IDTSTAC9766XXTAEC1X IDT, Integrated Device Technology Inc, IDTSTAC9766XXTAEC1X Datasheet - Page 50

• 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
8.1.5.
8.1.6.
Bit(s)
14:13
Bit(s)
12:5
14:5
4:1
15
4:0
15
0
Mute
Mute
D15
D15
D7
D7
F2
PC BEEP Volume (0Ah)
Default: 0000h
Additional information on the PC Beep can be found in Section 7.2: page44.
Phone Volume (Index 0Ch)
Default: 8008h.
Reset Value
Reset Value
00h
1
0
0
0
RESERVED
1
0
0
D14
D14
D6
F1
D6
RESERVED
RESERVED
RESERVED
RESERVED
PV(3:0)
GN<4:0>
Name
F[7:0]
Mute
Name
Mute
D13
D13
D5
D5
F0
0 = No mute
1 = Mute PC BEEP
Bit not used, should read back 0
The Beep frequency is the result of dividing the 48KHz clock by 4 times
the number specified in F[7:0] allowing tones from 47Hz to 12KHz.
A value of 00h in bits F[7:0] disables internal PC BEEP generation and
enables external PC BEEP input if available.
PCBEEP Volume Control
0000 = 0dB attenuation
0001 = 3dB attenuation
.....
1111 = 45dB attenuation
Bit not used, should read back 0
0 = No mute
1 = Mute phone
Bit not used, should read back 0
Phone Volume Control
00000 =
00001 = 10.5dB gain
.....
01000 =
.....
11111 = -34.5dB gain
GN4
PV3
D12
D12
50
D4
D4
F7
12dB gain
0dB gain
RESERVED
GN3
D11
PV2
D11
D3
D3
F6
Description
Description
STAC9766/9767
GN2
D10
PV1
D10
F5
D2
D2
GN1
PV0
D9
D1
D9
D1
F4
PC AUDIO
RSRVD
GN0
V 7.4 12/06
D8
D0
D8
D0
F3