Philips Nexperia PNX2000 Product Data page 23

Philips Semiconductors
The supported crystal/external clock frequencies are 27 MHz and 13.5 MHz. The crystal
oscillator is followed by a selectable divide-by-two frequency divider giving three available
clock frequencies, as shown in
Table 25:
Clock/Crystal Input
27 MHz
27 MHz
13.5 MHz
13.5 MHz
The crystal specification is:
Table 26:
Oscillator
frequency (f
13.5 MHz
27 MHz
9397 750 13928
Product data
V
DDA
on-chip
osc_in
off-chip
(a)
Fig 4. Application diagram: (a) slave/test mode, (b) oscillation mode
Primary clock settings
•
Package: surface mount.
•
Accuracy: (±50 ppm).
•
Temperature: (±50 ppm).
Operating temperature range: −20 to +70
•
•
Load capacitance: 30 pF.
Crystal parameters
Crystal load
) capacitance (C
c
10 pF
20 pF
30 pF
10 pF
20 pF
30 pF
Rev. 03 – 23 August 2004
V
pd xtm
SSA
XO
clkout
osc_out
n.c.
clock
(b)
Table 25.
Divider setting
x/1
x/2
x/1
x/2
o
C.
Max.crystal series
) resistance (R
L
Ω
< 600
Ω
< 255
Ω
< 140
Ω
< 130
Ω
< 50
n.a.
PNX2000
Audio video input processor
V V
pd xtm
DDA SSA
XO
osc_in osc_out
Cx1 Cx2
Clock frequency
27 MHz
13.5 MHz
13.5 MHz
6.75 MHz
External load
) capacitors (Cx1; Cx2)
S
2 x 18 pF
2 x 38 pF
2 x 58 pF
2 x 18 pF
38 pF; 18 pF
n.a.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
clkout
mce560
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