DAC5672-EP - 军用增强型塑料数模转换器

DAC5672-EP是TI德州仪器公司的一款高速DAC(>10MSPS)产品，DAC5672-EP是军用增强型塑料数模转换器，本站介绍了DAC5672-EP的封装应用图解、特点和优点、功能等，并给出了与DAC5672-EP相关的TI元器件型号供参考。

DAC5672-EP - 军用增强型塑料数模转换器 - 高速DAC(>10MSPS) - 数模转换器 - 德州仪器

产品描述

The DAC5672 is a monolithic, dual-channel, 14-bit, high-speed digital-to-analog converter (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 thin quad flat pack (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 military temperature range of -55°C to 125°C.

产品特性

Controlled Baseline
- One Assembly
- One Test Site
- One Fabrication Site
Extended Temperature Performance of -55°C to 125°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree(1)
14-Bit Dual Transmit Digital-to-Analog Converter (DAC)
200-MSPS Update Rate
Single Supply: 3 V to 3.6 V
High Spurious-Free Dynamic Range (SFDR): 84 dBc at 5 MHz
High Third-Order Two-Tone Intermodulation (IMD3): 79 dBc at 15.1 MHz and 16.1 MHz
WCDMA Adjacent Channel Leakage Ratio (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
Package: 48-Pin Thin-Quad Flat Pack (TQFP)
APPLICATIONS
- Cellular Base Transceiver Station Transmit Channel
  - CDMA: W-CDMA, CDMA2000, IS-95
  - TDMA: GSM, IS-136, EDGE/UWC-136
- Medical/Test Instrumentation
- Arbitrary Waveform Generators (ARB)
- Direct Digital Synthesis (DDS)
- Cable Modem Termination System (CMTS)

(1) Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

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