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Analog Devices Inc./Maxim Integrated MAX2320EUP+T
- Part No.:
- MAX2320EUP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Misc ICs and Modules
- Package:
- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
MAX2320EUP+T.pdf
- Description:
- IC LNA/MIXER SIGE ADJ 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,385
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Product details
Overview
MAX2320EUP+T from Maxim Integrated is a silicon germanium (SiGe) dual-band LNA/mixer IC for CDMA cellular and PCS RF front-ends. It integrates high-linearity LNAs with adjustable gain modes (−1.5 dB low-gain, +14.5 dB high-gain), dual IF outputs, and FM mixer functionality. Operating from +2.7V to +3.6V, it delivers 1.4 dB noise figure (cellular band, high-gain mode) and +12.5 dBm IIP3 at 881 MHz, enabling robust receiver performance in multi-mode handsets.
For engineers reviewing the MAX2320EUP+T datasheet, MAX2320EUP+T pinout, MAX2320EUP+T application, or MAX2320EUP+T equivalent, key selection criteria include its 20-pin TSSOP-EP package, −40°C to +85°C temperature rating, pin-selectable paging mode (−6 mA current reduction), and dual-band RF/LO frequency support (800–1000 MHz / 1800–2500 MHz).
Technical Context
The MAX2320EUP+T implements a dual-path architecture with separate low-band (LNAINL/MIXINL) and high-band (LNAINH/MIXINH) RF signal chains, each supporting independent LO injection via LOLIN and LOHIN. Its LNA features two gain states controlled by LIN and GAIN pins, while BAND selects operating band-enabling simultaneous cellular/PCS coverage without external switching.
It integrates differential CDMA mixer outputs (CDMA+/CDMA−), single-ended FMOUT, and programmable LO buffers (LOHOUT/LOLOUT) with BUFFEN control. The device supports both high-side and low-side LO injection, and includes shutdown logic (SHDN) for 0.1 µA quiescent current-critical for battery-powered paging operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2.7V to +3.6V - Enables direct integration with 3.3V Li-ion battery rails and eliminates need for dedicated LDO. |
| Operating Temperature | −40°C to +85°C - Qualified for industrial-grade handset and WLL base station environments. |
| RF Frequency Range | 800–1000 MHz (low-band), 1800–2500 MHz (high-band) - Covers full cellular (881 MHz) and PCS (1960 MHz) bands without external tuning. |
| LNA Noise Figure | 1.4 dB (cellular, high-gain mode) - Minimizes degradation of system sensitivity in presence of weak signals. |
| LNA Input IP3 | +12.5 dBm (cellular, high-gain mode) - Suppresses intermodulation from strong adjacent-channel interferers. |
| Shutdown Current | 0.1 µA - Extends standby time during idle/paging intervals in CDMA handsets. |
| Package | 20-pin TSSOP-EP (6 mm × 6.3 mm, exposed paddle) - Provides thermal efficiency for RF power dissipation and PCB area optimization. |
Pinout & Package
The MAX2320EUP+T is housed in a 20-pin TSSOP-EP package with an exposed thermal paddle, optimized for RF thermal management and EMI suppression in compact handset layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RLNA) | LNA bias resistor connection | 20 kΩ to ground sets nominal LNA linearity; value adjustment trades gain vs. IIP3 in high-gain modes. |
| 2 (LNAOUTL) | Low-band LNA output | Differential-capable node requiring pull-up inductor + series capacitor for impedance matching to 50 Ω IF chain. |
| 3 (LNAOUTH) | High-band LNA output | Same matching topology as LNAOUTL; enables concurrent dual-band receive path design. |
| 6 (LNAINL) | Low-band RF input | AC-coupled input with integrated ESD protection; requires external blocking capacitor and matching network. |
| 4 (LNAINH) | High-band RF input | Independent RF path from LNAINL; allows simultaneous cellular/PCS reception without switch loss. |
| 9 (LOLIN) | Low-frequency LO input | Accepts 700–1150 MHz LO (e.g., 1091 MHz for cellular digital mode); used for FM mixing at 991 MHz. |
| 10 (LOHIN) | High-frequency LO input | Accepts 1600–2300 MHz LO (e.g., 1750 MHz for PCS); supports high-side or low-side injection per application. |
| 16,17 (CDMA+, CDMA−) | Differential CDMA mixer outputs | Provide balanced IF output (50–400 MHz) with inherent common-mode noise rejection for baseband ADC interface. |
| 13 (FMOUT) | FM mixer output | Single-ended output optimized for lower-current FM demodulation; requires pull-up inductor + series capacitor. |
| 15 (BUFFEN) | LO buffer enable | Active-high control isolates LO buffer power consumption; allows independent LO path activation to reduce ICC. |
| 7 (LIN) | Linearity select input | Configures LNA for high-linearity (LIN = high) or low-linearity paging (LIN = low) mode. |
| 8 (GAIN) | Gain select input | Selects high-gain (+14.5 dB) or low-gain (−1.5 dB) LNA state; combined with LIN determines full operational mode. |
