AD9857AST Analog Devices Inc, AD9857AST Datasheet - Page 31

• Manufacturer Part Number: AD9857AST
• Description: IC QUADRATURE DGTL UPCONV 80LQFP
• Manufacturer: Analog Devices Inc
• Series: AD9857r

Specifications of AD9857AST

• Rohs Status: RoHS non-compliant
• Function: Upconverter
• Frequency: 5MHz ~ 200MHz
• Rf Type: HFC Cable Network
• Package / Case: 80-LQFP

SIGNAL PATH Q
INVCIC CLOCK
SIGNAL PATH I
SIGNAL PATH Q
INVCIC CLOCK
SIGNAL PATH I
SYSCLK/2N
SYSCLK/4N
TxENABLE
SYSCLK/N
SYSCLK/2N
SYSCLK/4N
TxENABLE
D<13:0>
SYSCLK/N
PDCLK
D<13:0>
PDCLK
DON'T CARE
DON'T CARE
Figure 33. Latency from D<13:0> to Signal Processing Chain, Four PDCLK Cycles
Figure 34. Latency from D<13:0> to Signal Processing Chain, Five PDCLK Cycles
LATENCY THROUGH DATA ASSEMBLER LOGIC
I
0
IS 3 PDCLK CYCLES
I
0
Q
LATENCY THROUGH DATA ASSEMBLER LOGIC IS
0
Rev. C| Page 31 of 40
Q
3 PDCLK CYCLES
0
I
1
I
INVERSE CIC FILTER SETUP TIME
1
Q
1
Q
I
0
Q
I
0
2
FILTER SETUP
1
INVERSE CIC
TIME
Q
I
0
0
Q
2
I
2
I
Q
1
1
I
3
Q
2
Q
I
1
1
Q
AD9857
3