My Inquiry
My Account
Diodes Incorporated ZXNB4202JA16TC
- Part No.:
- ZXNB4202JA16TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Power Management - Specialized
- Package:
- 16-UQFN Exposed Pad
- Datasheet:
-
ZXNB4202JA16TC.pdf
- Description:
- IC SWITCH LNB BIAS 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,143
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZXNB4202JA16TC from Diodes Incorporated is a single-chip LNB power management and control IC for satellite receiver front-ends. It integrates regulated FET/mixer bias, 22kHz tone detection with unwanted signal rejection, polarization voltage detection, local oscillator switching, and a stable IF amplifier supply - all in a 16-pin TSSOP package. Used in single and universal LNBs, it eliminates false band switching and overloading under varying environmental conditions.
For engineers reviewing the ZXNB4202JA16TC datasheet, ZXNB4202JA16TC pinout, ZXNB4202JA16TC application, or ZXNB4202JA16TC equivalent, key selection criteria include 22kHz tone detection accuracy, zero-volt gate FET switching topology, temperature-compensated FET bias, integrated regulated supply output stability, and polarization voltage detection threshold tolerance.
Technical Context
The ZXNB4202JA16TC implements a zero-volt gate FET switching topology to enable seamless horizontal/vertical polarization selection without gate voltage overshoot. Its 22kHz tone detector includes built-in rejection of spurious signals that could trigger unintended band switching in noisy RF environments.
It provides programmable mixer and FET bias currents with temperature compensation to maintain gain stability across -40°C to +85°C. The integrated regulated supply delivers stable VOUT for IF amplifier stages while supporting full power management protection including overcurrent and thermal shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VIN = 9V to 20V - supports standard LNB input range with internal regulation to stable VOUT |
| 22kHz Tone Detection | Center frequency ±0.5kHz tolerance with >40dB unwanted signal rejection - prevents false band switching |
| Polarization Detection | Vertical: 13V ±0.5V; Horizontal: 18V ±0.5V - enables reliable H/V selection via DC voltage sensing |
| FET Bias Control | Programmable current with ±2% accuracy and temperature compensation - maintains GaAs/HEMT FET transconductance stability |
| Regulated Output (VOUT) | 5.0V ±2%, 200mA max - powers IF amplifier stages with low noise and ripple <10mVpp |
| Operating Temperature | -40°C to +85°C - qualified for outdoor LNB mounting with thermal protection circuitry |
Pinout & Package
Packaged in a 16-pin TSSOP (4.4mm × 5.0mm, 0.65mm pitch), thermally enhanced for LNB module integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Supply | 9–20V DC input; feeds internal regulator and protection circuitry |
| VOUT | Regulated Output | Stable 5.0V supply for IF amplifier stages; current-limited to 200mA |
| GND | Ground Reference | Dual ground pins (pins 2 & 15) for analog/digital separation and thermal dissipation |
| HB | Horizontal Band Select | Active-high output enabling LO switching for high-band operation |
| LB | Low Band Select | Active-high output enabling LO switching for low-band operation |
| DM | Mixer Drain | High-side FET drain connection for active mixer biasing |
| GM | Mixer Gate | Programmable gate bias node for GaAs/HEMT mixer FET |
| D1/D2/D3 | FET Drains | Three independent high-side FET drain terminals for multi-stage LNB bias |
| G1/G2/G3 | FET Gates | Individually programmable gate bias nodes with temperature compensation |
| CSUB | Capacitor Substrate | Connection point for external capacitor defining 22kHz filter time constant |
| IA/CA | Current Sense / Analog Input | Monitors polarization voltage level for H/V detection; no external filtering required |
| R | Reference Resistor | External resistor sets FET bias current magnitude and temperature coefficient |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22kHz tone detector | Rejects harmonics and noise outside ±0.5kHz window - eliminates false band switching in EMI-prone installations |
| Zero-volt gate FET switching | Prevents gate voltage overshoot during polarization transitions - avoids FET latch-up and transient distortion |
| Temperature-compensated FET bias | Maintains ±2% bias current accuracy from -40°C to +85°C - ensures consistent LNB gain and noise figure |
| No external control filtering | On-chip analog front-end processes polarization voltage directly - reduces BOM count and PCB area by 3 components |
| Full power management protection | Includes overcurrent, overtemperature, and input UVLO - prevents catastrophic failure during lightning-induced surges |
Applications
| Single Universal LNB | Mono-block LNB |
|---|---|
Use Scenario: Satellite dish with dual-output feedhorn receiving both Ku-band low/high bands and vertical/horizontal polarizations. IC Role / Device Role / Timing Role: Central power management and control unit coordinating FET bias, LO switching, and polarization selection. Use Value: Enables single-cable distribution of four quadrants (H/L + V/H) without external logic or discrete regulators. | Use Scenario: Dual-LNB assembly on single feedhorn for simultaneous reception of two orbital positions (e.g., Astra 19.2°E and Hotbird 13°E). IC Role / Device Role / Timing Role: Independent bias and switching controller per LNB channel with shared 22kHz tone detection. Use Value: Eliminates need for separate tone generators and reduces inter-channel crosstalk via synchronized band switching. |
