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NXP Semiconductors OM13535UL
- Part No.:
- OM13535UL
- Manufacturer:
- NXP Semiconductors
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
OM13535UL.pdf
- Description:
- BOARD DEMO SA602AD/SA604AD
- Quantity:
- Payment:
- Shipping:
Inventory:1,020
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Product details
Overview
The SA602A from NXP Semiconductors is a low-power VHF monolithic double-balanced mixer with integrated input amplifier, on-board oscillator, and voltage regulator. It delivers 17 dB typical conversion gain at 45 MHz, <5.0 dB noise figure, and −13 dBm input third-order intercept point, making it suitable for cellular radio front-ends and portable VHF transceivers.
For engineers reviewing the SA602A datasheet, SA602A pinout, SA602A application, or SA602A equivalent, key selection considerations include its Gilbert-cell architecture, 2.4 mA supply current, SO8 package compatibility, and support for crystal/tank/external LO configurations up to 200 MHz.
Technical Context
The SA602A implements a differential Gilbert-cell multiplier core biased via internal temperature-compensated networks, enabling stable RF gain and noise performance across −40 °C to +85 °C. Its RF inputs (IN_A/IN_B) present ~1.5 kΩ || 3 pF impedance, while mixer outputs (OUT_A/OUT_B) are internally terminated with 1.5 kΩ resistors to VCC.
The integrated oscillator supports crystal (overtone mode), tuned tank (Colpitts/Hartley), or external LO injection via OSC_B (pin 6); OSC_E (pin 7) provides emitter-follower output. Oscillation extends beyond 200 MHz with sufficient tank Q, and a 22 kΩ resistor from OSC_E to ground improves startup above 100 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Conversion Gain | 17 dB typical at 45 MHz - enables direct IF amplification without intermediate gain stages |
| Noise Figure | <5.0 dB typical at 45 MHz - supports reception of weak signals down to −119 dBm in cellular IF systems |
| Input IP3 | −13 dBm typical - defines dynamic range limit before third-order distortion dominates in RF front-ends |
| Supply Current | 2.4 mA typical at 6 V - allows battery operation in portable radios and data links |
| Oscillator Frequency | Up to 200 MHz - supports VHF mixing and local oscillator generation without external synthesizer |
| RF Input Impedance | ~1.5 kΩ || 3 pF - matches ceramic/crystal filters directly, minimizing external matching components |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and commercial portable equipment environments |
Pinout & Package
SA602A is housed in an 8-lead SO (SO8, SOT96-1) surface-mount package with 3.9 mm body width, compatible with standard reflow soldering profiles per J-STD-020D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN_A (1) | RF differential input A | Symmetrical, internally biased RF port; interchangeable with IN_B; no external DC bias required |
| IN_B (2) | RF differential input B | Complements IN_A for balanced mixer operation; AC-coupled input impedance ~1.5 kΩ || 3 pF |
| GND (3) | Analog ground reference | Primary ground return for RF, oscillator, and bias networks; requires low-inductance PCB connection |
| OUT_A (4) | Mixer differential output A | Internally terminated to VCC via 1.5 kΩ; supports single-ended or balanced IF filtering |
| OUT_B (5) | Mixer differential output B | Complementary to OUT_A; enables balanced IF output or single-ended termination with 1.5 kΩ load |
| OSC_B (6) | Oscillator base input | Accepts external LO drive (≥200 mVPP) or connects to crystal/tank for self-oscillation |
| OSC_E (7) | Oscillator emitter output | Provides buffered oscillator signal; 22 kΩ to GND improves startup stability above 100 MHz |
| VCC (8) | Positive supply rail | 4.5–8.0 V operation; integrates voltage regulator for internal bias stability across supply variation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated oscillator/buffer | Supports crystal (overtone), LC tank, or external LO - eliminates discrete oscillator components |
| Gilbert-cell mixer core | Delivers 17 dB gain and −13 dBm IP3 with <5 dB NF - balances sensitivity and linearity in compact VHF designs |
| Low external parts count | Direct interface to crystal/ceramic filters - reduces BOM and board space in IF sections |
| Temperature-compensated bias | Maintains stable gain and noise over −40 °C to +85 °C - avoids calibration in portable equipment |
| Single-supply operation | 4.5–8.0 V range with internal regulator - simplifies power design versus dual-rail mixers |
Applications
| Cellular Radio Front-End | Portable VHF Transceiver |
|---|---|
|
Use Scenario: Second IF stage in 45 MHz cellular receivers using SFG455A3 ceramic filter. IC Role / Device Role / Timing Role: Double-balanced mixer and local oscillator generator for frequency downconversion. Use Value: Enables −119 dBm sensitivity with 12 dB S/N ratio using only one IC and minimal external passives. |
Use Scenario: Compact handheld two-way radio operating in 136–174 MHz band with crystal-controlled LO. IC Role / Device Role / Timing Role: RF-to-IF mixer and overtone crystal oscillator driving 455 kHz IF filter. Use Value: Reduces component count by integrating oscillator and mixer, supporting battery life >24 hours at 2.4 mA quiescent current. |
| VHF Data Link Receiver | Instrumentation Frequency Converter |
|
Use Scenario: 144 MHz amateur radio telemetry receiver with Colpitts tank oscillator. IC Role / Device Role / Timing Role: High-linearity mixer for narrowband digital signal recovery. Use Value: −13 dBm IP3 ensures clean demodulation of FSK signals under strong adjacent-channel interference. |
