參數(shù)資料
型號(hào)： MAX5898EGK+D
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 19/33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
26
______________________________________________________________________________________
sources directly to the device without external resistors
to define the DC level. The input resistance of CLKP
and CLKN is 5k
.
A convenient way to apply a differential signal is with a
balun transformer as shown in Figure 15. Alternatively,
these inputs may be driven from a CMOS-compatible
clock source, however it is recommended to use sine-
wave or AC-coupled differential ECL/PECL drive for best
dynamic performance.
Output Interface (OUTI, OUTQ)
The MAX5898 outputs complementary currents (OUTIP,
OUTIN, OUTQP, and OUTQN) that can be utilized in a
differential configuration. Load resistors convert these
two output currents into a differential output voltage.
The differential output between OUTIP (OUTQP) and
OUTIN (OUTQN) can be converted to a single-ended
output using a transformer or a differential amplifier.
Figure 16 shows a typical transformer-based applica-
tion circuit for generation of IF output signals. In this
configuration, the MAX5898 operates in differential
mode, which reduces even-order harmonics, and
increases the available output power. Pay close atten-
tion to the transformer core saturation characteristics
when selecting a transformer. Transformer core satura-
tion can introduce strong second harmonic distortion,
especially at low output frequencies and high signal
amplitudes. It is recommended to connect the trans-
former center tap to ground.
Figure 15. Single-Ended-to-Differential Clock Conversion Using
a Balun Transformer
SINGLE-ENDED
IINPUT
1:1 RATIO
MINI-CIRCUITS
ADTL1-12
24.9
24.9
CLKP
CLKN
100nF
MAX5898
Figure 16. Differential-to-Single-Ended Conversion Using Wideband RF Transformers
MAX5898
OUTQP
OUTQN
QDAC
16
1:1
50
100
50
VQOUT, SINGLE-ENDED
OUTIP
OUTIN
IDAC
16
1:1
50
100
50
VIOUT, SINGLE-ENDED
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