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KW250S
CD, DAC & TUNER SPECIFICATIONS
Issue 3: 12th July 2006
CD:
Disc mechanism Philips
Total correlated jitter < 135 pS
DAC:
DAC circuits 24 bit Delta-Sigma (Bit stream) dual differential 8x over sampling
Up sampling 192 kHz
Total correlated jitter < 135 pS
Linearity < 0.1dB down to -96dB
Output digital 0dB level 2.15VRMS at 1 kHz nominal
Analogue output impedance 47 Ohms
Frequency response 10Hz to 20 kHz -0.2dB max
Channel separation > 105dB 20Hz to 20 kHz
Signal / noise ratio > 113dB “A” weighted
Total harmonic distortion < 0.003% 10Hz to 20 kHz
TUNER:
DAB Specifications
Supported DAB modes: I, II, III, and IV VHF 174 240 MHz RF frequency range
L-Band (standard and Canada) 1452 1492 MHz
VHF sensitivity -96 -97 dBm (Measured to EN50248)
L-Band sensitivity -95 -96.5 dBm (Measured to EN50248)
L-band after error correction -15 dBm Maximum Input Signal for Pseudo channel BER with real value 0.02
Band III after error correction 0 dBm
Adjacent Channel Selectivity 32 33 dBm (Measured to EN50248)
Far-off selectivity 48 dBm (Measured to EN5024845)
Acquisition sensitivity 101 dBm
Input Impedance 50 F type connector (to VHF/L-Band diplexer)
FM Specifications
RF Frequency Range 87.5-108 MHz
RF Sensitivity
(S+N)/N=26dB, 90MHz@22.5KHz 5 µV Dev. F.mod=1 KHz
RF Limiting Sensitivity 0.5 µV
(S+N)/N Ultimate s/n ratio 63 dB (90MHz@200mV/22.5KHz Dev. Fmod=1 KHz)
THD 0.5% (90MHz@200mV/75KHz Dev. Fmod=1 KHz)
Stereo Channel Separation 30 dB
RDS data CENELEC EN50067 compliant
WHIP AERIAL:
Operating Frequency FM Band 88-108MHz
Band III 174-240MHz
L-Band 1452-1492MHz
Gain FM & Band III 2dBi
L-Band 5dBi
Impedance 75
S.W.R. <2.0:1 at res. freq.
Polarization Vertical
Connector F-type
Operating temperature -20 to +65°C
Storage temperature -30 to +75°C
Length Sleeve 36mm
Retracted 153±10mm
Extended 646±10mm
Mechanical Fixing 180° swivel joint on plug with locking nut
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