Rx Path Specifications - Analog Devices AD9865 Manual

AD9865
Parameter
Tx DIGITAL FILTER CHARACTERISTICS (4× Interpolation)
Latency (Relative to 1/ F )
DAC
−0.2 dB Bandwidth
−3 dB Bandwidth
Stop Band Rejection (0.289 f
OSCIN
PLL CLK MULTIPLIER
OSCIN Frequency Range
Internal VCO Frequency Range
Duty Cycle
OSCIN Impedance
5
CLKOUT1 Jitter
CLKOUT2 Jitter 6
CLKOUT1 and CLKOUT2 Duty Cycle
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, F
3 IOUN full-scale current = 80 mA, f
OSCIN
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

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.
Table 2.
Parameter
Rx INPUT CHARACTERISTICS
Input Voltage Span (RxPGA Gain = −10 dB)
Input Voltage Span (RxPGA Gain = +48 dB)
Input Common-Mode Voltage
Differential Input Impedance
Input Bandwidth (with RxLPF Disabled, RxPGA = 0 dB)
Input Voltage Noise Density (RxPGA Gain = 36 dB, f
Input Voltage Noise Density (RxPGA Gain = 48 dB, f
RxPGA CHARACTERISTICS
Minimum Gain
Maximum Gain
Gain Step Size
Gain Step Accuracy
Gain Range Error
RxLPF CHARACTERISTICS
Cutoff Frequency (f ) Range
−3 dBF
Attenuation at 55.2 MHz with f
Pass-Band Ripple
Settling Time to 5 dB RxPGA Gain Step @ f
Settling Time to 60 dB RxPGA Gain Step @ f
ADC DC CHARACTERISTICS
Resolution
Conversion Rate
to 0.711 f )
OSCIN
7
= 80 MHz, f =160 MHz, 2x interpolation.
DAC
= 26 MHz)
−3 dBF
= 26 MHz)
−3 dBF
= 21 MHz
−3 dBF
= 50 MSPS
ADC
= 50 MSPS
ADC
Rev. A | Page 4 of 48
Temp Test Level Min
Full V
Full V
Full V
Full V
Full IV 5
Full IV 20
Full II 40
25°C V
25°C III
25°C III
Full III 45
= 5 MHz, 4x interpolation.
OUT
Temp Test Level Min
Full III
Full III
25°C III
25°C III
25°C III
25°C III
25°C III
25°C III
25°C III
25°C III
25°C III
25°C III
Full III 15
25°C III
25°C III
25°C III
25°C III
NA NA
Full II 5
Typ Max Unit
96 Cycles
0.1095 f /f
OUT DAC
0.1202 f /f
OUT DAC
50 dB
80 MHz
200 MHz
60 %
100//3 ΜΩ/pF
12 ps rms
6 ps rms
55 %
Typ Max Unit
6.33 V p-p
8 mV p-p
1.3 V
400 Ω
4.0 pF
53 MHz
3.0 nV/rtHz
2.4 nV/rtHz
−12 dB
48 dB
1 dB
Monotonic dB
0.5 dB
35 MHz
20 dB
±1 dB
20 ns
100 ns
10 Bits
80 MSPS