CD-700, VCXO Based PLL
60k
1.0uF 90k
10k
19.440 MHz
(pin 5)
÷16
∅
pin 3
pin 2
pin 1
pin16
VCXO
pin 13
19.440 MHz
pin 11
pin 15
pin 6
3.3 V
CD-700
÷8
2.430 MHz
10k, 2.2uF , 10k
Figure 11. 19.440 MHz Clock Smoothing
Table 5. Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
PreHeat Time
Ramp Up
Time Above 217
o
C
Time To Peak Temperature
Time At 260 C
Ramp Down
o
Symbol
t
S
R
UP
t
L
t
AMB-P
t
P
R
DN
Value
60 sec Min, 180 sec Max
3
o
C/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6
o
C/sec Max
Temperature (DegC)
The device has been qualified to meet the JEDEC
standard for Pb-Free assembly. The temperatures
and time intervals listed are based on the Pb-Free
small body requirements. The temperatures refer to
the topside of the package, measured on the
package body surface. The CD-700 device is
hermetically sealed so an aqueous wash is not an
issue.
260
t
L
R
UP
t
P
R
DN
217
200
150
t
S
t
AMB-P
25
Time (sec)
Figure 12. Suggested IR profile
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 11 of 14
Tel: 1-88-VECTRON-1
•
Web:
www.vectron.com
Rev : 06Apr08
VECTRON [ Vectron International, Inc ]
