ADC3908CSSS datasheet(27/47 Pages) TI

部件名	ADC3908CSSS

功能描述	ADC3908Dx and ADC3908Sx 8-bit, 25 to 125MSPS Low Latency, Low Power, Small, Single and Dual Channel ADC with Integrated Input Buffers

PDF	47 Pages

Scroll/Zoom	100%

制造商	TI [Texas Instruments]

网页	http://www.ti.com

标志

27 / 47 page

7.3.2 Sampling Clock Input

The ADC3908Dx and ADC3908Sx has a single-ended sampling clock input. To maximize the ADC SNR

performance, the external sampling clock should have low jitter with a high slew rate. The ADC3908Dx and

ADC3908Sx can be AC or DC coupled externally. When AC coupling, sampling clock needs to have a resistor

divider such that the center voltage is around 0.9V and when DC coupling the sampling clock, center voltage

needs to be around 0.9V as shown in Figure 7-6.

CLK

0.9V

1.8V

ADC

AVDD

GND

Figure 7-6. Sampling clock configuration: AC coupled (left) and DC coupled (right)

www.ti.com

ADC3908D025, ADC3908D065, ADC3908D125

ADC3908S025, ADC3908S065, ADC3908S125

SBASAU9 – OCTOBER 2024

Submit Document Feedback

Product Folder Links: ADC3908D025 ADC3908D065 ADC3908D125 ADC3908S025 ADC3908S065 ADC3908S125

ADC3908CSSS 数据表(PDF) 27 Page - Texas Instruments