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DAC5662IPFBR Datasheet

  • DAC5662IPFBR

  • DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER

  • 289.89KB

  • 22頁

  • TI

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DAC5662
www.ti.com
SLAS425 鈥?JULY 2004
DUAL, 12-BIT 200 MSPS DIGITAL-TO-ANALOG CONVERTER
FEATURES
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12-Bit Dual Transmit DAC
200 MSPS Update Rate
Single Supply: 3.0 V - 3.6 V
High SFDR: 85 dBc at 5 MHz
High IMD3: 78 dBc at 15.1 and 16.1 MHz
WCDMA ACLR: 70 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: 15 mW
Package: 48-Pin TQFP
APPLICATIONS
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Cellular Base Transceiver Station Transmit
Channel
鈥?CDMA: W-CDMA, CDMA2000, IS-95
鈥?TDMA: GSM, IS-136, EDGE/UWC-136
Medical/Test Instrumentation
Arbitrary Waveform Generators (ARB)
Direct Digital Synthesis (DDS)
Cable Modem Termination System (CMTS)
WRTB
WRTA
CLKB
CLKA
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DE
MUX
Latch A
DA[11:0]
12鈭抌 DAC
IOUTA1
IOUTA2
BIASJ_A
IOUTB1
DB[11:0]
MODE
GSET
1.2 V Reference
SLEEP
EXTIO
Latch B
12鈭抌 DAC
IOUTB2
BIASJ_B
DVDD
DGND
AVDD
AGND
Figure 1.
DESCRIPTION
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-鈩?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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2004, Texas Instruments Incorporated

DAC5662IPFBR 產品屬性

  • Data Converter Basics

  • 1,000

  • 集成電路 (IC)

  • 數據采集 - 數模轉換器

  • -

  • 20ns

  • 12

  • 并聯(lián)

  • 2

  • 模擬和數字

  • 390mW

  • -40°C ~ 85°C

  • 表面貼裝

  • 48-TQFP

  • 48-TQFP（7x7）

  • 帶卷 (TR)

  • 4 電流，單極

  • 200M

  • 296-30858-ND - EVAL MODULE FOR DAC5662

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