AD9857AST Analog Devices Inc, AD9857AST Datasheet - Page 7
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AD9857AST
Manufacturer Part Number
AD9857AST
Description
IC QUADRATURE DGTL UPCONV 80LQFP
Manufacturer
Analog Devices Inc
Series
AD9857r
Datasheet
1.AD9857PCB.pdf
(40 pages)
Specifications of AD9857AST
Rohs Status
RoHS non-compliant
Function
Upconverter
Frequency
5MHz ~ 200MHz
Rf Type
HFC Cable Network
Package / Case
80-LQFP
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Parameter
POWER SUPPLY V
1
2
3
Wake-up time refers to recovery from full-sleep mode. The longest time required is for the reference clock multiplier PLL to lock up (if it is being used). The wake-up
time assumes that there is no capacitor on DAC_BP, and that the recommended PLL loop filter values are used. The state of the reference clock multiplier lock can be
determined by observing the signal on the PLL_LOCK pin.
SYSCLK refers to the actual clock frequency used on-chip by the AD9857. If the reference clock multiplier is used to multiply the external reference frequency, the
SYSCLK frequency is the external frequency multiplied by the reference clock multiplier multiplication factor. If the reference clock multiplier is not used, the SYSCLK
frequency is the same as the external REFCLK frequency.
CIC = 2, INV SINC ON, FTW = 40%, PLL OFF, auto power-down between burst On, TxENABLE duty cycle = 25%.
V
Full Operating Conditions
160 MHz Clock (×16)
120 MHz Clock (×12)
Burst Operation (25%)
Single-Tone Mode
Power-Down Mode
Full-Sleep Mode
DD
= 3.3 V, 25°C, REFCLK = 200 MHz)
S
CURRENT
3
(all power specifications at
Rev. C| Page 7 of 40
Temp
25°C
25°C
25°C
25°C
25°C
25°C
25°C
Test Level
I
I
I
I
I
I
I
Min
Typ
540
445
345
395
265
71
8
Max
615
515
400
450
310
80
13.5
Unit
mA
mA
mA
mA
mA
mA
mA
AD9857