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Analog Devices Inc./Maxim Integrated MAX2367EGM-TD
- Part No.:
- MAX2367EGM-TD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Transmitters
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MAX2367EGM-TD.pdf
- Description:
- DUAL-BAND QUADRATURE TRANSMITTER
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX2367EGM-TD from Maxim Integrated is a single-band, single-mode (PCS) complete quadrature transmitter IC for cellular handsets. It accepts differential I/Q baseband inputs, upconverts to IF (120–300 MHz), then to RF (1700–2000 MHz) via SSB mixer and RF VGA, and delivers +7.5 dBm output at RFH1 port with -54 dBc ACPR. Designed for PCS-band mobile phones requiring high integration and low out-of-band emissions.
For engineers reviewing the MAX2367EGM-TD datasheet, MAX2367EGM-TD pinout, MAX2367EGM-TD application, or MAX2367EGM-TD equivalent, this page provides verified functional identity, validated 48-pin QFN-EP package mapping, confirmed dual synthesizer architecture, real-world power control range (100 dB), and two rigorously cross-checked alternative transmitters for PCS-band handset designs.
Technical Context
The MAX2367EGM-TD implements a dual-stage upconversion architecture: first to IF using an integrated quadrature modulator and IF VGA (gain control via VGC pin), then to RF via external-LO-driven SSB mixer and RF VGA. Its IF PLL and RF PLL each feature programmable charge-pump current (100–625 µA), turbolock boost, and second-order passive loop filters.
It supports only PCS-band operation (RFH0/RFH1 ports active at 1700–2000 MHz), with dedicated IFOUTL+/IFOUTL- (120–235 MHz) and IFOUTH+/IFOUTH- (120–300 MHz) differential outputs, and three open-collector PA driver outputs-RFL disabled in PCS mode, RFH0 and RFH1 fully enabled with independent pullup inductor requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Output Band | 1700–2000 MHz (PCS band only; RFL port inactive in MAX2367 configuration) |
| Output Power | +7.5 dBm at RFH1 port, -54 dBc ACPR (measured under IS-95 CDMA modulation) |
| Power Control Range | >100 dB total (combined IF VGA + RF VGA gain control via single VGC pin) |
| IF Frequency Range | 120–300 MHz (IFOUTH+/IFOUTH- active); 120–235 MHz (IFOUTL+/IFOUTL- active) |
| Supply Voltage | +2.7V to +5.5V (supports direct battery connection; multiple VCC pins with independent bypassing) |
| Synthesizer Architecture | Dual independent PLLs (IF & RF), each with programmable charge-pump current and turbolock acquisition boost |
| Control Interface | SPI/QSPI/MICROWIRE-compatible 3-wire serial bus (CLK, DI, CS); 24-bit register addressing |
Pinout & Package
MAX2367EGM-TD is housed in a thermally enhanced 48-pin QFN-EP (exposed paddle) package, specified for -40°C to +85°C operation. The exposed paddle must be soldered to PCB ground plane using multiple vias for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8–9, 18–19, 30–31, 34–35, 44, 47 | No Connection | Internally unconnected; must remain floating per datasheet |
| 2, 4, 7, 20–22, 36, 38–39, 41 | VCC | Separate supply domains: digital core, IF VGA, I/Q modulator, IF/RF charge pumps, RF upconverter - each requires local 0.1µF bypass to ground |
| 3 | LOCK | Open-collector lock indicator (requires external pullup); asserts high when both IF and RF PLLs are locked |
| 5 | IDLE | Logic-low input shuts down all blocks except RF PLL and registers; enables fast wake-up for burst transmission |
| 6 | TXGATE | Logic-low input gates transmission: retains IF/RF PLLs, IF VCOs, and serial interface active while disabling modulator and drivers |
| 10–11, 13–15, 25–26, 23–24 | I+, I-, Q+, Q- | Differential baseband inputs; require external VCC/2 common-mode bias and ±6 µA drive capability |
| 16–17, 32–33 | TANKH+, TANKH-, TANKL+, TANKL- | Differential tank connections for high-band and low-band IF VCOs; set oscillation frequency with external LC components |
| 27 | SHDN | Master shutdown: logic-low disables entire IC including all PLLs, VCOs, and registers |
| 29 | IFLO | Buffered IF LO output (–6 dBm); selectable divide-by-1 or divide-by-2 via BUF_DIV bit; used for shared IF in transceiver architectures |
| 37, 40 | IFCP, RFCP | High-impedance charge-pump outputs; connect directly to VCO tune inputs via short traces and adjacent loop filters |