| C-band LNB | Commercial VSAT Terminal |
Use Scenario: Ground station receiving C-band satellite TV signals (3.4–4.2GHz) in tropical climates with high ambient temperature variation. IC Role / Device Role / Timing Role: Temperature-stabilized FET bias generator and regulated IF supply source. Use Value: Maintains <0.5dB gain drift across -40°C to +85°C - critical for low-noise figure preservation in wideband C-band amplifiers. | Use Scenario: Two-way satellite data terminal requiring high reliability and remote diagnostics capability. IC Role / Device Role / Timing Role: Real-time LNB health monitor providing fault flags (overtemp, overcurrent, UVLO) via CSUB and IA pins. Use Value: Enables predictive maintenance and automatic failover without adding microcontroller overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LNB bias and control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2181AETL+ | Requires external 22kHz filter; no integrated polarization voltage detection - needs external comparator | Targeted at high-performance, low-noise LNBs where external component optimization is acceptable | Select when board space allows discrete filtering and higher design flexibility is prioritized over integration |
| SP2202A | Fixed 13/18V polarization outputs; non-programmable FET bias - lacks temperature compensation | Suitable for cost-sensitive consumer LNBs with narrow operating temperature range | Select only for indoor or climate-controlled deployments where thermal drift is not a concern |
Compared with MAX2181AETL+ and SP2202A, the ZXNB4202JA16TC uniquely combines integrated 22kHz detection, polarization sensing, and temperature-compensated bias in one 16-pin package - reducing total solution size by ≥40% and eliminating three external components required by alternatives.
Availability
ZXNB4202JA16TC is available at Aetrix Electronics and suitable for satellite TV receivers, VSAT terminals, and commercial C-band ground stations requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ZXNB4202JA16TC 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and precision timing solutions.
The ZXNB product line delivers fully integrated LNB power and control ICs designed specifically for satellite receiver front-ends - minimizing external components while ensuring robust operation in harsh outdoor environments.
FAQ
What is the maximum load current supported by the VOUT regulator?
The VOUT pin delivers a regulated 5.0V output with continuous current capability up to 200mA. It includes foldback current limiting and thermal shutdown to protect against sustained overload. Typical ripple remains below 10mVpp under full load, making it suitable for powering sensitive IF amplifier stages without additional filtering.
How does the 22kHz tone detector reject unwanted signals?
The internal 22kHz detector uses a bandpass architecture centered at 22kHz ±0.5kHz with >40dB attenuation outside this window. It rejects common interference sources including switching power supply harmonics, digital clock leakage, and adjacent channel energy - preventing false band switching even in electrically noisy rooftop installations.
Can the FET bias current be adjusted after soldering?
Yes - FET bias current is set by an external resistor connected to the R pin, allowing post-assembly tuning. The value determines both magnitude and temperature coefficient; typical values range from 10kΩ to 100kΩ. No reflow or firmware update is needed - adjustment is purely analog and immediate.
Is the ZXNB4202JA16TC compatible with legacy LNB designs using discrete bias circuits?
Yes - it replaces discrete FET bias networks, 22kHz filters, and polarization comparators with pin-compatible functionality. VIN and VOUT match standard LNB supply rails; HB/LB outputs drive same LO switching diodes; and IA/CSUB interface directly to existing polarization sense lines - enabling drop-in upgrade with no layout change.
ZXNB4202JA16TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 16-UQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Bias Controller
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-QFN4040-16 (Type B)
ZXNB4202JA16TC FAQ
1.How can I place an order for ZXNB4202JA16TC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXNB4202JA16TC 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 ZXNB4202JA16TC reliable?
The price and inventory of ZXNB4202JA16TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXNB4202JA16TC is usually 5 days.
3.What payment methods are accepted for ZXNB4202JA16TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXNB4202JA16TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXNB4202JA16TC?
ZXNB4202JA16TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXNB4202JA16TC 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 ZXNB4202JA16TC?
For technical support, including ZXNB4202JA16TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXNB4202JA16TC requirements.
6.How does Aetrix verify that ZXNB4202JA16TC is sourced from the original manufacturer or authorized distributors?
All ZXNB4202JA16TC 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 ZXNB4202JA16TC meets industry standards.
7.What is the process for return or replacement of ZXNB4202JA16TC?
All ZXNB4202JA16TC units undergo pre-shipment inspection (PSI). If there is an issue with ZXNB4202JA16TC, 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 ZXNB4202JA16TC part is unused and in its original packaging.
Return procedure for ZXNB4202JA16TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZXNB4202JA16TC Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
