MN662785TBUC Datasheet, PDF (77/89 Pages) Panasonic Semiconductor – LSI FOR COMPACT DISC/CD ROM PLAYER

MN662785TBUC
(2) AC characteristics
Parameter
Symbol
Conditions
Reset Timing (Note 13)
C44 NRST pulse width ^t_NRSTL
Power Supply Ripple Noise (Note 14)
C45 Ripple amplitude
V_RIP
C46
Ripple noise
amplitude
V_NZ
DV_DD1,2ʹ3.3 V, DV_SS1,2ʹ0 V
AV_DD1,2ʹ3.3 V, AV_SS1,2ʹ0 V
Taʹʵ40°C to ʴ85°C
f_X1ʹ33.8688 MHz
Limits
Unit
Min Typ Max
200
ms
15 ^mV[p-p]
50 ^mV[p-p]
Note 13)
When the power is turned on, reset with the NRST pulse which is equal to or
exceeds the above pulse width only after the clock oscillation is stabilized within
ʶ10% of error of the specified oscillator frequency.
When designing, be careful to eliminate noise from the reset line as much as
possible.
t_NRSTL
NRST
0.2V_DD
0.2V_DD
Note 14)
The permissible ripple and noise of power supply to this IC are guaranteed on
condition that the ripple frequency range is between 50 Hz and 100 Hz, the noise
frequency is at 500 kHz, and that both ripple and noise are sine wave signals as
shown below.
Pay utmost attention to these ripple signal and noise signal because they may exceed
the permissible values under the influence of the location of peripheral parts.
Noise frequency: 500 kHz
V_RIP
V_NZ
Ripple frequency: 50 Hz to 100 Hz
SDD00026AEM
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