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DAC5652IPFB-DAC5652IPFBG4-DAC5652IPFBR
10 bit 275 MSPS Dual Digital to Analog Converter
DAC5652
www.ti.com SLAS452C –MARCH 2005–REVISED DECEMBER 2010
DUAL, 10-BIT 275 MSPS DIGITAL-TO-ANALOG CONVERTER
Checkfor Samples: DAC5652
1FEATURES • Power-Down Mode:9 mW 10-Bit Dual Transmit Digital-to-Analog • Package: 48-Pin Thin-Quad Flat Pack (TQFP)
Converter (DAC)
APPLICATIONS• 275 MSPS Update Rate Cellular Base Transceiver Station Transmit• Single Supply: 3.0Vto 3.6V Channel• High Spurious-Free Dynamic Range (SFDR): – CDMA: W-CDMA, CDMA2000, IS-9580 dBcat5 MHz – TDMA: GSM, IS-136, EDGE/UWC-136• High Third-Order Two-Tone Intermodulation • Medical/Test Instrumentation(IMD3): 78 dBcat 15.1 MHz and 16.1 MHz • Arbitrary Waveform Generators (ARB)• Independentor Single Resistor Gain Control • Direct Digital Synthesis (DDS)• Dualor Interleaved Data • Cable Modem Termination System (CMTS)• On-Chip 1.2-V Reference Low Power: 290 mW
DESCRIPTIONThe DAC5652isa monolithic, dual-channel, 10-bit, high-speed DAC with on-chip voltage reference.
Operating with update ratesof up to 275 MSPS, the DAC5652 offers exceptional dynamic performance,
tight-gain, and offset matching characteristics that makeit suitable in either I/Q baseband or direct IF
communication applications.
Each DAC hasa high-impedance, differential-current output, suitable for single-ended or differential
analog-output configurations. External resistors allow scalingof the full-scale output current for each DAC
separately or together, typically between2 mA and 20 mA. An accurate on-chip voltage referenceis
temperature-compensated and deliversa stable 1.2-V reference voltage. Optionally, an external reference may used.
The DAC5652 has two, 10-bit, parallel input ports with separate clocks and data latches. For flexibility, the
DAC5652 also supports multiplexed datafor each DACon one port when operatingin the interleaved mode.
The DAC5652 has been specifically designed fora differential transformer-coupled output witha 50-Ω Fora 20-mA full-scale output current, botha 4:1 impedance ratio (resultinginan output impedance ratio transformer (–2 dBm output power) are supported. TQFP package. Pin compatibility between family members provides 10-bit and 14-bit (DAC5672) resolution. Furthermore, the DAC5652is pin compatibletois characterized over the industrial temperature
