2.8625

3.2375

1.25

1.25

25.725

30.725

Backing plate

28.2250±0.0125

Socket size

0.850±0.025 (x2)

Alignment hole

0.80 typ.

0.475 pad

20.00 (x4)

2.54

5.08

Orientation mark

1.71 0.05 (x4)

Mounting Hole

Recommended PCB Layout

Top View

Target PCB Recommendations

Total thickness: 2.4mm min.

Plating: Gold or Solder finish.

PCB Pad height: Same or higher than solder mask.

NOTE: Steel backing plate may be required based on end user's application.

*Note: BGA pattern is not symmetrical

with respect to the mounting holes.

Ironwood Electronics, Inc.

Tele: (800) 404-0204

www.ironwoodelectronics.com

Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all

other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice.

Description: Recommended PCB Layout

Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams.

STATUS: Released

REV. B

DATE: 2/17/2012

Material: N/A

Finish: N/A

Weight: 36.50

SG-BGA-6355 Drawing

SCALE: 3:1

SHEET: 2 OF 5

ENG: S. Huang

FILE: SG-BGA-6355

DRAWN BY: S. Huang