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NXP Semiconductors BGY785A,112
- Part No.:
- BGY785A,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Amps and Modules
- Package:
- SOT-115J
- Datasheet:
-
BGY785A,112.pdf
- Description:
- IC AMP CATV SOT115J
- Quantity:
- Payment:
- Shipping:
Inventory:2,394
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Product details
Overview
BGY785A,112 from NXP Semiconductors is a hybrid high dynamic range cascode amplifier module in SOT115J package, operating at 24 V DC supply with 18.5 dB typical gain at 750 MHz, −54.5 dB typical CTB distortion, and 4.5 dB noise figure at 50 MHz - deployed as a push-pull RF amplifier in CATV distribution amplifiers.
For engineers reviewing the BGY785A,112 datasheet, BGY785A,112 pinout, BGY785A,112 application, or BGY785A,112 equivalent, key selection criteria include its 40–750 MHz bandwidth, 225–240 mA DC current draw at 24 V, input/output return loss ≥14 dB across band, and ruggedized construction for cable infrastructure headend and node amplification.
Technical Context
The BGY785A,112 implements a push-pull cascode architecture using silicon nitride passivation and gold metallization to sustain high linearity under multi-carrier CATV conditions. It delivers flat gain (±0.3 dB) and low slope (<2 dB cable-equivalent) across 40–750 MHz with 75 Ω input/output impedance matching.
Its design supports operation at VB = 24 V with transient tolerance up to 30 V, and thermal management via aluminum flange mounting (Tmb ≤ +100 °C). Return losses exceed 14 dB from 40–750 MHz at both ports, enabling stable cascade in broadband distribution networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 40 MHz to 750 MHz - fully specified performance across full CATV spectrum including DOCSIS 3.1 upstream/downstream bands |
| Power Gain | 18.5 dB typ. at 750 MHz - enables single-stage amplification without cascaded stages in node/hub designs |
| Noise Figure | 4.5 dB typ. at 50 MHz - preserves signal integrity in front-end amplification of weak downstream signals |
| CTB Distortion | −54.5 dB typ. (110 channels, 44 dBmV output) - meets stringent multi-carrier linearity requirements for HFC networks |
| Total Current | 225–240 mA at 24 V - defines thermal load and power supply sizing for 24 V-powered amplifier modules |
| Input/Output Return Loss | ≥14 dB from 40–750 MHz - ensures stable impedance match and minimizes reflections in 75 Ω coaxial systems |
| Supply Transient Tolerance | Up to 30 V - protects against voltage spikes in field-deployed CATV power supplies |
Pinout & Package
SOT115J package: rectangular single-ended metal flange with 2 vertical and 2 horizontal 6-32 UNC mounting holes, 7 gold-plated in-line leads, aluminum base for thermal conduction and mechanical rigidity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF Input | 75 Ω matched input port; connects to preceding stage or splitter output in cascade topology |
| 2, 3, 7, 8 | Common (Ground) | Four dedicated ground terminals for low-inductance RF grounding and thermal path to flange |
| 5 | +VB Supply | 24 V DC power input; accepts transients up to 30 V; requires local bulk and RF decoupling |
| 9 | RF Output | 75 Ω matched output port; drives coaxial trunk or distribution leg with minimal VSWR impact |
Key Features
| Feature | Design Value |
|---|---|
| Hybrid Push-Pull Cascode Topology | Delivers high gain and linearity while canceling even-order distortion critical for multi-channel CATV |
| Silicon Nitride Passivation | Provides moisture and contamination resistance for long-term reliability in humid outdoor enclosures |
| Gold Metallization | Ensures corrosion-resistant interconnects and stable contact resistance over 20+ year field life |
| Rugged Aluminum Flange | Enables direct heatsinking to chassis or heat spreader; supports Tmb up to +100 °C in sealed nodes |
| ESD-Sensitive Handling | Requires grounded assembly and transport per IEC 61340-5-1 to prevent gate oxide damage during integration |
Applications
| CATV Distribution Amplifier | HFC Node Amplifier |
|---|---|
|
Use Scenario: Amplifying downstream RF signals in fiber-to-coax nodes serving 500–2000 homes. IC Role / Device Role / Timing Role: Primary RF gain block in the forward path, operating between optical receiver and coaxial output driver. Use Value: Delivers 18.5 dB gain with −54.5 dB CTB across 40–750 MHz, enabling clean signal delivery without re-equalization. |
Use Scenario: Boosting signal levels in active splitters located at street cabinets feeding multiple coaxial legs. IC Role / Device Role / Timing Role: High-linearity push-pull amplifier ensuring minimal distortion accumulation across cascaded nodes. Use Value: Maintains >14 dB return loss and ±0.3 dB flatness, reducing reflection-induced ingress and tilt errors. |
| Headend Line Extender | DOCSIS 3.1 Upstream Booster |
|
Use Scenario: Compensating for insertion loss in RF combiners and filters inside cable headend facilities. IC Role / Device Role / Timing Role: Wideband gain block placed after channel combiners to restore signal level before transmission. Use Value: 240 mA max current draw and 30 V transient tolerance support continuous operation in noisy power environments. |
