AT90-1233 Datasheet, PDF (1/4 Pages) Tyco Electronics – Digital Attenuator, 30 dB, 4-Bit, TTL Driver, DC - 2.5 GHz

Digital Attenuator, 30 dB, 4-Bit,
TTL Driver, DC - 2.5 GHz
V 1.00
Features
n Attenuation: 2 dB Steps to 30 dB
n Single Positive Supply
n Contains Internal DC to DC Converter
n Small Footprint, JEDEC Package
n Integral TTL Driver
n 50 Ohm Impedance
n Test Boards Available
n Tape and Reel Packaging Available
Description
M/A-COM’s AT90-1233 is a GaAs FET 4-Bit digital
attenuator with integral driver. Step size is 2 dB providing
a 30 dB attenuation range. This device is in an FQFP-N
plastic surface mount package. The AT90-1233 is suited
for single supply applications where accuracy, fast speed,
low power consumption and low costs are required.
CSP-1
Electrical Specifications T_A = +25°C
Parameter
Test Conditions
Frequency Units Min Typical
Max
Insertion Loss
—
DC - 2.5 GHz dB
—
Attenuation
Individual Bits or Combination DC - 2.5 GHz dB
—
Accuracy
of Bits
VSWR
Full Range
DC - 2.5 GHz Ratio
—
2.7
3.0
— ±(.3 +5% of atten setting)
1.5:1
1.8:1
Switching Speed
50% Cntl to 90%/10% RF
—
nS
—
75
150
10% to 90% or 90% to 10%
—
nS
—
20
50
1 dB Compression
—
50 MHz
dBm
—
+21
—
—
0.5 - 2.5 GHz dBm
—
+29
—
Input IP₃
Two-tone inputs up to +5 dBm
50 MHz
dB
—
+35
—
0.5 - 2.5 GHz dB
—
+48
—
+Vcc
—
—
V
4.75
5.0
5.25
Logic “0”
Sink Current is 20 µA max.
—
V
0.0
—
0.8
Logic “1”
Source Current is 20 µA max.
—
V
2.0
—
5.0
Icc
Vcc min to max,
—
mA
—
6
10
Logic “0” or “1”