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MAX5858ECM

更新时间： 2024-01-08 03:48:51
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
23页 807K
描述
Dual, 10-Bit, 300Msps, Current-Output DAC with 4x/2x/1x Interpolation Filters

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MAX5858ECM 数据手册

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19-2879; Rev 0; 7/03  
Dual, 10-Bit, 300Msps, Current-Output DAC with  
4x/2x/1x Interpolation Filters  
General Description  
Features  
The MAX5858 dual, 10-bit, 300Msps digital-to-analog con-  
verter (DAC) provides superior dynamic performance in  
wideband communication systems. The MAX5858 inte-  
grates two 10-bit DAC cores, 2x/4x programmable digital  
interpolation filters, and a 1.24V reference. The MAX5858  
supports single-ended and differential modes of operation.  
The MAX5858 dynamic performance is maintained over  
the entire power-supply operating range of 2.7V to 3.3V.  
The analog outputs support a compliance voltage of -1.0V  
to +1.25V.  
o 10-Bit Resolution, Dual DAC  
o 300Msps Update Rate  
o Integrated 4x/2x Interpolating Filters  
o 2.7V to 3.3V Single Supply  
o Full Output Swing and Dynamic Performance at  
2.7V Supply  
o Superior Dynamic Performance  
75dBc SFDR at f  
UMTS ACLR = 63dB at f  
= 20MHz  
OUT  
The 4x/2x programmable interpolation filters feature  
excellent passband distortion and noise performance.  
Interpolating filters minimize the design complexity of  
analog reconstruction filters while lowering data bus  
and clock speeds of the digital interface. To reduce the  
I/O pin count, the DAC can also operate in interleave  
data mode. This allows the MAX5858 to be updated on  
a single 10-bit bus.  
= 30.7MHz  
OUT  
o Programmable Channel-Gain Matching  
o Integrated 1.24V Low-Noise Bandgap Reference  
o Single-Resistor Gain Control  
o Interleave Data Mode  
o Differential Clock Input Modes  
o EV Kit Available—MAX5858 EV Kit  
The MAX5858 features digital control of channel gain  
matching to within 0.4dꢀ in 1ꢁ 0.05dꢀ steps. Channel  
matching improves sideband suppression in analog  
quadrature modulation applications. The on-chip 1.24V  
bandgap reference includes a control amplifier that  
allows external full-scale adjustments of both channels  
through a single resistor. The internal reference can be  
disabled and an external reference may be applied for  
high-accuracy applications.  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX5858ECM  
-40°C to +85°C  
48 TQFP-EP*  
*EP = Exposed paddle.  
The MAX5858 features full-scale current outputs of 2mA  
to 20mA and operates from a 2.7V to 3.3V single sup-  
ply. The DAC supports three modes of power-control  
operation: normal, low-power standby, and complete  
power-down. In power-down mode, the operating  
current is reduced to 1µA.  
Pin Configuration  
48 47 46 45 44 43 42 41 40 39 38 37  
1
2
REFO  
REN  
DA9/PD  
36  
35  
34  
33  
32  
The MAX5858 is packaged in a 48-pin TQFP with exposed  
paddle (EP) for enhanced thermal dissipation and is spec-  
ified for the extended (-40°C to +85°C) temperature range.  
DA8/DACEN  
DA7/F2EN  
DA6/F1EN  
DA5/G3  
3
I.C.  
4
CGND  
5
CV  
DD  
6
CLKXN 31  
DGND  
Applications  
MAX5858  
7
DV  
CLKXP  
CGND  
I.C.  
30  
29  
28  
27  
26  
25  
DD  
Communications  
8
DA4/G2  
DA3/G1  
DA2/G0  
DA1  
SatCom, LMDS, MMDS, HFC, DSL, WLAN,  
Point-to-Point Microwave Links  
9
CW  
10  
11  
12  
Wireless ꢀase Stations  
Direct Digital Synthesis  
Instrumentation/ATE  
DB0  
DB1  
DA0  
13 14 15 16 17 18 19 20 21 22 23 24  
TQFP-EP  
NOTE: EXPOSED PADDLE CONNECTED TO GND.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...23

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