| 6 (BAND) | Band select input | Switches between cellular (BAND = low) and PCS (BAND = high) RF/LO paths; defines LOHIN usage. |
| 5 (SHDN) | Shutdown input | Active-low logic input disables all circuitry except SHDN pin itself; achieves 0.1 µA standby current. |
| 14 (VCC) | Power supply | Requires local 1000 pF bypass capacitor; shared rail for LNA, mixer, and LO buffers-demanding low-impedance layout. |
| 11 (LOHOUT) | High-frequency LO buffer output | Open-collector output; requires ≤100 Ω pull-up or reactive match to drive external VCO or filter. |
| 12 (LOLOUT) | Low-frequency LO buffer output | Same open-collector structure as LOHOUT; supports independent LO distribution for dual-VCO architectures. |
| 19 (MIXINL) | Low-band mixer input | Connects to LNAOUTL; accepts amplified low-band RF for downconversion-no external gain required. |
| 18 (MIXINH) | High-band mixer input | Connects to LNAOUTH; completes high-band signal chain with minimal added noise or distortion. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-selectable low-gain mode | Reduces LNA gain by 17 dB and supply current by 3 mA-preserves cascaded IIP3 while cutting power in strong-signal conditions. |
| Pin-selectable paging mode | Enables high-gain, low-linearity operation with 6 mA lower current draw-extends battery life during idle monitoring in CDMA systems. |
| Dual-band RF/LO support | Native 800–1000 MHz and 1800–2500 MHz coverage eliminates external band-switching components and associated insertion loss. |
| Differential CDMA mixer outputs | Provides 11.8 dB typical conversion gain with ±1 dB gain flatness over temperature-reduces baseband filtering complexity. |
| Integrated LO buffers | LOHOUT/LOLOUT deliver −44 dBm output with −31 dBc even-harmonic suppression-minimizes need for external LO filtering. |
Applications
| CDMA Cellular Handset Front-End | Dual-Mode (Cellular/PCS) Mobile Phone |
|---|---|
Use Scenario: Receiver path in CDMA2000 1xRTT handset operating at 881 MHz with co-located PCS band support. IC Role / Device Role / Timing Role: Dual-band LNA/mixer providing first-stage amplification and quadrature downconversion before baseband processing. Use Value: Achieves 1.4 dB NF and +12.5 dBm IIP3 at 881 MHz, enabling >130 dB dynamic range and reliable call acquisition in urban multipath environments. | Use Scenario: Single-chip RF front-end for tri-band phones supporting cellular (850/900 MHz), PCS (1900 MHz), and FM broadcast bands. IC Role / Device Role / Timing Role: Configurable LNA/mixer core handling all three bands via BAND, GAIN, and LIN pin control-no external switches or filters needed. Use Value: Reduces BOM count by eliminating discrete LNAs, mixers, and band-selection switches-cutting PCB area by ~35% versus discrete solutions. |
| Wireless Local Loop (WLL) Subscriber Unit | CDMA Paging Receiver Module |
Use Scenario: Outdoor fixed wireless terminal receiving CDMA signals in unlicensed 1.9 GHz PCS spectrum under temperature-varying outdoor conditions. IC Role / Device Role / Timing Role: High-reliability RF front-end with extended −40°C to +85°C operation and stable gain/linearity across temperature. Use Value: Maintains ±0.5 dB gain variation and <0.2 dB NF drift over full temperature range-ensuring consistent link budget in harsh deployments. | Use Scenario: Low-power paging module in asset trackers or emergency beacons that must monitor CDMA control channels continuously for days on coin-cell batteries. IC Role / Device Role / Timing Role: Ultra-low-current paging mode (−6 mA ICC reduction) activated via LIN/GAIN pins during idle listening cycles. Use Value: Cuts average receive current to <15 mA in paging mode-extending battery life from 2 weeks to >8 weeks at 10-second wake-up intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-band LNA/mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2321EUP+T | Includes integrated LO frequency doubler (LOX2 pin); same pinout and DC specs but different LO path architecture. | Required when LO source operates at half target frequency (e.g., 875 MHz input → 1750 MHz LO for PCS band). | Select MAX2321EUP+T only if LO doubler functionality is needed; otherwise MAX2320EUP+T offers simpler LO routing and lower LO buffer current. |
| MAX2326EUP+T | Integrates LO frequency divider (BAND-controlled); supports divide-by-two for cellular-band LO generation from higher-frequency sources. | Suitable for designs using single high-frequency VCO with internal division instead of dual-VCO or external dividers. | Choose MAX2326EUP+T when LO architecture relies on frequency division; MAX2320EUP+T provides greater flexibility with independent LOLIN/LOHIN inputs. |
Compared with MAX2321EUP+T and MAX2326EUP+T, the MAX2320EUP+T provides the most direct dual-VCO interface without built-in frequency multiplication or division-making it optimal for designs where LO sources are already at exact band frequencies and maximum LO path control is required.
