HMC291 4 dB LSB 2-Bit Digital Attenuator SMT, 0.7 - 4.0 GHz
The HMC291(E) is a general purpose broadband 2-bit positive control GaAs IC digital attenuator in a 6 lead SOT26 surface mount plastic package. Covering 0.7 to 4 GHz, the insertion loss is typically less than 0.7 to 1.3 dB. The attenuator bit values are 4 (LSB) and 8 dB for a total attenuation of 12 dB. Accuracy is excellent at ±0.2 dB typical with an IIP3 of up to +54 dBm. Two bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required.
技术特性
- RoHS Compliant Product
- 4 dB LSB Steps to 12 dB
- Single Positive Control Per BIT, 0/+3V
- ±0.2 dB Typical Bit Error
- Miniature SOT 26 Package: 9 mm²
- Included in the
HMC-DK004 Designer’s Kit
订购信息 Ordering Information
应用领域 APPLICATION
- Cellular
- PCS, ISM, MMDS
- WLL Handset & Base Station
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技术指标
| Freq. (GHz) |
Function |
Loss (dB) |
Atten. Range (dB) |
IIP3 (dBm) |
Control Input (Vdc) |
Package |
| 0.7 - 4.0 |
2-Bit Digital |
0.9 |
4 to 12 |
54 |
0/ +3V |
SOT26 |
功能框图 Functional Block Diagram
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