V62/06638-01XE中文资料德州仪器数据手册PDF规格书

1FEATURES

• 10-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):

80 dBc at 5 MHz

• High Third-Order Two-Tone Intermodulation

(IMD3): 78 dBc at 15.1 MHz and 16.1 MHz

• Independent or Single Resistor Gain Control

• Dual or Interleaved Data

• On-Chip 1.2 V Reference

• Low Power: 290 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)

SUPPORTS DEFENSE, AEROSPACE,

AND MEDICAL APPLICATIONS

• Controlled Baseline

• One Assembly and Test Site

• One Fabrication Site

• Available in Military (–55°C to 125°C)

Temperature Range

• Extended Product Life Cycle

• Extended Product-Change Notification

• Product Traceability

DESCRIPTION/ORDERING INFORMATION

The DAC5652 is a monolithic, dual channel, 10-bit, high speed, digital-to-analog converter (DAC) with on-chip

voltage reference.

Operating with update rates of up to 200 MSPS, the DAC5652 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 of 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 DAC5652 has two 10-bit parallel input ports with separate clocks and data latches. For flexibility, the

DAC5652 also supports multiplexed data for each DAC on one port when operating in the interleaved mode.

The DAC5652 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, 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.