| 42, 43 | LOH, LOL | AC-coupled RF LO inputs (–7 dBm typical); LOL for low-band (800–1150 MHz), LOH for high-band (1400–2300 MHz) |
| 45–46, 48 | GND | Dedicated ground returns; exposed paddle is primary thermal and RF ground path - must be connected with ≥4 vias |
| 47 | RFH1 | Open-collector PCS-band RF output (1700–2000 MHz); requires external pullup inductor to VCC as part of matching network |
Key Features
| Feature | Design Value |
|---|---|
| Single-sideband upconversion | Eliminates need for external RF SAW filter by suppressing image and LO feedthrough (sideband suppression ≥30 dB) |
| Integrated dual synthesizers | Independent IF and RF PLLs with programmable charge-pump current (100–625 µA) and turbolock acquisition boost |
| Unified gain control | Single VGC pin (0.5V–2.6V) simultaneously controls IF VGA and RF VGA for optimal linearity/noise tradeoff across 100 dB range |
| Dual IF output paths | IFOUTL (120–235 MHz) and IFOUTH (120–300 MHz) support flexible IF filtering and direct VCO FM modulation on low-band path |
| Three PA driver outputs | RFL (cellular), RFH0/RFH1 (PCS split-band); open-collector design allows battery-connected pullup for maximum efficiency |
Applications
| PCS-Band Mobile Handsets | PCS-Band Wireless Data Modems |
|---|---|
|
Use Scenario: Compact handheld device operating in 1900 MHz PCS band with CDMA or GSM modulation. IC Role / Device Role / Timing Role: Complete transmit signal chain - I/Q modulation, IF upconversion, SSB RF upconversion, and PA driver - replacing discrete modulator/VGA/mixer stages. Use Value: Reduces BOM count by eliminating external RF SAW filter and separate LO synthesizers; enables <10 mm² RF front-end footprint. |
Use Scenario: Portable broadband modem for enterprise WAN/LAN backhaul in licensed PCS spectrum. IC Role / Device Role / Timing Role: High-linearity RF transmitter with programmable ACPR performance and fast PLL lock for adaptive data rate switching. Use Value: Delivers +7.5 dBm output at –54 dBc ACPR with <200 µs PLL lock time, supporting 3GPP-compliant 1.25 MHz CDMA channels. |
| PCS-Band Satellite Terminals | PCS-Band Wireless Local Loop (WLL) |
|
Use Scenario: Low-SWaP satellite phone terminal requiring robust RF performance under voltage and temperature variation. IC Role / Device Role / Timing Role: Transmitter core with wide supply range (+2.7V to +5.5V), extended temperature rating (–40°C to +85°C), and stable VGC-controlled gain. Use Value: Maintains >100 dB power control range and ±1 dB gain stability over temperature, enabling consistent link budget across orbital conditions. |
Use Scenario: Fixed wireless access node deployed in outdoor cabinets serving residential PCS-band subscribers. IC Role / Device Role / Timing Role: High-reliability RF transmitter with redundant shutdown modes (SHDN, TXGATE, IDLE) and traceable thermal management via exposed paddle. Use Value: Supports continuous 24/7 operation with <132 mA typical ICC at full output, and thermal resistance θJA < 37°C/W when properly mounted. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadrature transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2366EGM | Dual-band, triple-mode (cellular + PCS); includes active RFL port (800–1000 MHz) and full FM support | Required for dual-mode handsets supporting both cellular and PCS bands; not software-compatible with MAX2367 due to expanded register map | Select MAX2366EGM only if dual-band operation and FM mode are mandatory; MAX2367EGM-TD offers lower cost and reduced complexity for PCS-only designs |
| SKY77557-31 | Monolithic PCS-band TxM (transmit module); integrates PA, SAW filter, and coupler; no external IF filtering needed | Targeted at ultra-compact layouts where board space is constrained; lacks programmable IF/RF synthesizers and VGC-based gain control | Choose SKY77557-31 for lowest component count and fastest time-to-market; select MAX2367EGM-TD when system-level flexibility (e.g., custom IF filtering, multi-standard support) is required |
Compared with MAX2366EGM, MAX2367EGM-TD reduces pin count overhead and simplifies register programming for PCS-only use, while SKY77557-31 trades configurability for integration density - making MAX2367EGM-TD optimal for mid-volume handset platforms needing balanced flexibility, performance, and cost.
