TQC9305
700 - 3600 MHz Serial Controlled Digital Variable Gain Amplifier w/ Shutdown Function, 5-Bit, 1 dB Steps, Packaged
End of Life announced September 8, 2023 (PCN 23-0126).
Last Time Buy: September 20, 2024
Recommended replacement for new designs: RFDA4005
Contact your local sales representative for assistance.
Note: Any orders for Last Time Buy materials from Qorvo are considered non-cancellable, non-returnable.
Key Features
- 700 – 3600 MHz broadband performance
- Digitally-controlled variable gain amplifier
- Shut-down pin for TDD compatibility
- 13 dB gain @ 1.9 GHz
- 3.1 dB noise figure @ max gain setting
- +40 dBm output IP3
- 5-bit, 31 dB gain range
- Internally matched
- 5V operation
- 5x5 mm 32-pin plastic package
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Qorvo's TQC9305 is a digitally controlled variable gain amplifier (DVGA) with a broadband frequency range of 700 to 3600 MHz. The DVGA features high linearity and low noise while providing digital variable gain with a 31 dB of range in 1 dB steps through a serial mode control interface. At 1.9 GHz, the DVGA typically provides 13 dB gain, +40 dBm OIP3, +23 dBm P1dB, and 3.1 dB noise figure. This combination of performance parameters makes the DVGA ideal for receiver applications requiring gain control with high IIP3 and low noise figure. In additional, the DVGA integrates a shut-down biasing capability to allow for easy operation for TDD applications.
The TQC9305 integrates a high performance digital step attenuator followed by a high linearity, broadband gain block. Both stages are internally matched to 50 ohms and do not require any external matching components. The TQC9305 is packaged in a RoHS-compliant, compact 5x5 mm surface-mount leadless package.
Typical Applications
- Base Station Transceivers
- Defense Communications
- Repeaters / DAS
- TDD
Product Categories
Application Categories
| Frequency Min(MHz) | 700 |
| Frequency Max(MHz) | 3,600 |
| Attenuation Range(dB) | 31 |
| Gain @ 0 dB Atten(dB) | 13 |
| OP1dB(dBm) | 23 |
| OIP3(dBm) | 40 |
| Bits | 5 |
| NF(dB) | 3.1 |
| Voltage(V) | 5 |
| Current(mA) | 130 |
| Package Type | QFN, 32-pin |
| Package(mm) | 5.0 x 5.0 x 0.82 |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
| ECCN | 5A991.B |