Description

The DAC161S997RGHT is a high-speed 16-bit dual channel Digital-to-Analog Converter (DAC) designed for multi-carrier and broadband wireless transmitters. It has selectable x2, x4, and x8 interpolation filters and can operate at sample rates of up to 1 Gsps. The DAC161S997RGHT can be powered by a 3.3V and a 1.8V source and supports a differential scalable output current of up to 34 mA.

Specifications and features

• Dual-channel 16-bit resolution
• Synchronization of multiple DAC devices
• 1 Gsps maximum update rate
• 3-wire or 4-wire mode SPI interface
• Selectable x2, x4 and x8 interpolation filters
• Differential scalable output current from 8.1 mA to 34 mA
• Very low noise capacitor-free integrated Phase-Locked Loop (PLL)
• External analog offset control (10-bit auxiliary DACs)
• Embedded Numerically Controlled Oscillator (NCO) with 40-bit programmable frequency
• High resolution internal digital gain and offset control to support high performance IQ-modulator image rejection
• Embedded complex(I/Q) digital IF modulator
• Internal phase correction
• 1.8 V and 3.3 V power supplies
• Inverse (sin x) / x function
• LVDS DDR compatible input interface with on-chip 100 Ω terminations
• Power-down mode and Sleep mode; 5-bit NCO low-power mode
• LVDS DDR input clock up to 370 MHz
• On-chip 1.25 V reference
• LVDS or LVPECL compatible DAC clock
• Industrial temperature range -40 °C to +85 °C
• Interleaved or folded I and Q data input mode
• 72 pins small form factor HVQFN package

Application Scenarios

• Wireless infrastructure: LTE, WiMAX, GSM, CDMA, WCDMA, TD-SCDMA
• Communications: LMDS/MMDS, point-to-point
• Direct Digital Synthesis (DDS)
• Broadband wireless systems
• Digital radio links
• Instrumentation
• Automated Test Equipment (ATE)

Comparison

- High-speed 16-bit dual channel DAC with selectable interpolation filters

- Optimized for multi-carrier and broadband wireless transmitters

- Can operate at sample rates of up to 1 Gsps

- Supports differential scalable output current up to 34 mA

- Compatible with a wide range of application scenarios

- Requires a 3.3V and a 1.8V power source

- Limited to a small form factor HVQFN package with 72 pins