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DAC1205D650 数据表(PDF) 1 Page - NXP Semiconductors

部件名 DAC1205D650
功能描述  Dual 12-bit DAC, up to 650 Msps; 2쨈 4쨈 and 8쨈 interpolating
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

DAC1205D650 数据表(HTML) 1 Page - NXP Semiconductors

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1.
General description
The DAC1205D650 is a high-speed 12-bit dual-channel Digital-to-Analog Converter
(DAC) with selectable 2
×, 4× or 8× interpolating filters optimized for multi-carrier wireless
transmitters.
Thanks to its digital on-chip modulation, the DAC1205D650 allows the complex I and Q
inputs to be converted up from BaseBand (BB) to IF. The mixing frequency is adjusted
using a Serial Peripheral Interface (SPI) with a 32-bit Numerically Controlled Oscillator
(NCO). The phase is controlled by a 16-bit register.
Two modes of operation are available: separate data ports or a single interleaved
high-speed data port. In the Interleaved mode, the input data stream is demultiplexed into
its original I and Q data and then latched.
The DAC1205D650 also includes a 2
×, 4× and 8× clock multiplier which provides the
appropriate internal clocks and an internal regulator to adjust the output full-scale current.
2.
Features
DAC1205D650
Dual 12-bit DAC, up to 650 Msps; 2
× 4× and 8× interpolating
Rev. 01 — 28 July 2009
Product data sheet
I Dual 12-bit resolution
I IMD3: 79 dBc; fs = 640 Msps; fo =96MHz
I 650 Msps maximum update rate
I ACPR: 68 dB; 2 carriers WCDMA;
fs = 614.4 Msps; fo = 115.2 MHz; PLL on
I Selectable 2×, 4× or 8× interpolation
filters
I Typical 0.95 W power dissipation at 4×
interpolation
I Input data rate up to 160 Msps
I Power-down and Sleep modes
I Very low noise cap-free integrated PLL I Differential scalable output current from
1.6 mA to 22 mA
I 32-bit programmable NCO frequency I On-chip 1.25 V reference
I Dual-port or Interleaved data modes
I External analog offset control
(10-bit auxiliary DACs)
I 1.8 V and 3.3 V power supplies
I Internal digital offset control
I LVDS compatible clock
I Inverse (sin x) / x function
I Two’s complement or binary offset
data format
I Fully compatible SPI port
I 3.3 V CMOS input buffers
I Industrial temperature range from
−40 °C to +85 °C


类似零件编号 - DAC1205D650

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