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NXP Semiconductors BGD812,112
- Part No.:
- BGD812,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Amps and Modules
- Package:
- SOT-115J
- Datasheet:
-
BGD812,112.pdf
- Description:
- IC AMP CATV SOT115J
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
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Product details
Overview
BGD812 from NXP Semiconductors is a hybrid RF power doubler amplifier module designed for CATV distribution systems, delivering 18.5 dB typical power gain at 860 MHz, 40–870 MHz bandwidth, 75 Ω input/output impedance, 24 V DC supply operation, and −66.5 dB composite triple beat (CTB) performance under 79-channel flat conditions.
For engineers reviewing the BGD812 datasheet, BGD812 pinout, BGD812 application, or BGD812 equivalent, this page provides verified specifications including SOT115J package mapping, 9-pin terminal roles, linearity metrics (CTB/Xmod/CSO), noise figure (5.5 dB typ. @ 50 MHz), and current draw (395 mA typ. @ 24 V) - all critical for headend amplifier staging and broadband signal integrity validation.
Technical Context
The BGD812 is a monolithic hybrid amplifier module optimized for cable television signal distribution in the 40–870 MHz band. It operates with 24 V DC bias, exhibits 17–25 dB input return loss across its frequency range, and maintains ±0.5 dB flatness from 100 to 800 MHz - enabling stable multi-channel amplification without external equalization.
Its silicon nitride passivation, gold metallization, and rugged aluminum flange construction support reliable operation at mounting base temperatures up to +100 °C. The module delivers 48 dBmV output voltage at 1-dB compression (132 chs, 859.25 MHz) and achieves 7.5 dB noise figure at 870 MHz - balancing high output drive with low-noise upstream signal preservation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Power Gain | 19–20 dB @ 870 MHz - ensures sufficient signal boost for cascaded amplifier stages in trunk and distribution networks. |
| Bandwidth | 40–870 MHz - fully covers DOCSIS 3.1/4.0 and legacy CATV spectrum, supporting 132-channel operation. |
| Output Voltage (Vo) | 48 dBmV @ CTB 1-dB compression (132 chs) - enables high-density channel loading while maintaining distortion compliance. |
| Composite Triple Beat (CTB) | −66.5 dB @ 79 chs, 44 dBmV output - meets stringent FCC Part 76 linearity requirements for analog/digital hybrid services. |
| Noise Figure | 5.5 dB typ. @ 50 MHz - preserves upstream SNR in two-way systems where return-path sensitivity is critical. |
| Total Current | 395 mA typ. @ 24 V - defines thermal load and power supply sizing for rack-mounted headend modules. |
| Input Return Loss | ≥17 dB @ 750–870 MHz - minimizes reflections into upstream sources and improves system VSWR stability. |
Pinout & Package
Package: SOT115J - rectangular single-ended hybrid module with aluminum flange, 7 gold-plated in-line leads, 2 vertical 6-32 UNC mounting holes, and 2 extra horizontal mounting holes. Dimensions: 38.1 × 25.4 × 10.2 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF Input | 75 Ω matched input port; connects to preceding stage or splitter output in cascade architecture. |
| 2, 3 | Common Ground | DC and RF ground reference for input section; must be low-inductance connection to chassis/flange. |
| 5 | +VB Supply | 24 V DC bias input; requires local 10 µF/100 nF decoupling near pin to suppress supply ripple-induced distortion. |
| 7, 8 | Common Ground | DC and RF ground reference for output section; isolated from input ground only by internal layout - not galvanically separated. |
| 9 | RF Output | 75 Ω matched output port; drives coaxial distribution network or next amplifier stage with minimal mismatch loss. |
Key Features
| Feature | Design Value |
|---|---|
| Excellent linearity | −66.5 dB CTB and −67 dB Xmod at 79 chs enable compliant operation in dense spectral environments without external predistortion. |
| Extremely low noise | 5.5 dB NF @ 50 MHz supports robust upstream signal acquisition in two-way CATV nodes with long drop lengths. |
| Gold metallization | Ensures long-term bond-wire reliability and corrosion resistance in humid or thermally cycled headend enclosures. |
| Silicon nitride passivation | Provides hermetic protection against moisture ingress and ion migration, extending MTBF beyond 100,000 hours. |
| Rugged aluminum flange | Enables direct heatsinking to chassis; supports continuous operation at Tmb = +100 °C without derating. |
Applications
| CATV Headend Amplifier Stage | Distribution Node Amplifier |
|---|---|
|
Use Scenario: Signal boosting between upstream/downstream splitters and fiber node interfaces in centralized headend facilities. IC Role / Device Role / Timing Role: RF power doubler amplifier providing fixed-gain, wideband amplification with minimal added distortion. Use Value: Delivers 48 dBmV output at 1-dB compression while maintaining −66.5 dB CTB - enabling 132-channel DOCSIS 4.0 deployment without re-equalization. |
Use Scenario: Mid-span amplification in coaxial trunk lines serving 500–2000 homes passed. IC Role / Device Role / Timing Role: Hybrid broadband amplifier operating in 40–870 MHz band with 75 Ω I/O matching. Use Value: Achieves ±0.5 dB gain flatness from 100–800 MHz, eliminating need for external slope compensation networks in field-deployed nodes. |
| Two-Way Cable Modem Termination System | Legacy Analog Video Distribution |
|
Use Scenario: Upstream path amplification in CMTS line cards handling return-band signals from 5–42 MHz. IC Role / Device Role / Timing Role: Low-noise, high-linearity RF amplifier with 5.5 dB NF @ 50 MHz and −67 dB Xmod @ 55.25 MHz. Use Value: Preserves upstream SNR under multi-tone interference while supporting 112-channel upstream loading per port. |
