My Inquiry
My Account
NXP Semiconductors SA58641DK,112
- Part No.:
- SA58641DK,112
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Mixers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SA58641DK,112.pdf
- Description:
- IC MIXER 500MHZ UP CONVRT 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,878
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA58641DK,112 from NXP Semiconductors is a monolithic FM IF system integrating mixer/oscillator, dual limiting IF amplifiers, quadrature detector, temperature-compensated logarithmic RSSI, voltage regulator, wideband data output, and fast RSSI op amps. It operates down to 3 V, delivers 92 dB IF/limiter gain, supports >500 MHz RF input, and enables DECT/FSK/ASK demodulation with 600 kHz minimum data bandwidth.
For engineers reviewing the SA58641DK,112 datasheet, SA58641DK,112 pinout, SA58641DK,112 application, or SA58641DK,112 equivalent, this page provides verified circuit role (FM IF signal processor), supply range (3–5.5 V), RSSI dynamic range (>90 dB), data bandwidth (≥600 kHz), and power-down current (200 µA) - all critical for portable communications receiver design.
Technical Context
The SA58641DK,112 implements a single-conversion architecture with internal Gilbert cell mixer and oscillator supporting up to 1 GHz LO injection (LC tank) or 150 MHz crystal operation. Its IF section features 330 Ω impedance-matched stages optimized for 10.7 MHz ceramic filters and includes dedicated decoupling pins per amplifier stage.
Quadrature detection uses internally generated IF and externally AC-coupled 90°-shifted IF to drive a Gilbert cell multiplier. The RSSI path employs a temperature-compensated log amplifier followed by a rail-to-rail op amp with feedback pin (RSSI_FEEDBACK) enabling external gain adjustment or filtering without redesigning the core signal chain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0–5.5 V - supports battery-powered portable systems including DECT handsets and cellular receivers. |
| RSSI Dynamic Range | >90 dB - enables accurate signal strength measurement across weak and strong RF conditions in cellular and cordless telephony. |
| Data Output Bandwidth | ≥600 kHz - sufficient for wideband FSK/ASK demodulation in DECT (1.88–1.90 GHz band) and wireless LAN applications. |
| Mixer Noise Figure | 12 dB at 240 MHz - ensures high sensitivity in VHF/UHF receivers; measured with 50 Ω source and matched input. |
| IF Amplifier Gain | 38 dB - fixed gain stage optimized for 330 Ω source impedance, eliminating need for external matching networks with standard 10.7 MHz filters. |
| Limiter Gain | 54 dB - provides robust amplitude limiting before quadrature detection, maintaining constant IF level over wide input dynamic range. |
| Power-Down Current | 200 µA - reduces standby power in battery-operated devices; activated by LOW on POWER_DOWN_CTRL (pin 8). |
Pinout & Package
SA58641DK,112 is housed in a 20-lead SSOP (Shrink Small Outline Package), SOT266-1 variant, with 4.4 mm body width and 0.65 mm lead pitch. The package is RoHS-compliant and reflow-solderable per J-STD-020C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RF_IN (1) | RF input terminal | Single-ended 700 Ω input for VHF/UHF signals up to 500 MHz; requires external decoupling via RF_IN_DECOUPL (pin 2). |
| OSC_OUT (3) / OSC_IN (4) | Oscillator interface | Supports crystal (≤150 MHz) or LC tank (≤1 GHz) configurations; OSC_OUT is emitter output, OSC_IN is base input for Hartley/Colpitts/Butler topologies. |
| VCC (5) / GND (15) | Power supply terminals | 3.0–5.5 V operation; internal voltage regulator supplies bias to analog blocks; GND is common reference for all sections. |
| RSSI_FEEDBACK (6) / RSSI_OUT (7) | RSSI amplifier interface | Rail-to-rail op amp output with negative feedback pin enabling external gain setting or low-pass filtering without loading the log core. |
| POWER_DOWN_CTRL (8) | Power management control | CMOS/TTL-compatible active-HIGH logic input; pulls ICC to 200 µA when LOW, with 10 µA max input leakage. |
| DATA_OUT (9) | Demodulated data output | DC-coupled voltage output with ≥600 kHz bandwidth; designed for direct connection to digital baseband processors in DECT/FSK systems. |
| QUADRATURE_IN (10) | Quadrature phase input | Accepts externally phase-shifted IF signal (90° lag) for coherent quadrature detection; matches internal IF path for zero-IF error correction. |
| LIMITER_OUT (11) / LIMITER_IN (14) | Limiter amplifier I/O | 330 Ω input/output impedance; dual decoupling pins (12,13) stabilize limiter stage under high-gain, high-frequency operation. |
