DAC38RF82_17 Datasheet, PDF (15/140 Pages) Texas Instruments – Dual-Channel, Differential-Output, 14-Bit, 9-GSPS, RF-Sampling DAC With JESD204B Interface, On-Chip PLL and Wide-Band Interpolation

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DAC38RF82, DAC38RF89
SLASEA6B – FEBRUARY 2017 – REVISED AUGUST 2017
Electrical Characteristics - AC Specifications (continued)
Typical values at T_A = 25°C, full temperature range is T_MIN = –40°C to T_MAX = 85°C, external differential clock mode at 9
GSPS, 12x Interpolation, 0 dBFS, f_OUT = 2.14 GHz, I_(OUTFS) = 40 mA, nominal supplies, LMFSHd = 84111, unless otherwise
noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
NSD
NSD
(on-chip
PLL)
Isolation
Noise Spectral Density > 50 MHz
offset ⁽¹⁾
Noise Spectral Density > 50 MHz offset
On-chip PLL enabled
Isolation between DAC A and DAC B
analog output
f_CLK = 6 GHz , f_OUT = 501 MHz
f_CLK = 6 GHz , f_OUT = 951 MHz
f_CLK = 6 GHz , f_OUT = 1851 MHz
f_CLK = 6 GHz , f_OUT = 2651 MHz
f_CLK = 9 GHz , f_OUT = 501 MHz
f_CLK = 9 GHz , f_OUT = 951 MHz
f_CLK = 9 GHz , f_OUT = 1851 MHz
f_CLK = 9 GHz , f_OUT = 2651 MHz
f_CLK = 9 GHz , f_OUT = 3651 MHz
f_CLK = 6 GHz , f_OUT = 501 MHz, –9 dBFS
f_CLK = 6 GHz , f_OUT = 951 MHz, –9 dBFS
f_CLK = 6 GHz , f_OUT = 1851 MHz, –9 dBFS
f_CLK = 9 GHz , f_OUT = 2651 MHz, –9 dBFS
f_CLK = 9 GHz , f_OUT = 3651 MHz, –9 dBFS
f_CLK = 5 GHz , f_OUT = 501 MHz
f_CLK = 5 GHz , f_OUT = 951 MHz
f_CLK = 5 GHz , f_OUT = 1851 MHz
f_CLK = 7.5 GHz , f_OUT = 501 MHz
f_CLK = 7.5 GHz , f_OUT = 951 MHz
f_CLK = 7.5 GHz , f_OUT = 1851 MHz
f_CLK = 7.5 GHz , f_OUT = 2651 MHz
f_CLK = 7.5 GHz , f_OUT = 3651 MHz
f_CLK = 5 GHz , f_OUT = 501 MHz, –9 dBFS
f_CLK = 5 GHz , f_OUT = 951 MHz, –9 dBFS
f_CLK = 5 GHz , f_OUT = 1851 MHz, –9 dBFS
f_CLK = 7.5 GHz , f_OUT = 2651 MHz, –9 dBFS
f_CLK = 7.5 GHz , f_OUT = 3651 MHz, –9 dBFS
f_OUT = 1856 MHz
f_OUT = 3105 MHz
–170
–163
–157
–155
–172
–166
–157
–156
–153
–172
–164
–162
–162
–159
–172
–166
–157
–173
–167
–159
–155
–151
–169
–167
–162
–162
–157
82
73
dBFS/Hz
dBFS/Hz
dBc
(1) Also valid for on-chip PLL enabled in DAC38RF82
7.8 PLL/VCO Electrical Characteristics
Typical values at T_A = 25°C, full temperature range is T_MIN = –40°C to T_MAX = 85°C, internal PLL/VCO clock mode, 12x
Interpolation, f_OUT = 1.8 GHz, I_(OUTFS) = 40 mA, nominal supplies, LMFSHd = 84111, unless otherwise noted.
PARAMETER
TEST CONDITIONS
DAC38RF82
DAC38RF89
UNIT
MIN TYP MAX MIN TYP MAX
PLL/VCO
f_ref
Reference clock
frequency
100
f_VCO 100
/4
f_VCO MHz
/4
f_PFD Frequency of phase &
frequency detector
100
500 100
500 MHz
f_vcoL Low VCO operating
frequency
5240
6720 4500
5600 MHz
f_vcoH High VCO operating
frequency
7960
9000 6600
8400 MHz
f_BW Loop filter bandwidth
Low VCO Phase Noise
500
500
KHz
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