參數(shù)資料
型號(hào)： MAX5898EGK+D
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 13/33頁(yè)
文件大小： 0K
描述： IC DAC 16BIT DUAL 500MSPS 68-QFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 30
設(shè)置時(shí)間： 11ns
位數(shù)： 16
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
電壓電源： 模擬和數(shù)字
功率耗散（最大）： 831mW
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 68-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 68-QFN 裸露焊盤（10x10）
包裝： 管件
輸出數(shù)目和類型： 2 電流，單極
采樣率（每秒）： 500M
MAX5898
16-Bit, 500Msps, Interpolating and Modulating
Dual DAC with Interleaved LVDS Inputs
20
______________________________________________________________________________________
The programmable interpolation filters multiply the
MAX5898 input data rate by a factor of 2x, 4x, or 8x to
separate the reconstructed waveform spectrum and the
DAC image. The original spectral images, appearing at
around multiples of the input data rate, are attenuated
by the internal digital filters. This feature provides three
benefits:
1) Image separation reduces complexity of analog
reconstruction filters.
2) Lower input data rates eliminate board-level high-
speed data transmission.
3) Sin(x)/x rolloff is reduced over the effective bandwidth.
Figure 9 illustrates a practical example of the benefits
when using the MAX5898 in 2x, 4x, and 8x interpolation
modes with the third filter configured as a lowpass filter.
With no interpolation filter, the first image signal appears
in the second Nyquist zone between fS / 2 and fS. The first
interpolating filter removes this image. In fact, all of the
Figure 9. Spectral Representation of Interpolating Filter Responses (Output Frequencies are Relative to the Data Input Frequency, fS)
fS
2fS
3fS
4fS
5fS
6fS
7fS
8fS
fS
2fS
3fS
4fS
5fS
6fS
7fS
8fS
fS
2fS
3fS
4fS
5fS
6fS
7fS
8fS
fS
2fS
3fS
4fS
5fS
6fS
7fS
8fS
fS
2fS
3fS
4fS
5fS
6fS
7fS
8fS
fS
2fS
3fS
4fS
5fS
6fS
7fS
8fS
FILTER
RESPONSE
FILTER
RESPONSE
FILTER
RESPONSE
INPUT
SPECTRUM
AND FIRST
FILTER
RESPONSE
OUTPUT
SPECTRUM
OF THE
FIRST
FILTER
INPUT
SPECTRUM
AND
SECOND
FILTER
RESPONSE
OUTPUT
SPECTRUM
OF THE
SECOND
FILTER
INPUT
SPECTRUM
AND THIRD
FILTER
RESPONSE
OUTPUT
SPECTRUM
OF THE
THIRD
FILTER
2x INTERPOLATION
4x INTERPOLATION
8x INTERPOLATION
NO INTERPOLATION
SIGNAL
IMAGE
SIGNAL
IMAGE
SIGNAL
IMAGE
SIGNAL
IMAGE
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