AT-266
器件描述：Digital Attenuator, 1 Bit, 10 dB Step DC - 2.0 GHz
器件厂商：MACOM [Tyco Electronics]
厂商主页：http://www.macom.com
文件大小：66.26KB，共2页
Sponsor by e络盟器件资料摘要：
Digital Attenuator, 1 Bit, 10 dB Step, DC - 2.0 GHz AT-266
M/A-COM Division of AMP Incorporated G51 North America: Tel. (800) 366-2266, Fax (800) 618-8883 G51 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
G51 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
Digital Attenuator, 1 Bit, 10 dB Step
DC - 2.0 GHz
AT-266
Features
• Single 10 dB Step
• Low Loss 0.3dB Typ. @ 900 MHz
• Low Cost Plastic SOT25 Package
Description
M/A-COM’s AT-266 is a 1 bit, 10 dB step GaAs MMIC Digital
Attenuator in a low cost SOT-25 surface mount plastic package.
The AT-266 is ideally suited for use where high accuracy, very
low power consumption and low intermodulation products are
required. Typical applications include radio, wireless LANs,
GPS equipment and other gain/level control circuits.
The AT-266 is a GaAs MMIC using a mature 1 micron process.
The process features full chip passivation for increased perfor-
mance and reliability.
SOT-25 Plastic Package
Pin 1
.114 ± .008
2,9 ± 0,2
.075 ± .008
1,90 ± 0,2
.063 ± .004
1,6 ± 0,1
.110 ± .008
2,80 ± 0,2
+ .004
- .007
+ 0,1
- 0,18
.031
0,80
+ .004
- .002
+ 0,1
- 0,05
.016
0,40
.002 ± .002
0,05 ± 0,05
+ .004
- .002
+ 0,1
- 0,05
.006
0,15
+ .008
- .004
+ 0,2
- 0,1
.043
1,10
.008 MIN
0,20 MIN
Truth Table
MODE (Control) V1 V2 Atten.
Postive
1
0 ± 0.2V
+3 to +8V
+3 to +8V
0 ± 0.2V
10 dB
IL
Postive / Negative
1,2
-V
C
± 0.2 V
+ V
C
+V
C
-V
C
± 0.2V
10 dB
IL
Negative
3
0 ± 0.2V
-3V to -8V
-3V to -8V
0 ± 0.2V
IL
10 dB
1. External DC blocking capactors are required as noted
1
2. | -V
C
| + V
C
≤ 8 V.
3. If negative control is used, DC blocking capacitors are not
required on RF Ports.
Pin Configuration
PIN No. Function Description
1RF1
1
RF In/Out
2GND
1
RF Ground
3RF2
1
RF In/Out
4 V1 Control Voltage
5 V2 Control Voltage
Electrical Specifications T
A
= 25°C
1
Parameter Test Conditions Units Min. Typ. Max.
Insertion Loss 0 - 1 GHz dB 0.3 0.45
Insertion Loss 1 - 2 GHz dB 0.5 0.7
Attenuation 0 - 1 GHz dB 10 ±0.4
1 - 2 GHz dB 10 ±0.5
VSWR 0 - 2 GHz 1.4:1 1.5:1
IP
3
2 Tone @ 0 dBm, 5 MHz spacing dBm 42 50
P
1dB
1 GHz dBm 23 28
Trise, Tfall 10% to 90% RF, 90% to 10% RF ns 5 20
Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF ns 10 25
Transients In Band mV 6 10
1. Series Capacitors on PINs1, 3 and 5, Shunt Capacitor on PIN 2
are required for Postive Control. 39pF capacitors used for pos-
tive control performance curves.
1. All measurements at 1.0 GHz, -3 Volts control unless otherwise specified.
M/A-COM Division of AMP Incorporated G51 North America: Tel. (800) 366-2266, Fax (800) 618-8883 G51 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
G51 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
Digital Attenuator, 1 Bit, 10 dB Step
DC - 2.0 GHz
AT-266
Features
• Single 10 dB Step
• Low Loss 0.3dB Typ. @ 900 MHz
• Low Cost Plastic SOT25 Package
Description
M/A-COM’s AT-266 is a 1 bit, 10 dB step GaAs MMIC Digital
Attenuator in a low cost SOT-25 surface mount plastic package.
The AT-266 is ideally suited for use where high accuracy, very
low power consumption and low intermodulation products are
required. Typical applications include radio, wireless LANs,
GPS equipment and other gain/level control circuits.
The AT-266 is a GaAs MMIC using a mature 1 micron process.
The process features full chip passivation for increased perfor-
mance and reliability.
SOT-25 Plastic Package
Pin 1
.114 ± .008
2,9 ± 0,2
.075 ± .008
1,90 ± 0,2
.063 ± .004
1,6 ± 0,1
.110 ± .008
2,80 ± 0,2
+ .004
- .007
+ 0,1
- 0,18
.031
0,80
+ .004
- .002
+ 0,1
- 0,05
.016
0,40
.002 ± .002
0,05 ± 0,05
+ .004
- .002
+ 0,1
- 0,05
.006
0,15
+ .008
- .004
+ 0,2
- 0,1
.043
1,10
.008 MIN
0,20 MIN
Truth Table
MODE (Control) V1 V2 Atten.
Postive
1
0 ± 0.2V
+3 to +8V
+3 to +8V
0 ± 0.2V
10 dB
IL
Postive / Negative
1,2
-V
C
± 0.2 V
+ V
C
+V
C
-V
C
± 0.2V
10 dB
IL
Negative
3
0 ± 0.2V
-3V to -8V
-3V to -8V
0 ± 0.2V
IL
10 dB
1. External DC blocking capactors are required as noted
1
2. | -V
C
| + V
C
≤ 8 V.
3. If negative control is used, DC blocking capacitors are not
required on RF Ports.
Pin Configuration
PIN No. Function Description
1RF1
1
RF In/Out
2GND
1
RF Ground
3RF2
1
RF In/Out
4 V1 Control Voltage
5 V2 Control Voltage
Electrical Specifications T
A
= 25°C
1
Parameter Test Conditions Units Min. Typ. Max.
Insertion Loss 0 - 1 GHz dB 0.3 0.45
Insertion Loss 1 - 2 GHz dB 0.5 0.7
Attenuation 0 - 1 GHz dB 10 ±0.4
1 - 2 GHz dB 10 ±0.5
VSWR 0 - 2 GHz 1.4:1 1.5:1
IP
3
2 Tone @ 0 dBm, 5 MHz spacing dBm 42 50
P
1dB
1 GHz dBm 23 28
Trise, Tfall 10% to 90% RF, 90% to 10% RF ns 5 20
Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF ns 10 25
Transients In Band mV 6 10
1. Series Capacitors on PINs1, 3 and 5, Shunt Capacitor on PIN 2
are required for Postive Control. 39pF capacitors used for pos-
tive control performance curves.
1. All measurements at 1.0 GHz, -3 Volts control unless otherwise specified.