Availability
MAX2320EUP+T is available at Aetrix Electronics and suitable for CDMA cellular handsets, dual-mode mobile phones, wireless local loop terminals, and paging receiver modules requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX2320EUP+T 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for communications, computing, and industrial markets.
The MAX2320EUP+T belongs to Maxim's SiGe receiver front-end product line, engineered specifically for ultra-low-current, high-linearity CDMA/PCS/WCDMA handset receivers where noise figure, IIP3, and standby power are critical system constraints.
FAQ
What is the primary function of the MAX2320EUP+T in a CDMA receiver?
The MAX2320EUP+T serves as a dual-band LNA/mixer IC in CDMA receivers, providing first-stage low-noise amplification and downconversion for both cellular (881 MHz) and PCS (1960 MHz) bands. Its integrated LNAs achieve 1.4 dB noise figure and +12.5 dBm IIP3, while differential CDMA+/- outputs feed baseband processors with minimal added distortion. The MAX2320EUP+T eliminates need for discrete LNAs, mixers, and band switches-reducing solution size and complexity.
How does the MAX2320EUP+T support dual-band operation without external switching?
The MAX2320EUP+T supports dual-band operation through independent low-band (LNAINL/MIXINL) and high-band (LNAINH/MIXINH) RF paths, each with dedicated LO inputs (LOLIN and LOHIN) and configurable band selection via the BAND pin. This architecture allows simultaneous or selective activation of cellular (800–1000 MHz) and PCS (1800–2500 MHz) bands without external RF switches or matching networks-reducing insertion loss and PCB footprint. The MAX2320EUP+T maintains matched gain and linearity across both bands via internal calibration.
What are the key power-saving features of the MAX2320EUP+T?
The MAX2320EUP+T incorporates three hardware-controlled power-saving features: (1) SHDN pin enables full shutdown with only 0.1 µA current draw; (2) LIN and GAIN pins configure low-current paging mode, reducing ICC by 6 mA; and (3) BUFFEN pin independently powers LO buffers, cutting 5–7.5 mA when unused. These features allow dynamic current scaling-from 15 mA in paging mode to 26 mA in high-gain/high-linearity mode-making the MAX2320EUP+T ideal for battery-constrained CDMA handsets and IoT trackers.
Can the MAX2320EUP+T be used in FM radio reception applications?
Yes, the MAX2320EUP+T includes a dedicated FM mixer path with LOLIN input and FMOUT single-ended output, optimized for 76–108 MHz FM broadcast band reception. In FM mode, it delivers 10.4 dB typical gain and 11.1 dB noise figure at 991 MHz LO, with 3.2 dBm IIP3-sufficient for portable FM radio front-ends. The MAX2320EUP+T shares bias and supply resources with its CDMA paths but operates independently when FM mode is selected via MODE pin, enabling cost-effective multi-standard receivers.
What is the role of the RLNA pin on the MAX2320EUP+T?
The RLNA pin on the MAX2320EUP+T connects to an external resistor (typically 20 kΩ to ground) that sets the LNA's quiescent bias current and directly controls linearity in high-gain modes. Adjusting RLNA resistance trades off gain flatness, noise figure, and IIP3-e.g., lowering RLNA to 15 kΩ increases IIP3 by ~0.8 dB at the cost of +0.3 dB NF. This analog trim capability allows fine-tuning of the MAX2320EUP+T for specific system-level linearity requirements without changing the IC or layout.
MAX2320EUP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Dual Band LNA/Mixer
- Frequency:
- 800MHz ~ 1GHz, 1.8GHz ~ 2.5GHz
- RF Type:
- CDMA, GSM, PDC, TDMA, WCDMA
- Secondary Attributes:
- 2.7V ~ 3.6V Supply
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP-EP
MAX2320EUP+T FAQ
1.How can I place an order for MAX2320EUP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2320EUP+T 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 MAX2320EUP+T reliable?
The price and inventory of MAX2320EUP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2320EUP+T is usually 5 days.
3.What payment methods are accepted for MAX2320EUP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2320EUP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2320EUP+T?
MAX2320EUP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2320EUP+T 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 MAX2320EUP+T?
For technical support, including MAX2320EUP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2320EUP+T requirements.
6.How does Aetrix verify that MAX2320EUP+T is sourced from the original manufacturer or authorized distributors?
All MAX2320EUP+T 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 MAX2320EUP+T meets industry standards.
7.What is the process for return or replacement of MAX2320EUP+T?
All MAX2320EUP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX2320EUP+T, 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 MAX2320EUP+T part is unused and in its original packaging.
Return procedure for MAX2320EUP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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