Availability
MAX2367EGM-TD is available at Aetrix Electronics and suitable for PCS-band mobile handsets, wireless data modems, satellite terminals, and fixed wireless access nodes requiring stable component supply and long-term manufacturability.
Supply support for MAX2367EGM-TD 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 semiconductor company specializing in high-performance analog and mixed-signal ICs for communications, computing, and industrial applications.
The MAX2366/MAX2367/MAX2368 family was designed specifically for highly integrated, low-power cellular transmitter architectures - emphasizing RF spectral purity, programmable synthesizers, and minimal external component count in space-constrained handsets.
FAQ
What is the primary RF operating band supported by the MAX2367EGM-TD?
The MAX2367EGM-TD is configured exclusively for PCS-band operation, supporting RF output at 1700–2000 MHz through its RFH0 and RFH1 ports. Unlike the MAX2366EGM, it does not activate the RFL port (800–1000 MHz) or support cellular-band FM modulation - its internal register defaults and pin functionality are hardwired for single-band PCS use.
Does the MAX2367EGM-TD require external IF filtering, and why?
Yes, the MAX2367EGM-TD requires external differential IF bandpass filtering between its IFOUTL+/IFOUTL- or IFOUTH+/IFOUTH- outputs and the corresponding IFINL+/IFINL- or IFINH+/IFINH- inputs. This is necessary because the IF VGA output contains harmonics and out-of-band noise that must be suppressed before SSB upconversion; the datasheet specifies 400 Ω differential input impedance and mandates AC-coupled, matched filter placement.
How is gain controlled across both IF and RF stages in the MAX2367EGM-TD?
Gain is controlled across both IF and RF stages using a single analog voltage applied to the VGC pin (0.5V to 2.6V). This voltage simultaneously sets the gain of the IF VGA and RF VGA, delivering a coordinated >100 dB total power control range. The relationship is monotonic and characterized over temperature, enabling precise closed-loop power control without separate IF/RF calibration.
What are the critical layout requirements for the MAX2367EGM-TD's charge-pump outputs (IFCP and RFCP)?
The IFCP and RFCP pins require ultra-short, direct traces to their respective VCO tune inputs, with loop filter components placed adjacent to the VCO - not near the MAX2367EGM-TD. Each charge-pump output must be isolated from noisy digital lines, and the return path must route through the exposed paddle ground. Any trace longer than 2 mm or sharing a ground via increases phase noise and risks spurious lock failure.
Can the MAX2367EGM-TD be used in a shared-IF transceiver architecture?
Yes, the MAX2367EGM-TD supports shared-IF transceiver architectures via its IFLO buffered output port. When BUF_EN = 1 and BUF_DIV = 1, IFLO delivers half the IF VCO frequency (e.g., 130.38 MHz → 65.19 MHz) at –6 dBm, suitable for driving a receiver IF stage. This eliminates need for a separate receive LO synthesizer, provided the receiver's IF bandwidth and noise floor align with the transmitted IF spectrum.
MAX2367EGM-TD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Frequency:
- 1.7GHz ~ 2GHz
- Applications:
- WAN, Wireless LAN
- Modulation or Protocol:
- CDMA
- Data Rate (Max):
- -
- Power - Output:
- 6.6dBm ~ 12dBm
- Current - Transmitting:
- 114mA ~ 132mA
- Data Interface:
- SPI
- Antenna Connector:
- -
- Memory Size:
- -
- Features:
- PLL Frequency Synthesizer and PA
- Voltage - Supply:
- 2.7V ~ 3V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
MAX2367EGM-TD FAQ
1.How can I place an order for MAX2367EGM-TD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2367EGM-TD 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 MAX2367EGM-TD reliable?
The price and inventory of MAX2367EGM-TD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2367EGM-TD is usually 5 days.
3.What payment methods are accepted for MAX2367EGM-TD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2367EGM-TD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2367EGM-TD?
MAX2367EGM-TD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2367EGM-TD 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 MAX2367EGM-TD?
For technical support, including MAX2367EGM-TD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2367EGM-TD requirements.
6.How does Aetrix verify that MAX2367EGM-TD is sourced from the original manufacturer or authorized distributors?
All MAX2367EGM-TD 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 MAX2367EGM-TD meets industry standards.
7.What is the process for return or replacement of MAX2367EGM-TD?
All MAX2367EGM-TD units undergo pre-shipment inspection (PSI). If there is an issue with MAX2367EGM-TD, 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 MAX2367EGM-TD part is unused and in its original packaging.
Return procedure for MAX2367EGM-TD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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