Sony CXG1125ER Datasheet
CXG1125ER
High Power 6
Description
The CXG1125ER is a high power antenna switch
MMIC for PDC dual 800MHz and 1.5GHz. This IC is
suited to connect 2Tx/3Rx to one of 4 antennas
equipped with full packet mode. The CXG1125ER
has on-chip logic circuit for operation with 6 CMOS
inputs. The Sony's GaAs J-FET process is used for
low insertion loss and low voltage operation.
Features
• Low insertion loss: 0.5dB @900MHz, 0.7dB @1.5GHz
• High linearity: Harmonic < – 65dBc
• CMOS compatible input control
• Small package: 24-pin VQFN (4.0mm × 4.0mm)
Applications
6 × 4 antenna switch for digital cellular such as PDC handsets
××
× 4 Antenna Switch MMIC with Integrated Control Logic for PDC Full Packet
××
24 pin VQFN (Plastic)
Structure
GaAs J-FET MMIC
Absolute Maximum Ratings (Ta = 25°C)
• Bias voltage VDD 7V
• Control voltage Vctl 5 V
• Operating temperature Topr –35 to +85 °C
• Storage temperature Tstg –65 to +150 °C
GaAs MMICs are ESD sensitive devices. Special handling precautions are required.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
– 1 –
E02112A25-PS
Block Diagram
Tx800
GND5
Dup_Out
Rx800D
Rx800A
Tx1.5
F10
F23
F25
F24
F1
F2
F5
F6
F3
F4
F7
F8
F12
F26
GND1
F14
F15
F17
CXG1125ER
Ext
Ant
F16
GND2
D_Ant
F18
Rx1.5
F11
F27
F13
GND3
GND4
D_Ext
F19
– 2 –
Pin Configuration and Recommended Circuit
CXG1125ER
Dup_Out
Rx800D
Rx800A
CTLA
CTLB
C
RF
GND5
RF
C
Cbypass
Cbypass
RF
C
13
14
15
16
17
18
12
Tx800
RF
C
GND
Tx1.5
RF
C
GND
Ext
RF
GND2
C
7891011
6
RF
C
5
4
GND1
GND
3
RF
C
2
Ant
D_Ext
CTLF
Cbypass
1
242322212019
Cbypass
GND3/CTLE
RF
C
Rx1.5
CTLC
Cbypass
CTLD
Cbypass
DD
V
Cbypass
GND4
D_Ant
When using this IC, the following external components should be used:
CRF: This capacitor is used for RF de-coupling and must be used for all applications.
100pF is recommended.
Cbypass: This capacitor is used for DC line filtering. 100pF is recommended.
– 3 –
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