TS68EN360MAB Atmel Corporation, TS68EN360MAB Datasheet - Page 18

• Manufacturer Part Number: TS68EN360MAB
• Description: 32-bit Communication Controller, 25 or 33 MHz
• Manufacturer: Atmel Corporation

7.6
Table 7-5.
Note:
7.6.1
18
Characteristic
PLL External Capacitor (XFC to VCCSYN)
MF< 5 (Recommended value MF x 400 pF)
MF> 4 (Recommended value MF x 540 pF)
External Capacitor For PLL
1. MF – multiplication factor.
TS68EN360
Examples:
GND = 0 V
DC
Figure 7-2.
Notes:
, T
C
(OUTPUT)
(OUTPUT)
= -55 to +125°C. The electrical specifications in this document are preliminary.
(INPUT)
CLKO1
CLKO2
EXTAL
1. MODCK1 pin = 0, MF = 1 ⇒ C
2. MODCK1 pin = 1, crystal is 32.768 kHz (or 4.192 MHz), initial MF = 401, initial frequency =
3. MODCK1 pin = 1, crystal is 32.768 kHz (or 4.192 MHz), initial MF = 401, initial frequency =
4. In order to get higher range, higher crystal frequency can be used (i.e. 50 kHz), in this case:
13.14 MHz, later on MF is changed to 762 to support a frequency of 25 MHz. Minimum C
is: 762 x 380 = 289 nF, Maximum C
MHz is: 762 x 540 = 414 nF. 289 nF < C
able value for C
13.14 MHz, later on MF is changed to 1017 to support a frequency of 33.34 MHz. Minimum
C
nF. The proper available value for C
Minimum C
C
XFC
XFC
(1)
(1)
5C
Clock Timing
4A
is: 1017 x 380 = 386 nF, Maximum C
< 390 nF.
4
XFC
XFC
is: 667 x 380 = 253 nF, Maximum C
is 390 nF.
5
5A
Symbol
XFC
c
2A
XFC
= 400 pF
XFC
XFC
is: 401 x 970 = 390 nF. The recommended C
2
1A
XFC
is 390 nF.
5D
5B
XFC
< 390 nF and closer to 414 nF. The proper avail-
MF x 340
MF x 380
is: 401 x 970 = 390 nF ⇒ 386 nF < C
1C
3A
Min
XFC
1
is: 401 x 970 = 390 nF ⇒ 386 nF <
3
MF x 480
MF x 970
Max
VOLTAGE MIDPOINT
2113B–HIREL–06/05
Unit
XFC
XFC
pF
pF
for 25
< 390
XFC