ADAV4601 System Design Document
Confidential Information
Rev.1 August 2009
Analog Devices
Page 81
Bit No.
Bit
Name
Description
Default
0x1C = 290 dB/s (~29 ms)
0x1D = 300 dB/s (~28 ms)
0x1E = 310 dB/s (~28 ms)
0x1F = 320 dB/s (~27 ms)
Address 0x0118 Headphone 1/AUXOUT4 Seven Band EQ Control Register (Default: 0x0018)
Table 28.
Bit No.
Bit Name
Description
Default
Bits[15:11]
Reserved
Always write as 0 if writing to this register.
00000
Bits[10:8]
Headphone 1/
AUXOUT4 EQ
band
These register bits control the frequency band of the equalizer.
000
0x0 = 120 Hz
0x1 = 200 Hz
0x2 = 500 Hz
0x3 = 1200 Hz
0x4 = 3000 Hz
0x5 = 7500 Hz
0x6 = 12000 Hz
Bits[7:6]
Reserved
Always write as 0 if writing to this register.
00
Bits[5:0]
Headphone 1/
AUXOUT4 EQ
gain
These register bits are used to control the required gain of the equalizer.
The gain of the
equalizer is changed in 0.5 dB steps.
001110
0x00 = +12 dB
0x01 = +11.5 dB
…
0x0A = +7 dB
…
0x18 = 0 dB
…
0x26 = −7 dB
…
0x2F = −11.5 dB
0x30 = −12 dB
Address 0x011A and Address 0x011B Headphone 1/AUXOUT4 Left Balance Control
Registers (Default: 0x0080, 0x0000)
These two registers control the balance for the Left Headphone 1 and AUXOUT 4 output.
The balance control words are 28-bit words in twos complement and a 5.23 format. This means there are five bits to
the left of the decimal point of which the most significant bit is the sign bit.
Table 29.
Bit No.
Bit Name
Description
Default
Bits[15:12]
Reserved
Always write as 0 if writing to this register.
0000
Bits[11:0]
Woofer left
balance
control
register[27:0]
0x011A Bits[11:0] = Headphone 1/AUXOUT 4 left balance
control register[27:16]
000010000000
Содержание ADAV4601
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