TRU050 Datasheet, PDF (11/14 Pages) List of Unclassifed Manufacturers – SINGLE DROP IN QUARTZ STABILIZED PLL SOLUTUION

TRU050, VCXO Based PLL
60K 1.0uF 90K 10K
19.440MHz
÷16
Pin 9
pin 6
∅
pin 2
pin 3 pin 1
pin 4 ^TRU050
10K, 2.2uF , 10K
Pin 15
19.440 MHz
Pin 13
2.430 MHz
The above loop has a 125 Hz bandwidth.
Figure 11. 19.440 Clock Smoothing
Table 5. Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
Symbol
PreHeat Time
Ramp Up
Time Above 217 ^oC
Time To Peak Temperature
Time At 260 ^oC
Ramp Down
t_S
R _UP
t_L
t _AMB-P
t_P
R _DN
The device has been qualified to meet the JEDEC
260
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
217
200
package body surface. The TRU050 device is
hermetically sealed so an aqueous wash is not an
150
issue.
Value
60 sec Min, 180 sec Max
3 ^oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6 ^oC/sec Max
R _UP
t_S
t _AMB-P
t_L
t_P
R _DN
25
Figure 12. Suggested IR profile
Time (sec)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 11 of 14
Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Rev: 26Aug2008