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Analog Devices Inc. ADRF6701ACPZ-R7
- Part No.:
- ADRF6701ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Modulators
- Package:
- 40-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADRF6701ACPZ-R7.pdf
- Description:
- RF MODULATR 400MHZ-1.25GHZ 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,555
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Product details
Overview
ADRF6701ACPZ-R7 from Analog Devices is a highly integrated RF quadrature modulator with fractional-N PLL and on-chip VCO, operating across 400 MHz to 1250 MHz RF output and 750–1150 MHz internal LO range. It delivers 10.3 dBm P1dB at 1100 MHz, −159.4 dBm/Hz noise floor, and 30.1 dBm OIP3, enabling high-linearity transmit paths in cellular baseband-to-RF conversion.
For engineers reviewing the ADRF6701ACPZ-R7 datasheet, ADRF6701ACPZ-R7 pinout, ADRF6701ACPZ-R7 application, or ADRF6701ACPZ-R7 equivalent, this page provides verified RF performance data, SPI-programmable PLL register mapping, thermal-aware LFCSP package layout guidance, and validated alternatives for LTE/W-CDMA transceiver design.
Technical Context
The ADRF6701ACPZ-R7 integrates a wideband IQ modulator, sigma-delta fractional-N PLL, low-phase-noise SiGe BiCMOS VCO, and programmable charge pump (250–1000 µA). Its 2× LO architecture feeds a quadrature divider to generate precise I/Q LO phases, while the Σ-Δ modulator suppresses fractional spurs across the full 750–1150 MHz LO band.
Baseband inputs accept 750 MHz 3 dB bandwidth differential signals with 0.5 V DC bias; RFOUT is single-ended, 50 Ω matched, and disableable via ENOP. The device supports external LO injection (via LOP/LON) and temperature monitoring (MUXOUT/VPTAT), all controlled through a 24-bit SPI interface with 20 MHz max clock rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Output Range | 400–1250 MHz ±3 dB - covers GSM/EDGE, W-CDMA, LTE FDD/TDD bands without external upconversion. |
| Internal LO Range | 750–1150 MHz - enables direct synthesis of 2× LO for IQ modulation without external frequency doublers. |
| P1dB Output Power | 10.3 dBm @ 1100 MHz - sufficient to drive power amplifier input stages with margin before compression. |
| OIP3 | 30.1 dBm @ 1100 MHz - ensures >70 dB ACLR in 20 MHz LTE signals under typical baseband drive conditions. |
| Noise Floor | −159.4 dBm/Hz @ 1100 MHz - supports high SNR in wideband receivers when used in zero-IF or complex IF architectures. |
| Phase Noise | −113 dBc/Hz @ 10 kHz offset (1100 MHz) - meets stringent EVM requirements for 64-QAM LTE transmission. |
| Supply & Current | 5 V / 240 mA (normal Tx mode) - optimized for compact RF front-end power budgeting with integrated LDOs. |
Pinout & Package
ADRF6701ACPZ-R7 uses a 40-lead, 6 mm × 6 mm exposed-paddle LFCSP package (RoHS-compliant, Pb-free). The thermally enhanced paddle must be soldered to a low-impedance ground plane per JESD51-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC1–VCC7 | Power supply inputs | Seven independent 4.75–5.25 V supply pins requiring local 100 pF + 0.1 µF decoupling - minimizes supply coupling between analog/RF/digital domains. |
| IP, IN, QP, QN | Differential baseband inputs | 920 Ω differential impedance, 1 pF capacitance, 0.5 V DC bias - compatible with standard DAC output drivers without AC-coupling or level-shifting. |
| RFOUT | Single-ended RF output | 50 Ω internally biased, AC-coupled output - connects directly to PA input or filter network; enable/disable controlled by ENOP pin. |
| LOP, LON | LO input/output terminals | Configurable as 1×/2× LO outputs or external 2× LO inputs (via LOSEL/LDRV bits) - supports flexible system-level LO distribution. |
| VTUNE | VCO tuning voltage input | 1.3–2.5 V nominal range - interfaces directly with loop filter output; open when using external VCO mode. |
| CLK, DATA, LE | SPI interface control | 24-bit serial interface (MSB-first, 20 MHz max) with latch-enable timing - enables full PLL/VCO/modulator configuration in <100 µs. |
