Document
MAAD-007081
Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Rev. V4
Features
Attenuation: 0.5 dB Steps to 15.5 dB Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance Test Boards are Available Tape and Reel Packaging Available Lead-Free CSP-1 Package 100% Matte Tin Plating over Copper Halogen-Free “Green” Mold Compound 260°C Reflow Compatible RoHS* Compliant Version of AT90-0283
Functional Schematic
Description
M/A-COM's MAAD-007081-000100 is a GaAs FET 5 -bit digital attenuator with integral TTL driver. Step size is 0.5 dB providing a 15.5 dB total attenuation range. This device is in an PQFN plastic surface mount package. MAAD-007081-000100 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required.
Ordering Information
Part Number MAAD-007081-000100 MAAD-007081-0001TR MAAD-007081-0001TB
Package Bulk Packaging 1000 piece reel Sample Test Board
Note: Reference Application Note M513 for reel size information.
Pin Configuration1
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Function GND C8 C4 C2 C1 C0.5 GND NC NC NC2 GND RF1 GND NC NC NC
Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Function NC NC NC NC NC NC NC NC NC GND RF2 GND NC2 -Vee NC +Vcc
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 1
1. The exposed pad centered on the package bottom must be connected to RF and DC ground. (For PQFN Packages)
2. Pins 10 & 29 must be isolated
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.
For further information and support please visit: https://www.macom.com/support
MAAD-007081
Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Rev. V4
Electrical Specifications: TA = 25°C, Z0 = 50
Parameter Insertion Loss Attenuation Accuracy
VSWR Switching Speed 1 dB Compression
Input IP3
Test Conditions
—
Individual Bits 0.5-1-4-8 dB Individual Bit 2 dB
Any Combination of Bits 1 to 15.5 dB
Full Range
50% Cntl to 90%/10% RF 10% to 90% or 90% to 10%
— —
Two-tone inputs up to +5 dBm
Vcc Vee
VIL VIH
lin (Input Leakage Current)
— —
LOW-level input voltage HIGH-level input voltage
Vin = VCC or GND
Frequency
DC - 3.5 GHz
DC - 3.5 GHz DC - 3.5 GHz DC - 3.5 GHz
DC - 3.5 GHz
— —
50 MHz 0.5 - 3.5 GHz
50 MHz 0.5-3.5 GHz
— —
— —
—
Units
dB
dB dB dB
Ratio
ns ns
dBm dBm
dB dB
V V
V V
uA
Min
—
— — —
—
— —
— —
— —
4.75 -8.0
0.0 2.0
-1.0
Icc (Quiescent Supply Current)
Vcntrl = VCC or GND
ΔIcc
VCC = Max, Vcntrl = VCC - 2.1 V
(Additional Supply Current
Per TTL Input Pin)
IEE VEE min to max, Vin = VIL or VIH
Thermal Resistance θjc
—
— —
— —
uA — mA —
mA °C/W
-1.0 —
Typ
2.8
— — —
Max
3.2
±(.3 +5% of atten setting) ±(.4 +10% of atten setting) ±(.5 +7% of atten setting)
1.6:1
75 20
+21 +29
+35 +48
5.0 -5.0
— —
—
1.8:1
150 50
— —
— —
5.25 -4.75
0.8 5.0
1.0
250 400
— 1.0
-0.2 — 15 —
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.
For further information and support please visit: https://www.macom.com/support
MAAD-007081
Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-3.5 GHz
Absolute Maximum Ratings 3,4
Parameter
Max. Input Power 0.05 GHz 0.5 - 3.5 GHz
VCC
VEE VCC - VEE
Vin5
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm +34 dBm -0.5V ≤ VCC ≤ +7.0V -8.5V ≤ VEE ≤ +0.5V -0.5V ≤ VCC - VEE ≤ 14.5V -0.5V ≤ Vin ≤ VCC + 0.5V -40ºC to +85ºC -65ºC to +125ºC
3. Exceeding any one or combination of these limits may cause permanent damage to this device.
4. M/A-COM does not recommend sustained operation near
these survivability limits. 5. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
Rev. V4
Recommended PCB Configuration 6
6. Application Note C2083 is available on line at www.macom.com
Handling Procedures
Please observe the following precautions to avoid damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices.
Moisture Sensitivity
The MSL rating for this part is defined as Level 2 per IPC/JEDEC J-STD-020. Parts shall be stored and/or baked as required for MSL Level 2 parts.
Truth Table (Digital Attenuator)
C8 C4 C2 C1 0 0 00 0 0 00 0 0 01 0 0 10 0 1 00 1 0 00 1 1 11
0 = TTL Low; 1 = TTL High
C0.5 0 1 0 0 0 0 1
Attenuation Loss, Reference
0.5 dB 1.0 dB 2.0 dB 4.0 dB 8.0 dB 15.5 dB
3
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without not.