規格
| 屬性 | 價值 |
| Package / Case | Strip |
| Part Status | Obsolete |
| Type | Integer-N/Fractional-N |
| PLL | Yes |
| Input | CMOS |
| Output | CMOS |
| Number of Circuits | 1 |
| Ratio - Input: Output | 1:1 |
| Differential - Input: Output | Yes/No |
| Frequency - Max | 8GHz |
| Divider / Multiplier | Yes/No |
| Voltage - Supply | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
The HMC703LP4E is a high-performance, 4-bit digital step attenuator (DSA) from Analog Devices (formerly Hittite Microwave). It operates from DC to 6 GHz, offering 0.5 dB step resolution and 31.5 dB total attenuation range.
Key features:
- Low insertion loss (~1.5 dB typical at 2 GHz).
- Fast switching speed (<50 ns).
- Serial (SPI) or parallel control interface.
- 4 mm × 4 mm QFN (LP4) package.
Ideal for RF/microwave systems, including wireless infrastructure, test equipment, and phased arrays, it provides precise attenuation with minimal phase variation. The HMC703LP4E ensures high linearity (IP3 > +50 dBm) and stable performance across temperature.
For detailed specs, refer to the datasheet.
Key features:
- Low insertion loss (~1.5 dB typical at 2 GHz).
- Fast switching speed (<50 ns).
- Serial (SPI) or parallel control interface.
- 4 mm × 4 mm QFN (LP4) package.
Ideal for RF/microwave systems, including wireless infrastructure, test equipment, and phased arrays, it provides precise attenuation with minimal phase variation. The HMC703LP4E ensures high linearity (IP3 > +50 dBm) and stable performance across temperature.
For detailed specs, refer to the datasheet.
Equivalent
The HMC703LP4E is a fractional-N PLL with integrated VCO. Equivalent or similar products include:
- ADF4355 (Analog Devices) - Wideband PLL/VCO
- LMX2594 (Texas Instruments) - High-performance RF synthesizer
- MAX2870 (Maxim Integrated) - Fast-locking PLL/VCO
- HMC704 (Analog Devices) - Higher-performance variant
These alternatives offer comparable frequency synthesis with varying features like phase noise, tuning range, and integration levels. Check datasheets for exact specs.
- ADF4355 (Analog Devices) - Wideband PLL/VCO
- LMX2594 (Texas Instruments) - High-performance RF synthesizer
- MAX2870 (Maxim Integrated) - Fast-locking PLL/VCO
- HMC704 (Analog Devices) - Higher-performance variant
These alternatives offer comparable frequency synthesis with varying features like phase noise, tuning range, and integration levels. Check datasheets for exact specs.
Features
The HMC703LP4E is a high-performance, fractional-N PLL with integrated VCO, designed for precision frequency synthesis. Key features include:
- Frequency Range: 53 MHz to 6800 MHz (w/ external VCO)
- Low Phase Noise: Optimized for RF applications
- Fractional-N & Integer-N Modes: Flexible frequency resolution
- Integrated VCO: Covers 3400–6800 MHz (internal)
- Fast Locking: Supports rapid frequency switching
- Digital Lock Detect: Ensures stable operation
- SPI Interface: Easy digital control
- Low Power: Typically 300 mA at 5V
- Compact Package: 4x4 mm QFN (24-lead)
Ideal for wireless infrastructure, test equipment, and military/aerospace systems.
- Frequency Range: 53 MHz to 6800 MHz (w/ external VCO)
- Low Phase Noise: Optimized for RF applications
- Fractional-N & Integer-N Modes: Flexible frequency resolution
- Integrated VCO: Covers 3400–6800 MHz (internal)
- Fast Locking: Supports rapid frequency switching
- Digital Lock Detect: Ensures stable operation
- SPI Interface: Easy digital control
- Low Power: Typically 300 mA at 5V
- Compact Package: 4x4 mm QFN (24-lead)
Ideal for wireless infrastructure, test equipment, and military/aerospace systems.
Pinout
The HMC703LP4E is a 4-bit digital step attenuator in a 24-pin QFN (4x4 mm) package.
Key Functions:
- Attenuation Range: 0.5 dB to 31.5 dB in 0.5 dB steps.
- Serial Control: SPI-compatible interface (3-wire).
- Low Insertion Loss: ~1.5 dB typical at 6 GHz.
- High Linearity: Up to +55 dBm input IP3.
- Fast Switching: <10 ns settling time.
Pin Count & Notable Pins:
- 24 pins total, including:
- VDD, GND (power & ground).
- SCLK, SDI, SEN (SPI control).
- RF1, RF2 (RF input/output).
- LE (latch enable for parallel mode).
Applications:
- RF signal conditioning, test equipment, and wireless infrastructure.
Key Functions:
- Attenuation Range: 0.5 dB to 31.5 dB in 0.5 dB steps.
- Serial Control: SPI-compatible interface (3-wire).
- Low Insertion Loss: ~1.5 dB typical at 6 GHz.
- High Linearity: Up to +55 dBm input IP3.
- Fast Switching: <10 ns settling time.
Pin Count & Notable Pins:
- 24 pins total, including:
- VDD, GND (power & ground).
- SCLK, SDI, SEN (SPI control).
- RF1, RF2 (RF input/output).
- LE (latch enable for parallel mode).
Applications:
- RF signal conditioning, test equipment, and wireless infrastructure.
Manufacturer
The HMC703LP4E is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) technologies. ADI is known for its precision data conversion, signal conditioning, and RF (radio frequency) components, serving industries like communications, automotive, healthcare, and industrial automation. The HMC703LP4E is part of their RF/microwave product line, designed for applications requiring high-frequency performance. Analog Devices is headquartered in Wilmington, Massachusetts, USA.
