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NXP Semiconductors SA602AD,602
- Part No.:
- SA602AD,602
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Mixers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SA602AD,602.pdf
- Description:
- IC MIXER 500MHZ UP CONVRT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,119
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Product details
Overview
SA602AD,602 from NXP Semiconductors is a VHF double-balanced mixer IC with integrated Gilbert-cell core, on-chip oscillator, and voltage regulator - delivering 17 dB typical conversion gain at 45 MHz, <5.0 dB noise figure, and −13 dBm input third-order intercept point. It operates from 4.5 V to 8.0 V supply, draws 2.4 mA typical current, and targets cellular radio front-ends and portable transceivers.
For engineers reviewing the SA602AD,602 datasheet, SA602AD,602 pinout, SA602AD,602 application, or SA602AD,602 equivalent, key selection criteria include its 200 MHz max oscillator frequency, differential RF input impedance (1.5 kΩ || 3 pF), balanced mixer outputs, and SO8 package compatibility with crystal, ceramic, or tuned-tank LO configurations.
Technical Context
The SA602AD,602 implements a Gilbert-cell multiplier architecture for high-linearity mixing, paired with a bipolar oscillator stage configurable as crystal, LC tank, or external LO buffer. Its internal temperature-compensated bias network stabilizes performance across −40 °C to +85 °C ambient.
RF inputs (IN_A/IN_B) are internally biased and symmetrical; mixer outputs (OUT_A/OUT_B) each terminate to VCC via 1.5 kΩ resistors, enabling both single-ended and balanced IF extraction. The oscillator supports overtone crystal operation up to 200 MHz, with OSC_B (pin 6) accepting external LO signals ≥200 mVPP through DC blocking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Conversion Gain | 17 dB typical at 45 MHz - enables direct interface with low-level RF signals without pre-amplification |
| Noise Figure | <5.0 dB at 45 MHz - supports reception of weak signals down to −119 dBm in cellular IF stages |
| Input IP3 | −13 dBm typical - defines dynamic range ceiling before third-order distortion dominates in multi-channel RF environments |
| Oscillator Freq | Up to 200 MHz - covers VHF band operation with crystal or LC tank configurations |
| Supply Current | 2.4 mA typical at 6 V - enables battery-powered portable radios with extended operating life |
| RF Input Z | 1.5 kΩ || 3 pF - matches common crystal/ceramic filter networks without external biasing components |
| Mixer Output Z | 1.5 kΩ per output (OUT_A/OUT_B) - allows direct termination to 50 Ω or balanced IF transformers |
Pinout & Package
SA602AD,602 is housed in an 8-lead SO (SO8, SOT96-1) surface-mount package with 3.9 mm body width and standard gull-wing lead form.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN_A) | RF input A | Differential RF input terminal; internally biased; interchangeable with IN_B but not externally DC-biased |
| 2 (IN_B) | RF input B | Differential RF input terminal; symmetrical to IN_A; forms balanced mixer input pair |
| 3 (GND) | Ground | Analog ground reference for mixer, oscillator, and bias circuitry; requires low-impedance PCB connection |
| 4 (OUT_A) | Mixer output A | Differential IF output; internally terminated to VCC via 1.5 kΩ; supports single-ended or balanced IF extraction |
| 5 (OUT_B) | Mixer output B | Differential IF output; complementary to OUT_A; enables balanced IF filtering or transformer coupling |
| 6 (OSC_B) | Oscillator base | LO oscillator transistor base node; accepts external LO injection ≥200 mVPP via AC coupling capacitor |
| 7 (OSC_E) | Oscillator emitter | Oscillator transistor emitter node; can be grounded via 22 kΩ resistor to improve startup above 100 MHz |
| 8 (VCC) | Supply voltage | Positive supply input (4.5–8.0 V); powers all internal blocks including regulator, mixer, and oscillator |
Key Features
| Feature | Design Value |
|---|---|
| Integrated oscillator | Supports crystal, LC tank, or external LO drive - eliminates discrete oscillator components and reduces BOM count |
| Low-noise Gilbert cell | 1.5 kΩ || 3 pF RF input impedance matched to ceramic/crystal filters - minimizes external matching networks |
| Voltage regulator | Internal regulation ensures stable bias under varying supply conditions - improves gain and NF consistency across battery discharge |
| Low-power operation | 2.4 mA typical ICC at 6 V - extends runtime in handheld radios and portable data links without thermal derating |
| Temperature-stable bias | Compensated network maintains performance from −40 °C to +85 °C - suitable for outdoor VHF transceivers |
Applications
| Cellular Radio Front-End | Portable VHF Transceiver |
|---|---|
Use Scenario: First or second downconversion stage in 45 MHz IF cellular receivers using third-overtone crystals. IC Role / Device Role / Timing Role: Double-balanced mixer and local oscillator generator - performs RF-to-IF translation while providing stable LO signal. Use Value: Enables −119 dBm sensitivity with 12 dB S/N ratio and meets cellular radio specification requirements per NXP documentation. | Use Scenario: Compact handheld two-way radio operating in 136–174 MHz VHF band with crystal-filtered IF. IC Role / Device Role / Timing Role: Integrated mixer/oscillator subsystem - replaces discrete transistor oscillator and passive diode ring mixer. Use Value: Reduces component count by >6 parts and cuts PCB area by 35% versus discrete alternatives while maintaining 17 dB conversion gain. |
| RF Data Link Receiver | Instrumentation Frequency Converter |
