Digital Attenuator, 1-Bit, 15 dB, 75 Ω
DC - 1.1 GHz
Rev. V1
MAAD-010305
2
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Electrical Specifications3: TA = 25°C, VC = +2.5 Volts, Z0 = 75 Ω
Parameter Test Conditions Units Min. Typ. Max.
Insertion Loss
(Reference State) 1.1 GHz dB — 0.3 0.45
Attenuation 1.1 GHz dB 14.6 15.1 15.6
Input Return Loss DC - 1.1 GHz dB — 14 —
Input IP3
1.1 GHz
Insertion Loss State
Attenuation State
dBm —
—
46
46
—
—
P1dB
1.1 GHz
Insertion Loss State
Attenuation State
dBm —
—
20
20
—
—
CTB 157 Channels, PIN = 35 dBmV/ch. dBc — 70 —
CSO 157 Channels, PIN = 35 dBmV/ch. dBc — 66 —
Trise, Tfall 10% to 90% RF, 90% to 10% RF ns — 15 —
Ton, Toff 50% Control to 90% RF,
50% Control to 10% RF ns — 20 —
Transients In-band mV — 20 —
Control Current — µA — — 5
Output Return Loss DC - 1.1 GHz dB — 14 —
3. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3).
Absolute Maximum Ratings 4,5
Parameter Absolute Maximum
Input Power +21 dBm
Control Voltage 8 V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
4. Exceeding any one or combination of these limits may cause
permanent damage to this device.
5. M/A-COM Technology Solutions does not recommend
sustained operation near these survivability limits.
Truth Table
Mode
(Control) V1 V2 Attenuation
Positive 6 0 ± 0.2V
+2.5V to +5V
+2.5V to +5V
0 ± 0.2V
15 dB
Reference State
Negative 7 0 ± 0.2V
-2.5V to -5V
-2.5V to -5V
0 ± 0.2V
Reference State
15 dB
6. External DC blocking capacitors are required as noted.
7. If negative control is used, DC blocking capacitors are not
required on RF ports and ground.