| IF_AMP_OUT (16) / IF_AMP_IN (18) | IF amplifier I/O | 330 Ω impedance-matched ports; two decoupling pins (17,19) ensure stability across 40 MHz IF bandwidth and prevent oscillation in compact layouts. |
| MIXER_OUT (20) | Mixer output | 330 Ω output resistance; directly interfaces with 10.7 MHz ceramic filters or external IF selectivity networks without series matching. |
Key Features
| Feature | Design Value |
|---|---|
| Wideband data output | ≥600 kHz bandwidth enables reliable demodulation of DECT's 1.152 Mbps FSK data stream without external post-filtering. |
| Temperature-compensated RSSI | ±2.0 dB variation over −40 °C to +85 °C ensures stable signal strength reporting in outdoor or automotive portable radios. |
| Low external component count | 330 Ω impedance matching eliminates discrete resistors for 10.7 MHz ceramic filters, reducing BOM cost and PCB area in handheld designs. |
| High-speed RSSI response | 1.1 µs rise time and 2.0 µs fall time (at −56 dBm RF) support fast AGC loops and burst-mode communication protocols. |
| ESD-hardened design | HBM rating ≥2 kV allows direct handling in manufacturing without special ESD precautions, improving yield in high-volume assembly. |
Applications
| DECT Handset Receiver | Digital Cordless Base Station |
|---|---|
Use Scenario: Receives 1.88–1.90 GHz DECT carrier modulated with 1.152 Mbps FSK data in residential cordless telephone handsets. IC Role / Device Role / Timing Role: Single-conversion FM IF processor performing mixing, limiting, quadrature detection, and RSSI generation. Use Value: 600 kHz data bandwidth and 90+ dB RSSI range enable full-rate packet decoding and adaptive channel selection in interference-prone home environments. | Use Scenario: Processes uplink signals from multiple DECT handsets in base station front-end with simultaneous channel monitoring. IC Role / Device Role / Timing Role: High-linearity IF subsystem delivering stable IF output and calibrated RSSI for multi-channel digital signal processors. Use Value: 54 dB limiter gain and 38 dB IF gain maintain SNR across varying handset distances; RSSI_FEEDBACK pin allows centralized AGC calibration. |
| Portable VHF/UHF Scanner | FSK Data Link Receiver |
Use Scenario: Wideband scanning receiver covering 30–512 MHz public safety bands with FM demodulation and signal strength indication. IC Role / Device Role / Timing Role: Core IF processing block converting RF to baseband audio/data while providing real-time RSSI for frequency-hopping decisions. Use Value: Mixer NF of 12 dB at 240 MHz and >500 MHz RF input capability ensure usable sensitivity across entire VHF/UHF range without external LNA. | Use Scenario: Industrial telemetry receiver decoding 1200–9600 bps FSK signals from remote sensors in factory automation networks. IC Role / Device Role / Timing Role: FM demodulator with integrated data output and RSSI for link quality assessment and automatic retransmission triggering. Use Value: DATA_OUT voltage output drives microcontroller ADC directly; RSSI_OUT provides 0.2–2.3 V range correlating to −10 to −90 dBm IF levels for precise link margin analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FM IF processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SA605D/01,112 | Lower IF gain (70 dB vs. 92 dB); no integrated RSSI op amp; 16-pin SO package; lacks POWER_DOWN_CTRL. | Targeted at narrowband FM voice receivers only; unsuitable for wideband data demodulation or low-power portable use. | Select SA58641DK,112 when RSSI accuracy, data bandwidth, or power-down capability is required. |
| NE612DR2G | No limiter or quadrature detector; basic double-balanced mixer only; no RSSI or data output; 8-pin SOIC. | Requires external IF amplification, limiting, and demodulation circuitry - increases BOM, layout complexity, and power consumption. | Choose SA58641DK,112 for fully integrated IF solution reducing design cycle time and board space in portable comms. |
Compared with SA605D/01,112 and NE612DR2G, SA58641DK,112 delivers higher integration (mixer + dual limiters + quad detector + RSSI + data output), wider data bandwidth (≥600 kHz vs. none), and active power management - making it uniquely suited for modern DECT, FSK, and portable scanner designs where size, power, and performance are co-constrained.
Availability
SA58641DK,112 is available at Aetrix Electronics and suitable for DECT handsets, digital cordless telephones, and portable VHF/UHF communications receivers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for SA58641DK,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 semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in RF and mixed-signal IC design.
