)
(2)
-3 0.5 3 % Measured over a 100 ms
period
Note 1: Data in “Typ” column is at 3.3V, +25°C unless otherwise stated. Parameters are for design guidance only
and are not tested in manufacturing.
2: These parameters are characterized by similarity, but are not tested in manufacturing. This specification is
based on clock cycle by clock cycle measurements. To calculate the effective jitter for individual time
bases or communication clocks, use this formula:
Peripheral Clock Jitter
D
CLK
FOSC
Peripheral Bit Rate Clock
--------------------------------------------------------------


------------------------------------------------------------------------=
For example: FOSC = 32 MHz, DCLK = 3%, SPI bit rate clock (i.e., SCK) is 2 MHz.
SPI SCK Jitter
DCLK
32 MHz
2 MHz
--------------------


------------------------------
3%
16
----------
3%
4
--------0.75%====
TABLE 27-18: AUXILIARY PLL CLOCK TIMING SPECIFICATIONS (VDD = 3.0V TO 3.6V)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Symbol Characteristic Min Typ
(1)
Max Units Conditions
OS56 F
HPOUT On-Chip, 16x PLL CCO
Frequency
112 118 120 MHz
OS57 F
HPIN On-Chip, 16x PLL Phase
Detector Input Frequency
7.0 7.37 7.5 MHz
OS58 T
SU Frequency Generator Lock
Time
——10µs
Note 1: Data in “Typ” column is at 3.3V, +25°C unless otherwise stated. Parameters are for design guidance only
and are not tested in manufacturing.