1
E01743-PS
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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.
CXG1127ER
24 pin VQFN (Plastic)
High Power 5
××
××
×
4 Antenna Switch MMIC with Integrated Control Logic for PDC Dual Phone
Description
The CXG1127ER is a high power antenna switch
MMIC for PDC 800MHz and 1.5GHz dual phone. The
CXG1127ER is suited to connect 2Tx/3Rx to one of
4 antennas. The CXG1127ER has on-chip logic
circuit for operation with 5 CMOS inputs. The Sony's
GaAs J-FET process is used for low insertion loss and
low voltage operation.
Features
· Low insertion loss: 0.45dB @900MHz, 0.55dB @1.5GHz
· High linearity: Harmonic < 65dBc
· CMOS compatible input control
· Small package: 24-pin VQFN (4.0mm
×
4.0mm)
Applications
5
×
4 antenna switch for digital cellular such as PDC handsets
Structure
GaAs J-FET MMIC
Absolute Maximum Ratings (Ta = 25°C)
· Bias voltage
V
DD
7
V
· Control voltage
V
DD
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.
3
CXG1127ER
Pin Configuration/Recommended Circuit
When using this IC, the following external components should be used:
C
RF
:
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.
In the case that Rx1 is not used, the processing of the pin is as follows:
· Rx1 is recommended to be open.
· CTLD/GNG4B should be grounded as a DC.
1
2
3
4
5
6
7
8
9
10
11
24
23
22
21
20
19
13
14
15
16
17
18
Ant3
GND
GND3
C
RF
(100pF)
Z3
Ant2
GND2
C
RF
(100pF)
Z2
Ant1
C
RF
(100pF)
GND
CTLD/GND4B
CTLE
Cbypass
(100pF)
Z4B
Z4A
V
DD
Cb
ypass
(100pF)
CTLA
Cb
ypass
(100pF)
CTLB
Cb
ypass
(100pF)
CTLC
Cb
ypass
(100pF)
Rx1
open
Rx2
C
RF
(100pF)
Tx2
GND
GND
C
RF
(100pF)
Tx1
C
RF
(100pF)
Ant4
GND4A
C
RF
(100pF)
Rx3
C
RF
(100pF)
Z1A
GND1A
Z1B
GND1B
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