SG901-1078-CT Sagrad Inc, SG901-1078-CT Datasheet - Page 8

• Manufacturer Part Number: SG901-1078-CT
• Description: RF TXRX WI-FI 802.11 2.45GHZ
• Manufacturer: Sagrad Inc
• Series: -r

Specifications of SG901-1078-CT

• Frequency: 2.45GHz
• Data Rate - Maximum: 72.2Mbps
• Modulation Or Protocol: 802.11 b/g/n
• Applications: General Purpose
• Power - Output: 18.2dBm
• Sensitivity: -96.3dBm
• Voltage - Supply: 2.7 V ~ 3.6 V
• Current - Receiving: 135mA
• Current - Transmitting: 270mA
• Data Interface: PCB, Surface Mount
• Memory Size: -
• Antenna Connector: U.FL
• Operating Temperature: 0°C ~ 70°C
• Package / Case: Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 831-1017

Recommended Layout
conductivity. Soldering coverage should be maximized and checked via x-ray for proper design. There is
a trade off in providing enough solder for conductivity, and too much which allows the module to “float”
on the paddle creating reliability issues. Sagrad recommends two approaches, a large center via that
allows excess soldering to flow down into the host PCB with smaller vias around it. Or many smaller vias
with just enough space for the viscosity of the chosen solder/flux to allow some solder to flow into the
smaller vias. Each of these approaches need to result in 60% or more full contact solder coverage on the
paddle after reflow. Sagrad strongly encourages PCB layout teams to work with their EMS providers to
insure vias and solder paste designs will result in satisfactory performance.
Note: Pin one is on the bottom left of this diagram.
This view is viewed from the top.
1-321-255-0515
1.6mm
1.6mm
PCB design requires detailed review of the center exposed pad. This pad requires good thermal
8.0mm
8.0mm
1.57mm
1.57mm
1
1
WWW.SAGRAD.COM
20.25mm
20.25mm
10mm
10mm
2.0mm
2.0mm
SG901-1078 ADVANCE INFORMATION
Not to scale
Not to scale
NOTE: 1 Center paddle centered on
NOTE: 1 Center paddle centered on
package layout.
package layout.
vias for ground and thermal transfer
vias for ground and thermal transfer
characteristics.
characteristics.
DOC#: SG914-0028 rev. 1.2
2 Add maximum number of
2 Add maximum number of
12.5mm
12.5mm