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DAC5672 Datasheet(PDF) 1 Page - Texas Instruments

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Part # DAC5672
Description  DUAL, 14-BIT 200 MSPS DIGITAL - TO - ANALOG CONVERTER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

DAC5672 Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
APPLICATIONS
DESCRIPTION
DAC5672
SLAS440 – NOVEMBER 2004
DUAL, 14-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER
Package: 48-Pin Thin-Quad Flat Pack (TQFP)
14-Bit Dual Transmit Digital-to-Analog
Converter (DAC)
Cellular Base Transceiver Station Transmit
200 MSPS Update Rate
Channel
Single Supply: 3.0 V to 3.6 V
– CDMA: W-CDMA, CDMA2000, IS-95
High Spurious-Free Dynamic Range (SFDR):
– TDMA: GSM, IS-136, EDGE/UWC-136
84 dBc at 5 MHz
Medical/Test Instrumentation
High Third-Order Two-Tone Intermodulation
Arbitrary Waveform Generators (ARB)
(IMD3): 79 dBc at 15.1 MHz and 16.1 MHz
Direct Digital Synthesis (DDS)
WCDMA Adjacent Channel Leakage Ratio
Cable Modem Termination System (CMTS)
(ACLR): 78 dB at Baseband
WCDMA ACLR: 73 dB at 30.72 MHz
Independent or Single Resistor Gain Control
Dual or Interleaved Data
On-Chip 1.2-V Reference
Low Power: 330 mW
Power-Down Mode: 9 mW
The DAC5672 is a monolithic, dual-channel, 14-bit, high-speed DAC with on-chip voltage reference.
Operating with update rates of up to 200 MSPS, the DAC5672 offers exceptional dynamic performance,
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 DAC5672 has two, 14-bit, parallel input ports with separate clocks and data latches. For flexibility, the
DAC5672 also supports multiplexed data for each DAC on one port when operating in the interleaved mode.
The DAC5672 has been specifically designed for a differential transformer-coupled output with a 50-
doubly-terminated load. For a 20-mA full-scale output current, both 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.
The DAC5672 is available in a 48-pin TQFP package. Pin compatibility between family members provides 12-bit
(DAC5662) and 14-bit (DAC5672) resolution. Furthermore, the DAC5672 is pin compatible to the DAC2904 and
AD9767 dual DACs. The device is characterized for operation over the industrial temperature range of -40
°C to
85
°C.
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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