HMC1119 Datasheet, PDF (1/16 Pages) Analog Devices – Microwave radios and very small aperture terminals

Data Sheet
0.25 dB LSB, 7-Bit, Silicon Digital
Attenuator, 0.1 GHz to 6.0 GHz
HMC1119
FEATURES
Attenuation range: 0.25 dB LSB steps to 31.75 dB
Low insertion loss:
1.1 dB at 1.0 GHz
1.3 dB at 2.0 GHz
Typical step error: less than ±0.1 dB
Excellent attenuation accuracy: less than ±0.2 dB
Low phase shift error: 6° phase shift at 1.0 GHz
Safe state transitions
High linearity
1 dB compression (P1dB): 31 dBm typical
Input third-order intercept (IP3): 54 dBm typical
RF settling time (0.05 dB final RF output): 250 ns
Single supply operation: 3.3 V to 5.0 V
ESD rating: Class 2 (2 kV human body model (HBM))
24-lead, 4 mm × 4 mm LFCSP package: 16 mm²
APPLICATIONS
Cellular infrastructure
Microwave radios and very small aperture terminals (VSATs)
Test equipment and sensors
IF and RF designs
GENERAL DESCRIPTION
The HMC1119 is a broadband, highly accurate, 7-bit digital
attenuator, operating from 0.1 GHz to 6.0 GHz with 31.5 dB
attenuation control range in 0.25 dB steps.
The HMC1119 is implemented in a silicon process, offering
very fast settling time, low power consumption, and high ESD
robustness. The device features safe state transitions and is
optimized for excellent step accuracy and high linearity over
frequency and temperature range. The RF input and output are
internally matched to 50 Ω and do not require any external
matching components. The design is bidirectional; therefore,
the RF input and output are interchangeable.
FUNCTIONAL BLOCK DIAGRAM
24 23 22 21 20 19
D0 1
18 SERNIN
V_DD 2
P/S 3
SERIAL/
PARALLEL
CONTROL
17 CLK
16 LE
GND 4
ATTNIN 5
GND 6
7
7-BIT
DIGITAL
ATTENUATOR
15 GND
14 ATTNOUT
13 GND
8 9 10 11 12
PACKAGE
BASE
GND
Figure 1.
The HMC1119 has an on-chip regulator that can support a wide
supply operating range from 3.3 V to 5.0 V with no performance
change in electrical characteristics. The HMC1119 incorporates a
driver that supports serial (3-wire) and parallel controls of the
attenuator.
The HMC1119 comes in a RoHS-compliant, compact, 4 mm ×
4 mm LFCSP package.
A fully populated evaluation board is available.
Rev. 0
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