AD9915

更新时间： 2024-02-14 19:30:16

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
48页	877K
描述
2.5 GSPS Direct Digital Synthesizer with 12-Bit DAC

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技术参数
数据手册

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AD9915 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	,
针数：	88	Reach Compliance Code：	compliant
ECCN代码：	3A001.A.13.B	HTS代码：	8542.39.00.01
风险等级：	2.16	Is Samacsys：	N
商用集成电路类型：	TONE/MUSIC SYNTHESIZER	JESD-609代码：	e3
湿度敏感等级：	3	端子面层：	Tin (Sn)
Base Number Matches：	1

AD9915 数据手册

Data Sheet

AD9915

Digital Ramp Rate Register—Address 0x08

This register is effective only if the digital ramp enable bit in the CFR2 register (0x01[19]) = 1. See the Digital Ramp Generator (DRG)

section for details.

Table 25. Bit Descriptions for Digital Ramp Rate Register

Bit(s)

Mnemonic

Description

[31:16]

Digital ramp negative slope 16-bit digital ramp negative slope value that defines the time interval between decrement

rate

values.

[15:0]

Digital ramp positive slope

rate

16-bit digital ramp positive slope value that defines the time interval between increment

values.

Lower Frequency Jump Register—Address 0x09

This register is effective only if the digital ramp enable bit (0x01[19]) = 1 and the frequency jump enable bit (0x01[14]) = 1 in the CFR2

Table 26. Bit Descriptions for Lower Frequency Jump Register

Bit(s)

Mnemonic

Description

[31:0]

Lower frequency jump

point

32-bit digital lower frequency jump value. Any time the lower frequency jump value is

reached during a frequency sweep, the output frequency jumps to the upper frequency

value instantaneously and continues frequency sweeping in a phase-continuous manner.

Upper Frequency Jump Register—Address 0x0A

This register is effective only if the digital ramp enable bit (0x01[19]) = 1 and the frequency jump enable bit (0x01[14]) = 1 in the CFR2

Table 27. Bit Descriptions for Upper Frequency Jump Register

Bit(s)

Mnemonic

Description

[31:0]

Upper frequency jump

point

32-bit digital upper frequency jump value. Any time the upper frequency jump value is

reached during a frequency sweep, the output frequency jumps to the lower frequency

value instantaneously and continues frequency sweeping in a phase-continuous manner.

Rev. A | Page 45 of 48

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