Rev 1.1 | SC5520A & SC5521A
Hardware Manual
SignalCore, Inc.
24
Register 0x14 AUTO_LEVEL_DISABLE (1 Byte)
This register enables and disables the RF amplifier.
Bit Type Name
Width Description
[0]
WO
RF1 Auto leveling
1
0 = power is leveled on frequency change
1 = Power is not leveled on frequency change
with explicitly calling register 0x11 (RF_LEVEL)
[7:1]
W
Unused
7
Set all bits to zero.
Register 0x15 Reserved (1 Byte)
This register corrects the amplitude using closed or opened loops.
Bit Type Name
Width Description
[7:0]
WO
Unused
7
Set all bits to zero.
Register 0x16 RF_STANDBY (1 Byte)
This register puts the RF1 channel into standby, reducing power consumption.
Bit Type Name
Width Description
[0]
WO
RF1 Standby
1
1 = Puts the RF1 channel into standby. Standby
powers down all circuitry associated with ch1,
thus reducing power consumption.
[7:1]
WO
Unused
7
Set all bits to zero.
Register 0x17 REFERENCE_MODE (1 Byte)
This register tells the device to lock to an external reference source.
Bit Type Name
Width Description
[0]
WO
Lock to external
reference source
1
1 = instructs the device to lock to external
source. No attempt will be made unless a
reference source is detected.
[1]
WO
Reference out
select
1
0 = Outputs a 10 MHz signal
1 = Outputs a 100 MHz signal
[7:2]
WO
Unused
6
Set all bits to zero.
