AD9866 Просмотр технического описания (PDF) - Analog Devices
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AD9866 Datasheet PDF : 48 Pages
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AD9866
Parameter
−3 dB Bandwidth
Stop Band Rejection (0.289 fOSCIN to 0.711 fOSCIN)
PLL CLK MULTIPLIER
OSCIN Frequency Range
Internal VCO Frequency Range
Duty Cycle
OSCIN Impedance
CLKOUT1 Jitter5
CLKOUT2 Jitter6
CLKOUT1 and CLKOUT2 Duty Cycle7
Temp Test Level Min
Typ
Full V
0.1202
Full V
50
Full IV
Full
IV
Full II
25°C V
25°C III
25°C III
Full III
5
20
40
100//3
12
6
45
Max
Unit
fOUT /fDAC
dB
80
MHz
200 MHz
60
%
ΜΩ//pF
ps rms
ps rms
55
%
1 Gain error and gain temperature coefficients are based on the ADC only (with a fixed 1.23 V external reference and a 1 V p-p differential analog input).
2 TxDAC IOUTFS = 20 mA, differential output with 1:1 transformer with source and load termination of 50 Ω, FOUT = 5 MHz, 4× interpolation.
3 IOUN full-scale current = 80 mA, fOSCIN= 80 MHz, fDAC=160 MHz, 2× interpolation.
4 Use external amplifier to drive additional load.
5 Internal VCO operates at 200 MHz , set to divide-by-1.
6 Because CLKOUT2 is a divided down version of OSCIN, its jitter is typically equal to OSCIN.
7 CLKOUT2 is an inverted replica of OSCIN, if set to divide-by-1.
RX PATH SPECIFICATIONS
Table 2. AVDD = 3.3 V ± 5%, DVDD = CLKVDD = DRVDD = 3.3 V ± 10%; half- or full-duplex operation with CONFIG = 0 default
power bias settings, unless otherwise noted
Parameter
Temp Test Level
Min Typ
Max Unit
Rx INPUT CHARACTERISTICS
Input Voltage Span (RxPGA gain = −10 dB)
Full III
6.33
V p-p
Input Voltage Span (RxPGA gain = +48 dB)
Full III
8
mV p-p
Input Common-Mode Voltage
25°C III
1.3
V
Differential Input Impedance
25°C III
400
Ω
4.0
pF
Input Bandwidth (with RxLPF Disabled, RxPGA = 0 dB)
25°C III
53
MHz
Input Voltage Noise Density (RxPGA Gain = 36 dB, f−3 dBF = 26 MHz) 25°C III
Input Voltage Noise Density (RxPGA Gain = 48 dB, f−3 dBF = 26 MHz) 25°C III
2.7
nV/rtHz
2.4
nV/rtHz
RxPGA CHARACTERISTICS
Minimum Gain
25°C III
−12
dB
Maximum Gain
25°C III
48
dB
Gain Step Size
25°C III
1
dB
Gain Step Accuracy
25°C III
Monotonic
dB
Gain Range Error
25°C III
0.5
dB
RxLPF CHARACTERISTICS
Cutoff Frequency (f−3 dBF ) range
Full III
15
35
MHz
Attenuation at 55.2 MHz with f−3 dBF = 21 MHz
25°C III
20
dB
Pass-Band Ripple
25°C III
±1
dB
Settling Time to 5 dB RxPGA Gain Step @ fADC = 50 MSPS
Settling Time to 60 dB RxPGA Gain Step @ fADC = 50 MSPS
25°C III
25°C III
20
ns
100
ns
ADC DC CHARACTERISTICS
Resolution
NA
NA
12
Bits
Conversion Rate
FULL II
5
80
MSPS
RX PATH LATENCY1
Full-Duplex Interface
Full V
10.5
Cycles
Half-Duplex Interface
Full V
10.0
Cycles
Rev. 0 | Page 4 of 48
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