DDone-10 DIGITAL
Digital FM stereo broadcast exciter
Based on DSP and DDS technology
Digital Signal Processing technology
Advanced Direct Digital Synthesizer (1 GSPS, 14-bit DAC)
24-bit A/D, 114 dB Dynamic Range
,
Sampling Rates up to 192 kHz
Complete digital solution in a compact 1U/19 Inch housing
AUDIO SECTION
Audio connector
RF SECTION
GENERAL SECTION
BLOCK DIAGRAM
E-Mail: [email protected]
XLR Female
L/R input level
±1.2Vp-p for 75 KHz deviation (1KHz)
Pre-emphasis
Flat / 25 / 50 / 75µsec.
Channel separation
60 dB min., ( 65 dB typ. ), 20Hz to 15kHz,
S/N Ratio
80dB with CCIR unweighted
Frequency response
±0.5dB @ 30Hz - 15kHz
Output power
< 10W, adjustable
Output impedance
Output connector
Frequency range
Frequency step
RF Spurious
RF Harmonics
Modulation capability
Frequency deviation
± 75 KHz
WFM (F3)
> -80 dBc @ ± 1MHz min.
> -45 dBc
10KHz
87.5 to 108MHz
N,Female
50
Ω
Remote Control
AC power
Power consumption (typical)
Ambient temperature
External dimensions ( W x D x H )
Weight
110V or 240V selectable,50/60Hz
RS232, Connector DB9 female
25 W
-5° to +40°C
483mm(19") x 200mm x 44mm(1U)
2.5kg
L+R
L-R
DSP Baseband Processor
ΣΔ
ADC
24-bit
f
s
=192kHz
-1-
REV .1
For Production or FM-Airchain Use
OPERATING MANUAL
MAIN FEATURES
Spurious and harmonic suppressione
Encode mode
MONO-L, MONO-R, LR-MIX, STEREO
< 75dBc (Typical 80 dBc)
