CD-700, VCXO Based PLL
60k
1.0uF 90k 10k
19.440 MHz (pin 5)
÷16
pin 3
pin 2
pin 1
pin16
pin 13
pin 11
VCXO
19.440 MHz
∅
2.430 MHz
÷8
CD-700
pin 15
pin 6
10k, 2.2uF , 10k
3.3 V
Figure 11. 19.440 MHz Clock Smoothing
Table 5. Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
Symbol
Value
PreHeat Time
60 sec Min, 180 sec Max
t S
3 oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
Ramp Up
R UP
t L
Time Above 217 oC
Time To Peak Temperature
Time At 260 oC
t AMB-P
t P
20 sec Min, 40 sec Max
6 oC/sec Max
Ramp Down
R DN
t L
t P
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
R UP
217
200
R DN
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 ]