| MUXOUT | Multiplexed diagnostic output | Selectable lock detect, VPTAT (3.75 mV/°C), or buffered reference - eliminates need for external sensors in thermal-aware designs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated fractional-N PLL + VCO | Eliminates discrete synthesizer components; achieves −222 dBc/Hz/Hz figure-of-merit across full LO range. |
| 750 MHz baseband bandwidth | Supports 100+ MHz instantaneous signal bandwidths (e.g., 160 MHz NR FR1) without external filtering. |
| Programmable charge pump current | Four settings (250/500/750/1000 µA) allow loop filter optimization for phase noise vs. lock time trade-offs. |
| On-chip LDOs and LO buffer | Reduces external BOM count by 6+ regulators/buffers; LO buffer option increases supply current to 290 mA for higher drive capability. |
| Temperature sensor (VPTAT) | Calibrated 1.63 V @ 25°C with ±0.1 V accuracy over −40°C to +85°C - enables closed-loop thermal compensation in PA bias control. |
Applications
| Cellular Base Station Transceivers | LTE FDD/TDD Remote Radio Heads |
|---|---|
|
Use Scenario: Transmit path in macro/micro base station radios supporting 2×2 MIMO with 20–100 MHz channel bandwidths. IC Role / Device Role / Timing Role: Direct-conversion IQ modulator with integrated PLL/VCO generates RF carrier and performs complex upconversion. Use Value: Replaces 3–4 discrete ICs (modulator + synthesizer + VCO + buffer), reducing PCB area by >40% and improving LO phase coherence across MIMO channels. |
Use Scenario: Compact RRH units deployed on cell towers with strict SWaP-C constraints and outdoor thermal cycling. IC Role / Device Role / Timing Role: Single-chip RF frontend delivering calibrated I/Q modulation and stable LO synthesis from −40°C to +85°C. Use Value: Integrated temperature sensor and robust 6 mm × 6 mm LFCSP package eliminate external thermal management components and improve field reliability. |
| GSM/EDGE/W-CDMA Small Cells | Satellite Modem Uplink Stages |
|
Use Scenario: Low-power small cell BTS covering urban hotspots with multi-standard (GSM/W-CDMA/LTE) support. IC Role / Device Role / Timing Role: Programmable modulator/PLL enables dynamic reconfiguration between standards via SPI register writes. Use Value: 240 mA supply current at 5 V enables fanless operation; 30.1 dBm OIP3 meets ACLR mask for adjacent-channel interference suppression. |
Use Scenario: L-band (950–1250 MHz) uplink transmitter in VSAT terminals requiring ultra-low phase noise and high spectral purity. IC Role / Device Role / Timing Role: High-performance modulator with −113 dBc/Hz @ 10 kHz phase noise serves as final-stage upconverter before power amplification. Use Value: −159.4 dBm/Hz noise floor and <0.12°rms integrated phase noise ensure BER <1e−6 in QPSK/8PSK satellite links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF quadrature modulator with integrated synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADRF6702ACPZ-R7 | Higher LO range (1550–2150 MHz) and RF output (1200–2400 MHz); identical pinout and SPI interface. | Targets PCS/UMTS Band II/IV/V and 2.3–2.4 GHz LTE; not suitable for sub-1 GHz legacy bands without external mixing. | Select when designing for 1.7–2.2 GHz infrastructure; requires no PCB changes but firmware must adjust PLL register values for new LO range. |
| TRF3705IRGZT | Lower integration: no on-chip VCO or fractional-N PLL; requires external synthesizer and loop filter; 400–4000 MHz RF range. | Better suited for wideband test equipment or multi-band SDR where LO agility > phase noise is prioritized. | Choose for cost-sensitive, non-infrastructure applications where external LO simplifies frequency planning; adds ~5 passive components to BOM. |
Compared with ADRF6701ACPZ-R7, ADRF6702ACPZ-R7 extends frequency coverage upward with identical integration and layout compatibility, while TRF3705IRGZT trades integration for wider RF bandwidth and lower unit cost-making it viable only where external LO sourcing is already established.