Use Scenario: Low-power telemetry receiver in industrial sensor networks requiring robust 433/868 MHz ISM band demodulation. IC Role / Device Role / Timing Role: High-dynamic-range mixer with external LO buffering - converts RF to baseband or low-IF for ADC sampling. Use Value: −13 dBm input IP3 prevents intermodulation distortion from adjacent channel interference in dense RF environments. | Use Scenario: Lab-grade spectrum analyzer front-end translating HF/VHF signals to fixed IF for digitization. IC Role / Device Role / Timing Role: Precision double-balanced mixer with calibrated conversion gain - provides repeatable amplitude response across 500 kHz–200 MHz. Use Value: 17 dB typical gain and <5.0 dB noise figure ensure minimal SNR degradation during wideband frequency translation. |
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 |
|---|---|---|---|
| SA604AD,602 | Integrates SA602A mixer + limiting IF amplifier + quadrature detector; higher integration, no standalone oscillator | Designed for complete 45 MHz IF demodulation; lacks independent LO generation capability | Select when full IF chain (mixer + amp + demod) is needed; not a drop-in replacement for oscillator-required designs |
| NE612P8 | Same functional architecture but DIP-8 package; identical electrical specs except for thermal resistance (Zth(j-a) = 120 °C/W vs 90 °C/W) | Through-hole prototyping or legacy board reuse; unsuitable for high-density SMT production | Choose for breadboarding or repair of older equipment; SO8 SA602AD,602 preferred for new SMT designs |
Compared with SA604AD,602, the SA602AD,602 offers dedicated oscillator flexibility and lower power, while NE612P8 provides identical RF performance in through-hole format - making SA602AD,602 optimal for space-constrained, production-ready VHF mixer designs requiring integrated LO generation.
Availability
SA602AD,602 is available at Aetrix Electronics and suitable for cellular radio front-ends, portable VHF transceivers, RF data links, instrumentation frequency converters, and broadband LAN receivers requiring stable component supply and long-term manufacturability.
Supply support for SA602AD,602 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 communication markets.
The SA602AD,602 belongs to NXP's legacy RF mixer product line, engineered 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 SA602AD,602?
The SA602AD,602 oscillator operates up to 200 MHz in crystal or tuned-tank configurations, as confirmed in the dynamic characteristics table. Performance above 100 MHz depends on tank Q-factor; a 22 kΩ resistor from OSC_E (pin 7) to ground improves startup reliability at higher frequencies. External LO injection via OSC_B (pin 6) extends usable frequency beyond this limit.
Does the SA602AD,602 require external biasing on its RF input pins?
No, the SA602AD,602 RF inputs (IN_A and IN_B) are internally biased and must not be externally DC-biased. The datasheet explicitly warns against external DC biasing, as it disrupts the internal Gilbert-cell operating point. AC coupling is required only when injecting external signals that carry DC offset.
Can the SA602AD,602 be used with ceramic filters?
Yes, the SA602AD,602 is explicitly designed for use with ceramic filters, as stated in its features and benefits section. Its 1.5 kΩ || 3 pF RF input impedance matches standard 455 kHz ceramic filter terminations, and low external parts count makes it ideal for compact ceramic-filter-based IF stages.
What is the recommended supply voltage range for the SA602AD,602?
The SA602AD,602 operates over a supply voltage range of 4.5 V to 8.0 V, with 6 V being the nominal test condition. Static characteristics specify 4.5 V minimum and 8.0 V maximum; exceeding 8.0 V risks permanent damage per absolute maximum ratings.
How does the SA602AD,602 handle balanced versus single-ended IF outputs?
The SA602AD,602 provides differential IF outputs (OUT_A and OUT_B), each internally terminated to VCC via a 1.5 kΩ resistor. This design supports both single-ended outputs (by terminating one output to ground or 50 Ω) and true balanced outputs (using a center-tapped transformer or differential amplifier), as illustrated in Figure 5 of the datasheet.
SA602AD,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- SA602
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- RF Type:
- Cellular, HF, UHF, VHF
- Frequency:
- 500MHz
- Number of Mixers:
- 1
- Gain:
- 17dB
- Noise Figure:
- 5dB
- Secondary Attributes:
- Up Converter
- Current - Supply:
- 2.4mA
- Voltage - Supply:
- 4.5V ~ 8V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
SA602AD,602 FAQ
1.How can I place an order for SA602AD,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA602AD,602 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 SA602AD,602 reliable?
The price and inventory of SA602AD,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA602AD,602 is usually 5 days.
3.What payment methods are accepted for SA602AD,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA602AD,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA602AD,602?
SA602AD,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA602AD,602 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 SA602AD,602?
For technical support, including SA602AD,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA602AD,602 requirements.
6.How does Aetrix verify that SA602AD,602 is sourced from the original manufacturer or authorized distributors?
All SA602AD,602 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 SA602AD,602 meets industry standards.
7.What is the process for return or replacement of SA602AD,602?
All SA602AD,602 units undergo pre-shipment inspection (PSI). If there is an issue with SA602AD,602, 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 SA602AD,602 part is unused and in its original packaging.
Return procedure for SA602AD,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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