MBC13720NT1 - SiGe LNA, 400-2500 MHz, w/ Bypass Switch | NXP
部品番号: MBC13720NT1 ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.72 | $17.20 |
| 100 | $1.45 | $145.00 |
| 500 | $1.22 | $610.00 |
| 1,000 | $1.05 | $1,050.00 |
MBC13720NT1 概要
An LNA (Low-Noise Amplifier) is the first active gain stage in a wireless receiver chain, placed immediately after the antenna and band-select filter. Its primary role is to amplify the weak incoming RF signal while adding as little noise as possible, because the LNA's noise figure directly sets the receiver's overall sensitivity figure (NF + cascaded loss). LNAs are a sub-category of RF front-end modules, which sit between the antenna and the baseband/modem. The MBC13720NT1 belongs to the silicon-germanium (SiGe) LNA family, which competes with GaAs pHEMT LNAs by offering integrated CMOS-compatible logic control on a single die.
Key features include an integrated bypass switch that allows the LNA to be bypassed in high-signal conditions to improve dynamic range, two selectable current settings for trade-off between linearity and power consumption, and a logic-controlled standby mode drawing negligible current for battery-powered duty-cycled applications. The external input and output matching topology provides maximum design flexibility, allowing the same IC to be optimized for different frequency bands and antenna impedances with simple LC networks.
Typical applications include 400 MHz to 2.4 GHz multi-standard wireless receivers, cellular and ISM-band front-end modules, GPS LNA stages, and Bluetooth/Wi-Fi receive chains. The wide frequency range and bypass function also make it attractive for software-defined radio and cognitive-radio platforms that must tolerate strong blocker signals. A typical bias configuration is 2.7 V with a logic-low on the bypass and standby pins to enter active low-noise mode.
When designing with this part, pay close attention to the external matching network component selection - the noise figure, gain, and IP3 are all heavily influenced by the chosen source and load matching. Place the matching components as close to the RF pins as possible, use a continuous ground plane under the package, and keep the supply decoupling capacitor within 2 mm of the VCC pin. Avoid routing digital control lines (BYPASS, STBY, ISEL) across RF traces to prevent unwanted coupling.
ドロップイン代替品: MBC13720NT1 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
MBC13720NT1BLK
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MBC13720NT2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MBC13720NT1 最大定格＆電気的特性
| Part Number | MBC13720NT1 |
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| 機能 | Low-Noise Amplifier (LNA) with Bypass Switch |
| Technology | SiGe:C RF BiCMOS |
| Frequency Range | 400 MHz to 2.5 GHz |
| Noise Figure | 1.45 dB (typical, per datasheet) |
| Output IP3 (OIP3) | +10 dBm (typical, high-linearity mode) |
| 電源電圧 | 2.5 V to 3.0 V |
| 電源電流 | Two selectable settings (low/high); standby mode available |
| Standby Mode Current | Negligible (<10 uA typical, per datasheet) |
| Bypass Switch | Integrated, logic-controlled |
| Input/Output Matching | External (for design flexibility) |
| パッケージ | SOT-363 (6-pin) |
| 実装タイプ | Surface Mount |
| Tape and Reel Qty | 3000 (per NXP NT1 suffix) |
MBC13720NT1 ピン構成
| ピン 1 | RFin — RF input (external match) |
| ピン 2 | GND — Ground |
| ピン 3 | STBY — Standby control (logic-high = standby) |
| ピン 4 | ISEL — Current-select (logic selects high/low current) |
| ピン 5 | VCC — Supply voltage input (2.5 V to 3.0 V) |
| ピン 6 | RFout — RF output (external match) |
主な用途
MBC13720NT1 の用途: 6 件s: Multi-Standard Wireless Receiver Front-End, Cellular and ISM-Band Receiver Modules, GPS LNA Front-End Stage, Bluetooth and Wi-Fi Receive Chains, Software-Defined and Cognitive Radio Receivers, Industrial IoT Wireless Sensor Nodes.
Multi-Standard Wireless Receiver Front-End
The MBC13720NT1's 400 MHz to 2.5 GHz coverage and 1.45 dB noise figure make it well suited as the first LNA stage in multi-standard wireless receivers. Placed between the antenna/band-select filter and the mixer, the LNA must add minimum NF while preserving linearity for both weak signals and strong interferers. With +10 dBm output IP3 in high-linearity mode and an integrated bypass switch that lets strong signals bypass the LNA entirely, the MBC13720NT1 covers cellular, ISM, and Wi-Fi reception without an external GaAs pHEMT LNA in cost-sensitive designs.
おすすめ
Cellular and ISM-Band Receiver Modules
For cellular and ISM-band receivers the MBC13720NT1 provides the wideband LNA gain needed at 400-2500 MHz with selectable current settings that trade quiescent current for linearity. At 2.7 V supply and high-current mode the part delivers +10 dBm OIP3 per NXP datasheet, sufficient for handset and IoT cellular module front-ends that must tolerate blocking signals from co-located transmitters. The external matching network allows the same silicon to be optimized across GSM, W-CDMA, LTE, and 2.4 GHz ISM, reducing BOM count in multi-mode designs.
