MN662785TBUC Datasheet, PDF (34/89 Pages) Panasonic Semiconductor – LSI FOR COMPACT DISC/CD ROM PLAYER

MN662785TBUC


(E)-5ɹSetting of soft VDETɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ
(Setting of vibration detection bandpass filter constant)
Table 7-1-4 (13)
Data
(D7 to D0)
Address
(HEX)
Command (HEX)
(A7 to A0) ^{(B7 to B0)}
7C
F2
Ì­ Ì­ Ì­ Ì­ D3 D2 D1 D0
D7 D6 D5 D4 Ì­ Ì­ Ì­ Ì­
Function


Setting of HPF constant A
ɹSETV1ʤD3 to D0ʥɹ(0 to 7)
ɹɹɹɹɹɹɹɹɹ
ɹ
Vibration detection level exponent part n setting
ɹSETV1ʤD7 to D4ʥɹ(0 to 7)
ɹɹɹɹɹɹɹɹɹ
Setting
at reset
3
1
7D
Ì­ Ì­ Ì­ Ì­ D3 D2 D1 D0
Setting of LPF 2nd stage constant C
ɹSETV2ʤD3 to D0ʥɹ(0 to 7)
5
ɹɹɹɹɹɹɹɹɹ
D7 D6 D5 D4 Ì­ Ì­ Ì­ Ì­
Setting of LPF 1st stage constant B
ɹSETV2ʤD7 to D4ʥɹ(0 to 7)
5
ɹɹɹɹɹɹɹɹɹ
ˎ See next page for the setting of vibration detection level.
TRE
Ê·1 / 2
Ê´Ê´
Ê´
Ê´
Ê´
ʵʴ
Ê´
Ê´
ʵ
̯^-1
̯^-1
̯^-1
̯^-1
Detection
level
1-2^A / 256 1-2^̗ / 256 1-2^̘ / 256
HPF
LPF 1st stage LPF 2nd stage
ˎ Sampling frequency for filter arithmetic operation: 11.02 kHz
Vibration detection
signal (VDET)
SDD00026AEM
34