MB88155 Fujitsu Media Devices, MB88155 Datasheet - Page 21

• Manufacturer Part Number: MB88155
• Description: Spread Spectrum Clock Generator
• Manufacturer: Fujitsu Media Devices

SPECTRUM EXAMPLE CHARACTERISTICS
The condition of the examples of the characteristic is shown as follows : Input frequency = 16 MHz (Output
frequency = 64 MHz : Using MB88155-410 (Multiplied by 4) )
Power-supply voltage = 3.3 V, None load capacity. Modulation rate = ± 1.0% (center spread).
Spectrum analyzer HP4396B is connected with CKOUT. The result of the measurement with RBW = 1 kHz (
use for −6 dB
) .
Avg
4
RBW# 1 kH
CENTER 64 MH
CH B Spectrum
Z
VBW 1 kH
Z
No modulation
−5.64 dBm
Z
10 dB /REF 0 dBm
ATT 6 dB
±1.0% modulation
−26.93 dBm
SWP 8.005 s
SPAN 12.8 MH
Z
MB88155
ATT
21