Analog Devices AD9854, User Manual

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AD9854
Rev. E | Page 6 of 52
AD9854ASVZ AD9854ASTZ
Parameter Temp
Test
Level
Min Typ Max Min Typ Max Unit
Residual Phase Noise
(A
OUT
= 5 MHz, External Clock = 30 MHz
REFCLK Multiplier Engaged at 10×)
1 kHz Offset 25°C V 140 140 dBc/Hz
10 kHz Offset 25°C V 138 138 dBc/Hz
100 kHz Offset 25°C V 142 142 dBc/Hz
(A
OUT
= 5 MHz, External Clock = 300 MHz,
REFCLK Multiplier Bypassed)
1 kHz Offset 25°C V 142 142 dBc/Hz
10 kHz Offset 25°C V 148 148 dBc/Hz
100 kHz Offset 25°C V 152 152 dBc/Hz
PIPELINE DELAYS
4 , 5 , 6
DDS Core (Phase Accumulator and
Phase-to-Amp Converter)
25°C IV 33 33 SYSCLK cycles
Frequency Accumulator 25°C IV 26 26 SYSCLK cycles
Inverse Sinc Filter 25°C IV 16 16 SYSCLK cycles
Digital Multiplier 25°C IV 9 9 SYSCLK cycles
DAC 25°C IV 1 1 SYSCLK cycles
I/O Update Clock (Internal Mode) 25°C IV 2 2 SYSCLK cycles
I/O Update Clock (External Mode) 25°C IV 3 3 SYSCLK cycles
MASTER RESET DURATION 25°C IV 10 10 SYSCLK cycles
COMPARATOR INPUT CHARACTERISTICS
Input Capacitance 25°C V 3 3 pF
Input Resistance 25°C IV 500 500 kΩ
Input Current 25°C I ±1 ±5 ±1 ±5 μA
Hysteresis 25°C IV 10 20 10 20 mV p-p
COMPARATOR OUTPUT CHARACTERISTICS
Logic 1 Voltage, High-Z Load Full VI 3.1 3.1 V
Logic 0 Voltage, High-Z Load Full VI 0.16 0.16 V
Output Power, 50 Ω Load, 120 MHz Toggle Rate 25°C I 9 11 9 11 dBm
Propagation Delay 25°C IV 3 3 ns
Output Duty Cycle Error
7
25°C I −10 ±1 +10 −10 ±1 +10 %
Rise/Fall Times, 5 pF Load 25°C V 2 2 ns
Toggle Rate, High-Z Load 25°C IV 300 350 300 350 MHz
Toggle Rate, 50 Ω Load 25°C IV 375 400 375 400 MHz
Output Cycle-to-Cycle Jitter
8
IV 4.0 4.0 ps rms
COMPARATOR NARROW-BAND SFDR
9
10 MHz (±1 MHz) 25°C V 84 84 dBc
10 MHz (±250 MHz) 25°C V 84 84 dBc
10 MHz (±50 MHz) 25°C V 92 92 dBc
41 MHz (±1 MHz) 25°C V 76 76 dBc
41 MHz (±250 MHz) 25°C V 82 82 dBc
41 MHz (±50 MHz) 25°C V 89 89 dBc
119 MHz (±1 MHz) 25°C V 73 dBc
119 MHz (±250 MHz) 25°C V 73 dBc
119 MHz (±50 MHz) 25°C V 83 dBc
CLOCK GENERATOR OUTPUT JITTER 9
5 MHz A
OUT
25°C V 23 23 ps rms
40 MHz A
OUT
25°C V 12 12 ps rms
100 MHz A
OUT
25°C V 7 7 ps rms