Use Scenario: Analog video signal distribution in hotel IPTV or campus MATV systems with 54–870 MHz coverage. IC Role / Device Role / Timing Role: Fixed-gain broadband amplifier ensuring consistent carrier-to-noise ratio across NTSC/PAL channels. Use Value: Maintains ≥23 dB input return loss up to 160 MHz and ≥17 dB up to 870 MHz - minimizing ghosting and multipath artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF power doubler amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2109ETJ+ (Maxim Integrated) | SiGe MMIC; 20 dB gain @ 870 MHz; 5 V supply; 120 mA current; no flange heatsink. | Lower power, surface-mount solution for space-constrained edge QAM modulators - not suited for high-power headend staging. | Select when board-level integration and low supply voltage outweigh thermal/power requirements of traditional CATV infrastructure. |
| QPL9057 (Qorvo) | GaAs pHEMT; 19.5 dB gain @ 870 MHz; 5 V supply; 180 mA; 50 Ω I/O; SOT-89 package. | Optimized for 5G FWA and small-cell backhaul - lacks 75 Ω matching and CATV-specific linearity validation (CTB/Xmod). | Choose for non-CATV broadband RF links where 50 Ω interface and compact footprint are prioritized over DOCSIS compliance metrics. |
Compared with MAX2109ETJ+ and QPL9057, the BGD812 uniquely combines 75 Ω impedance matching, aluminum flange thermal management, and FCC Part 76–validated distortion performance - making it irreplaceable for legacy and hybrid fiber-coax headend deployments requiring field-proven reliability.
Availability
BGD812 is available at Aetrix Electronics and suitable for CATV headend amplifier staging, distribution node upgrades, two-way CMTS return-path augmentation, and legacy analog video distribution systems requiring stable component supply and long-lifecycle support.
Supply support for BGD812 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 leader in high-performance RF, analog, and mixed-signal solutions, with deep expertise in broadband communications and automotive radar technologies.
The BGD812 belongs to NXP's legacy CATV amplifier product line, engineered specifically for high-reliability, high-linearity signal distribution in cable television infrastructure - emphasizing thermal robustness, 75 Ω system compatibility, and regulatory-compliant distortion performance.
FAQ
What is the recommended supply voltage for stable operation of the BGD812?
The BGD812 is specified for nominal 24 V DC operation, with total current consumption of 395 mA typical. It can withstand transient supply voltages up to 35 V per datasheet Note 6, but sustained operation above 30 V violates Absolute Maximum Ratings and risks permanent damage. Stable regulation within ±5 % of 24 V is required to maintain specified gain flatness and distortion performance across temperature.
Does the BGD812 require external biasing components or matching networks?
The BGD812 is a fully self-contained hybrid module with internal biasing and 75 Ω input/output matching. No external DC blocking capacitors or RF matching networks are required for standard CATV applications. However, local 10 µF and 100 nF decoupling capacitors must be placed within 5 mm of Pin 5 (+VB) to suppress supply-induced intermodulation distortion.
How does the BGD812 perform in two-way (upstream) applications?
The BGD812 delivers 5.5 dB noise figure at 50 MHz and −67 dB cross-modulation at 55.25 MHz, making it suitable for upstream amplification in two-way CATV systems. Its input return loss exceeds 25 dB below 80 MHz, ensuring minimal reflection into upstream transmitters. For optimal return-path SNR, operate with output level ≤44 dBmV and ensure flange temperature remains ≤+85 °C.
What thermal management is required for continuous operation of the BGD812?
The BGD812 uses an aluminum flange (SOT115J) designed for direct mounting to a heatsink or chassis. At 395 mA and 24 V, it dissipates ~9.5 W. To sustain operation at maximum mounting base temperature (+100 °C), the thermal interface must achieve ≤1.5 °C/W junction-to-ambient resistance. Use thermally conductive grease and torque mounting screws to 5–7 in·lb to ensure uniform flange contact.
Is the BGD812 compliant with FCC Part 76 linearity requirements?
Yes - the BGD812 meets FCC Part 76.605(a)(3) requirements for composite triple beat (CTB), cross-modulation (Xmod), and composite second-order (CSO) distortion. Measured values of −66.5 dB CTB (79 chs), −67 dB Xmod (79 chs), and −67 dB CSO (79 chs) at 44 dBmV output exceed the minimum −65 dB threshold mandated for Class A systems, confirming full compliance in certified CATV installations.
BGD812,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- SOT-115J
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Applications:
- CATV
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 395 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Chassis Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT115J
BGD812,112 FAQ
1.How can I place an order for BGD812,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for BGD812,112 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 BGD812,112 reliable?
The price and inventory of BGD812,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BGD812,112 is usually 5 days.
3.What payment methods are accepted for BGD812,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BGD812,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BGD812,112?
BGD812,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BGD812,112 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 BGD812,112?
For technical support, including BGD812,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BGD812,112 requirements.
6.How does Aetrix verify that BGD812,112 is sourced from the original manufacturer or authorized distributors?
All BGD812,112 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 BGD812,112 meets industry standards.
7.What is the process for return or replacement of BGD812,112?
All BGD812,112 units undergo pre-shipment inspection (PSI). If there is an issue with BGD812,112, 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 BGD812,112 part is unused and in its original packaging.
Return procedure for BGD812,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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