Device Overview
Designed as a RF amplifier, Qorvo SBB1089Z uses the SOT-89 package. The main engineering checks for this variant are Frequency Range (50 MHz to 850 MHz), Gain (15.5 dB), Noise Figure (4.2 dB).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Frequency Range | 50 MHz to 850 MHz | Defines the operating frequency or RF band that must cover the intended signal frequencies. |
| Gain | 15.5 dB | Sets the signal-level gain budget and must be compared at matching frequency, mode and bias conditions. |
| Noise Figure | 4.2 dB | Defines the device contribution to receiver noise and must be compared at matching frequency and bias conditions. |
| P1dB | 19.6 dBm (at 240 MHz) | Defines output compression headroom and must be compared at matching frequency and bias conditions. |
| OIP3 | 43.1 dBm (at 240 MHz) | Defines third-order linearity headroom and must be compared with matching tone, frequency and bias conditions. |
| Exact Package | SOT-89 | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
| Rf Function | RF amplifier | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| Supply Current | 98.0 mA | Defines DC power and thermal burden on the bias or supply rail. |
| Impedance | 50 Ohm | Defines RF matching compatibility with the surrounding transmission-line and matching network. |
RF Selection Notes
The frequency range is 50 MHz to 850 MHz; this defines the operating frequency or RF band that must cover the intended signal frequencies. Rf Function is RF amplifier. Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared.
Gain is 15.5 dB. Sets the signal-level gain budget and must be compared at matching frequency, mode and bias conditions. At 4.2 dB, the noise figure defines the device contribution to receiver noise and must be compared at matching frequency and bias conditions.
P1dB is 19.6 dBm. Defines output compression headroom and must be compared at matching frequency and bias conditions. Technical condition: at 240 MHz. 43.1 dBm is the stated oip3 value. Defines third-order linearity headroom and must be compared with matching tone, frequency and bias conditions. Technical condition: at 240 MHz.
The supply current is 98.0 mA; this defines DC power and thermal burden on the bias or supply rail. Impedance is 50 Ohm. Defines RF matching compatibility with the surrounding transmission-line and matching network.
For exact package, SOT-89 is the approved value. Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
Engineering Resource
For applications requiring a gain block beyond the 850 MHz upper limit of this Qorvo SBB1089Z (50–850 MHz), review SBB5089Z, which Qorvo lists for 50–6000 MHz and about 20.1 dB catalog gain versus 15.5 dB for SBB1089Z. These devices have different RF gain, current and frequency coverage; verify the bias network and performance at the required frequency before redesigning a stage.