おすすめ
GPS LNA Front-End Stage
At 1575 MHz the MBC13720NT1 functions as a thin GPS LNA stage, with 1.45 dB NF and ~13 dB gain typical that helps preserve the link budget for high-sensitivity GPS receivers. Placed between the GPS ceramic patch antenna and the GPS receiver IC's internal mixer, the external matching network is tuned for 1.575 GHz to optimize noise figure. The bypass switch can re-route the antenna signal directly to the receiver IC for in-band jamming scenarios, while the standby mode saves current when GPS is duty-cycled.
おすすめ
Bluetooth and Wi-Fi Receive Chains
For 2.4 GHz Bluetooth and Wi-Fi receive chains the MBC13720NT1 provides low-noise pre-amplification ahead of the transceiver IC. At 2.4 GHz the part maintains less than 2 dB NF with adequate gain to overcome losses in the RF trace and BPF, improving receiver sensitivity by several dB. The external input match can include a band-select filter to reject out-of-band blockers before the LNA, while the bypass mode is enabled when RSSI indicates a nearby transmitter to prevent saturation in AP-mode receive.
おすすめ
Software-Defined and Cognitive Radio Receivers
Software-defined radio and cognitive-radio receivers benefit from the MBC13720NT1's combination of wide-band coverage, integrated bypass, and standby control because the frontend must adapt to varying signal environments. The bypass function lets the signal chain survive strong in-band blockers (such as a nearby cell tower) without AGC settling time, while the standby control enables rapid duty-cycling for spectrum-scanning algorithms. Designers typically run one ISEL setting for receive-scan and switch to high-linearity mode when a signal of interest is detected.
おすすめ
Industrial IoT Wireless Sensor Nodes
Industrial IoT wireless sensor nodes benefit from the MBC13720NT1's low 2.7 V operation and dual current-select feature when running from a battery or energy-harvesting source. A typical sensor node keeps the LNA in standby most of the time, then pulses it active for a short receive window; the standby current drawn by the part is negligible per NXP datasheet, while the high-current mode is selected only when a known transmitter is ready to be received. The SOT-363 footprint keeps the BOM footprint small enough for coin-cell powered sensors.
おすすめ
エンジニアリング参考データ: MBC13720NT1 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MBC13720NT1BLK | MBC13720NT2 |
|---|---|---|---|
| Package | SOT-363 | SOT-363 - same | SOT-363 - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Frequency Range | 400 MHz to 2.5 GHz | 400 MHz to 2.5 GHz | 400 MHz to 2.5 GHz |
| Noise Figure | 1.45 dB typical | 1.45 dB typical | 1.45 dB typical |
| Supply Voltage | 2.5 V to 3.0 V | 2.5 V to 3.0 V | 2.5 V to 3.0 V |
| Packaging Type | 7-inch Tape & Reel (3000 pcs) | Bulk | 10-inch Tape & Reel (larger qty) |
| Bypass Switch | Integrated, logic-controlled | Integrated, logic-controlled | Integrated, logic-controlled |
| Standby Mode | Yes (logic pin) | Yes (logic pin) | Yes (logic pin) |
主な差別化要因
- Integrated CMOS-compatible control logic on SiGe:C die （vs Infineon BGA427)
- Dual-current operating mode for power/linearity trade-off （vs Skyworks SKY65405)
- External matching for maximum design flexibility （vs BGA427 (internal match))
設計ノート
The MBC13720NT1 RF performance is highly dependent on PCB layout. Place the input and output matching LC components as close as possible to pins 1 and 6 respectively, keep the GND via array immediately beneath the center thermal/exposed pad, and use a continuous ground plane on layer 2. Route the digital control lines (STBY, ISEL, and bypass) away from the RF traces to minimize coupling - even a few nH of common-impedance coupling can degrade NF by 0.5 dB or more.
Decouple the VCC pin (pin 5) with a multi-cap network - 10 nF + 1 nF + 100 pF ceramic capacitors in parallel, placed within 2 mm of the pin - to suppress RF leakage on the supply. The bypass switch transition can draw brief current spikes; a 10 uF bulk capacitor at the regulator output is recommended. Avoid routing the digital supply and the VCC pin through the same trace, as the LNA is highly sensitive to VCC noise (per NXP datasheet this part has a finite PSRR at RF frequencies).
Do not operate the MBC13720NT1 above 3.0 V - the internal SiGe:C transistors are designed for 2.5-3.0 V only and over-voltage will damage the device. Ensure the STBY pin is pulled to ground (logic low) for active operation, and verify the ISEL state on each power-up sequence. When tuning the external matching network, sweep component values with a vector network analyzer rather than relying on simulation alone - the SOT-363 package parasitic adds ~0.5 nH which must be absorbed into the match.
コンプライアンス情報
Compliance status is marked unknown because the verified web data does not explicitly state RoHS, REACH, lead-free, or halogen-free status. The datasheet PDF (NXP document, 24 pages) does not surface these compliance fields in the available web snippets. AEC-Q100 is not_applicable because the part is not an automotive-qualified LNA.
