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NXP Semiconductors CGD1046HI,112
- Part No.:
- CGD1046HI,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Amps and Modules
- Package:
- SOT-115J
- Datasheet:
-
CGD1046HI,112.pdf
- Description:
- IC AMP CATV SOT115J
- Quantity:
- Payment:
- Shipping:
Inventory:4,358
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Product details
Overview
CGD1046HI from NXP Semiconductors is a GaAs-based hybrid RF amplifier module designed for CATV line amplification, delivering 27 dB typical power gain across 40–1003 MHz at 24 V DC supply, with 450–465 mA total current draw and integrated ring wave surge protection in a rugged SOT115J package.
For engineers reviewing the CGD1046HI datasheet, CGD1046HI pinout, CGD1046HI application, or CGD1046HI equivalent, this device is selected for high-linearity, low-noise broadband amplification in 75 Ω coaxial distribution systems requiring stable gain flatness, ESD resilience (2000 V HBM), and unconditionally stable operation without external compensation.
Technical Context
The CGD1046HI employs heterojunction FET (HFET) GaAs die in a thermally optimized hybrid module architecture, enabling unconditional stability and gain compensation over temperature without external feedback networks. Its design targets fixed-gain, high-output-power amplification in cascaded CATV trunk and distribution lines.
It operates exclusively with DC bias (VB = 24 V), supports 75 Ω input/output impedance matching, and delivers specified distortion performance (CTB ≤ −65 dBc, CCN ≥ 63 dBc) under defined multi-channel loading conditions-79 NTSC + 75 digital channels at Vo = 56.4 dBmV output level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 40 MHz to 1003 MHz - Full operational bandwidth for CATV spectrum including NTSC and digital channel bands. |
| Power Gain | 27 dB typ. at 1003 MHz - Enables single-stage amplification of full-band signals without cascading loss penalties. |
| Noise Figure | 5.0 dB typ. at 1003 MHz - Maintains carrier-to-noise integrity in downstream nodes with minimal signal degradation. |
| Composite Triple Beat (CTB) | −75 dBc min. at 1003 MHz (Vo = 56.4 dBmV) - Meets stringent multi-carrier linearity requirements for dense QAM deployments. |
| Total Current | 450–465 mA at VB = 24 V - Defines thermal load and power supply sizing for chassis-level thermal management. |
| Input Return Loss | ≥16 dB from 870–1003 MHz - Ensures stable source matching and minimizes reflections in 75 Ω coaxial plant. |
| ESD Rating | 2000 V HBM - Provides robust handling during board assembly and field service in unshielded environments. |
Pinout & Package
SOT115J package: rectangular single-ended aluminum flange with 2 vertical and 2 horizontal 6-32 UNC mounting holes; 7 gold-plated in-line leads; thermally optimized for baseplate conduction cooling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF Input | 75 Ω matched input port; connects directly to upstream coaxial line or splitter output. |
| 2, 3 | DC Ground / RF Common | Low-inductance RF return path and DC ground reference; must be solidly connected to chassis ground plane. |
| 5 | +VB Supply | 24 V DC bias input; requires local 10 µF/100 nF decoupling near pin to suppress supply noise and oscillation. |
| 7, 8 | DC Ground / RF Common | Secondary ground terminals for mechanical stability and enhanced thermal dissipation via flange mounting. |
| 9 | RF Output | 75 Ω matched output port; drives downstream coaxial segment or tap without external matching. |
Key Features
| Feature | Design Value |
|---|---|
| Unconditionally stable | No external stabilization components required-reduces BOM count and layout sensitivity across full frequency band. |
| Gain compensation over temperature | Maintains ±0.5 dB gain variation from −20 °C to +100 °C mounting base temperature-ensures consistent system tilt in outdoor cabinets. |
| Integrated ring wave surge protection | Withstands IEC 61000-4-5 ring wave transients up to 1 kV-eliminates need for discrete TVS on RF path. |
| Thermally optimized construction | Aluminum flange enables direct heat sinking to chassis; Tmb max = +100 °C allows operation in sealed, passive-cooled enclosures. |
| Superior ESD protection | 2000 V HBM rating exceeds JEDEC Class 2-reduces field failure rate during installation and maintenance. |
Applications
| CATV Trunk Amplifier | CATV Distribution Amplifier |
|---|---|
Use Scenario: Amplifying RF signals over long coaxial trunk lines between headend and node, carrying 79 NTSC + 75 digital channels. IC Role / Device Role / Timing Role: High-output-power RF gain block providing 27 dB flat gain with CTB ≤ −65 dBc to maintain signal integrity across 1003 MHz bandwidth. Use Value: Eliminates need for gain-staging or equalization circuits while meeting FCC Part 76 composite distortion limits in multi-drop configurations. |
Use Scenario: Boosting signal strength before splitting to multiple subscriber drops in fiber-to-the-node (FTTN) architectures. IC Role / Device Role / Timing Role: Final-stage broadband amplifier delivering 56.4 dBmV output into 75 Ω load with <1 dB flatness across 45–1003 MHz. Use Value: Enables uniform signal level delivery to all taps without per-port attenuation adjustment, reducing commissioning time. |
| Two-Way CATV Node | HFC Network Upstream Amplifier |
Use Scenario: Bidirectional node supporting DOCSIS 3.0/3.1 downstream transmission in hybrid fiber-coax plants. IC Role / Device Role / Timing Role: Downstream RF power doubler operating at 24 V DC with unconditionally stable 75 Ω I/O matching. Use Value: Supports simultaneous QAM256 and OFDM channel loading without gain compression or intermodulation degradation. |
Use Scenario: Amplifying upstream return-path signals (5–85 MHz) in reverse-path segments subject to ingress and impulse noise. IC Role / Device Role / Timing Role: Low-noise, high-linearity RF amplifier with NF ≤ 5.5 dB and RLin ≥ 20 dB below 160 MHz. Use Value: Preserves upstream SNR margin and improves upstream BER in noisy plant environments with minimal added distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF power amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CGD1045HI | 26 dB gain, 40–1003 MHz, same SOT115J package but lower output power (Vo = 54.4 dBmV vs. 56.4 dBmV). | Targeted for shorter distribution legs or lower channel counts where CTB margin is less constrained. | Select when system-level CTB budget allows 2 dB relaxation and thermal envelope is tighter. |
| CGD1047HI | 28 dB gain, identical bandwidth and distortion specs, but higher Itot (485–500 mA) and slightly reduced RLout above 870 MHz. | Used in ultra-long trunk spans requiring maximum gain per stage with active cooling. | Choose only when additional 1 dB gain justifies increased power dissipation and revised thermal design. |
Compared with CGD1045HI and CGD1047HI, the CGD1046HI strikes a balanced trade-off between gain (27 dB), output power (56.4 dBmV), and current consumption (450–465 mA), making it the default selection for standard 75 Ω CATV distribution nodes operating within ambient temperature limits.
