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Qorvo SPF5043Z
- Part Number:
SPF5043Z
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- RoHs:
Non-RoHS Compliant - Datasheet:
SPF5043Z_Datesheet - Description:
RF Amplifier IC Cellular, ISM, PCS 50MHz ~ 4GHz SOT-343
- In stock 25
SPF5043Z – Complete Datasheet Summary
1. Basic Device Information
- Part Number: SPF5043Z
- Manufacturer: Qorvo
- Device Type: GaAs pHEMT MMIC Low-Noise Amplifier (LNA)
- Frequency Range: 50 MHz to 4000 MHz
- Package: SOT‑343 (4‑pin, miniature SOT‑343 surface‑mount)
- Supply Voltage: 3 V to 5 V single supply
- Quiescent Current: 46 mA (typ at 5 V); 25 mA (typ at 3 V)
- Internal Matching: 50 Ω input/output matched
- ESD Rating: HBM Class 1A
- Moisture Sensitivity: MSL 1 (unlimited floor life)
- RoHS: Compliant (lead‑free, halogen‑free, antimony‑free)
- Datasheet Revision: June 12, 2018
2. Key Features
- Ultra‑low noise figure: 0.8 dB typ @ 900 MHz
- High gain: 18.2 dB @ 900 MHz; 12.9 dB @ 1960 MHz
- High linearity: OIP3 up to 38.5 dBm
- High output P1dB: 22.7 dBm @ 1900 MHz
- Integrated active bias for stable current over temperature
- Broadband 50 Ω internal matching
- Single‑supply operation (3–5 V)
- Compact SOT‑343 package
- Excellent reverse isolation
- ESD and robust handling
3. Electrical Specifications (TA = 25°C, VD = 5 V, IDQ = 46 mA, 50 Ω)
Key Performance
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Frequency Range | — | 50 | — | 4000 | MHz |
| Small‑Signal Gain | @ 900 MHz | 16.7 | 18.2 | 19.7 | dB |
| @ 1960 MHz | 11.4 | 12.9 | 14.4 | dB | |
| Noise Figure | @ 900 MHz | — | 0.8 | 1.0 | dB |
| @ 1900 MHz | — | 0.8 | — | dB | |
| Output P1dB | @ 900 MHz | 17.4 | 22.6 | — | dBm |
| @ 1900 MHz | — | 22.7 | — | dBm | |
| OIP3 | @ 900 MHz | 30.0 | 33.0 | — | dBm |
| @ 1900 MHz | — | 35.0 | — | dBm | |
| Reverse Isolation | @ 900 MHz | — | 23.5 | — | dB |
| Input Return Loss | @ 900 MHz | 13.0 | 16.0 | — | dB |
| Output Return Loss | @ 900 MHz | 13.0 | 17.5 | — | dB |
| Drain Current | — | — | 46 | 54 | mA |
Absolute Maximum Ratings
| Parameter | Rating | Unit |
|---|---|---|
| Drain Voltage (VD) | +5.5 | V |
| Drain Current (ID) | 100 | mA |
| CW Input Power | +25 | dBm |
| Power Dissipation | 330 | mW |
| Storage Temperature | −65 to +150 | °C |
| Operating Temperature | −40 to +85 | °C |
| Junction Temperature | 150 | °C |
4. Pin Configuration (SOT‑343, Top View)
| Pin No. | Name | Function |
|---|---|---|
| 1 | RF Out | RF output; drain bias input |
| 2 | GND | DC/RF ground |
| 3 | RF In | RF input (internally DC‑coupled) |
| 4 | GND | DC/RF ground |
5. Typical Performance Summary
At VD = 5 V, ID = 46 mA
- Gain: 23.5 dB @ 100 MHz → 7.0 dB @ 3.8 GHz
- NF: 0.61 dB @ 400 MHz → 1.49 dB @ 3.8 GHz
- OIP3: 30.5 dBm @ 100 MHz → 38.5 dBm @ 3.5 GHz
- Output P1dB: ~22.5–23.1 dBm across band
At VD = 3 V, ID = 25 mA
- Gain: 22.6 dB @ 100 MHz → 6.7 dB @ 3.8 GHz
- NF: 0.60 dB @ 100 MHz → 1.48 dB @ 3.8 GHz
- OIP3: 26.5 dBm @ 100 MHz → 33.5 dBm @ 3.5 GHz
- Output P1dB: ~19.3–20.3 dBm across band
6. Functional Description
- GaAs pHEMT high‑gain, low‑noise device
- Active bias stabilizes quiescent current vs. voltage and temperature
- Internal matching eliminates external matching components
- Single supply simplifies biasing (VD applied at pin 1 RF Out)
- DC‑coupled input requires external DC blocking capacitor
- Output requires DC blocking cap
7. Application Circuit Requirements
- Input DC blocking capacitor: 100 pF (C3)
- Output DC blocking capacitor: 100 pF (C1, C4)
- Drain supply decoupling: 0.1 μF (C2)
- RF choke: 100 nH (L1) for bias feeding
- Evaluation board: SPF5043ZPCK1 (50 MHz–4000 MHz)
8. Applications
- Cellular, PCS, W‑CDMA, LTE, ISM
- High‑dynamic‑range receivers
- Wideband LNA and gain blocks
- Portable and battery‑powered radios
- Test equipment frontends
9. Packaging & Ordering
- SPF5043Z: 3000 units on 7‑inch reel
- SPF5043ZSR: 100 units on 7‑inch reel
- SPF5043ZPCK1: Evaluation board + 5‑pc sample bag
10. Layout & Reliability
- SOT‑343 land pattern with solid ground plane
- Short, direct RF traces; minimize parasitics
- Backside paddle soldered to ground for thermal/electrical performance
- Lead‑free reflow compatible (max 260°C)
- ESD sensitivity: Class 1A; proper handling required
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