AD1986BSTZ-REEL 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
일치하는 목록
AD1986BSTZ-REEL Datasheet PDF : 52 Pages
| |||
Preliminary Technical Data
AD1986
REGISTER DETAILS
RESET (REGISTER 0x00)
Writing any value to this register performs a register reset, which causes all registers to revert to their default values. The serial
configuration (0x74) register will not reset the SLOT16, REGM [2:0], SPOVR, SPAL, SPDZ, and SPLNK. These bits are reset on a hard,
hardware, or power-on reset. The REGM and serial configuration bits are only reset only by an external hardware reset.
The AC ’97, Revision 2.3, Page 1 registers CODEC class/rev (0x601), PCI SVID (0x621), PCI SID (0x641), function information (0x681—
per supported function), and sense register ST [3:0] bits (0x6A1 D [15:13]—per supported function) are only reset on a power-on reset.
To satisfy the AC ’97, Revision 2.3 requirements, these registers/bits are sticky across all software and hardware resets.
Reading this register returns the ID code of the part and a code for the type of 3D stereo enhancement.
Reg Name D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default
0x00 Reset x SE4 SE3 SE2 SE1 SE0 ID9 ID8 ID7 ID6 ID5 ID4 ID3 ID2 ID1 ID0 0x0290
Table 30.
Register
ID [9:0] (RO)
(Identify
Capability)
SE [4:0] (RO)
(Stereo
Enhancement)
x
Function
The ID decodes the capabilities of the AD1986 based on the functions.
Bit
Function
ID0
Dedicated MIC PCM In channel
ID1
Reserved (per AC ’97, Revision 2.3)
ID2
Bass and treble control
ID3
Simulated stereo (mono to stereo)
ID4
Headphone out support
ID5
Loudness (bass boost) support
ID6
18-bit DAC resolution
ID7
20-bit DAC resolution
ID8
18-bit ADC resolution
ID9
20-bit ADC resolution
The AD1986 does not provide hardware 3D stereo enhancement
(all bits are zero).
Reserved.
AD1986 ID [9:0]
0
0
0
0
1
0x290
0
0
1
0
1
Default: 0x00
Default: 0
MASTER VOLUME (REGISTER 0x02)
This register controls the LINE_OUT, SURROUND, and CENTER/LFE outputs’ mute and volume controls in unison. Each volume sub-
register contains five bits, generating 32 volume steps of −1.5 dB each for a range of 0 dB to −46.5dB.
The headphone output (HP_OUT) mute and volume are controlled separately by the headphones volume register (0x04).The monaural
output (MONO_OUT) mute and volume is controlled separately by the mono volume register (0x06). To control the LINE_OUT,
SURROUND, and CENTER/LFE volumes separately use the front DAC volume register (0x18) for LINE_OUT; the surround DAC
Volume register (0x38) for SURROUND; and the C/LFE DAC volume register (0x36) for CENTER/LFE.
Reg Name
0x02 Master
Volume
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default
LM x x LV4 LV3 LV2 LV1 LV0 RM x x RV4 RV3 RV2 RV1 RV0 0x8080
Rev. 0 | Page 17 of 52
Share Link: 