Analog Devices’ DOCSIS 3.0-Compliant RF D/A Converter Operates at One-Third the Power of Competing Devices & Reduces PCB Sp...
October 15 2012 - 11:05PM
Business Wire
Analog Devices, Inc. (ADI), a global leader in high-performance
signal processing technology and the data converter market share
leader*, today introduced two RF (radio frequency) D/A converters
that are able to synthesize the entire downstream (transmit) cable
spectrum from a single RF port. Supporting data rates up to 2.8
GSPS, the single-channel, 14-bit AD9129 and 11-bit AD9119 RF D/A
converters allow cable operators to reduce the total system power
and component count of CATV (CMTS) infrastructure equipment,
simplify system design, and lower total bill of material costs. The
new RF D/A converters support from one to as many as 158 CATV
carriers and include an optional 2× interpolation filter that
reduces output filtering complexity by effectively increasing the
D/A converter update rate by a factor of two. In its Mix-Mode™
super-Nyquist operation, the AD9129 can reconstruct spectrally-pure
RF carriers in the 2nd and 3rd Nyquist zones, eliminating a mixing
stage while still maintaining exceptional dynamic range at up to
4.2 GHz.
- Download data sheet, view product page,
and request samples: http://www.analog.com/AD9129
- Download data sheet, view product page,
and request samples: http://www.analog.com/AD9119
“The AD9129 RF D/A converter utilizes ADI’s patented quad-switch
architecture to synthesize the full dc-to-1.4 GHz baseband output
spectrum, which will greatly simplify and improve downstream DOCSIS
3.0-compliant transmitter design,” said Carlton Lane, marketing
manager, High-speed D/A Converter group, Analog Devices. “This D/A
converter’s new level of performance and functionality enables
cable infrastructure equipment manufacturers to implement the
complete downstream signal chain in a smaller footprint, at
one-third the power, and using fewer signal chain components. These
are all important design considerations in today’s CMTS service
environment.”
More About the AD9129 14-bit RF D/A Converter
The AD9129 RF D/A converter enables industry leading direct RF
synthesis performance with minimal loss of output power across its
output spectrum. The device also enables dual-edge clocking
operation, effectively increasing the converter update rate to 5.6
GSPS when configured for Mix-Mode or 2× interpolation mode. Its
high dynamic range and bandwidth enable multicarrier generation up
to 4.2 GHz. The device dissipates only 1.1 W at the full 2.8-GSPS
D/A converter update rate.
The AD9129 includes a dual-port, source-synchronous LVDS
(low-voltage differential signaling) interface that simplifies the
data interface to a host FPGA or ASIC. On chip DLLs (delay-locked
loops) optimize timing between different clock domains, while an
SPI (serial peripheral interface) is used to configure the AD9129
and monitor the status of read-back registers.
AD9129/19 Single-channel D/A Converters Features and
Benefits:
- D/A converter update rate of up to 5.6
GSPS
- Direct RF synthesis @ 2.8 GSPS data
rate
- DC-to-1.4 GHz in baseband mode
- DC-to-1.0 GHz in 2× interpolation
mode
- 1.4-to-4.2 GHz in Mix-Mode
- 1 to 158 DOCSIS 3.0 carriers: 8 QAM
carrier ACLR = > 69 dBc
- By-passable 2× interpolation
filters
- Single/multicarrier IF or RF
synthesis
- Low power: 1.1 W @ 2.8 GSPS (1.3 W @
5.6 GSPS)
Pricing, Availability and Complementary Products
Product
Sample Availability
Production Release
Resolution
(Bits)
Sample Rate
(GSPS)
Price Each In 1,000
Quantities
Packaging
AD9129
Now
November30
14 2.8
$59.00
(Pb-free)
160-BallCSP-BGA
AD9129
Now
November30
14 2.8
$69.00
(PbSn)
160-BallCSP-BGA
AD9119
Now
November30
11 2.8
$49.00
(Pb-free)
160-BallCSP-BGA
Other Analog Devices parts that are complementary to the AD9129
RF D/A converter are the ADF4351 wideband PLL (phase-locked loop)
for use as the D/A converter clock, and the ADCLK925 low-jitter
clock buffer.
- Get support at ADI’s EngineerZone™
online DAC technical support community:
http://ez.analog.com/community/data_converters/high-speed_dacs
- Learn more about ADI’s high-speed D/A
converter product portfolio at:
http://www.analog.com/en/digital-to-analog-converters/high-speed-da-converters/products/index.html
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. Celebrating over 40 years as a leading global
manufacturer of high-performance integrated circuits used in analog
and digital signal processing applications, Analog Devices is
headquartered in Norwood, Massachusetts, with design and
manufacturing facilities throughout the world. Analog Devices'
common stock is listed on the NASDAQ stock exchange under the
ticker “ADI” and is included in the S&P 500 Index.
http://www.analog.com
* Analog Devices, Inc. leads the worldwide data converter market
with a 48 percent share, according to industry analyst firm
Databeans, Inc. in its market research report titled “2011 Data
Converters.” Analog Devices’ 48 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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