hylinuxer
Newbie level 6
phemt switch macom
hi,all.i used a power switch at the front of 13.56M transmitter,but the effect is very bad,the switch module is macom masw-007813 and some voltage control circuit,datasheet claims operating range is DC-3G,i previously used it very well in 915M rfid reader,but now despair.in theory,input power to ANT pin, when V1 voltage is high level and other control pin is low,the relevant RF port can passed nearly same power,other three ports just only have a little power because of isolation.but in my 13.56MHZ RFID reader circuit,when a 34dBm power input one of ports,the relevant port power just have almost 31dBm,other isolated port also have enough power reached 30dBm,isolation is very bad! the switch max input power is 38dBm and the frequency range is DC-3G,why can not ?i doubt that if the switch can be used in this frequency band.can antbody help me ?thans you!
GaAs SP4T High Power Switch
DC - 3 GHz
MASW-007813
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
RoHS
Compliant
Features
• Low Voltage Operation: 2.5 V
• Low Harmonics: < -66 dBc at +34 dBm & 1 GHz
• Low Insertion Loss: 0.7 dB at 1 GHz
• High Isolation: 25 dB at 2 GHz
• 0.5 micron GaAs PHEMT Process
• Low Profile, Lead-Free 3 mm PQFN Package
• 100% Matte Tin Plating
• Halogen-Free “Green” Mold Compound
• RoHS* Compliant and 260°C Re-flow Compatible
Description
M/A-COM’s MASW-007813 is a GaAs PHEMT
MMIC single pole four throw (SP4T) high power
switch in a low cost, low profile, lead-free 3 mm
PQFN 16-lead package. The MASW-007813 is
ideally suited for applications where high power, low
control voltage, low insertion loss, high
isolation, small size and low cost are required.
Typical applications are for GSM and DCS handset
systems that connect separate transmit and receive
functions to a common antenna, as well as CDMA
handset and other related applications. The
MASW-007813 can be used in all systems
operating up to 3 GHz requiring high power at low
control voltage.
The MASW-007813 is fabricated using a 0.5 micron
gate length GaAs PHEMT process. The process
features full passivation for performance and
reliability.
Ordering Information 1
Part Number Package
MASW-007813-TR3000 3000 piece reel
Functional Schematic
Pin No. Pin Name Description
1 RF1 RF Port 1
2 GND RF Ground
3 GND RF Ground
4 RF2 RF Port 2
5 V2 Control 2
6 V1 Control 1
7 V4 Control 4
8 V3 Control 3
9 RF3 RF Port 3
10 GND RF Ground
11 GND RF Ground
12 RF4 RF Port 4
13 GND RF Ground
14 ANT Antenna Port
15 GND RF Ground
16 GND RF Ground
17 GND (paddle) 2 RF Ground
Pin Configuration
2. The exposed pad centered on the package bottom must be
connected to RF and DC ground.
1. Reference Application Note M513 for reel size information.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
Electrical Specifications: TA = 25°C, VC = 0 V / 2.75 V, PIN = 34 dBm, Z0 = 50 Ohm
Insertion Loss 4
DC - 1 GHz 0.7db
1 - 2 GHz 0.8db
2 - 3 GHz 1.0db
Return Loss DC - 3 GHz dB — 20 —
P0.1dB 1 GHz dBm — 38 —
IP2 Two Tone, +26 dBm/Tone, 5 MHz spacing, > 50 MHz dBm — 96 —
IP3 Two Tone, +26 dBm/Tone, 5 MHz spacing, > 50 MHz dBm — 58 —
2nd Harmonic 1 GHz, Pin = +34 dBm dBc — -76 -68
3. For positive voltage control, external DC blocking capacitors are required on all RF ports.
4. Insertion loss can be optimized by varying the DC blocking capacitor value, e.g. 1000 pF for 100 MHz - 1 GHz, 39 pF for 0.5 GHz - 3 GHz.
V1 V2 V3 V4 ANT1 2 3 4
1 0 0 0 On Off Off Off
0 1 0 0 Off On Off Off
0 0 1 0 Off Off On Off
0 0 0 1 Off Off Off On
Truth Table 5,6
5. Differential voltage, V (state 1) - V (state 0), must be +2.5 V
minimum and must not exceed 8.5 V.
