AD9548/PCBZ Analog Devices Inc, AD9548/PCBZ Datasheet - Page 54

• Manufacturer Part Number: AD9548/PCBZ
• Description: Clock Generator Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of AD9548/PCBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Network Clock Generator/Synchronizer
• Kit Application Type: Clock & Timing
• Silicon Core Number: AD9548
• Kit Contents: Board
• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9548
• Primary Attributes: 62.5 ~ 450 MHz Output Frequency
• Secondary Attributes: SPI and I2C Compatible Control Port
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9548
SCLK
Table 32. Serial Control Port Timing
Parameter
t
t
t
t
t
t
t
t
SDIO
DS
DH
CLK
S
C
HI
LO
DV
CS
DON'T CARE
DON'T CARE
A0 A1 A2 A3
SCLK
SDIO
CS
Description
Setup time between data and the rising edge of SCLK
Hold time between data and the rising edge of SCLK
Period of the clock
Setup time between the CS falling edge and the SCLK rising edge (start of the communication cycle)
Setup time between the SCLK rising edge and CS rising edge (end of the communication cycle)
Minimum period that SCLK should be in a logic high state
Minimum period that SCLK should be in a logic low state
SCLK to valid SDIO and SDO (see Figure 56)
A4
16-BIT INSTRUCTION HEADER
A5 A6 A7 A8
t
Figure 57. Serial Control Port Write—LSB First, 16-Bit Instruction, Two Bytes of Data
t
DS
S
SCLK
SDIO
SDO
CS
BIT N
Figure 56. Timing Diagram for Serial Control Port Register Read
A9 A10 A11 A12
t
HI
t
DH
Figure 58. Serial Control Port Timing—Write
DATA BIT N
t
CLK
W0
t
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DV
t
LO
W1
R/W
BIT N + 1
D0
DATA BIT N – 1
D1
REGISTER (N) DATA
D2 D3 D4
D5 D6 D7
D0
D1 D2
REGISTER (N + 1) DATA
D3 D4 D5
t
C
D6
D7
DON'T CARE
DON'T CARE