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AD9119-CBLTX-EBZ View Datasheet(PDF) - Analog Devices

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AD9119-CBLTX-EBZ Datasheet PDF : 68 Pages
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Data Sheet
FEATURES
DAC update rate: up to 5.6 GSPS
Direct RF synthesis at 2.8 GSPS data rate
DC to 1.4 GHz in baseband mode
DC to 1.0 GHz in 2× interpolation mode
1.4 GHz to 4.2 GHz in Mix-Mode
Bypassable 2× interpolation
Excellent dynamic performance
Supports DOCSIS 3.0 wideband ACLR/harmonic performance
8 QAM carriers: ACLR > 65 dBc
Industry-leading single/multicarrier IF or RF synthesis
4-carrier W-CDMA ACLR at 2457.6 MSPS
fOUT = 900 MHz, ACLR = 71 dBc (baseband mode)
fOUT = 2100 MHz, ACLR = 68 dBc (Mix-Mode)
fOUT = 2700 MHz, ACLR = 67 dBc (Mix-Mode)
Dual-port LVDS and DHSTL data interface
Up to 1.4 GSPS operation
Source synchronous DDR clocking with parity bit
Low power: 1.0 W at 2.8 GSPS (1.3 W at 5.6 GSPS)
APPLICATIONS
Broadband communications systems
CMTS/VOD
Wireless infrastructure: W-CDMA, LTE, point-to-point
Instrumentation, automatic test equipment (ATE)
Radars, jammers
GENERAL DESCRIPTION
The AD9119/AD9129 are high performance, 11-/14-bit RF digital-
to-analog converters (DACs) supporting data rates up to 2.8 GSPS.
The DAC core is based on a quad-switch architecture that enables
dual-edge clocking operation, effectively increasing the DAC
update rate to 5.6 GSPS when configured for Mix-Mode™ or 2×
interpolation. The high dynamic range and bandwidth enable
multicarrier generation up to 4.2 GHz.
In baseband mode, wide bandwidth capability combines with high
dynamic range to support from 1 to 158 contiguous carriers for
CATV infrastructure applications. A choice of two optional 2×
interpolation filters is available to simplify the postreconstruction
filter by effectively increasing the DAC update rate by a factor of 2.
In Mix-Mode operation, the AD9119/AD9129 can reconstruct
RF carriers in the second and third Nyquist zone while still
maintaining exceptional dynamic range up to 4.2 GHz. The
high performance NMOS DAC core features a quad-switch
architecture that enables industry-leading direct RF synthesis
performance with minimal loss in output power. The output
current can be programmed over a range of 9.5 mA to 34.4 mA.
Rev. 0
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
11-/14-Bit, 5.6 GSPS,
RF Digital-to-Analog Converter
AD9119/AD9129
FUNCTIONAL BLOCK DIAGRAM
RESET
IRQ
I250U VREF
SDIO
SDO
CS
SCLK
FRM_x
(FRAME/
PARITY)
P0_D[13:0]P,
P0_D[13:0]N
DCI_x
SPI
DLL
AD9129
1.2V
MIX-
NORMAL MODE
BASEBAND
MODE
Tx DAC
CORE
IOUTP
IOUTN
P1_D[13:0]P,
P1_D[13:0]N
PLL
DCO_x
CLOCK
DISTRIBUTION
Figure 1.
DCR
DACCLK_x
The AD9119/AD9129 include several features that may further
simplify system integration. A dual-port, source synchronous
LVDS interface simplifies the data interface to a host FPGA/ASIC.
A differential frame/parity bit is also included to monitor the
integrity of the interface. On-chip delay locked loops (DLLs)
are used to optimize timing between different clock domains.
A serial peripheral interface (SPI) is used to configure the
AD9119/AD9129 and monitor the status of readback registers.
The AD9119/AD9129 is manufactured on a 0.18 µm CMOS
process and operates from +1.8 V and −1.5 V supplies. It is
supplied in a 160-ball chip scale package ball grid array.
PRODUCT HIGHLIGHTS
1. High dynamic range and signal reconstruction bandwidth
support RF signal synthesis of up to 4.2 GHz.
2. Dual-port interface with double data rate (DDR) LVDS
data receivers supports 2800 MSPS maximum conversion rate.
3. Manufactured on a CMOS process; a proprietary switching
technique enhances dynamic performance.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
 

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