m61528fp Renesas Electronics Corporation., m61528fp Datasheet - Page 13

• Manufacturer Part Number: m61528fp
• Description: Scf Type Fixed Equalizer For Car Audio
• Manufacturer: Renesas Electronics Corporation.

M61528FP
Data Transmission of Fixed Equalizer Setting
• Faulty operation in the communication error occurrence.
Rev.1.1, Dec.17.2003, page 13 of 30
Fixed equalizer setting premise no-change setting after setting is done once.
By this premise, A noise countermeasure circuit of the setting change isn’t built in.
Therefore, It has the possibility that noise is made by communication error.
These countermeasures are taken by this IC as it is shown in next page.
 Fixed equalizer setting change in the communication error occurrence.(example)
[ Transmitting data of normal.]
[ Transmitting da ta of communica tion e rror. ]
* In the case of the upper figure, Fixed equalizer gain setting of FRONT Lch low range
SLOT 1, f0 setting: 300Hz , Q setting:3.0, Gv setting: -8.0dB
SLOT 1, f0 setting: 300Hz , Q setting: 3.0, Gv setting:0dB
occur faulty operation, and it has the possibility that noise is made.
CLOCK
CLOCK
DATA
DATA
D0
D0
D1
D1
Gv= -8.0dB
D2
D2
D4 is lack.
D3
D3
D4
D4
D5
D5
Gv= 0dB
D6
D6
D7
D7
Communication error occurrence.
D8
D8
D9 D10 D11 D12 D13 D14 D15
D9 D10 D11 D12 D13 D14 D15
LATCH condition
LATCH condition