AD9142A Series

Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter

Catalog

Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter

Part	Data Interface	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Differential Output	Architecture	Mounting Type	INL/DNL (LSB)	Reference Type	Settling Time	Number of Bits	Supplier Device Package	Output Type	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Sampling Rate (Per Second)	DAC Type	Utilized IC / Part	Supplied Contents	Number of DAC's
Analog Devices AD9142ABCPZRL	LVDS - Parallel	1.7 V	1.9 V		Oversampling Interpolating DAC	Surface Mount	2.1 LSB 3.7 LSB	External Internal	20 ns	16	72-LFCSP-VQ (10x10)	Current - Unbuffered	72-VFQFN Exposed Pad CSP	85 °C	-40 °C	3.13 V	3.47 V
Analog Devices AD9142A-M5372-EBZ	LVDS - Serial SPI								20 ns	16								1.8 G	Current	AD9142A ADL5372	Board(s) Cable(s)	2

Catalog

Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter

Key Features

• Supports input data rate up to 575 MHz

• Very small inherent latency variation: <2 DAC clock cycles

• Proprietary low spurious and distortion design6-carrier GSM ACLR = 79 dBc at 200 MHz IFSFDR > 85 dBc (bandwidth = 300 MHz) at ZIF

• 6-carrier GSM ACLR = 79 dBc at 200 MHz IF

• SFDR > 85 dBc (bandwidth = 300 MHz) at ZIF

• Flexible 16-bit LVDS interfaceSupports word and byte loadData interface DLLSample error detection and parity

• Supports word and byte load

• Data interface DLL

• Sample error detection and parity

• Multiple chip synchronizationFixed latency and data generator latency compensation

• Fixed latency and data generator latency compensation

• Selectable 2×, 4×, 8× interpolation filterLow power architecturefS/4 power saving coarse mixer

• Low power architecture

• fS/4 power saving coarse mixer

• Input signal power detectionEmergency stop for downstream analog circuitry protectionFIFO error detection

• Emergency stop for downstream analog circuitry protection

• FIFO error detection

• On-chip numeric control oscillator allows carrier placement anywhere in the DAC Nyquist bandwidth

• Transmit enable function for extra power saving

• High performance, low noise PLL clock multiplier

• Digital gain and phase adjustment for sideband suppression

• Digital inverse sinc filter

• Low power: 1.8 W at 1.6 GSPS, 1.5 W at 1.25 GSPS, full operating conditions

• 72-lead LFCSP

Description

The AD9142A is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a sample rate of 1600 MSPS, permitting a multicarrier generation up to the Nyquist frequency. The AD9142A TxDAC+®includes features optimized for direct conversion transmit applications, including complex digital modulation, input signal power detection, and gain, phase, and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series and the ADRF670x series from Analog Devices, Inc. A 3-wire serial port interface provides for the programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 9 mA to 33 mA. The AD9142A is available in a 72-lead LFCSP.PRODUCT HIGHLIGHTSWide signal bandwidth (BW) enables emerging wideband and multiband wireless applications.Advanced low spurious and distortion design techniques provide high quality synthesis of wideband signals from baseband to high intermediate frequencies.Very small inherent latency variation simplifies both software and hardware design in the system. It allows easy multichip synchronization for most applications.New low power architecture improves power efficiency (mW/MHz/channel) by 30%.Input signal power and FIFO error detection simplify designs for downstream analog circuitry protection.Programmable transmit enable function allows easy design balance between power consumption and wakeup time.APPLICATIONSWireless communications: 3G/4G and MC-GSM base stations,wideband repeaters, software defined radiosWideband communications: point-to-point, LMDS/MMDSTransmit diversity/MIMOInstrumentationAutomated test equipment