Overview
The LM15851NKET is a 12-bit, 4.0-GSPS RF-sampling wideband receiver produced by Texas Instruments. This device utilizes Texas Instruments' giga-sample analog-to-digital converter (ADC) technology, enabling the direct sampling of a large block of frequency spectrum at RF frequencies. It features an integrated Digital Down Converter (DDC) that provides digital filtering and down-conversion, making the selected frequency block available on a JESD204B serial interface. The device operates over an industrial temperature range of -40°C to 85°C and is packaged in a 68-pin VQFN package.
Key Specifications
| Parameter | Value |
|---|---|
| Max Sampling Rate | 4000 MSPS |
| Min Sampling Rate | 1000 MSPS |
| DDC Output Word Size | 15-Bit Complex (30 bits total) |
| IMD3 | −64 dBc (FIN= 2140 MHz ± 30 MHz at −13 dBFS) |
| FPBW (–3 dB) | 3.2 GHz |
| Supply Voltages | 1.9 V and 1.2 V |
| Power Consumption | 2 W (Decimate by 10 at 4000 MSPS), <50 mW (Power Down Mode) |
| Analog Input BW | 3300 MHz |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 68-VQFN (10x10) |
| Resolution | 12 Bits |
| SNR | 59.9 dB |
Key Features
- Excellent Noise and Linearity up to and beyond FIN= 3 GHz
- Configurable DDC with decimation factors from 4 to 32 (Complex Baseband Out)
- Usable Output Bandwidth of 800 MHz at 4x Decimation and 4000 MSPS, and 100 MHz at 32x Decimation and 4000 MSPS
- Low Pin-Count JESD204B Subclass 1 Interface
- Automatically Optimized Output Lane Count
- Embedded Low Latency Signal Range Indication
- Low Power Consumption
- Differential Inputs and Out of Range Indicator
Applications
The LM15851NKET is suitable for various high-frequency applications, including:
- Avionics and Defense Systems: The device is often used in system solutions for avionics and defense due to its high sampling rate and wideband capabilities.
- RF and Microwave Systems: Its ability to sample directly at RF frequencies makes it ideal for RF and microwave applications.
- Communication Systems: The device can be used in communication systems that require high-speed data conversion and digital down-conversion.
Q & A
- What is the maximum sampling rate of the LM15851NKET?
The maximum sampling rate is 4000 MSPS.
- What is the resolution of the LM15851NKET?
The resolution is 12 bits.
- What is the operating temperature range of the LM15851NKET?
The operating temperature range is -40°C to 85°C.
- What interface does the LM15851NKET use for data output?
The device uses a JESD204B serial interface.
- What are the supply voltages for the LM15851NKET?
The supply voltages are 1.9 V and 1.2 V.
- What is the typical power consumption of the LM15851NKET during normal operation?
The typical power consumption is 2 W when decimating by 10 at 4000 MSPS.
- Does the LM15851NKET have a power-down mode?
- What is the analog input bandwidth of the LM15851NKET?
The analog input bandwidth is 3300 MHz.
- Is the LM15851NKET RoHS compliant?
- What is the package type of the LM15851NKET?
The package type is 68-VQFN (10x10).
