SP4T Antenna Switch - Sony
Description
SP4T Antenna Switch for GSM / CDMA / UMTS
CXM3569XR
Description
The CXM3569XR is a high power SP4T antenna switch for GSM / CDMA / UMTS applications.
The antenna port can be routed to either of the 4TRx ports.
The low insertion loss on transmit means increased talk time as the Tx power amplifier can be operated at a lower output level.
Built-in decoder reduces component count and simplifies PCB layout by allowing direct connection of the switch to digital base band control lines with the 1.
8 V CMOS logic levels.
The Sony GaAs JPHEMT MMIC Process is used for low insertion loss and high linearity.
Features
◆ Low Insertion Loss: 0.
31 dB typical (Cellular / GSM Low Band) 0.
41 dB typical (PCS / GSM High Band) 0.
46 dB typical (IMT2000) IIP3=70 dBm XQFN-20P (2.
5 mm × 2.
5 mm × 0.
35 mm Typ.
)
◆ High Linearity: ◆ Small Package Size: ◆ Lead-Free and RoHS Compliant
◆ No DC Blocking Capacitors Required on RF ports.
Structure
GaAs JPHEMT MMIC
Absolute Maximum Ratings
◆ Bias Voltage ◆ Control Voltage ◆ Maximum input power ◆ Operating Temperature ◆ Storage Temperature ◆ Maximum power dissipation PD ◆ Copper-clad lamination of glass board(4 layer) Vdd Vctl [Ant, RF1, RF2, RF3, RF4] 4 V (Ta = 25 C) 3.
6 V (Ta = 25 C) 35 dBm (410 to 2690 MHz, Ta = 25 C) -35 C to +90 C -65 C to +150 C 500 mW 30 mm, t=0.
8 mm, FR-4
*NOTICE Please use this product without exceeding PD value showed on it's specification.
If it is used with exceeding PD value even for a moment, there are possibilities of degradation or breakdown because of the heat generated by product operation.
GaAs MMICs are ESD sensitive devices.
Special handling precautions are required.
1
CXM3569XR
Block Diagram
ANT MMIC Switch
RF1 RF2 RF3 RF4
CMOS Decoder
CTL A/B VDD
Block Diagram of RF Switch
Ant F1 F5
RF1
RF2 F2 F6
RF3 F3 F7
RF4 F4 F8
2
CXM3569XR
Truth Table
ON Path CTLA ANT – RF1 L ANT – RF2 H ANT – RF3 L ANT – RF4 H CTLB L L H H F1 ON OFF OFF OFF F2 OFF ON OFF OFF F3 OFF OFF ON OFF F4 OFF OFF OFF ON ...
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