DAC38RF85 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) | TI.com

DAC38RF85 (ACTIVE)

14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) - DAC38RF85
 

Description

The DAC38RFxx is a family of high-performance, dual/single-channel, 14-bit, 9-GSPS, RF-sampling digital-to-analog converters (DACs) that are capable of synthesizing wideband signals from 0 to 4.5 GHz. A high dynamic range allows the DAC38RFxx family to generate signals for a wide range of applications including 3G/4G signals for wireless base-stations and radar.

The devices feature a low-power JESD204B Interface with up to 8 lanes with a maximum bit rate of 12.5 Gbps allowing an input data rate of 1.25 GSPS complex per channel. The DAC38RFxx provides two digital up-converters per channel, with multiple options for interpolation rates. A digital quadrature modulator with independent, frequency flexible NCOs are available to support multi-band operation. An optional low-jitter PLL/VCO simplifies the DAC sampling clock generation by allowing use of a lower frequency reference clock.

Features

  • 14-Bit Resolution
  • Maximum DAC Sample Rate: 9 GSPS
  • Key Specifications:
    • RF Full-Scale Output Power at 2.1 GHz:
      • DAC38RF80/90/84: 0 dBm
      • DAC38RF83/93/85: 3 dBm (with 2:1 balun)
    • Spectral Performance(on-chip PLL, DIFF):
      • fDAC = 5898.24 MSPS, fOUT = 2.14 GHz
        • WCDMA ACLR: 75 dBc
        • WCDMA alt-ACLR: 77 dBc
      • fDAC = 8847.36 MSPS, fOUT = 3.7 GHz
        • 20 MHz LTE ACLR: 63 dBc
      • fDAC = 9 GSPS, fOUT = 1.8 GHz
        • IMD3 = 70 dBc (–6 dBFS, 10-MHz tone spacing)
        • NSD = –157 dBc/Hz
  • Dual-Band Digital Up-converter per DAC
    • 6, 8, 10, 12, 16, 18, 20 or 24x Interpolation
    • 4 Independent NCOs With 48-Bit Resolution
  • JESD204B Interface, Subclass 1
    • Support for Multichip Synchronization
    • Maximum Lane Rate: 12.5 Gbps
  • Single-Ended Output With Integrated Balun (DAC38RF80/90/84) Covering 700 MHz to 3800 MHz
  • Internal PLL and VCO With Bypass
    • fC(VCO) = 5.9 or 8.9 GHz
  • Power Dissipation: 1.4 to 2.2 W/ch
  • Power Supplies: –1.8 V, 1 V, 1.8 V
  • Package: 10 x 10 mm BGA, 0.8 mm Pitch, 144-Balls

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Parametrics Compare all products in High Speed DACs (>10MSPS)

 
Sample / Update Rate (MSPS)
Features
Internal PLL
Resolution (Bits)
DAC Channels
Interface
SFDR (dB)
Supply Voltage(s) (V)
Power Consumption (Typ) (mW)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Rating
Interpolation
Output Power (dBm)
Architecture
Output Type
Reference: Type
DAC38RF85 DAC38RF80 DAC38RF82 DAC38RF83 DAC38RF84 DAC38RF86 DAC38RF87 DAC38RF89 DAC38RF90 DAC38RF93 DAC38RF96 DAC38RF97
9000     9000     9000     9000     9000     9000     6200     8400     9000     9000     9000     6200    
Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed     Ultra High Speed    
6, 9 GHz     6, 9 GHz     6, 9 GHz     6, 9 GHz     6, 9 GHz     9 GHz GSM     6 GHz GSM     5, 7.5 GHz     6, 9 GHz     6, 9 GHz     9 GHz GSM     6 GHz GSM    
14     14     14     14     14     14     14     14     14     14     14     14    
1     2     2     2     1     2     2     2     2     2     2     2    
JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B     JESD204B    
72     72     72     72     72     72     72     72     72     72     72     72    
-1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8 , 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8     -1.8, 1.0, 1.8    
2195     3800     3800     3800     2195     3800     3800     3800     3800     3800     3800     3800    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA     FCBGA    
See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)     See datasheet (FCBGA)