Sony CXG1045N Datasheet
High Power DPDT Switch for GSM
Description
The CXG1045N is a DPDT (Dual Pole Dual Throw)
antenna switch MMIC used in personal communication
handsets such as GSM, GSM1800 or dualband. This
IC is designed using the Sony's GaAs J-FET process.
Features
• Low insertion loss: 0.4dB (Typ.) @900MHz
0.7dB (Typ.) @1.8GHz
• High power switching P1dB:38dBm (Typ.) @900MHz
37dBm (Typ.) @1.8GHz
• Small package SSOP-8pin: (3 × 6.4 × 1.25mm)
• Low current: 200µA (Typ.)
Application
• GSM900 or GSM1800 handsets
• GSM900/GSM1800 dualband handsets
Structure
GaAs J-FET MMIC
Operating Condition
Control voltage: Vctl (H) – Vctl (L): 2.5 to 5V @Ta = 25°C
– 1 –
E98902A92-PS
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.
CXG1045N
8 pin SSOP (Plastic)
∗
GaAs MMICs are ESD sensitive devices. Special handling precautions are required.
For the availability of this product, please contact the sales office.
– 2 –
CXG1045N
Block Diagram
RF1
RF2
RF4
RF3
VCTLA
High
Low
VCTLB
Low
High
RF1 – RF2, RF3 – RF4 ON
RF2 – RF3, RF4 – RF1 OFF
RF1 – RF2, RF3 – RF4 OFF
RF2 – RF3, RF4 – RF1 ON
Electrical Characteristics (1) (Ta = 25°C)
Min.
18
15
36
35
Typ.
0.4
0.7
21
17
1.2
38
37
100
200
Max.
0.7
1.0
1.4
–31
–31
–31
–31
500
350
Unit
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
ns
µA
Item
Insertion loss
Isolation
VSWR
2nd harmonics
3rd harmonics
Input power for 1dB compression
Switching time
Control current
Symbol
IL
ISO
VSWR
2fo
3fo
P1dB
TSW
I CTL
Condition
∗3, ∗4
∗1, ∗2, ∗5
∗3, ∗4
∗1, ∗2, ∗5
∗1
to
∗5
∗1, ∗2
∗3
∗1, ∗2
∗3
∗3
∗1, ∗2
0/5V control
∗1
RF Input terminal is RF2. (RF2 → RF1, RF2 → RF3), Pin = 32dBm, 1710 to 1785MHz, 0/5V control
∗2
RF Input terminal is RF4. (RF4 → RF1, RF4 → RF3), Pin = 32dBm, 1710 to 1785MHz, 0/5V control
∗3
RF Input terminal is RF4. (RF4 → RF1, RF4 → RF3), Pin = 34.5dBm, 880 to 915MHz, 0/5V control
∗4
Pin = 10dBm, 925 to 960MHz, 0/5V control
∗5
Pin = 10dBm, 1805 to 1880MHz, 0/5V control
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