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NXP Semiconductors MHW9187N
- Part No.:
- MHW9187N
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Amps and Modules
- Package:
- Module
- Datasheet:
-
MHW9187N.pdf
- Description:
- IC AMP CATV 7-CATV MODULE
- Quantity:
- Payment:
- Shipping:
Inventory:3,225
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Product details
Overview
MHW9187N from Freescale Semiconductor is a GaAs-based CATV forward power doubler amplifier module designed for 40–870 MHz RF distribution systems. It delivers 20 dB typical gain at 870 MHz, supports 132-channel flat loading with –62 dBc typical CSO, operates from +24 Vdc, and targets output-stage amplification in optical nodes and trunk amplifiers.
For engineers reviewing the MHW9187N datasheet, MHW9187N pinout, MHW9187N application, or MHW9187N equivalent, key selection criteria include its 75 Ω impedance matching, unconditional stability across all loads, distortion performance under multi-channel CATV loading, and compatibility with legacy MHW9187 designs.
Technical Context
The MHW9187N employs GaAs FET transistor technology to achieve high linearity and unconditionally stable operation across 40–870 MHz. Its design enables flat gain response (≤0.5 dB slope) and low noise figure (3.5 dB typ. at 550/750 MHz), critical for maintaining signal integrity in dense channel environments.
It is specified for multiple tilt configurations (12 dB, 13.5 dB, 17 dB) and channel loadings (79-, 112-, 132-channel), with distortion metrics measured at defined output levels (+48 or +56 dBmV/ch.) and worst-case frequency conditions per industry CATV test standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 40–870 MHz - Full-band operation covering entire CATV spectrum including upstream/downstream and DOCSIS-compliant bands. |
| Power Gain @ 870 MHz | 20 dB typical - Enables sufficient headroom for cascaded amplification without external gain staging. |
| Gain Flatness (40–870 MHz) | ≤0.5 dB peak-to-valley - Ensures uniform channel power across full bandwidth, minimizing tilt compensation complexity. |
| Composite Second Order (CSO) | –62 dBc typical (132-ch flat, +48 dBmV/ch) - Meets stringent cable system linearity requirements for digital QAM signal fidelity. |
| Noise Figure | 3.5 dB typical @ 550/750 MHz - Supports low-noise upstream signal recovery in bidirectional HFC networks. |
| DC Supply & Current | +24 Vdc / 425 mA typical - Optimized for standard CATV power feeding architecture with predictable thermal dissipation. |
| Input/Output Return Loss | ≥16 dB (input), ≥18 dB (output) - Ensures robust 75 Ω impedance match to minimize reflections in coaxial plant infrastructure. |
Pinout & Package
Package: Case 1302-01, Style 1 - Hermetically sealed metal-ceramic module with through-hole mounting and integrated RF shielding for CATV field reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RF Input | 75 Ω matched input port for upstream/downstream signal injection; requires no external DC blocking. |
| 2, 3, 7, 8 | Ground | Four dedicated ground terminals ensure low-inductance RF return path and thermal conduction to heatsink or chassis. |
| 5 | VDC | +24 Vdc supply input; decoupling capacitor must be placed adjacent to pin per layout guidelines. |
| 9 | RF Output | 75 Ω matched output driving coaxial trunk or drop lines; capable of +58 dBmV output under 79-channel tilted conditions. |
Key Features
| Feature | Design Value |
|---|---|
| GaAs FET Technology | Delivers higher output capability and superior intermodulation suppression vs. silicon alternatives in broadband CATV applications. |
| Unconditional Stability | Guarantees stable operation into any 75 Ω load impedance without external stabilization networks or tuning. |
| Multi-Channel Loading Support | Validated performance across 79-, 112-, and 132-channel flat and tilted configurations per SCTE/ANSI standards. |
| RoHS Compliance | Meets lead-free manufacturing requirements without performance trade-offs versus non-RoHS predecessors. |
| Drop-in Replacement for MHW9187 | No form, fit, or function changes - allows direct substitution in existing designs without layout or firmware modification. |
Applications
| Optical Node Output Stage | Trunk Distribution Amplifier |
|---|---|
Use Scenario: Final-stage RF amplification in fiber-deep optical nodes converting downstream optical signals to coaxial RF for neighborhood distribution. IC Role / Device Role / Timing Role: Forward power doubler providing broadband gain and linearity before signal splitting to multiple coaxial drops. Use Value: Delivers +58 dBmV output under 79-channel tilted conditions while maintaining ≤0.5 dB gain flatness - enabling longer trunk runs without repeaters. | Use Scenario: Mid-span amplification in aerial or underground coaxial trunk lines carrying 132-channel digital video and data traffic. IC Role / Device Role / Timing Role: High-linearity CATV amplifier ensuring minimal composite distortion accumulation over cascaded stages. Use Value: Achieves –62 dBc CSO and –56 dBc XMD at +48 dBmV/ch., meeting SCTE 40 compliance for multi-gigabit DOCSIS 3.1/4.0 deployments. |
| Line Extender | Driver Amplifier (General Purpose) |