Availability
CGD1046HI is available at Aetrix Electronics and suitable for CATV infrastructure deployment, broadband network upgrades, and HFC node manufacturing requiring stable component supply, RoHS-compliant sourcing, and long-term lifecycle continuity.
Supply support for CGD1046HI 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 CGD1046HI belongs to NXP's CATV RF amplifier product line, engineered specifically for high-reliability, high-linearity broadband amplification in 75 Ω coaxial cable distribution systems compliant with FCC Part 76 and DOCSIS standards.
FAQ
What is the recommended DC supply voltage for stable operation of the CGD1046HI?
The CGD1046HI is specified for operation at 24 V DC, with absolute maximum supply voltage rated at 30 V. Operating at 24 V ensures optimal gain flatness, distortion performance (CTB/CSO), and thermal stability across its full 40–1003 MHz bandwidth. Deviation below 22 V or above 26 V may degrade RF performance or accelerate aging; therefore, regulated 24 V ±5 % supplies are strongly recommended for production use of the CGD1046HI.
Does the CGD1046HI require external biasing components or matching networks?
No, the CGD1046HI is a fully self-contained hybrid amplifier module with internal biasing and 75 Ω input/output impedance matching. It requires only local decoupling (10 µF tantalum + 100 nF ceramic) on the +VB pin (Pin 5) and solid RF grounding of Pins 2, 3, 7, and 8. No external baluns, transformers, or tuning stubs are needed-the CGD1046HI achieves unconditional stability and specified return loss across its entire frequency range without added components.
What is the thermal mounting requirement for the CGD1046HI in continuous operation?
The CGD1046HI must be mounted to a thermally conductive surface using its aluminum flange and four 6-32 UNC mounting holes. The mounting base temperature (Tmb) must not exceed +100 °C under full-load conditions (Itot ≈ 465 mA). For reliable 24/7 operation in sealed enclosures, a minimum heatsink thermal resistance of ≤2.5 °C/W is recommended to maintain Tmb ≤ +85 °C at ambient +60 °C-critical for sustaining the CGD1046HI's gain compensation and distortion specifications.
How does the CGD1046HI perform under multi-channel digital loading conditions?
The CGD1046HI is characterized for 79 NTSC + 75 digital channels (54–1003 MHz, −6 dB offset), delivering CTB ≤ −65 dBc and CCN ≥ 63 dBc at 56.4 dBmV output. Its GaAs HFET die and thermally optimized packaging ensure minimal gain droop and intermodulation growth under sustained high-PAPR QAM/OFDM loads-making it suitable for DOCSIS 3.1 downstream deployments where spectral efficiency demands strict composite distortion control across the full 1 GHz band.
Is the CGD1046HI qualified for automotive or industrial temperature grade applications?
No, the CGD1046HI is not automotive-qualified and is specified for commercial/industrial use only, with mounting base temperature range of −20 °C to +100 °C. It lacks AEC-Q100 qualification, extended temperature screening, or automotive-specific reliability testing. While it operates reliably in outdoor CATV cabinets, it is not intended for engine bay, infotainment head unit, or ADAS radar applications-designers requiring automotive-grade RF amplifiers must select NXP's separate automotive-qualified portfolio, not the CGD1046HI.
CGD1046HI,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- SOT-115J
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- CATV
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 450 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Chassis Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT115J
CGD1046HI,112 FAQ
1.How can I place an order for CGD1046HI,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for CGD1046HI,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 CGD1046HI,112 reliable?
The price and inventory of CGD1046HI,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CGD1046HI,112 is usually 5 days.
3.What payment methods are accepted for CGD1046HI,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CGD1046HI,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CGD1046HI,112?
CGD1046HI,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CGD1046HI,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 CGD1046HI,112?
For technical support, including CGD1046HI,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CGD1046HI,112 requirements.
6.How does Aetrix verify that CGD1046HI,112 is sourced from the original manufacturer or authorized distributors?
All CGD1046HI,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 CGD1046HI,112 meets industry standards.
7.What is the process for return or replacement of CGD1046HI,112?
All CGD1046HI,112 units undergo pre-shipment inspection (PSI). If there is an issue with CGD1046HI,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 CGD1046HI,112 part is unused and in its original packaging.
Return procedure for CGD1046HI,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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