AD9520-3BCPZ Analog Devices Inc, AD9520-3BCPZ Datasheet - Page 72

• Manufacturer Part Number: AD9520-3BCPZ
• Description: 12/24 Channel Clock Gen 2,0GH
• Manufacturer: Analog Devices Inc
• Type: Clock Generator, Fanout Distributionr

Specifications of AD9520-3BCPZ

• 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: 2.25GHz
• 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: 2.25GHz
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Reg.
Addr
(Hex) Bit(s) Name
01B
01B
01B
01B
AD9520-3
[7]
[6]
[5]
[4:0] REFMON pin
Enable VCO
frequency
monitor
Enable REF2
(REFIN)
frequency
monitor
Enable REF1
(REFIN)
frequency
monitor
control
Description
[5] [4] [3]
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Enables or disables VCO frequency monitor.
[7] = 0; disable VCO frequency monitor (default).
[7] = 1; enable VCO frequency monitor.
Enables or disables REF2 frequency monitor.
[6] = 0; disable REF2 frequency monitor (default).
[6] = 1; enable REF2 frequency monitor.
REF1 (REFIN) frequency monitor enabled; this is for both REF1 (single-ended) and REFIN (differential) inputs
(as selected by differential reference mode).
[5] = 0; disable REF1 (REFIN) frequency monitor (default).
[5] = 1; enable REF1 (REFIN) frequency monitor.
Selects the signal that is connected to the REFMON pin.
[4]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
[3]
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
[2]
0
0
0
0
1
1
1
1
0
0
0
0
1
1
[2]
0
0
1
1
1
1
0
0
0
0
1
1
1
1
[1]
0
0
1
1
0
0
1
1
0
0
1
1
0
0
[0]
0
1
0
1
0
1
0
1
0
1
0
1
0
1
[1]
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DYN
DYN
DYN
DYN
LVL
LVL
Level or
Dynamic
Signal
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
Rev. 0 | Page 72 of 84
[0]
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Level or
Dynamic
Signal
DYN
DYN
DYN
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
LVL
Signal at REFMON Pin
Ground, dc (default).
REF1 clock (differential reference when in differential mode).
REF2 clock (N/A in differential mode).
Selected reference to PLL (differential reference when in differential
mode).
Unselected reference to PLL (not available in differential mode).
Status of selected reference (status of differential reference);
active high.
Status of unselected reference (not available in differential mode);
active high.
Status REF1 frequency (active high).
Status REF2 frequency (active high).
(Status REF1 frequency) AND (status REF2 frequency).
(DLD) AND (status of selected reference) AND (status of VCO).
Status of VCO frequency (active high).
Selected reference (low = REF1, high = REF2).
DLD; active low.
Signal at LD Pin
REF2 clock (not available in differential mode).
Selected reference to PLL (differential reference when in
differential mode).
Unselected reference to PLL (not available when in differential
mode).
Status of selected reference (status of differential reference);
active low.
Status of unselected reference (not available in differential
mode); active low.
Status of REF1 frequency (active low).
Status of REF2 frequency (active low).
(Status of REF1 frequency) AND (status of REF2 frequency) .
(DLD) AND (Status of selected reference) AND (status of VCO) .
Status of VCO frequency (active low).
Selected reference (low = REF2, high = REF1).
DLD; active low.
Holdover active (active low).
N/A, do not use.