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DAC34H84 数据表(PDF) 11 Page - Texas Instruments

部件名 DAC34H84
功能描述  DAC34H84 Quad-Channel, 16-Bit, 1.25 GSPS Digital-to-Analog Converter (DAC)
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

DAC34H84 数据表(HTML) 11 Page - Texas Instruments

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DAC34H84
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SLAS751D – MARCH 2011 – REVISED SEPTEMBER 2015
6.7 Electrical Characteristics – AC Specifications
over recommended operating free-air temperature range, nominal supplies, IOUTFS = 20mA (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG OUTPUT(1)
PLL OFF
1250
fDAC
Maximum DAC rate
MSPS
PLL ON
1000
AC PERFORMANCE(2)
fDAC = 1.25 GSPS, fOUT = 20 MHz
73
Spurious free dynamic range
SFDR
fDAC = 1.25 GSPS, fOUT = 50 MHz
70
dBc
(0 to fDAC/2) Tone at 0 dBFS
fDAC = 1.25 GSPS, fOUT = 70 MHz
66
fDAC = 1.25 MSPS, fOUT = 30 ± 0.5 MHz
87
Third-order two-tone intermodulation
distortion
IMD3
fDAC = 1.25 GSPS, fOUT = 50 ± 0.5 MHz
85
dBc
Each tone at –12 dBFS
fDAC = 1.25 GSPS, fOUT = 100 ± 0.5 MHz
78
fDAC = 1.25 GSPS, fOUT = 10 MHz
160
Noise Spectral Density(3)
NSD
dBc/Hz
Tone at 0dBFS
fDAC = 1.25 GSPS, fOUT = 80 MHz
155
fDAC = 1.2288 GSPS, fOUT = 30.72 MHz
77
Adjacent channel leakage ratio, single
carrier
fDAC = 1.2288 GSPS, fOUT = 153.6 MHz
74
ACLR(3)
dBc
fDAC = 1.2288 GSPS, fOUT = 30.72 MHz
82
Alternate channel leakage ratio, single
carrier
fDAC = 1.2288 GSPS, fOUT = 153.6 MHz
80
Channel Isolation
fDAC = 1.25 GSPS, fOUT = 10 MHz
95
dBc
(1)
Measured single ended into 50
Ω load.
(2)
4:1 transformer output termination, 50
Ω doubly terminated load
(3)
Single carrier, W-CDMA with 3.84 MHz BW, 5-MHz spacing, centered at IF, PAR = 12dB. TESTMODEL 1, 10 ms
6.8 Timing Requirements – Digital Specifications
MIN
NOM
MAX
UNIT
CLOCK INPUT (DACCLKP/N)
Duty cycle
40%
60%
DACCLKP/N input frequency
1250
MHz
OUTPUT STROBE (OSTRP/N)
fOSTR = fDACCLK / (n x 8 x Interp) where n is any positive
fDACCLK /
fOSTR
Frequency
MHz
integer, fDACCLK is DACCLK frequency in MHz
(8 x interp)
Duty cycle
50%
DIGITAL INPUT TIMING SPECIFICATIONS
Timing LVDS inputs: D[15:0]P/N, FRAMEP/N, SYNCP/N, PARITYP/N, double edge latching
Config36 Setting
datadly
clkdly
0
0
150
0
1
100
0
2
50
0
3
0
Setup time,
0
4
-50
DAB[15:0]P/N,
DCD[15:0]P/N,
0
5
-100
ISTRP/N,
ISTRP/N and SYNCP/N reset latched
ts(DATA)
0
6
-150
SYNCP/N and
only on rising edge of DATACLKP/N
0
7
-200
ps
PARITYP/N, valid
to either edge of
1
0
200
DATACLKP/N
2
0
250
3
0
300
4
0
350
5
0
400
6
0
450
7
0
500
Copyright © 2011–2015, Texas Instruments Incorporated
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