Rainbow Electronics MAX5890 - Manual

General Description
The MAX5890 advanced 14-bit, 600Msps, digital-to-
analog converter (DAC) meets the demanding perfor-
mance requirements of signal synthesis applications
found in wireless base stations and other communica-
tions applications. Operating from +3.3V and +1.8V
supplies, the MAX5890 DAC supports update rates of
600Msps using high-speed LVDS inputs while consum-
ing only 297mW of power and offers exceptional
dynamic performance such as 80dBc spurious-free
dynamic range (SFDR) at f
OUT = 30MHz.
The MAX5890 utilizes a current-steering architecture that
supports a 2mA to 20mA full-scale output current range,
and produces -2dBm to -22dBm full-scale output signal
levels with a double-terminated 50
Ω load. The MAX5890
features an integrated +1.2V bandgap reference and
control amplifier to ensure high-accuracy and low-noise
performance. A separate reference input (REFIO) allows
for the use of an external reference source for optimum
flexibility and improved gain accuracy.
The MAX5890 digital inputs accept LVDS voltage lev-
els, and the flexible clock input can be driven differen-
tially or single-ended, AC- or DC-coupled. The
MAX5890 is available in a 68-pin QFN package with an
exposed paddle (EP) and is specified for the extended
(-40°C to +85°C) temperature range.
Refer to the MAX5891 and MAX5889 data sheets for
pin-compatible 16-bit and 12-bit versions of the
MAX5890.
Applications
Base Stations: Single/Multicarrier UMTS,
CDMA, GSM
Communications: Fixed Broadband Wireless
Access, Point-to-Point Microwave
Direct Digital Synthesis (DDS)
Cable Modem Termination Systems (CMTS)
Automated Test Equipment (ATE)
Instrumentation
Features
♦ 600Msps Output Update Rate
♦ Low Noise Spectral Density: -162dBFS/Hz at
f OUT = 36MHz
♦ Excellent SFDR and IMD Performance
SFDR = 80dBc at f
OUT
= 30MHz (to Nyquist)
SFDR = 68dBc at f
OUT
= 130MHz (to Nyquist)
IMD = -93dBc at f
OUT
= 30MHz
IMD = -76dBc at f
OUT
= 130MHz
♦ ACLR = 73dB at f
OUT = 122.88MHz
♦ 2mA to 20mA Full-Scale Output Current
♦ LVDS-Compatible Digital Inputs
♦ On-Chip +1.2V Bandgap Reference
♦ Low 297mW Power Dissipation at 600Msps
♦ Compact (10mm x 10mm) QFN-EP Package
♦ Evaluation Kit Available (MAX5891EVKIT)
MAX5890
14-Bit, 600Msps, High-Dynamic-Performance
DAC with LVDS Inputs
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3619; Rev 0; 4/05
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.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
PKG
CODE
MAX5890EGK -40 °C to +85°C 68 QFN-EP* G6800-4
MAX5890
+1.2V
REFERENCE
REFIO
DACREF
FSADJ
CLK
INTERFACE
600MHz
14-BIT DAC
LATCH
LVDS
RECEIVER
D0–D13
LVDS DATA
INPUTS
POWER
DOWN
PD
CLKP
CLKN
OUTP
OUTN
Functional Diagram
PART
RESOLUTION
(BITS)
UPDATE RATE
(Msps)
LOGIC INPUT
MAX5889 12 600 LVDS
MAX5890 14 600 LVDS
MAX5891 16 600 LVDS
Selector Guide
*EP = Exposed paddle.
Pin Configuration appears at end of data sheet.