IDTSTAC9766XXTAEC1X IDT, Integrated Device Technology Inc, IDTSTAC9766XXTAEC1X Datasheet - Page 56

• Manufacturer Part Number: IDTSTAC9766XXTAEC1X
• Description: IC CODEC AC'97 2CH 2.3 48-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9766XXTAEC1X

• Data Interface: Serial
• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 95
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9766XXTAEC1X

IDT™
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
8.1.15.
8.1.16.
LOOPBACK
Bit(s)
Bit(s)
12:10
POP BYP
15:4
6:0
3:2
1:0
15
14
13
9
8
7
D15
D15
D7
D7
General Purpose (20h)
Default: 0000h
3D Control (22h)
Default: 0000h
This register is used to control the 3D stereo enhancement function, IDT Surround 3D (SS3D), built
into the AC'97 component. Note that register bits DP3-DP2 are used to control the separation ratios
in the 3D control for LINE_OUT. SS3D provides for a wider soundstage extending beyond the nor-
mal 2-speaker arrangement. Note that the 3D bit in the general purpose register (20h) must be set to
1 to enable SS3D functionality to allow the bits in 22h to take effect.
Reset Value
Reset
Value
RESERVED
0
0
0
0
0
0
0
0
0
0
0
D14
D14
D6
D6
RESERVED
POP BYPASS
RESERVED
RESERVED
LOOPBACK
RESERVED
RESERVED
RESERVED
Name
DP3,DP2
MIX
MS
3D
Name
D13
D13
3D
D5
D5
0 = Normal
1 = DAC bypasses mixer and connects directly to Line Out, Headphone
Out and Mono Out.
Bit not used, should read back 0
0 = 3D Effect Disabled
1 = 3D Effect Enabled
Bit not used, should read back 0
Mono Output select (0 = Mix, 1 = Mic)
Mic select (0 = Mic1, 1 = Mic2)
1 = Enables ADC to DAC loopback test
0 = Loopback Disabled
Do not send in conflicting data on AC-LINK while running this.
Bit not used, should read back 0
Bits not used, should read back 0
LINE_OUT SEPARATION RATIO
DP3 DP2 effect
Bits not used, should read back 0
0
0
1
1
D12
D12
56
D4
D4
RESERVED
1
0
0
1
4.5 ( MED )
3 ( LOW )
0 ( OFF )
6 ( HIGH )
RESERVED
RESERVED
DP3
D11
D11
D3
D3
Description
Description
STAC9766/9767
D10
D10
DP2
D2
D2
MIX
D9
D1
D9
D1
RESERVED
PC AUDIO
V 7.4 12/06
MS
D8
D0
D8
D0