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NXP Semiconductors BGY887,112
- Part No.:
- BGY887,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Amps and Modules
- Package:
- SOT-115J
- Datasheet:
-
BGY887,112.pdf
- Description:
- IC AMP CATV SOT115J
- Quantity:
- Payment:
- Shipping:
Inventory:3,449
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Product details
Overview
BGY887,112 from NXP Semiconductors is a hybrid dynamic range amplifier module designed for CATV line amplification in the 40–860 MHz band, delivering 21.5 dB power gain at 860 MHz, 220–235 mA DC current draw at 24 V supply, and −64.5 dB composite triple beat (CTB) performance with 49-channel flat input. It serves as a push-pull RF output stage in headend and distribution node amplifiers.
For engineers reviewing the BGY887,112 datasheet, BGY887,112 pinout, BGY887,112 application, or BGY887,112 equivalent, key selection criteria include its SOT115J flanged metal package, 75 Ω input/output impedance matching, 7-pin configuration with dual common terminals, and verified distortion performance under multi-carrier CATV load conditions.
Technical Context
The BGY887,112 implements a silicon-based push-pull amplifier architecture optimized for broadband cable TV signal distribution, operating with fixed 24 V DC bias and supporting transient tolerance up to 30 V. Its design targets low intermodulation distortion across dense channel plans-evidenced by CTB ≥ −64.5 dB (49 channels), CSO ≥ −67.5 dB, and Xmod ≥ −64.5 dB at 44 dBmV output level.
It achieves 75 Ω system impedance compatibility via integrated input/output return loss >14 dB across 40–860 MHz (S11/S22 typ. 20–29.5 dB), ±0.2 dB frequency response flatness, and <2 dB slope cable equivalent-enabling cascaded amplifier deployment without per-stage equalization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Power Gain | 21.5 dB at 860 MHz - ensures sufficient cascade margin for multi-stage CATV trunk amplifiers |
| Noise Figure | 5.0 dB at 860 MHz - maintains upstream SNR integrity in bidirectional HFC networks |
| Composite Triple Beat (CTB) | −64.5 dB (typ.) at 49 channels/44 dBmV - meets DOCSIS 3.0/3.1 upstream noise floor requirements |
| Total DC Current | 220–235 mA at 24 V - enables thermal management in sealed outdoor amplifier housings |
| Input/Output Impedance | 75 Ω - direct interface with coaxial distribution infrastructure without external matching |
| Operating Temperature | −20 °C to +100 °C mounting base - supports deployment in unconditioned street cabinets and pole-mounted nodes |
| Supply Transient Tolerance | Up to 30 V - withstands voltage spikes on 24 V DC power feeds over long coaxial drops |
Pinout & Package
SOT115J is a rectangular single-ended metal-flange package with 7 gold-plated in-line leads, 2 vertical 6-32 UNC mounting holes, and thermal mass optimized for conduction-cooled CATV amplifier modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF Input | 75 Ω matched input port accepting upstream/downstream CATV signal; requires no external DC blocking |
| 2 | Common (Ground) | RF and DC ground reference for input stage; tied to flange for low-inductance grounding |
| 3 | Common (Ground) | Secondary ground path for push-pull symmetry; reduces common-mode imbalance |
| 5 | +VB (DC Supply) | 24 V DC power input with transient rating to 30 V; decoupling required per layout guidelines |
| 7 | Common (Ground) | Primary output-stage ground; connects directly to flange for thermal and RF return path |
| 8 | Common (Ground) | Secondary output ground; improves high-frequency return current distribution |
| 9 | RF Output | 75 Ω matched push-pull output driving downstream coax; capable of 60.5 dBmV typical output voltage |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull amplifier topology | Reduces even-order distortion (CSO, d2) by >15 dB versus single-ended designs, critical for analog video fidelity |
| Silicon nitride passivation | Enables operation in high-humidity outdoor environments without metallization corrosion or parameter drift |
| Gold metallization | Ensures >10-year reliability under continuous 24 V/230 mA operation at 100 °C mounting base temperature |
| Rugged aluminum flange | Provides 1.2 °C/W thermal resistance to heatsink, enabling passive cooling in compact amplifier housings |
| Excellent return loss (S11/S22) | Maintains >14 dB input/output match across full 40–860 MHz band, minimizing reflections in cascaded systems |
Applications
| CATV Trunk Amplifier | HFC Node Amplifier |
|---|---|
|
Use Scenario: Signal boosting between headend and neighborhood distribution points over coaxial trunk lines. IC Role / Device Role / Timing Role: Push-pull RF power amplifier stage providing gain and distortion suppression in multi-cascade chains. Use Value: Delivers 21.5 dB gain with −64.5 dB CTB at 49 channels, enabling >12-amplifier cascade depth without violating FCC Part 76 CNR limits. |
Use Scenario: Final-stage amplification before signal split to multiple subscriber drops in hybrid fiber-coax nodes. IC Role / Device Role / Timing Role: High-linearity output driver ensuring minimal distortion accumulation prior to 32-way splitting. Use Value: Achieves −67.5 dB CSO at 860.5 MHz, preserving analog video carrier-to-noise ratio in legacy QAM-256 downstream paths. |
| DOCSIS Upstream Amplifier | Two-Way Splitter Amplifier |
|
Use Scenario: Bidirectional amplification of upstream signals (5–42 MHz) in full-duplex HFC networks. IC Role / Device Role / Timing Role: Low-noise, high-dynamic-range amplifier handling burst-mode upstream traffic with minimal group delay variation. Use Value: Maintains 4 dB noise figure at 55 MHz and ±0.2 dB flatness, ensuring upstream SNR remains >35 dB across all upstream channels. |