Use Scenario: Enhancing upstream return-path signals (5–85 MHz) from remote PHY devices before digitization. IC Role / Device Role / Timing Role: Low-noise, high-dynamic-range amplifier preserving SNR in reverse-path analog sections. Use Value: 4.5 dB noise figure at 50 MHz and −61 dB CSO at 550 MHz ensure compliance with DOCSIS 3.1 upstream specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MACOM MAAM-011130 | 50–1000 MHz bandwidth; 20 dB gain; GaAs pHEMT process; 5 V supply; 110 mA current | Designed for lower-voltage, lower-power distributed amplification; not rated for 24 V CATV infrastructure | Consider for compact, low-power RF modules where 24 V operation and flange-mounting are unnecessary |
| Qorvo QPL9547 | DC–6000 MHz; 22 dB gain; 5 V supply; 70 mA; SOT-363 package; no flange or high-current capability | Targeted at wireless infrastructure and small-cell front ends, not CATV linearity or thermal robustness | Use only in non-CATV broadband applications requiring ultra-wideband coverage and minimal footprint |
Compared with BGY785A,112, MAAM-011130 offers wider bandwidth but lacks 24 V ruggedness and flange thermal mass, while QPL9547 provides GHz-range coverage but cannot meet CATV CTB/CSO requirements or dissipate equivalent power in headend deployments.
Availability
BGY785A,112 is available at Aetrix Electronics and suitable for CATV distribution amplifiers, HFC node amplifiers, headend line extenders, and DOCSIS 3.1 upstream boosters requiring stable component supply, long-lifecycle assurance, and traceable sourcing for broadcast infrastructure programs.
Supply support for BGY785A,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and communications markets.
The BGY785A,112 belongs to NXP's legacy CATV amplifier portfolio, engineered specifically for high-reliability, high-linearity RF amplification in cable television infrastructure equipment operating from 40 MHz to 750 MHz.
FAQ
What is the maximum supply voltage the BGY785A,112 can withstand?
The BGY785A,112 operates nominally at 24 V DC but is rated to withstand supply transients up to 30 V per Absolute Maximum Ratings (IEC 60134). This transient tolerance allows safe operation in CATV power supplies subject to line surges or regulator overshoot, provided average voltage remains at 24 V and thermal limits are observed.
Does the BGY785A,112 require external biasing components?
No, the BGY785A,112 is a fully self-biased hybrid module. It integrates internal bias networks and requires only DC blocking capacitors (input/output), RF chokes on the +VB line, and local decoupling (bulk + ceramic) at Pin 5. No external resistors or potentiometers are needed for quiescent current setting.
What is the thermal mounting requirement for the BGY785A,112?
The BGY785A,112 must be mounted directly to a thermally conductive surface (e.g., aluminum chassis or heatsink) using the two vertical 6-32 UNC mounting holes in its SOT115J flange. Mounting base temperature must remain ≤ +100 °C; thermal interface material with <0.5 °C/W resistance is recommended for sustained 240 mA operation.
Is the BGY785A,112 suitable for DOCSIS 4.0 applications?
The BGY785A,112 is characterized up to 750 MHz and optimized for DOCSIS 3.1 downstream and upstream bands. While it operates within the 5–204 MHz upstream and 108–750 MHz downstream ranges of DOCSIS 4.0, it is not validated for extended spectrum (e.g., 1.2 GHz full-duplex) or new modulation schemes beyond its published CTB/CSO/flatness specs.
How many ground pins does the BGY785A,112 have, and why are they important?
The BGY785A,112 has four dedicated ground terminals (Pins 2, 3, 7, and 8) to minimize ground inductance and ensure stable RF return paths. These enable low-impedance grounding across the full 40–750 MHz band, critical for maintaining input/output return loss >14 dB and preventing oscillation in high-gain cascode configurations.
BGY785A,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- SOT-115J
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Applications:
- CATV
- Output Type:
- Push-Pull
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 225 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Chassis Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT115J
BGY785A,112 FAQ
1.How can I place an order for BGY785A,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for BGY785A,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BGY785A,112 reliable?
The price and inventory of BGY785A,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BGY785A,112 is usually 5 days.
3.What payment methods are accepted for BGY785A,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BGY785A,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BGY785A,112?
BGY785A,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BGY785A,112 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BGY785A,112?
For technical support, including BGY785A,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BGY785A,112 requirements.
6.How does Aetrix verify that BGY785A,112 is sourced from the original manufacturer or authorized distributors?
All BGY785A,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BGY785A,112 meets industry standards.
7.What is the process for return or replacement of BGY785A,112?
All BGY785A,112 units undergo pre-shipment inspection (PSI). If there is an issue with BGY785A,112, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BGY785A,112 part is unused and in its original packaging.
Return procedure for BGY785A,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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