AD9432 데이터 시트보기 (PDF) - Analog Devices
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AD9432 Datasheet PDF : 20 Pages
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AD9432
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
52-Lead Plastic Quad Flatpack (LQFP)
(ST-52)
0.063 (1.60)
MAX
0.030 (0.75)
0.018 (0.45)
39
40
SEATING
PLANE
0.472 (12.00) SQ
TOP VIEW
(PINS DOWN)
27
26
0.394
(10.0)
SQ
52
0.006 (0.15)
0.002 (0.05)
0.057 (1.45)
0.053 (1.35)
1
0.026 (0.65)
BSC
14
13
0.015 (0.38)
0.009 (0.22)
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE
ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
THERMALLY ENHANCED
52-Lead Power Thin Plastic Quad Flatpack (LQFP_ED)
(SQ-52)
0.472 (12.00) SQ
0.307 (7.80)
52
1
40
39
0.104 (2.65)
0.098 (2.50) (4 PLCS)
0.093 (2.35)
0.093 (2.35)
0.087 (2.20) (4 PLCS)
0.081 (2.05)
40
39
52
1
TOP VIEW
(PINS DOWN)
0.402 (10.20)
0.394 (10.00) SQ
0.386 (9.80)
EXPOSED
HEATSINK
(CENTERED)
0.236 (6.00)
0.232 (5.90)
0.228 (5.80)
13
14
27
26
27
26
13
14
0.026 (0.65)
0.015 (0.38)
0.013 (0.32)
0.009 (0.22)
0.236 (6.00)
0.232 (5.90)
0.228 (5.80)
BOTTOM VIEW
(PINS UP)
0.063
(1.60)
MAX
0.030 (0.75)
0.024 (0.60)
0.018 (0.45)
SEATING
PLANE
VIEW A
0.057 (1.45)
0.055 (1.40)
0.053 (1.35)
0.006 (0.15)
0.002 (0.05)
0.004 (0.10)
COPLANARITY
VIEW A
NOTES
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS ARE ROUNDED-OFF MILLIMETER
EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
2. ALTHOUGH NOT REQUIRED IN ALL APPLICATIONS,THE AD9432 HAS AN EXPOSED METALLIC PAD ON THE
PACKAGE BOTTOM WHICH IS INTENDED TO ENHANCE THE HEAT REMOVAL PATH. TO MAXIMIZE THE REMOVAL
OF HEAT, A LAND PATTERN WITH CLOSELY SPACED THERMAL VIAS TO THE GROUND PLANE(S) SHOULD
BE INCORPORATED ON THE PCB WITHIN THE FOOTPRINT OF THE PACKAGE CORRESPONDING TO THE
EXPOSED METAL PAD DIMENSIONS OF THE PACKAGE. THE SOLDERABLE LAND AREA SHOULD BE SOLDER
MASK DEFINED AND BE AT LEAST THE SAME SIZE AND SHAPE AS THE EXPOSED PAD AREA ON THE
PACKAGE. AT LEAST 0.25 MM CLEARANCE BETWEEN THE OUTER EDGES OF THE LAND PATTERN AND THE
INNER EDGES OF THE PAD PATTERN SHOULD BE MAINTAINED TO AVOID ANY SHORTS.
–18–
REV. E
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