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CXG1028ATN
GSM900/1800/1900 SPDT TX/RX Switch
Description The CXG1028ATN is a high power SPDT switch suitable for Digital Cellular applications. This device is part of a growing family of MMIC Antenna switches for digital cellular and cordless radios. It uses the state-of-the-art Sony GaAs JFET process. Features * Positive voltage supply only * Low insertion loss, typically 0.3dB at 34.5dBm, 900MHz * Low Harmonics: -64.5dBc Max. at 34.5dBm (Vctl = 5V, 25C) * Stable Characteristics over wide temperature range * Fast switching-100ns Typical * Low current consumption, 190A typical at 5V * 10 pin TSSOP package (3.2 x 2.8mm) Applications * GSM900 handportable applications * GSM1800 handportable * GSM1900 handportable * GSM900/1800/1900 Base station * Other digital cellular and wireless local loop applications Typical Application
Internal Antenna
10 pin TSSOP (Plastic)
ESD As with other GaAs semiconductors, ESD precautions must be adhered to.
PA TX IN
CXG1028ATN
RX OUT LNA
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.
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E98527-PS
CXG1028ATN
Electrical Characteristics Measurement Conditions, unless otherwise stated:Ta = 25C. Parameter Insertion loss Symbol IL CW Min. Typ. 0.3 0.5 20 22 17 1.2 1 Output Harmonics 2fo,3fo 2 1 Input Power for 0.2dB Compression P0.2dB 2 1 Input Power for 1dB Compression Switching Speed TSW Control Current P1dB TSW ICTL 2 36 35 -35 36 35 38 37 100 190 350 -30 dBm dBm dBm dBm dBm dBm ns A Max. 0.6 0.8 Unit dB dB dB dB 1, 3 2, 4 1, 3 Isolation VSWR ISO VSWR 2, 4
Condition
1 Pin = 34.5dBm, 880 to 915MHz, 0/5V Control 2 Pin = 32dBm, 1710 to 1785MHz, 0/5V Control 3 Pin = 10dBm, 925 to 960MHz, 0/3V Control 4 Pin = 10dBm, 1805 to 1880MHz, 0/3V Control
Control Voltage Selection, Vctl (H) The choice of control voltage will determine the compression characteristic of the switch and the generation of harmonics. The table above indicates P0.2dB, P1dB. The graphs below indicate the sensitivity of harmonic levels:
2nd Harmonic with Power/Control Volts -40 Vctl = 0/3V Vctl = 0/3.5V -50 -20
3rd Harmonic with Power/Control Volts Vctl = 0/3V -30 -40 -50 -60 -70 -80 Vctl = 0/3.5V Vctl = 0/4V Vctl = 0/4.5V Vctl = 0/5V
Harmonic level [dBc]
Vctl = 0/4.5V -60 Vctl = 0/5V
-70
Harmonic level [dBc]
Vctl = 0/4V
-80 32 33 34 Input power [dBm] 35 36
-90 32 33 34 Input power [dBm] 35 36
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CXG1028ATN
Compression Characteristics Measurement Conditions: Vctl (L) = 0V, Ta = 25C
Insertion loss, isolation vs. Input power 0 Insertion loss -2 0 VCTL (H) = 5V VCTL (H) = 4V VCTL (H) = 3V 5
-4
Insertion loss (dB)
-6
10
Isolation
VCTL (H) = 3V VCTL (H) = 4V VCTL (H) = 5V 15
20
24
28
32
36
40
Input power (dBm)
Frequency Characteristics Measurement Conditions: Vctl (L) = 0V, Vctl (H) = 5V, Pin = 0dBm CW, Ta = 25C
Insertion loss, isolation vs. Frequency 0 Insertion loss -1 -10 0
Insertion loss (dB)
-2 Isolation -3
-20
-30
-4
-40
-5 0 1 2 3 Frequency (GHz)
-50
-3-
Isolation (dB)
Isolation (dB)
CXG1028ATN
Schematic/Pinout Pin No.
1 CTLB GND Port1 GND CTLA 10pin TSSOP (PLASTIC) 10 Port3 GND GND GND Port2
FUNCTION CONTROL B GROUND RF PORT1 GROUND CONTROL A RF PORT2 GROUND GROUND GROUND RF PORT3
1 2 3 4 5 6 7 8 9
Block Diagram/Truth Table
10
VCTLA
Port3 Port1 Port2
VCTLB Low High Port1-Port2 ON Port1-Port3 OFF Port1-Port2 OFF Port1-Port3 ON
High Low
External Circuitry
CTLB Rctl 1k C2 100pF Port3
1
C1 100pF
10
Rrf 100k
2
Port1
9
3
C2 100pF
CXG1028ATN
8
4
Rctl CTLA 1k
7
C2 Port2 100pF
5
C1 100pF
6
Rrf 100k
When using the CXG1028ATN, the following external components should be used: C1: This is used for signal line filtering 100pF is recommended. C2: This is used for RF De-coupling and must be used in all applications. 100pF is recommended. Rrf: This resistor is used to stabilize the dc operating point at high power levels. A value of 100k is recommended. Rctl: This resistor is used to reduce the current consumption or to give improved ESD performance.
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CXG1028ATN
ESD Precautions As this is a GaAs MMIC, ESD precautions must be adhered to, as outlined in sony's standard Data Book. Please contact Sony if detailed ESD performance data is required.
Absolute Maximum Ratings (Ta = 25C) * Control voltage Vctl 6 V * Control Current Ictl 2 mA * Operating temperature Topr -35 to +85 C * Storage temperature Tstg -65 to +150 C * Input Power Pin 38 dBm Tape and Reel Information This device is available in Tape and Reel. Order CXG1028ATN-T2 Reel Quantity: 1000 pieces/reel Reel Dimensions: 254mm Plastic reel. 12mm width embossed taping.
-5-
CXG1028ATN
Sony GSM Lineup
MCU
Flash
SRAM 64K x 16
SGM2016AM-21-T7 LNA
90MHz I SAW RX Q AD Speech Codec DSP PLL2
IT362/IT402 IT363/IT403 IT413 PLL1
CXA3021R TX
I Q DA
CXG1037FN GSM1800/1900 RX SPDT Antenna Switches CXG1028ATN GSM 900/1800/1900 CXG1006N GSM 1800/1900 HP ANT CAR ANT TX CXG1017N GSM 900/1800/1900 CXG1045N GSM 900/1800/1900 Sony IC
-6-
CXG1028ATN
Package Outline
Unit: mm
10PIN TSSOP(PLASTIC)
1.2MAX 2.8 0.1 10 6 0.1
2.2 0.1
+ 0.15 0.1 - 0.05
3.2 0.2
1
5 0.5 0.25 0 to 10
+ 0.08 0.22 - 0.07
0.1
M
(0.2) + 0.08 0.22 - 0.07
DETAIL A
NOTE: Dimension "" does not include mold protrusion.
PACKAGE STRUCTURE
PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE TSSOP-10P-L01 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER PLATING COPPER ALLOY 0.02g
-7-
(0.1) + 0.025 0.12 - 0.015
A
0.45 0.15

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