AFE7070 Texas instruments

AFE7070

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AFE7070

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Описание

The AFE7070 is a dual 14-bit 65-MSPS digital-to-analog converter (DAC) with integrated, programmable fourth-order baseband filter and analog quadrature modulator. The AFE7070 includes additional digital signal-processing features such as a numerically controlled oscillator for frequency generation/translation, and a quadrature modulator correction circuit, providing LO and sideband suppression capability. The AFE7070 has an interleaved 14-bit 1.8-V to 3.3-V CMOS input. The AFE7070 provides 20 MHz of RF signal bandwidth with an RF output frequency range of 100 MHz to 2.7 GHz. An optional LVDS output can be used to convert the quadrature modulator output to a clock signal up to 800 MHz. Total power consumption is less than 350 mW with the LVDS output and 334 mW with the analog RF output. The AFE7070 package is a 7-mm × 7mm 48-pin QFN package. The AFE7070 is specified over the full industrial temperature range (–40°C to 85°C).

Maximum Sample Rate: 65 MSPS
Low Power:
- 325 mW LVDS Output Mode
- 334 mW Analog Output Mode
Interleaved CMOS Input, 1.8–3.3 V IOVDD
Input FIFO for Independent Data and DAC Clocks
3- or 4-pin SPI Interface for Register Programming
Complex NCO (DDS): 32-Bit Frequency, 16-Bit Phase
Quadrature Modulator Correction: Gain, Phase, Offset
for Sideband and LO Suppression
Analog Baseband Filter With Programmable
Bandwidth: 20-MHz Maximum RF Bandwidth
RF Ouput: Analog (linear) or LVDS (Clock)
RF Frequency Range: 100 MHz to 2.7 GHz
Package: 48-Pin QFN (7-mm × 7-mm)

Frequency (min) (MHz)	100
Frequency (max) (MHz)	2700
Resolution (Bits)	14
Sample/update rate (Msps)	65
Number of DAC channels	2
Interpolation	1x
Output type	Differential, Single-ended
Power consumption (typ) (mW)	335
Operating temperature range (°C)	-40 to 85
Rating	Catalog