ADC34RF72 datasheet(65/74 Pages) TI2

tên linh kiện	ADC34RF72

Giải thích chi tiết về linh kiện	ADC32RF72 Dual Channel 1.5GSPS 16-bit RF Sampling ADC

PDF	74 Pages

Scroll/Zoom	100%

nhà sản xuất	TI2 [Texas Instruments]

Trang chủ	https://www.ti.com

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65 / 74 page

8.5 Power Supply Recommendations

The device requires 3 different power supply voltages: the internal analog circuitry operate off 1.8V and 1.2V

rails while the digital logic uses a 0.9V rail. Figure 8-11 shows a typical power supply example using a switching

regulator for the digital 0.9V supply and low noise LDOs for the analog supplies. The voltage regulators must be

sequenced for both power up and power down as shown in Section 8.4.

High Current DC/DC

(TPSM82916)

DVDD09

0.9V @ 3A

(typical use case)

Low Noise LDO

(TPS7A9601)

AVDD12

1.2V @ 2A

(typical use case)

Low Noise LDO

(TPS7A94)

AVDDCLK12

1.2V @ 1A

(typical use case)

Low Noise LDO

(TPS7A9601)

AVDD18

1.8V @ 2A

(typical use case)

AVDDGPIO18

Low Noise LDO

(TPS7A9601)

AVDDCLK18

1.8V @ 2A

(typical use case)

Figure 8-11. Power supply rails and regulator examples

Frequency of Signal (MHz)

0.02

0.1

-90

-80

-70

-60

-50

AVDDCLK18

AVDDCLK12

AVDD18

AVDD12

Figure 8-12. PSRR

www.ti.com

ADC32RF72

SBASAL2 – NOVEMBER 2025

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