The SA58641DK,112 belongs to NXP's legacy high-performance FM IF processor family, engineered specifically for battery-powered portable communications equipment demanding low power, wide dynamic range, and minimal external components.
FAQ
What is the minimum supply voltage required for stable operation of the SA58641DK,112?
The SA58641DK,112 operates stably down to 3.0 V, enabling direct integration into single-cell Li-ion (3.0–4.2 V) or triple-cell NiMH (3.6 V nominal) portable systems without external regulation. At 3 V, key parameters including RSSI linearity, data bandwidth, and mixer conversion gain remain within datasheet specifications, as verified across −40 °C to +85 °C ambient range.
How does the RSSI_FEEDBACK pin (pin 6) function in the SA58641DK,112?
The RSSI_FEEDBACK pin on the SA58641DK,112 provides access to the internal op amp's inverting input, allowing designers to configure external gain (via resistor divider), add low-pass filtering (with RC network), or implement second-order temperature compensation. This pin enables precise calibration of RSSI output voltage versus input RF level without modifying the core logarithmic amplifier, preserving its >90 dB dynamic range and ±2.0 dB thermal stability.
Can the SA58641DK,112 be used with a 9.8 MHz IF for DECT applications?
Yes, the SA58641DK,112 supports 9.8 MHz IF operation as confirmed in Table 8 of the datasheet, where DECT-specific test results show 13 dB mixer gain, 12 dB noise figure, and 700 kHz data bandwidth at 110.592 MHz RF / 9.8 MHz IF. The 330 Ω IF/limiter impedance and 25 MHz small-signal bandwidth ensure stable performance with standard 9.8 MHz ceramic filters without additional matching components.
What is the typical supply current of the SA58641DK,112 at 5 V and room temperature?
The SA58641DK,112 draws 7.5 mA typical supply current at VCC = 5 V and Tamb = 25 °C, as specified in Table 6 (Static Characteristics). This value includes full operation of mixer, IF amplifiers, limiter, quadrature detector, RSSI, and data output circuits. Current remains stable across temperature (see Fig 3), increasing only marginally to ~8.5 mA at +85 °C.
Is the SA58641DK,112 pin-compatible with earlier SA586xx variants?
No, the SA58641DK,112 is not pin-compatible with other SA586xx variants such as SA58640 or SA58642. Pin assignments differ significantly - for example, SA58641DK,112 places RSSI_FEEDBACK on pin 6 and POWER_DOWN_CTRL on pin 8, whereas SA58640 uses pin 6 for IF_AMP_DECOUPL and lacks a dedicated power-down control. Layout reuse is not possible without schematic and footprint revision.
SA58641DK,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- SA58641
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- RF Type:
- Cellular, ASK, DECT, FSK, UHF, VHF
- Frequency:
- 500MHz
- Number of Mixers:
- 2
- Gain:
- 11dB
- Noise Figure:
- 12dB
- Secondary Attributes:
- Up Converter
- Current - Supply:
- 8.5mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
SA58641DK,112 FAQ
1.How can I place an order for SA58641DK,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58641DK,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 SA58641DK,112 reliable?
The price and inventory of SA58641DK,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA58641DK,112 is usually 5 days.
3.What payment methods are accepted for SA58641DK,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58641DK,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58641DK,112?
SA58641DK,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58641DK,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 SA58641DK,112?
For technical support, including SA58641DK,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58641DK,112 requirements.
6.How does Aetrix verify that SA58641DK,112 is sourced from the original manufacturer or authorized distributors?
All SA58641DK,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 SA58641DK,112 meets industry standards.
7.What is the process for return or replacement of SA58641DK,112?
All SA58641DK,112 units undergo pre-shipment inspection (PSI). If there is an issue with SA58641DK,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 SA58641DK,112 part is unused and in its original packaging.
Return procedure for SA58641DK,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA58641DK,112 Tags
-
MAX2671EUT+T
Analog Devices Inc./Maxim Integrated
-
ADEX-10+
Mini-Circuits
-
ADE-2+
Mini-Circuits
-
ADE-1+
Mini-Circuits
-
LT5560EDD#PBF
Analog Devices Inc.
-
LT5560EDD#TRPBF
Analog Devices Inc.
-
LTC5562IUC#TRPBF
Analog Devices Inc.
-
MAX2681EUT+T
Analog Devices Inc./Maxim Integrated
-
ADE-1ASK+
Mini-Circuits
-
ADE-1L+
Mini-Circuits
-
ADL5350ACPZ-R7
Analog Devices Inc.
-
AD608ARZ-RL
Analog Devices Inc.
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…