Availability
ADRF6701ACPZ-R7 is available at Aetrix Electronics and suitable for cellular infrastructure, satellite communications, and broadband wireless access systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADRF6701ACPZ-R7 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and RF ICs, serving communications, industrial, automotive, and healthcare markets with precision signal processing solutions.
The ADRF6701ACPZ-R7 belongs to Analog Devices' RF transceiver and modulator product line, engineered specifically for high-efficiency, high-linearity wireless infrastructure transmitters demanding minimal external components and guaranteed phase noise performance.
FAQ
What is the maximum baseband input bandwidth supported by the ADRF6701ACPZ-R7?
The ADRF6701ACPZ-R7 supports a 750 MHz 3 dB baseband bandwidth, verified across IP/IN/QP/QN inputs with 0.5 V DC bias. This enables direct modulation of wideband signals such as 100 MHz LTE carriers or 160 MHz 5G NR FR1 channels without external baseband filtering or gain staging.
Does the ADRF6701ACPZ-R7 require an external loop filter for PLL operation?
Yes, the ADRF6701ACPZ-R7 requires an external third-order loop filter connected between CP and VTUNE pins. The datasheet specifies a 130 kHz bandwidth design for optimal phase noise and lock time; component values depend on selected charge pump current (250–1000 µA) and VCO gain.
Can the ADRF6701ACPZ-R7 operate with an external LO instead of its internal VCO?
Yes, the ADRF6701ACPZ-R7 supports external LO injection via LOP/LON pins when LOSEL is set low and LDRV/LXL bits are configured per Table 7. In this mode, internal VCO/PLL is disabled, reducing supply current to 130 mA and enabling use with ultra-low-noise external synthesizers.
What is the purpose of the MUXOUT pin on the ADRF6701ACPZ-R7?
The MUXOUT pin on the ADRF6701ACPZ-R7 provides three selectable outputs via SPI register DB21–DB23: digital lock detect, voltage-proportional-to-absolute-temperature (VPTAT), or buffered reference signal. This eliminates need for external sensors or logic probes during bring-up and thermal validation.
How does the ENOP pin control RF output functionality in the ADRF6701ACPZ-R7?
The ENOP pin on the ADRF6701ACPZ-R7 enables or disables the RFOUT driver. When ENOP = 1 and Register 5 Bit DB6 = 1, RFOUT is active; setting ENOP = 0 or DB6 = 0 places RFOUT in high-impedance state. This allows fast TDD switching or power-saving mute during idle periods without disrupting PLL lock.
ADRF6701ACPZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Modulator
- LO Frequency:
- 750MHz ~ 1.15GHz
- RF Frequency:
- 400MHz ~ 1.25GHz
- P1dB:
- 10.3dB
- Noise Floor:
- -159.4dBm/Hz
- Output Power:
- 2.1dBm
- Current - Supply:
- 290 mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Test Frequency:
- 1.1GHz
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-LFCSP-VQ (6x6)
ADRF6701ACPZ-R7 FAQ
1.How can I place an order for ADRF6701ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADRF6701ACPZ-R7 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 ADRF6701ACPZ-R7 reliable?
The price and inventory of ADRF6701ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADRF6701ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADRF6701ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADRF6701ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADRF6701ACPZ-R7?
ADRF6701ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADRF6701ACPZ-R7 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 ADRF6701ACPZ-R7?
For technical support, including ADRF6701ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADRF6701ACPZ-R7 requirements.
6.How does Aetrix verify that ADRF6701ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADRF6701ACPZ-R7 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 ADRF6701ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADRF6701ACPZ-R7?
All ADRF6701ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADRF6701ACPZ-R7, 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 ADRF6701ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADRF6701ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADRF6701ACPZ-R7 Tags
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