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CXD2598Q
D15
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1
1
0
0
THBON FHBON TLB1ON FLB1ON TLB2ON
0
HBST1 HBST0
LB1S1 LB1S0 LB2S1 LB2S0
$34C (preset: $34C 000)
These commands turn on the boost function. (See §5-20. Filter Composition.)
There are five boosters (three for the TRK filter and two for the FCS filter) which can be turned on and off
independently.
THBON: When set to 1, the high frequency is boosted for the TRK filter. The preset is 0.
FHBON: When set to 1, the high frequency is boosted for the FCS filter. The preset is 0.
TLB1ON: When set to 1, the low frequency is boosted for the TRK filter. The preset is 0.
FLB1ON: When set to 1, the low frequency is boosted for the FCS filter. The preset is 0.
TLB2ON: When set to 1, the low frequency is boosted for the TRK filter. The preset is 0.
The difference between TLB1ON and TLB2ON is the LowBoost position.
TLB1ON performs LowBoost before the TRK jump, and TLB2ON performs LowBoost after the TRK jump.
The following commands set the boosters. (See §5-20. Filter Composition.)
HBST1, HBST0: TRK and FCS HighBooster setting.
HighBooster has the configuration shown in Fig. 5-24a, and can select three different
combinations of coefficients BK1, BK2 and BK3. (See Table 5-25a.)
An example of characteristics is shown in Fig. 5-26a.
These characteristics are the same for both the TRK and FCS filters.
The sampling frequency is 88.2kHz (when MCK = 128Fs).
LB1S1, LB1S0:
TRK and FCS LowBooster-1 setting.
LowBooster-1 has the configuration shown in Fig. 5-24b, and can select three different
combinations of coefficients BK4, BK5 and BK6. (See Table 5-25b.)
An example of characteristics is shown in Fig. 5-26b.
These characteristics are the same for both the TRK and FCS filters.
The sampling frequency is 88.2kHz (when MCK = 128Fs).
LB2S1, LB2S0:
TRK LowBooster-2 setting.
LowBooster-2 has the configuration shown in Fig. 5-24c, and can select three different
combinations of coefficients BK7, BK8 and BK9. (See Table 5-25c.)
An example of characteristics is shown in Fig. 5-26c.
This booster is used exclusively with the TRK filter.
The sampling frequency is 88.2kHz (when MCK = 128Fs).
Note)
Fs = 44.1kHz
D15
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SFBK1 SFBK2
0
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0
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0
0
0
0
$34B (preset: $34B 000)
The low frequency can be boosted for the brake operation.
See §5-12 for brake operation.
SFBK1:
When set to 1, brake operation is performed by setting the LowBooster-1 input to 0.
However, this is valid only when TLB1ON = 1. The preset is 0.
When set to 1, brake operation is performed by setting the LowBooster-2 input to 0.
However, this is valid only when TLB2ON = 1. The preset is 0.
SFBK2: