Dual, 16-Bit, 1.25-GSPS, Digital-to-Analog Converter IC Incorporates a JESD204 Serial Input to Simplify the FPGA Interface
18 Juni 2012 - 6:05AM
Business Wire
IMS2012-- Analog Devices, Inc. (ADI), the data converter market
share leader* and a data conversion and signal processing
technology innovator for over 47 years, today introduced the
AD9128, a performance-leading 16-bit, 1.25-GSPS transmit D/A
converter (DAC) with integrated complex digital modulation
functionality, and featuring a JESD204A-compatible serial input.
The AD9128’s high-speed serial interface greatly simplifies and
improves the data connection between the DAC and the FPGA in a
typical system implementation.
High-performance FPGAs are increasingly being utilized as
processors in many data-centric wireless and wired communications,
radar, avionics, and medical imaging applications. FPGAs are
gaining favor due to their inherent advantages of easier system
development, reduced time-to-market, higher processing speed, and
on-the-fly programmability. However for higher-resolution, 1-GSPS+
data converter applications, data transfers in and out of an FPGA
have traditionally been a design bottleneck because of interface
bit-rate limitations, interconnect layout complexity, and parallel
interface board space requirements. JESD204 was specifically
developed to remedy these constraints by defining a robust
high-speed serial interface that is scalable and accommodates data
rates in the multiple Gbps range. ADI is committed to embracing
this standard in its ultra-high-speed data-converter technology,
and FPGA manufacturers are actively integrating this protocol into
their high-performance platforms.
The JESD204A-compliant AD9128 offers high sampling rate and high
dynamic range, enabling multicarrier generation up to the Nyquist
frequency, and includes features such as an on-chip 32-bit NCO
(numerically-controlled oscillator), allowing flexible placement of
the IF (intermediate frequency), complex digital modulation, and
gain and offset compensation. A 4-wire serial port interface
provides for programming and read-back of many of the device’s
internal parameters and functions. The AD9128 supports GSM, WCDMA,
TD-SCDMA, CDMA2000, WiMAX, and LTE wireless communications
standards.
View the AD9128 D/A converter product page, order samples, and
download the data sheet: www.analog.com/AD9128
AD9128 Dual 16-bit D/A Converter for Transmit Signal Chain IF
Synthesis
- 1.25 GSPS capability supports IF
bandwidths up to 500 MHz
- Excellent dynamic range:
80 dBc @ fDAC = 200 MSPS, fOUT = 50 MHz
72 dBc @ fDAC = 800 MSPS, fOUT = 70 MHz
- Single-carrier W-CDMA ACLR = 82 dBc @
122.88 MHz IF
- Novel 2×/4×/8× interpolator/complex
modulator allows carrier placement anywhere within the DAC’s
bandwidth
- Analog output: adjustable 8.7 mA to
31.7 mA, RL = 25 Ω to 50 Ω
- 4 lanes of high-speed JESD204A serial
links (each capable of 3.125 Gbps)
Pricing, Availability and Complementary Products
Product Sample
Availability Production Release
Resolution
(Bits)
Channels Sample Rate
(GSPS)
Price Each In 1,000 Quantities
Packaging AD9128 Now July
16 2 1.25 $34.50
56-lead
LFCSP
The AD9128 high-speed D/A converter’s analog outputs are
optimized to interface seamlessly with analog quadrature
modulators, such as ADI’s ADL537x F-MOD series, and the ADCLK914
clock/data buffer that drives the AD9128 D/A converter with clock
input jitter performance of 110 fs. Other complementary parts
include the ADRF6702 quadrature modulator and ADRF6602 Rx
mixer.
Get support at ADI’s EngineerZone™ online technical support
community:
http://ez.analog.com/community/data_converters/high-speed_dacs
About Analog Devices
Innovation, performance, and excellence are the cultural pillars
on which Analog Devices has built one of the longest standing,
highest growth companies within the technology sector. Acknowledged
industry-wide as the world leader in data conversion and signal
conditioning technology, Analog Devices serves over 60,000
customers, representing virtually all types of electronic
equipment. Analog Devices is headquartered in Norwood,
Massachusetts, with design and manufacturing facilities throughout
the world. Analog Devices is included in the S&P 500 Index.
http://www.analog.com.
*Analog Devices, Inc. leads the worldwide data converter market
with a 46 percent share, according to industry analyst firm
Databeans, Inc. in its market research report titled “2010 Data
Converters.” Analog Devices’ 46 percent share is larger than the
combined market share of the nearest eight competitors.
Follow ADI on Twitter at http://www.twitter.com/ADI_News
Subscribe to Analog Dialogue, ADI’s monthly technical journal,
at: http://www.analog.com/library/analogDialogue/
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