MAAD-007079-000100 Datasheet, PDF (2/5 Pages) Tyco Electronics – Digital Attenuator 30.0 dB, 4-Bit, TTL Driver, DC-2.5 GHz

MAAD-007079-000100
Digital Attenuator
30.0 dB, 4-Bit, TTL Driver, DC-2.5 GHz
Rev. V4
Electrical Specifications: T_A = 25°C, Z₀ = 50Ω
Parameter
Test Conditions
Frequency
Insertion Loss
—
DC - 2.5 GHz
Attenuation Accuracy Individual Bits or Combination of Bits DC - 2.5 GHz
VSWR
Full Range
DC - 2.5 GHz
Switching Speed
50% Cntl to 90%/10% RF
—
10% to 90% or 90% to 10%
—
1 dB Compression
—
50 MHz
—
0.5 - 2.5 GHz
Input IP₃
Two-tone inputs up to +5 dBm
50 MHz
0.5 - 2.5 GHz
Vcc
—
—
V_IL
LOW-level input voltage
—
V_IH
HIGH-level input voltage
—
lin (Input Leakage Current)
Vin = V_CC or GND
—
Icc⁴
Vcc min to max,
—
Logic “0” or “1”
Turn-on Current⁵
For guaranteed start-up
—
ΔIcc
V_CC = Max, Vcntrl = V_CC - 2.1 V
—
(Additional Supply Current
Per TTL Input Pin)
Switching Noise
Generated from
DC-DC Converter with
recommended capacitors
3.5 MHz
Thermal Resistance θjc
—
—
Units
dB
dB
Ratio
nS
nS
dBm
dBm
dB
dB
V
V
V
uA
mA
Min
—
—
—
—
—
—
—
—
—
4.75
0.0
2.0
-1.0
—
Typ
2.7
—
1.5:1
75
20
+21
+29
+35
+48
5.0
—
—
—
6
Max
3.0
±(.3 +5% of atten setting)
1.8:1
150
50
—
—
—
—
5.25
0.8
5.0
1.0
10
mA
—
—
125
mA
—
—
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-
nal is applied prior to power supply.
9. Application Note C2083 is available on line at www.macom.com
2
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is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
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Solutions has under development. Performance is based on engineering tests. Specifications are
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changes to the product(s) or information contained herein without notice.