Use Scenario: Signal restoration in long-haul coaxial feeder lines where attenuation exceeds 20 dB per 1000 ft. IC Role / Device Role / Timing Role: Wideband RF power amplifier compensating for cable loss while preserving channel flatness and SNR. Use Value: 20 dB gain at 870 MHz with 3.5 dB NF ensures adequate upstream signal margin for DOCSIS upstream return path integrity. | Use Scenario: Broadband driver stage in test equipment, spectrum analyzers, or custom RF subsystems requiring 40–870 MHz coverage. IC Role / Device Role / Timing Role: Linear RF gain block delivering stable, low-distortion amplification independent of load variation. Use Value: Unconditional stability and 75 Ω I/O matching eliminate need for external isolators or matching networks - reducing BOM count and layout risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CATV amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MHW9187 | Identical electrical specs and pinout; superseded by MHW9187N with RoHS compliance only. | No functional difference; legacy part remains viable where RoHS not mandated. | Select MHW9187N for new designs requiring RoHS compliance; MHW9187 acceptable for repair or legacy procurement. |
| MAX2108 | Lower gain (17 dB), narrower bandwidth (45–870 MHz), higher NF (4.5 dB), but integrates bias control and shutdown logic. | Targeted at space-constrained, digitally controlled CATV modules rather than discrete high-power stages. | Choose MAX2108 when programmable bias or smaller footprint is prioritized over raw output power and distortion performance. |
Compared with MHW9187 and MAX2108, the MHW9187N offers best-in-class CSO/CTB performance for high-channel-count analog/digital hybrid systems, retains full backward compatibility with MHW9187 layouts, and provides higher gain and lower noise than MAX2108 - making it optimal for demanding trunk and node output stages.
Availability
MHW9187N is available at Aetrix Electronics and suitable for optical node output stages, trunk distribution amplifiers, and line extenders requiring stable component supply and long-term lifecycle support in CATV infrastructure programs.
Supply support for MHW9187N 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
Freescale Semiconductor was a global semiconductor company specializing in embedded processing, analog, and RF solutions before its acquisition by NXP Semiconductors in 2015.
The MHW9187N belongs to Freescale's CATV RF amplifier product line, engineered specifically for high-linearity, high-output broadband amplification in cable television distribution networks.
FAQ
What is the operating voltage range for the MHW9187N?
The MHW9187N is rated for +24 Vdc nominal operation, with an absolute maximum DC supply voltage of +28 Vdc. It draws 425 mA typical current at +24 Vdc and +45°C case temperature. Operation outside the specified +24 Vdc condition may degrade distortion performance or violate maximum ratings - always verify thermal derating and ripple limits per Freescale Application Note AN1998.
Does the MHW9187N require external biasing or tuning components?
No, the MHW9187N is a fully self-biased GaAs module requiring only +24 Vdc on Pin 5 and proper RF grounding on Pins 2, 3, 7, and 8. No external bias networks, feedback loops, or tuning capacitors are needed - its internal circuitry ensures stable quiescent point across temperature and supply variations, simplifying integration into CATV hardware.
Is the MHW9187N pin-compatible with earlier versions like MHW9187?
Yes, the MHW9187N is a direct replacement for MHW9187 with identical pinout, mechanical dimensions, and electrical specifications. Freescale explicitly states "no form, fit or function changes" - meaning PCB layout, thermal interface, and RF routing remain unchanged, enabling seamless migration to RoHS-compliant production without redesign.
What are the key distortion metrics for MHW9187N under 132-channel flat loading?
Under 132-channel flat loading at +48 dBmV per channel, the MHW9187N achieves –62 dBc typical Composite Second Order (CSO), –55 dBc typical Cross Modulation Distortion (XMD), and –56 dBc typical Composite Triple Beat (CTB). These values are measured at 870 MHz and reflect worst-case channel combinations per SCTE 40 test methodology.
Can the MHW9187N be used in 50 Ω systems?
No - the MHW9187N is strictly designed for 75 Ω CATV infrastructure. Its input and output return loss (≥16 dB min) is specified only for 75 Ω systems. Using it in 50 Ω environments causes significant mismatch loss (>1 dB), degraded distortion, and potential instability; a 75-to-50 Ω broadband transformer would be required, adding insertion loss and complexity.
MHW9187N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- Module
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- CATV
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 425 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Chassis Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 7-CATV Module
MHW9187N FAQ
1.How can I place an order for MHW9187N through Aetrix?
Please submit a Request for Quotation (RFQ) for MHW9187N 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 MHW9187N reliable?
The price and inventory of MHW9187N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MHW9187N is usually 5 days.
3.What payment methods are accepted for MHW9187N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MHW9187N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MHW9187N?
MHW9187N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MHW9187N 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 MHW9187N?
For technical support, including MHW9187N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MHW9187N requirements.
6.How does Aetrix verify that MHW9187N is sourced from the original manufacturer or authorized distributors?
All MHW9187N 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 MHW9187N meets industry standards.
7.What is the process for return or replacement of MHW9187N?
All MHW9187N units undergo pre-shipment inspection (PSI). If there is an issue with MHW9187N, 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 MHW9187N part is unused and in its original packaging.
Return procedure for MHW9187N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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