AD1986AJSTZ Analog Devices Inc, AD1986AJSTZ Datasheet - Page 49

• Manufacturer Part Number: AD1986AJSTZ
• Description: IC CODEC HD AUDIO AC'97 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97, HDr

Specifications of AD1986AJSTZ

• Data Interface: Serial
• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 91
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FUNCTION SELECT REGISTER (REGISTER 0x66, PAGE 01)
This register is used to select which function (analog I/O pins), information and I/O (0x6801), and sense (0x6A01) registers apply to it.
The AD1986A associates FC = 0x0 with surround functions and FC = 0x01 with front functions. These are changed in the AD1986A to
align with the device pinout and to separate LINE_OUT functions.
Reg
0x661
Table 113.
Register
T/R
(FIP or Ring
Selection Bit)
FC [3:0]
Function Code
Bits
x
Name
Function
Select
Function
This bit sets which jack conductor the sense value is measured from. Software will program the corresponding rng/tp
selector bit together with the I/O number in bits FC [3:0]. Once software programs the value and properly reads it back to
confirm selection and implementation, it will access the rest of the bits fields in the descriptor. Mono inputs and outputs
should report the relevant function and sense information when T/R is set to 0 (tip). The FIP bit should report 0 (Page
0x01, Register 0x68, Bit 0 reports no function information present) when T/R is set to a 1 on a mono input or output.
T/R
0
1
These bits specify the type of audio function described by this page. These bits are read/write and represent current
AC ’97 Revision 2.2 defined I/O capabilities. Software will program the corresponding I/O number in this field together
with the tip/ring selector bit T/R. Once software programs the value and properly reads it back to confirm selection and
implementation, it will access the rest of the bits fields in the descriptor.
FC [3:0]
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
0x9
0xA
0xB
0xC
0xD–0xF
Reserved.
D15
x
D14
x
Function
Tip (left channel)
Ring (right channel)
Function
DAC 1 (master out). maps to front DACs (L/R)
DAC 2 (AUX out). maps to surround DACs (L/R)
DAC 3 (C/LFE). maps to C/LFE DACs
S/P-DIF out
Phone in
MIC_1 (Mic select = 0)
MIC_2 (Mic select = 1)
Line in
CD in
Video in
Aux in
Mono out
Headphone ut
Reserved
D13
x
D12
x
D11
x
Rev. 0 | Page 49 of 56
D10
x
D9
x
D8
x
D7
x
D6
x
D5
x
D4
FC3
D3
FC2
Default
Default
Default
Not supported on the
AD1986A
Default: 0
D2
FC1
D1
FC0
D0
T/R
AD1986A
Default
0x0000