LM15851 Texas instruments

LM15851

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LM15851

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Описание

The LM15851 device is a wideband sampling and digital tuning device. Texas Instruments giga-sample analog-to-digital converter (ADC) technology enables a large block of frequency spectrum to be sampled directly at RF. An integrated DDC (Digital Down Converter) provides digital filtering and down-conversion. The selected frequency block is made available on a JESD204B serial interface. Data is output as baseband 15-bit complex information for ease of downstream processing. Based on the digital down-converter (DDC) decimation and link output rate settings, this data is output on 1 to 5 lanes of the serial interface.The LM15851 device is available in a 68-pin VQFN package. The device operates over the Industrial (–40°C ≤ TA ≤ 85°C) ambient temperature range.

Excellent Noise and Linearity up to and beyond F_IN = 3 GHz
Configurable DDC
Decimation Factors from 4 to 32 (Complex Baseband Out)
Usable Output Bandwidth of 800 MHz at
4x Decimation and 4000 MSPS
Usable Output Bandwidth of 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
Key Specifications:
- Max Sampling Rate: 4000 MSPS
- Min Sampling Rate: 1000 MSPS
- DDC Output Word Size: 15-Bit Complex (30 bits total)
- IMD3: −64 dBc (F_IN = 2140 MHz ± 30 MHz at −13 dBFS)
- FPBW (–3 dB): 3.2 GHz
- Supply Voltages: 1.9 V and 1.2 V
- Power Consumption
  - Decimate by 10 (4000 MSPS): 2 W
  - Power Down Mode: <50 mW

Number of input channels	1
Resolution (Bits)	15
Sample rate (max) (Msps)	4000
Features	Decimating Filter, Differential Inputs, Out of Range Indicator, Power Down, Ultra High Speed
Analog input BW (MHz)	3300
SFDR (typ) (dB)	70.1
SNR (typ) (dB)	59.9
Power consumption (typ) (mW)	2000
Operating temperature range (°C)	-40 to 85
Rating	Catalog