AD9547/PCBZ Analog Devices Inc, AD9547/PCBZ Datasheet - Page 94

• Manufacturer Part Number: AD9547/PCBZ
• Description: Clock Generator/Synchronizer Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of AD9547/PCBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Network Clock Generator/Synchronizer
• Kit Application Type: Clock & Timing
• Silicon Core Number: AD9547
• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9547
• Primary Attributes: 2 Differential or 4 Single Ended Inputs
• Secondary Attributes: CMOS, LVPECL & LVDS Compatible
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9547
Table 140. Input Reference Status
Address
0x0D0C
0x0D0D
0x0D0E
0x0D0F
0x0D10
0x0D11
0x0D12
0x0D13
Table 141. Holdover History
Address
0x0D14
0x0D15
0x0D16
0x0D17
0x0D18
0x0D19
1
NONVOLATILE MEMORY (EEPROM) CONTROL (REGISTER 0x0E00 TO REGISTER 0x0E03)
Table 142. Write Protect
Address
0x0E00
Table 143. Condition
Address
0x0E01
Table 144. Save
Address
0x0E02
These registers contain the current 48-bit DDS frequency tuning word generated by the tuning word history logic.
Bit
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
Bit
[7:2]
1
0
Bit
[7:5]
[4:0]
Bit
[7:1]
0
7
[6:4]
3
2
1
0
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
Bit
Bit Name
Tuning word
history
Bit Name
Unused
Half rate mode
Write enable
Bit Name
Unused
Condition value
Bit Name
Unused
Save to EEPROM
Bit Name
Profile selected
Selected profile
Valid
Fault
Fast
Slow
Unused
1
Description
The control logic sets this bit when it assigns Ref A to one of the eight profiles.
The index (0 to 7) of the profile assigned to Ref A.
Note that these bits are meaningless unless Bit 7 = 1.
Ref A is valid for use (that is, it is unfaulted, and its validation timer has expired).
Ref A is not valid for use.
If Bit 7 = 1, this bit indicates that the frequency of Ref A is higher than allowed by its profile settings.
If Bit 7 = 0, this bit indicates that the frequency of Ref A is above the maximum input reference
frequency supported by the device.
If Bit 7 = 1, this bit indicates that the frequency of Ref A is lower than allowed by its profile settings.
If Bit 7 = 0, this bit indicates that the frequency of Ref A is below the minimum input reference
frequency supported by the device.
Same as 0x0D0C but for REF AA instead of REF A.
Same as 0x0D0C but for REF B instead of REF A.
Same as 0x0D0C but for REF BB instead of REF A.
Unused.
Description
Tuning word readback, Bits[7:0].
Tuning word readback, Bits[15:8].
Tuning word readack, Bits[23:16].
Tuning word readback, Bits[31:24].
Tuning word readback, Bits[39:32].
Tuning word readback, Bits[47:40].
Unused.
Unused.
Description
Unused.
Upload data to the EEPROM based on in the EEPROM storage sequence. This is an autoclearing bit.
Description
EEPROM serial communication rate.
EEPROM write enable/protect.
0 (default) = EEPROM is write protected.
1 = EEPROM is write enabled.
Description
When set to a nonzero value (default = 0), these bits establish the condition for EEPROM downloads.
0 (default) = 400 kHz (normal).
1 = 200 kHz.
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