Use Scenario: Lab-grade spectrum analyzer front-end converting 30–200 MHz RF to fixed 10.7 MHz IF. IC Role / Device Role / Timing Role: Precision double-balanced mixer with calibrated conversion gain and noise floor. Use Value: <5.0 dB noise figure and stable 17 dB gain enable accurate amplitude measurement across VHF band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar double-balanced mixer and oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SA604A | Integrates SA602A mixer with limiter/demodulator; higher supply current (3.5 mA); same SO8 package | Targeted specifically for 45 MHz cellular second IF demodulation, not general-purpose VHF mixing | Select SA604A only when full IF chain integration (mixer + limiting + quadrature demod) is required |
| NE612 | Legacy variant with identical pinout and function but wider gain tolerance (14–20 dB); obsolete packaging (DIP8) | Limited availability; lacks updated thermal specs and oscillator startup enhancements of SA602A | Prefer SA602A for new designs requiring guaranteed −13 dBm IP3, <5 dB NF, and SO8 manufacturability |
Compared with SA604A and NE612, the SA602A offers superior noise figure and tighter IP3 specification in a modern SO8 package, while retaining full functional compatibility with legacy NE612 layouts where reflow assembly is used.
Availability
SA602A is available at Aetrix Electronics and suitable for cellular radio front-ends, portable VHF transceivers, and instrumentation frequency converters requiring stable component supply and long-term industrial availability.
Supply support for SA602A 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 specializing in high-performance analog, RF, and mixed-signal solutions for communications, automotive, and industrial markets.
The SA602A belongs to NXP's legacy RF mixer product line, designed specifically for low-power, high-sensitivity VHF communication systems including cellular handsets and portable radios.
FAQ
What is the maximum oscillator frequency supported by the SA602A?
The SA602A oscillator operates reliably up to 200 MHz in crystal or tuned tank configurations. Performance beyond this depends on tank Q factor and required drive level; external LO injection via OSC_B (pin 6) is recommended for frequencies exceeding 200 MHz. The SA602A datasheet confirms 200 MHz as the guaranteed upper limit for self-oscillation.
Can the SA602A be used with a 455 kHz ceramic filter without additional components?
Yes. The SA602A's mixer outputs (OUT_A/OUT_B) are internally terminated with 1.5 kΩ resistors to VCC, enabling direct connection to common 455 kHz ceramic filters like SFG455A3. No external pull-up or termination resistors are needed for single-ended operation, reducing BOM count and layout complexity in IF stages.
Does the SA602A require external DC biasing on its RF input pins?
No. The SA602A's RF inputs (IN_A and IN_B) are internally biased and symmetrical. External DC biasing must be avoided; AC coupling via series capacitors is required. The equivalent input impedance is ~1.5 kΩ || 3 pF through 50 MHz, optimized for direct interface with crystal or ceramic filters.
How does the SA602A handle strong interferers near the desired signal?
The SA602A's −13 dBm input third-order intercept point defines its linearity limit. When strong adjacent-channel signals are present, intermodulation products may degrade SNR. System designers must ensure input signal levels remain below −45 dBm to maintain specified IP3 performance, as validated in the SA602A dynamic characteristics table.
Is the SA602A pin-compatible with the NE612?
Yes. The SA602A shares identical pinout, electrical functionality, and SO8 footprint with the NE612, enabling drop-in replacement in existing designs. However, the SA602A offers improved noise figure (<5.0 dB vs. typical 5.5 dB) and tighter IP3 specification (−13 dBm vs. −12 dBm), verified in NXP's Rev. 3 datasheet.
OM13535UL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Receiver
- Frequency:
- 45MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- SA602A, SA604A
OM13535UL FAQ
1.How can I place an order for OM13535UL through Aetrix?
Please submit a Request for Quotation (RFQ) for OM13535UL 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 OM13535UL reliable?
The price and inventory of OM13535UL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OM13535UL is usually 5 days.
3.What payment methods are accepted for OM13535UL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OM13535UL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OM13535UL?
OM13535UL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OM13535UL 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 OM13535UL?
For technical support, including OM13535UL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OM13535UL requirements.
6.How does Aetrix verify that OM13535UL is sourced from the original manufacturer or authorized distributors?
All OM13535UL 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 OM13535UL meets industry standards.
7.What is the process for return or replacement of OM13535UL?
All OM13535UL units undergo pre-shipment inspection (PSI). If there is an issue with OM13535UL, 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 OM13535UL part is unused and in its original packaging.
Return procedure for OM13535UL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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