AD9520-4BCPZ Analog Devices Inc, AD9520-4BCPZ Datasheet - Page 62

• Manufacturer Part Number: AD9520-4BCPZ
• Description: Clock IC With 1.6GHz On-chip VCO
• Manufacturer: Analog Devices Inc
• Type: Clock Generator, Fanout Distributionr

Specifications of AD9520-4BCPZ

• Design Resources: Synchronizing Multiple AD9910 1 GSPS Direct Digital Synthesizers (CN0121) Phase Coherent FSK Modulator (CN0186)
• Pll: Yes
• Input: CMOS, LVDS, LVPECL
• Output: CMOS, LVPECL
• Number Of Circuits: 1
• Ratio - Input:output: 2:12, 2:24
• Differential - Input:output: Yes/Yes
• Frequency - Max: 1.8GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LFCSP
• Frequency-max: 1.8GHz
• Function: Clock Generator
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: LFCSP EP
• Pin Count: 64
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AD9520-4/PCBZ - BOARD EVAL FOR AD9520-4
• Lead Free Status / Rohs Status: Compliant

AD9520-4
REGISTER MAP
Register addresses that are not listed in Table 49 are not used, and writing to those registers has no effect. Writing to register addresses
marked unused also has no effect.
Table 49. Register Map Overview
Addr
(Hex)
Serial Port Configuration
000
001
002
003
004
EEPROM ID
005
006
007
to
00F
PLL
010
011
012
013
014
015
016
017
018
019
01A
01B
01C
01D
Parameter
Serial port config
(SPI mode)
Serial port config
(I²C mode)
Readback
control
EEPROM
customer
version ID
PFD charge
pump
R counter
A counter
B counter
PLL_CTRL_1
PLL_CTRL_2
PLL_CTRL_3
PLL_CTRL_4
PLL_CTRL_5
PLL_CTRL_6
PLL_CTRL_7
PLL_CTRL_8
Bit 7 (MSB)
SDO active
Set CP pin
to VCP/2
Enable CMOS
reference input
dc offset
Enable STATUS
pin divider
Enable VCO
frequency
monitor
Disable
switchover
deglitch
Enable
Status_EEPROM
at STATUS pin
PFD polarity
R, A, B counters
SYNC pin reset
Unused
Unused
Unused
Unused
Bit 6
LSB first/
addr incr
Reset
R counter
Lock detect counter
Ref freq
monitor
threshold
Enable
REF2
( REFIN )
frequency
monitor
Select
REF2
Enable
XTAL
OSC
Charge pump current
Bit 5
Soft reset
(self-
clearing)
Soft reset
(self-
clearing)
Reset
A and B
counters
Enable
REF1
(REFIN)
frequency
monitor
Use
REF_SEL
pin
Enable
clock
doubler
STATUS pin control
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EEPROM customer version ID (MSB)
EEPROM customer version ID (LSB)
Bit 4
Unused
Unused
Reset all
counters
Digital
lock
detect
window
Enable
automatic
reference
switchover
Disable
PLL status
register
14-bit R counter, Bits[7:0] (LSB)
13-bit B counter, Bits[7:0] (LSB)
R path delay
Unused
Reserved
Reserved
Unused
Unused
Bit 3
Unused
Unused
B counter
bypass
Disable
digital
lock detect
Stay on REF2
Enable LD
pin
comparator
14-bit R counter, Bits[13:8] (MSB)
Charge pump mode
13-bit B counter, Bits[12:8] (MSB)
6-bit A counter
LD pin control
REFMON pin control
Bit 2
Soft reset
(self-
clearing)
Soft reset
(self-
clearing)
Enable
REF2
Unused
VCO calibration divider
Bit 1
LSB first/
addr incr
Unused
Enable
REF1
Enable
external
holdover
N path delay
Antibacklash pulse width
Prescaler P
PLL power-down
Bit 0 (LSB)
SD0 active
Unused
Readback
active regs
VCO
calibration
now
Enable
differential
reference
Enable
holdover
7D
00
00
03
00
06
00
00
00
Default
Value
(Hex)
00
00
N/A
N/A
N/A
00
00
00
01
00
06
00
80
00