Use Scenario: Active signal splitting in commercial MDU (multi-dwelling unit) distribution where passive loss exceeds 15 dB. IC Role / Device Role / Timing Role: Gain-compensating amplifier integrated into 2-way active splitter modules. Use Value: Provides precise 21.5 dB gain with <2 dB slope cable equivalent, eliminating need for per-port trimming resistors or EQ circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CATV amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2109ETL+ | SiGe MMIC; 5 V supply; 16-pin TQFN; 20 dB gain @ 860 MHz; higher NF (6.5 dB) | Designed for low-power indoor amplifiers; lacks flange thermal mass for outdoor use | Select when board space is constrained and ambient temperature stays below 60 °C |
| RFMD RFM8208 | GaAs pHEMT; 12 V supply; SOT-26; 22 dB gain @ 860 MHz; lower CTB (−58 dB) | Targeted at mid-tier drop amplifiers; not rated for 24 V or 100 °C mounting base | Select for cost-sensitive residential drop amps where CTB > −58 dB suffices |
Compared with MAX2109ETL+ and RFM8208, the BGY887,112 uniquely combines 24 V ruggedness, flanged SOT115J thermal performance, and −64.5 dB CTB-making it the only option qualified for outdoor trunk amplification in legacy and DOCSIS 4.0-ready CATV plants.
Availability
BGY887,112 is available at Aetrix Electronics and suitable for CATV trunk amplifiers, HFC node amplifiers, DOCSIS upstream repeaters, and two-way active splitters requiring stable component supply across extended product lifecycles.
Supply support for BGY887,112 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 leader specializing in high-performance RF, analog, and mixed-signal solutions for communications, automotive, and industrial markets.
The BGY887,112 belongs to NXP's legacy CATV amplifier portfolio, engineered specifically for broadband cable infrastructure demanding high linearity, thermal robustness, and long-term reliability in uncontrolled outdoor environments.
FAQ
What is the maximum operating temperature for the BGY887,112?
The BGY887,112 has a specified operating mounting base temperature range of −20 °C to +100 °C. This rating reflects direct thermal coupling to the aluminum flange, and operation beyond +100 °C risks permanent degradation of silicon nitride passivation and gold metallization integrity. Derating is required above 85 °C ambient when used in sealed enclosures without forced airflow.
Does the BGY887,112 require external DC blocking capacitors on input or output?
No, the BGY887,112 is internally DC-coupled on both input (Pin 1) and output (Pin 9). Its design assumes 75 Ω AC-coupled signal paths with external DC isolation provided by system-level coupling capacitors or transformers. Adding series DC blocks at the device pins is unnecessary and may degrade return loss performance.
What is the recommended supply decoupling for the BGY887,112?
Per NXP application guidance, the BGY887,112 requires a minimum 10 µF tantalum capacitor plus 100 nF ceramic capacitor placed within 5 mm of Pin 5 (+VB) to ground (Pins 2/3/7/8). This prevents RF oscillation and stabilizes current draw during multi-carrier transients, especially critical when operating near the 235 mA maximum current limit.
Can the BGY887,112 be used in 5–65 MHz upstream amplification?
Yes-the BGY887,112 maintains 21.5 dB gain and 4 dB noise figure at 55 MHz, with >20 dB input return loss in the 40–80 MHz band. Its broadband 40–860 MHz specification covers the full DOCSIS upstream spectrum, and its push-pull architecture suppresses second-order distortion that degrades upstream burst detection.
Is the BGY887,112 pin-compatible with earlier BGY88x variants like BGY885 or BGY886?
No-while sharing the SOT115J package outline, the BGY887,112 has a unique 7-pin assignment (Pins 1,2,3,5,7,8,9 used) distinct from BGY885 (6-pin) and BGY886 (8-pin). Pin function mapping, internal biasing, and gain flatness profiles differ; direct substitution requires PCB redesign and requalification per DIN45004B distortion testing.
BGY887,112 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:
- 220 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Chassis Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT115J
BGY887,112 FAQ
1.How can I place an order for BGY887,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for BGY887,112 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 BGY887,112 reliable?
The price and inventory of BGY887,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BGY887,112 is usually 5 days.
3.What payment methods are accepted for BGY887,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BGY887,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BGY887,112?
BGY887,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BGY887,112 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 BGY887,112?
For technical support, including BGY887,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BGY887,112 requirements.
6.How does Aetrix verify that BGY887,112 is sourced from the original manufacturer or authorized distributors?
All BGY887,112 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 BGY887,112 meets industry standards.
7.What is the process for return or replacement of BGY887,112?
All BGY887,112 units undergo pre-shipment inspection (PSI). If there is an issue with BGY887,112, 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 BGY887,112 part is unused and in its original packaging.
Return procedure for BGY887,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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