QPC3614
5 − 1500 MHz, 75 Ohm Digital Step Attenuator
Key Features
- 6-Bit, 31.5 dB Range, 0.5 dB Step
- Patented Circuit Architecture
- Overshoot-free Transient Switching Performance
- Frequency Range 5 MHz - 1500 MHz
- High Linearity, IIP3 65 dBm Typical at 1 GHz
- Serial and Parallel Control Interface
- Fast Switching Speed, < 500 nsec Typical
- RF Pads Have No DC Voltage; Can be DC Grounded Externally
- Option to Turn Off Negative Voltage Generator and Supply VSS Externally
- Power-up Default Setting Is Maximum Attenuation
The QPC3614 is a 75 Ohm 6-bit digital step attenuator (DSA) that features high linearity over the entire 31.5 dB gain control range in 0.5 dB steps and has a low insertion loss of 1.2 dB at 1 GHz. The QPC3614 features three modes of control: serial, latched parallel, and direct parallel programming. Patented circuit architecture provides overshoot-free transient switching performance. QPC3614 is available in a 20-pin 4.2 mm x 4.2 mm x 0.90 mm QFN package.
Typical Applications
- Optical Nodes
- Point-to-Point
- Pre-amplifier Attenuation
- Inter-stage Attenuation
- Return Attenuation
- AGC and Tilt Control
Product Categories
| Frequency Min(MHz) | 5 |
| Frequency Max(MHz) | 1,500 |
| Insertion Loss(dB) | 1.2 |
| Attenuation Range(dB) | 31.5 |
| IP0.1dB(dBm) | 30 |
| IIP3(dBm) | 65 |
| Interface | Serial & Parallel |
| Bits | 6 |
| Step Size(dB) | 0.5 |
| Voltage(V) | 5 |
| Package Type | QFN |
| Package(mm) | 4.2 x 4.2 |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
| ECCN | 5A991G |
This product appears in the following application block diagrams: