DAC38RF93 Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) | TI.com

DAC38RF93
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Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

 

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

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Part number Order Resolution (Bits) Sample/update rate (MSPS) DACs (#) Interpolation Power consumption (Typ) (mW) Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
DAC38RF93 Order now 14     9000     2     12x
16x
18x
20x
24x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF80 Samples not available 14     9000     2     10x
12x
16x
18x
20x
24x
6x
8x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF82 Samples not available 14     9000     2     10x
12x
16x
18x
1x
20x
24x
2x
4x
6x
8x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF83 Samples not available 14     9000     2     10x
12x
16x
18x
20x
24x
6x
8x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF84 Samples not available 14     9000     1     10x
12x
16x
18x
20x
24x
6x
8x    
2195     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF85 Samples not available 14     9000     1     10x
12x
16x
18x
20x
24x
6x
8x    
2195     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF86 Samples not available 14     9000     2     10x
12x
16x
18x
20x
24x
6x
8x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF87 Samples not available 14     6200     2     10x
12x
16x
18x
20x
24x
6x
8x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF89 Samples not available 14     8400     2     10x
12x
16x
18x
1x
20x
24x
2x
4x
6x
8x    
3800     -40 to 85     FCBGA | 144     144FCBGA: 100 mm2: 10 x 10 (FCBGA | 144)    
DAC38RF90 Samples not available 14     9000