My Inquiry
My Account
NXP Semiconductors CGY887B,112
- Part No.:
- CGY887B,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Amps and Modules
- Package:
- SOT-115J
- Datasheet:
-
CGY887B,112.pdf
- Description:
- IC AMP CATV SOT115J
- Quantity:
- Payment:
- Shipping:
Inventory:3,405
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CGY887B,112 from NXP Semiconductors is a hybrid CATV push-pull amplifier module operating at 24 V DC in a SOT115J package, delivering 27.8 dB gain at 870 MHz, 5 dB noise figure up to 870 MHz, and −63.5 dB CTB distortion with 79-channel flat input. It integrates GaAs and Si dies for broadband CATV distribution amplification.
For engineers reviewing the CGY887B,112 datasheet, CGY887B,112 pinout, CGY887B,112 application, or CGY887B,112 equivalent, key selection criteria include its 45–870 MHz bandwidth, 295–325 mA total current draw at 24 V, gold-metallized rugged construction, and 75 Ω impedance matching for cable TV headend and node amplifiers.
Technical Context
The CGY887B,112 employs a hybrid push-pull architecture combining GaAs and silicon dies to achieve high linearity and low distortion across 45–870 MHz. Its design targets constant-gain flatness (±0.5 dB over 100–800 MHz) and maintains ≥14 dB input/output return loss up to 870 MHz.
Operating at 24 V DC with 310 mA typical current draw, it delivers 66 dBmV output voltage under DIN45004B-compliant test conditions and supports transient supply voltages up to 30 V without damage. Mounting uses two vertical 6-32 UNC holes on an aluminum flange for thermal stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 45–870 MHz - fully specified performance across full CATV band including extended 870 MHz edge. |
| Power Gain | 27.8 dB at 870 MHz - enables single-stage amplification without cascading in node/hub applications. |
| Noise Figure | 5 dB up to 870 MHz - preserves signal-to-noise ratio in multi-stage cascade designs. |
| CTB Distortion | −63.5 dB (79 ch, 44 dBmV output) - meets stringent DOCSIS and EuroDOCSIS upstream linearity requirements. |
| Total Current | 310 mA typ. at 24 V - defines thermal load and power supply sizing for chassis-level design. |
| Input/Output Return Loss | ≥14 dB at 870 MHz - ensures <0.025 reflection coefficient for stable 75 Ω system impedance matching. |
| Supply Voltage Range | 24 V nominal, 30 V absolute max - accommodates line transients in outdoor plant environments. |
Pinout & Package
SOT115J package: rectangular single-ended metal-flange module with 7 gold-plated in-line leads, aluminum base for thermal conduction, and two vertical 6-32 UNC 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 directly to upstream coaxial feed without external matching. |
| 2, 3 | Common Ground | DC and RF ground reference shared between input stage and bias network. |
| 5 | +VB Supply | 24 V DC power input; designed for low-impedance bypassing to suppress supply ripple-induced distortion. |
| 7, 8 | Common Ground | Output-stage ground return path; electrically isolated from pins 2/3 in internal layout to minimize interstage coupling. |
| 9 | RF Output | 75 Ω matched output port; capable of driving 75 Ω coaxial trunk lines with minimal reflection. |
Key Features
| Feature | Design Value |
|---|---|
| Hybrid GaAs/Si die integration | Combines GaAs high-frequency gain with Si bias/control stability for consistent 27.8 dB gain across temperature. |
| Gold metallization | Ensures >10-year reliability in humid, high-vibration CATV outdoor enclosures per Telcordia GR-1089. |
| Push-pull linearity architecture | Enables −63.5 dB CTB and −64 dB CSO without external linearization circuitry or predistortion. |
| Aluminum flange thermal path | Supports 100 °C mounting base operation with ≤20 °C/W thermal resistance to heatsink. |
| 75 Ω broadband impedance match | Eliminates need for external matching networks across 45–870 MHz, reducing BOM and board space. |
Applications
| CATV Headend Amplifier | HFC Node Amplifier |
|---|---|
|
Use Scenario: Signal distribution from fiber node to coaxial trunk in hybrid fiber-coax networks. IC Role / Device Role / Timing Role: Final-stage broadband RF power amplifier boosting downstream signals before splitting to multiple coaxial branches. Use Value: Delivers 66 dBmV output with −63.5 dB CTB at 79 channels, enabling 32-way passive splits without violating FCC spectral mask limits. |
Use Scenario: Amplification at optical node outputs feeding 1–2 km coaxial drop segments. IC Role / Device Role / Timing Role: High-linearity driver for 75 Ω coaxial plant with minimal group delay variation across 45–870 MHz. Use Value: Maintains ±0.5 dB gain flatness from 100–800 MHz, preventing channel tilt-induced SNR degradation in multi-channel QAM systems. |
| CATV Trunk Line Amplifier | DOCSIS Upstream Booster |
|
Use Scenario: Periodic gain restoration along long-haul coaxial trunk lines carrying 132-channel flat spectrum. IC Role / Device Role / Timing Role: Push-pull RF amplifier with rugged 30 V transient tolerance for outdoor pole-mounted enclosures. Use Value: −57.5 dB CTB at 132 channels ensures compliance with DOCSIS 3.1 upstream spectral purity requirements at 5–85 MHz. |
Use Scenario: Boosting upstream return-path signals from multiple subscribers before fiber transmission. IC Role / Device Role / Timing Role: Low-noise, high-dynamic-range amplifier for 5–65 MHz upstream band with minimal cross-modulation. Use Value: −57 dB Xmod at 55.25 MHz prevents ingress-induced interference in shared upstream channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CATV amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CGY887A,112 | Lower gain: 26.5 dB typ. at 870 MHz; identical pinout, package, and biasing. | Suitable for shorter trunk runs where lower gain avoids overdriving downstream stages. | Select when system gain budget allows 1.3 dB margin reduction to improve power efficiency. |
| CGY888B,112 | Extended frequency range: 45–1000 MHz; same gain, noise figure, and distortion specs. | Required for DOCSIS 4.0 deployments supporting 1.2 GHz upstream spectrum. | Choose only if future-proofing beyond 870 MHz is mandated; otherwise CGY887B,112 offers cost and thermal advantage. |
Compared with CGY887A,112 and CGY888B,112, the CGY887B,112 provides optimal balance of gain, linearity, and thermal performance specifically for legacy and DOCSIS 3.x CATV plants operating strictly within 45–870 MHz, avoiding unnecessary cost or complexity of wider-band alternatives.