6. 0 = -8.5 V to 0 V, 1 = -6 V to 8.5 V
Parameter Absolute Maximum
Max Input Power
(0.5 - 3 GHz, 2.75 V Control) +38 dBm
Operating Voltage +8.5 volts
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
hi,all.i used a power switch at the front of 13.56M transmitter,but the effect is very bad,the switch module is macom masw-007813 and some voltage control circuit,datasheet claims operating range is DC-3G,i previously used it very well in 915M rfid reader,but now despair.in theory,input power to ANT pin, when V1 voltage is high level and other control pin is low,the relevant RF port can passed nearly same power,other three ports just only have a little power because of isolation.but in my 13.56MHZ RFID reader circuit,when a 34dBm power input one of ports,the relevant port power just have almost 31dBm,other isolated port also have enough power reached 30dBm,isolation is very bad! the switch max input power is 38dBm and the frequency range is DC-3G,why can not ?i doubt that if the switch can be used in this frequency band.can antbody help me ?thans you!
GaAs SP4T High Power Switch
DC - 3 GHz
MASW-007813
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
RoHS
Compliant
Features
• Low Voltage Operation: 2.5 V
• Low Harmonics: < -66 dBc at +34 dBm & 1 GHz
• Low Insertion Loss: 0.7 dB at 1 GHz
• High Isolation: 25 dB at 2 GHz
• 0.5 micron GaAs PHEMT Process
• Low Profile, Lead-Free 3 mm PQFN Package
• 100% Matte Tin Plating
• Halogen-Free “Green” Mold Compound
• RoHS* Compliant and 260°C Re-flow Compatible
Description
M/A-COM’s MASW-007813 is a GaAs PHEMT
MMIC single pole four throw (SP4T) high power
switch in a low cost, low profile, lead-free 3 mm
PQFN 16-lead package. The MASW-007813 is
ideally suited for applications where high power, low
control voltage, low insertion loss, high
isolation, small size and low cost are required.
Typical applications are for GSM and DCS handset
systems that connect separate transmit and receive
functions to a common antenna, as well as CDMA
handset and other related applications. The
MASW-007813 can be used in all systems
operating up to 3 GHz requiring high power at low
control voltage.
The MASW-007813 is fabricated using a 0.5 micron
gate length GaAs PHEMT process. The process
features full passivation for performance and
reliability.
Ordering Information 1
Part Number Package
MASW-007813-TR3000 3000 piece reel
Functional Schematic
Pin No. Pin Name Description
1 RF1 RF Port 1
2 GND RF Ground
3 GND RF Ground
4 RF2 RF Port 2
5 V2 Control 2
6 V1 Control 1
7 V4 Control 4
8 V3 Control 3
9 RF3 RF Port 3
10 GND RF Ground
11 GND RF Ground
12 RF4 RF Port 4
13 GND RF Ground
14 ANT Antenna Port
15 GND RF Ground
16 GND RF Ground
17 GND (paddle) 2 RF Ground
Pin Configuration
2. The exposed pad centered on the package bottom must be
connected to RF and DC ground.
1. Reference Application Note M513 for reel size information.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
Electrical Specifications: TA = 25°C, VC = 0 V / 2.75 V, PIN = 34 dBm, Z0 = 50 Ohm
Insertion Loss 4
DC - 1 GHz 0.7db
1 - 2 GHz 0.8db
2 - 3 GHz 1.0db
Return Loss DC - 3 GHz dB — 20 —
P0.1dB 1 GHz dBm — 38 —
IP2 Two Tone, +26 dBm/Tone, 5 MHz spacing, > 50 MHz dBm — 96 —
IP3 Two Tone, +26 dBm/Tone, 5 MHz spacing, > 50 MHz dBm — 58 —
2nd Harmonic 1 GHz, Pin = +34 dBm dBc — -76 -68
3. For positive voltage control, external DC blocking capacitors are required on all RF ports.
4. Insertion loss can be optimized by varying the DC blocking capacitor value, e.g. 1000 pF for 100 MHz - 1 GHz, 39 pF for 0.5 GHz - 3 GHz.
V1 V2 V3 V4 ANT1 2 3 4
1 0 0 0 On Off Off Off
0 1 0 0 Off On Off Off
0 0 1 0 Off Off On Off
0 0 0 1 Off Off Off On
Truth Table 5,6
5. Differential voltage, V (state 1) - V (state 0), must be +2.5 V
minimum and must not exceed 8.5 V.
6. 0 = -8.5 V to 0 V, 1 = -6 V to 8.5 V
Parameter Absolute Maximum
Max Input Power
(0.5 - 3 GHz, 2.75 V Control) +38 dBm
Operating Voltage +8.5 volts
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C