MAAD-007079 Datasheet, PDF (2/6 Pages) M/A-COM Technology Solutions, Inc. – Contains Internal DC to DC Converter

MAAD-007079
Digital Attenuator
30.0 dB, 4-Bit, TTL Driver, DC-2.5 GHz
Rev. V4
Electrical Specifications: T_A = 25°C, Z₀ = 50
Parameter
Test Conditions
Frequency Units Min Typ
Max
Insertion Loss
Attenuation Accuracy
VSWR
Switching Speed
1 dB Compression
Input IP₃
—
Individual Bits or Combination of Bits
Full Range
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
—
—
Two-tone inputs up to +5 dBm
Vcc
V_IL
V_IH
lin (Input Leakage Current)
Icc⁴
Turn-on Current⁵
ΔIcc
(Additional Supply Current
Per TTL Input Pin)
Switching Noise
Thermal Resistance θjc
—
LOW-level input voltage
HIGH-level input voltage
Vin = V_CC or GND
Vcc min to max,
Logic “0” or “1”
For guaranteed start-up
V_CC = Max, Vcntrl = V_CC - 2.1 V
Generated from
DC-DC Converter with
recommended capacitors
—
DC - 2.5 GHz
DC - 2.5 GHz
DC - 2.5 GHz
—
—
50 MHz
0.5 - 2.5 GHz
50 MHz
0.5 - 2.5 GHz
—
—
—
—
—
—
—
3.5 MHz
—
dB
dB
Ratio
nS
nS
dBm
dBm
dB
dB
V
V
V
uA
mA
mA
mA
—
2.7
3.0
—
— ±(.3 +5% of atten setting)
—
1.5:1
1.8:1
—
75
150
—
20
50
—
+21
—
—
+29
—
—
+35
—
—
+48
—
4.75 5.0
5.25
0.0
—
0.8
2.0
—
5.0
-1.0
—
1.0
—
6
10
—
—
125
—
—
1.0
dBm
—
-93
—
°C/W
—
15
—
4. During turn-on, the device requires an initial start up current
(Icc) specified as “Turn-on Current”. Once operational, Icc will
drop to the specified levels.
5. The DC-DC converter is guaranteed to start in 100 µs as long
as the power supplies have the maximum turn-on current
available for start-up.
Recommended PCB Configuration⁹
Absolute Maximum Ratings ^6,7
Parameter
Max. Input Power
0.05 GHz
0.5 - 2.5 GHz
V_CC
Vin⁸
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm
+34 dBm
-0.5V ≤ V_CC ≤ +6.0V
-0.5V ≤ Vin ≤ V_CC + 0.5V
-40ºC to +85ºC
-65ºC to +125ºC
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. M/A-COM does not recommend sustained operation near
these survivability limits.
8. Standard CMOS TTL interface, latch-up will occur if logic sig-
2
nal is applied prior to power supply.
9. Application Note C2083 is available on line at www.macom.com
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.
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