Power Driver Integrated Full Digital Audio Amplifier
NTP-8230
Name
EQ
Description
Graphic equalizer b’00
Value
Meaning
Bypass
Ref.
configuration
b„01
b„11
5-band graphic equalizer (GEQ) mode
(0x10~0x14 let GEQ choose preset BQ
coeffs)
Programmable Graphic Equalizer (PEQ)
5 biquad chain is programmed for application-
specific equalizer (refer to 0x7E register to
program)
Addr 0x10~0x14: GEQ Gain for Band 1 ~ 5
Bit
7
6
5
4
3
2
1
0
Name
X
X
X
BG
Name
BG
Description
Band Gain
Value
Meaning
See register value table.
Ref.
Name
BG
Address
0x10
0x11
0x12
0x13
Band Default
GEQ Default Frequency
Ref.
BQ1
BQ2
BQ3
BQ4
BQ5
b‟00000
b‟00000
b‟00000
b‟00000
b‟00000
100Hz
300Hz
1kHz
3kHz
10kHz
0x14
Addr 0x15: CH1&CH2 Prescaler Value Configuration
Bit
7
6
5
4
3
2
1
0
Name
PS
Name
PS
Description
Prescaler
Value
Meaning
Ref.
b‟0000000 208 (0xD0)default
~
b‟11111111
Addr 0x16: CH3 Prescaler Value Configuration
Bit
7
6
5
4
3
2
1
0
Name
PS
Name
PS
Description
Prescaler
Value
Meaning
Ref.
b‟0000000 208 (0xD0)default
~
b‟11111111
Addr 0x17~0x18: Post Biquad Filter (PBQ) Configuration0 for Ch 1 and Ch2, respectively
Bit
7
6
5
4
3
2
1
0
Name
X
X
X
BQ5
BQ4
BQ3
BQ2
BQ1
Name
BQ1
Description
On/off Bi-Quad 1
Value
b’0
Meaning
Bypass Bi-Quad 1 of channel n
Ref.
Copyright ⓒ NeoFidelity, Inc.
Page 29
Document Number: DS8230 draft ver. 0.1
2011-01-11
ETC [ ETC ]