Availability
CGY887B,112 is available at Aetrix Electronics and suitable for CATV headend amplifiers, HFC node amplifiers, and coaxial trunk line repeaters requiring stable component supply, long-lifecycle support, and traceable sourcing for broadcast infrastructure programs.
Supply support for CGY887B,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 leader in high-performance RF and analog solutions, specializing in automotive, industrial, and communications semiconductors with emphasis on signal integrity and reliability.
The CGY887B,112 belongs to NXP's legacy CATV amplifier product line, engineered specifically for broadband cable infrastructure applications demanding ruggedness, linearity, and 75 Ω system compatibility.
FAQ
What is the maximum supply voltage rating for the CGY887B,112?
The CGY887B,112 has an absolute maximum supply voltage of 30 V DC, though it operates nominally at 24 V. This 6 V headroom accommodates transient surges common in outdoor CATV plant power feeds, ensuring robust operation without latch-up or permanent damage during voltage spikes.
Does the CGY887B,112 require external biasing components?
No, the CGY887B,112 is a fully self-contained hybrid module with integrated bias networks. It requires only a stable 24 V DC supply applied to pin 5 (+VB), proper RF input/output termination in 75 Ω, and grounding of pins 2, 3, 7, and 8 - no external resistors, capacitors, or inductors are needed for basic operation.
What is the thermal resistance of the CGY887B,112 package?
The CGY887B,112 uses a metal-flange SOT115J package designed for direct heatsink mounting. While not explicitly stated as θJA, its aluminum base and flange geometry support ≤20 °C/W thermal resistance to a properly mounted heatsink, enabling continuous operation at Tmb = 100 °C with 310 mA current draw.
Is the CGY887B,112 compliant with DOCSIS 3.1 upstream specifications?
Yes, the CGY887B,112 meets DOCSIS 3.1 upstream linearity requirements: its −57.5 dB CTB at 132 channels and −51 dB Xmod at 55.25 MHz satisfy spectral purity mandates for 5–85 MHz return-path amplification in multi-node deployments.
Can the CGY887B,112 be used in 50 Ω systems?
No - the CGY887B,112 is optimized exclusively for 75 Ω CATV infrastructure. Its input and output return losses, gain flatness, and distortion performance are characterized and guaranteed only at 75 Ω. Using it in 50 Ω systems degrades s11/s22, increases ripple, and invalidates all published distortion metrics.
CGY887B,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:
- 310 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Chassis Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT115J
CGY887B,112 FAQ
1.How can I place an order for CGY887B,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for CGY887B,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 CGY887B,112 reliable?
The price and inventory of CGY887B,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CGY887B,112 is usually 5 days.
3.What payment methods are accepted for CGY887B,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CGY887B,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CGY887B,112?
CGY887B,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CGY887B,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 CGY887B,112?
For technical support, including CGY887B,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CGY887B,112 requirements.
6.How does Aetrix verify that CGY887B,112 is sourced from the original manufacturer or authorized distributors?
All CGY887B,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 CGY887B,112 meets industry standards.
7.What is the process for return or replacement of CGY887B,112?
All CGY887B,112 units undergo pre-shipment inspection (PSI). If there is an issue with CGY887B,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 CGY887B,112 part is unused and in its original packaging.
Return procedure for CGY887B,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CGY887B,112 Tags
-
LT6552CS8#PBF
Analog Devices Inc.
-
LT6205IS5#TRPBF
Analog Devices Inc.
-
LT6206IMS8#TRPBF
Analog Devices Inc.
-
LT6552CDD#PBF
Analog Devices Inc.
-
LT6552IS8#PBF
Analog Devices Inc.
-
LT1252CS8#PBF
Analog Devices Inc.
-
AD818ARZ-REEL7
Analog Devices Inc.
-
MAX4310EUA+
Analog Devices Inc./Maxim Integrated
-
AD829ARZ
Analog Devices Inc.
-
AD810ARZ
Analog Devices Inc.
-
MAX4310ESA+
Analog Devices Inc./Maxim Integrated
-
MAX4313ESA+
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
