AD1986JSTZ-REEL Analog Devices Inc, AD1986JSTZ-REEL Datasheet - Page 46

• Manufacturer Part Number: AD1986JSTZ-REEL
• Description: IC CODEC HD AUDIO AC'97 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97, HDr

Specifications of AD1986JSTZ-REEL

• 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

AD1986
SENSE REGISTER (REGISTER 0x6A, PAGE 01)
This address represents multiple registers (one for each supported function code (FC [3:0] bits (
only reset by power-on. They are used by the BIOS to store configuration information (per AC ’97 Revision 2.3 specifications) and must
not be reset by soft, hard or hardware resets. The remaining bits are the result of the last sense operation performed by the impedance
sensing circuitry.
Reg
0x6A1
Table 72.
Register
SR [5:0] (RO)
(Sense Result
Bits, RO)
OR [1:0] (RO)
(Order Bits)
S [4:0] (RO)
S [4:0] (RO)
Name
Sense
Register
Function
These bits are used to report a vendor specific fingerprint or value. (resistance, impedance, reactance,
etc. Used with the OR bits which are the multiplying factor.
These bits indicate the order the sense result bits SR [5:0] are using. For example, if measuring resistance SR = 1/OR =
11: the result is 1 KΩ.
OR [1:0]
00
01
10
11
Sensed bits meaning relates to the I/O being sensed as input or output. Read only. Sensed bits (when output sense
cycle initiated). This field allows for the reporting of the type of output peripheral/device plugged in the jack. Values
specified below should be interrogated with the SR [5:0] and OR [1:0] for accurate reporting.
S [4:0]
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B–0x0E
0x0F
0x10–0x1F
Sensed bits (when input sense cycle initiated). This field allows for the reporting of the type of input peripheral/device
plugged in the jack. Values specified below should be interrogated with the SR [5:0] and OR [1:0] bits for accurate
reporting.
ST [2:0]
0x10
0x11
0x12
0x13
D15
ST2
D14
ST1
D13
ST0
Order Value
10
10
10
10
Sense Value
Data not valid. Indicates that the reported value(s) is invalid
No connection. Indicates that there are no connected devices
Indicates a specific fingerprint value for devices that are not specified or are
unknown
Speakers (8 Ω)
Speakers (4 Ω)
Powered speakers
Stereo headphone
SPDIF out (electrical)
SPDIF out (TOS)
Mono headset (mono speaker left channel and mic. Read Functions 5 and 6 for
matching microphone)
Allows a vendor to report sensing other type of devices/peripherals. SR [5:0]
together with OR [1:0] provide information regarding the type of device sensed
Reserved
Unknown (use fingerprint)
Reserved
Sense Value
Data not valid. Indicates that the reported value(s) is invalid
No connection. Indicates that there are no connected devices
Indicates a specific fingerprint value for devices that are not specified or are
unknown
Microphone (mono)
0
1
2
3
—SR bits indicate the actual impedance in ohms
—SSR bits indicate the impedance in ohms × 10
—SR bits indicate the impedance in ohms × 100
—SSR bits indicate the impedance in ohms × 1,000
D12
S4
D11
S3
D10
S2
Rev. 0 | Page 46 of 52
D9
S1
D8
S0
D7
OR1
D6
OR0
D5
SR5
Preliminary Technical Data
0x
D4
SR4
66 D [04:01])). The ST [2:0] bits are
D3
SR3
SR2
D2
D1
SR1
D0
SR0
Default
Default: 0
Default
Default
Default
0xxxxx
Default