Novatech 409B Instruction Manual page 7

LOGIC
V
OWER
POWER
FILTERS &
REGULATOR
S232
µC
"Que" command output (all values are hexadecimal) values:
05F5E100 0000 03ff 0000 00000000 00000000 000301
05F5E100 1000 03ff 0000 00000000 00000000 000301
05F5E100 0000 03ff 0000 00000000 00000000 000301
05F5E100 1000 03ff 0000 00000000 00000000 000301
80 BC0000 0000 6102 21
Description:
Line 1: "05F5E100", frequency in 0.1Hz steps per LSB; "0000", phase setting; "03ff", amplitude setting
(default is scaling off, so output is full-scale); "0000", linear ramp rate; "00000000", rising delta frequency;
"00000000", falling delta frequency, "000301", channel function register.
The last line gives the status of AD9959 registers and internal software registers: "80", channel select register
(CSR); "BC0000", function register 1 (FR1); "0000", function register 2 (FR2); "6102", internal µC control
registers; "21", software revision as x.y, Rev 2.1 in this example. Consult the Analog Devices AD9959 data
sheet for meaning of registers. Each line is terminated by a carriage return/line feed (CRLF) pair.
NOVATECH INSTRUMENTS
32-Bit
DDS,
AD9959,
4 channels
+5V
-5V
+1.8V
+3.3V
System Control
409B
Figure 3.
Simplified System Block Diagram
7
LP Filter,x4 AMP,x4
Buffer,x4
Master
Clock
CLK SEL
409B Manual, 17-Apr-2015
Sine
OUT
LVCMO
OUT
EXT
CLK
IN
Voltag
Contro