cx28331 Mindspeed Technologies, cx28331 Datasheet - Page 61

• Manufacturer Part Number: cx28331
• Description: Single/dual/triple E3/ds3/sts-1line Interface Unit
• Manufacturer: Mindspeed Technologies

CX28331/CX28332/CX28333 (-1x)
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
Figure B-10. Typical Forced Convection Reflow Profile for Eutectic Sn63:Pb37
28333-DSH-001-A
Thermocouple Location
1 = BOTTOM GROUND
2 = TQFP4B
3 = BBA
4 = MCM
F1–F4 = Sample 1–4;
X
1= 221
2 = 225
3 = 227
4 = 226
X
1= 27
2 = 33
3 = 31
4 = 32
5 = 0
File = SMOLE42
TWO2 - D675-001
ZONE 1 = 18 °C
ZONE 5 = 180 °C
MAX SLOPES
MAXIMA
Deg./Point
236.7
236.1
232.3
233.3
Deg.
4.4
6.7
6.7
9.4
0.0
+X----->
2470
1700
F5 - ReScale X:
920
150
OPEN
Temp
SAMP 1 X = ?3
35.0
36.7
32.8
33.9
ZONE 2 = 185 °C
ZONE 6 = 190 °C
Peak temperature should be approximately 235
normally be less than 1.2 minutes at temperature above 183
inches/minute (top and bottom setting), FAN SPEED = 2500 RPM, NITROGEN
LEVEL = 1200 SCFH.
Mindspeed Proprietary and Confidential
Slope
1.1
1.1
1.1
1.1
0.0
Mindspeed Technologies
F6 - ReScale Y:
OPEN
SAMP 2 X = 67
Temp
147.2
157.8
153.9
160.0
ZONE 3 = 175 °C
ZONE 7 = 230 °C
Slope
1.1
0.9
1.7
1.1
0.0
F7 = PRINT:
Appendix B: Exposed Thin Quad Flat (ETQFP) Pack
SAMP 3 X = 182
OPEN
Temp
185.6
186.7
182.2
183.3
™
Slope
1.1
1.7
1.7
1.1
0.0
°
C, and the exposure time should
Msc = Menu:
ZONE 4 = 175 °C
ZONE 8 = 270 °C
SAMP 4 X = 244
OPEN
Temp
185.0
181.1
187.8
182.2
°
C. Belt Speed = 30
B.4 Solder Reflow Profile
Slope
–2.2
–4.4
–2.8
–3.3
0.0
STATUS–3
TEMP = 68
BATT = 5.893
P1s = 350
Act = X4321
00:00:01.0
04/29/98
12:00:08
100998_026
B-11