AFE7900IALK datasheet(39/157 Pages) TI

Part #	AFE7900IALK

Description	AFE7900 4T6R RF Sampling AFE with 12 GSPS DACs and 3 GSPS ADCs

PDF	157 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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39 / 157 page

6.12.1 RX Typical Characteristics 30 MHz and 400 MHz (continued)

Typical values at TA = +25°C. Default conditions at 30MHz: ADC Sampling Rate = 1500 MSPS, output sample rate = 62.5

MSPS (decimate by 24x), PLL clock mode with fREF = 500 MHz, AIN = –3 dBFS, DSA setting = 3 dB. Default conditions at

400 MHz: ADC Sampling Rate = 1500 MSPS, output sample rate = 125 MSPS (decimate by 12x), PLL clock mode with fREF

= 500 MHz, AIN = –3 dBFS, DSA setting = 3 dB.

Integrated Phase Error = Phase(DSA Setting) – Phase(DSA

Setting = 0)

Figure 6-37. RX Calibrated Integrated Phase Error vs DSA

Setting at 400 MHz

fNCO = 400MHz

Figure 6-38. RX Output FFT at 405 MHz and -3dBFS

fNCO = 400MHz

Figure 6-39. RX Output FFT at 405 MHz and -6dBFS

fNCO = 400MHz

Figure 6-40. RX Output FFT at 405 MHz and -12dBFS

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AFE7900

SBASA44A – AUGUST 2021 – REVISED MARCH 2022

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AFE7900IALK Datasheet(PDF) 39 Page - Texas Instruments