Silicon Digital Attenuator
Description
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.
GND D1 GND D2 GND D3 GND D4 GND D5 GND D6
12962-001
FUNCTIONAL BLOCK DIAGRAM
24 23 22 21 20 19
D0 1
18 SERNIN
VDD 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
Figure 1.
GND
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...
Similar Datasheet
