Datasheet
AD9522-1
Rev. 0 | Page 3 of 84
Reset Modes ................................................................................. 48
Power-On Reset ....................................................................... 48
Hardware Reset via the
RESET
Pin ...................................... 48
Soft Reset via the Serial Port.................................................. 48
Soft Reset to Settings in EEPROM when EEPROM Pin = 0 via
the Serial Port .......................................................................... 48
Power-Down Modes ................................................................... 48
Chip Power-Down via
PD
..................................................... 48
PLL Power-Down .................................................................... 49
Distribution Power-Down ..................................................... 49
Individual Clock Output Power-Down ................................ 49
Individual Clock Channel Power-Down ............................. 49
Serial Control Port .......................................................................... 50
SPI/IC Port Selection ................................................................ 50
IC Serial Port Operation ........................................................... 50
I
2
C Bus Characteristics ........................................................... 50
Data Transfer Process ............................................................. 51
Data Transfer Format ............................................................. 52
IC Serial Port Timing ............................................................ 52
SPI Serial Port Operation ........................................................... 53
Pin Descriptions ...................................................................... 53
SPI Mode Operation ............................................................... 53
Communication Cycle—Instruction Plus Data .................. 53
Write ......................................................................................... 53
Read .......................................................................................... 53
SPI Instruction Word (16 Bits) .................................................. 54
SPI MSB/LSB First Transfers ..................................................... 54
EEPROM Operations ..................................................................... 57
Writing to the EEPROM ............................................................ 57
Reading from the EEPROM ...................................................... 57
Programming the EEPROM Buffer Segment.......................... 58
Register Section Definition Group ....................................... 58
IO_UPDATE (Operational Code 0x80) .............................. 58
End-of-Data (Operational Code 0xFF) ............................... 58
Pseudo-End-of-Data (Operational Code 0xFE) ................. 58
Thermal Performance ..................................................................... 60
Register Map .................................................................................... 61
Register Map Descriptions ............................................................. 66
Applications Information ............................................................... 80
Frequency Planning Using the AD9522 .................................. 80
Using the AD9522 Outputs for ADC Clock Applications .... 80
LVDS Clock Distribution ........................................................... 80
CMOS Clock Distribution ......................................................... 81
Outline Dimensions ........................................................................ 82
Ordering Guide ........................................................................... 82
REVISION HISTORY
11/08—Revision 0: Initial Version