MB88151A Datasheet, PDF (19/22 Pages) Fujitsu Component Limited. – Spread Spectrum Clock Generator

MB88151A
■ SPECTRUM EXAMPLE CHARACTERISTICS
The condition of the examples of the characteristic is shown as follows : Input frequency = 20 MHz (Output
frequency = 20 MHz : Using MB88151A-100 (Multiply-by-1)), Power - supply voltage = 3.3 V, None load capacity,
Modulation rate = ± 1.5% (center spread).
Spectrum analyzer HP4396B is connected with CKOUT. The result of the measurement with RBW = 1 kHz
(ATT use for − 6dB).
CH B Spectrum
Avg
4
10 dB /REF 0 dBm
No modulation
−6.54 dBm
±1.5% modulation
−24.45 dBm
RBW# 1 kHZ VBW 1 kHZ
CENTER 20 MHZ
ATT 6 dB
SWP 2.505 s
SPAN 4 MHZ
19