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DAC5662IPFBRG4 Folha de dados(PDF) 1 Page - Texas Instruments

Nome de Peças DAC5662IPFBRG4
Descrição Electrónicos  DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

DAC5662IPFBRG4 Folha de dados(HTML) 1 Page - Texas Instruments

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FEATURES
APPLICATIONS
DE
MUX
DA[11:0]
DB[11:0]
MODE
GSET
Latch A
Latch B
12−b DAC
12−b DAC
IOUTA1
IOUTA2
IOUTB1
IOUTB2
1.2 V Reference
WRTB
WRTA
CLKB
CLKA
BIASJ_A
BIASJ_B
EXTIO
DVDD
DGND
AVDD
AGND
SLEEP
DESCRIPTION
DAC5662
SLAS425 – JULY 2004
DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER
Cellular Base Transceiver Station Transmit
12-Bit Dual Transmit DAC
Channel
200 MSPS Update Rate
– CDMA: W-CDMA, CDMA2000, IS-95
Single Supply: 3.0 V - 3.6 V
– TDMA: GSM, IS-136, EDGE/UWC-136
High SFDR: 85 dBc at 5 MHz
Medical/Test Instrumentation
High IMD3: 78 dBc at 15.1 and 16.1 MHz
Arbitrary Waveform Generators (ARB)
WCDMA ACLR: 70 dB at 30.72 MHz
Direct Digital Synthesis (DDS)
Independent or Single Resistor Gain Control
Cable Modem Termination System (CMTS)
Dual or Interleaved Data
On-Chip 1.2-V Reference
Low Power: 330 mW
Power-Down Mode: 15 mW
Package: 48-Pin TQFP
Figure 1.
The DAC5662 is a monolithic, dual-channel 12-bit high-speed digital-to-analog converter (DAC) with on-chip
voltage reference.
Operating with update rates of up to 200 MSPS, the DAC5662 offers exceptional dynamic performance and
tight-gain and offset matching, characteristics that make it suitable in either I/Q baseband or direct IF
communication applications.
Each DAC has a high-impedance differential current output, suitable for single-ended or differential analog-output
configurations. External resistors allow scaling the full-scale output current for each DAC separately or together,
typically between 2 mA and 20 mA. An accurate on-chip voltage reference is temperature compensated and
delivers a stable 1.2-V reference voltage. Optionally, an external reference may be used.
The DAC5662 has two 12-bit parallel input ports with separate clocks and data latches. For flexibility, the
DAC5662 also supports multiplexed data for each DAC on one port when operating in the interleaved mode.
The DAC5662 has been specifically designed for a differential transformer coupled output with a 50-
Ω doubly
terminated load. For a 20-mA full-scale output current a 4:1 impedance ratio (resulting in an output power of
4 dBm) and 1:1 impedance ratio transformer (-2 dBm output power) are supported.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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