ALC101
REALTEK/AVANCE LOGIC, INC.
TWO CHANNEL AC’97 AUDIO CODEC
ALC101
1. Features........................................................................ 2
2. General Description .................................................... 2
3. Block Diagram............................................................. 3
4. Pin Assignments .......................................................... 4
5. Pin Description ............................................................ 5
5.1 Digital I/O Pins ...................................................... 5
5.2 Analog I/O Pins...................................................... 5
5.3 Filter/Reference...................................................... 6
5.4 Power/Ground ........................................................ 6
5.5 Others..................................................................... 6
6. Registers....................................................................... 7
6.1 Mixer Registers ...................................................... 7
6.2 MX00 Reset ........................................................... 8
6.3 MX02 Master Volume (LINE-OUT) ..................... 8
6.4 MX0A PCBEEP Volume....................................... 9
6.5 MX0C PHONE Volume ........................................ 9
6.6 MX0E MIC Volume .............................................. 9
6.7 MX10 LINE_IN Volume ..................................... 10
6.8 MX12 CD Volume............................................... 10
6.9 MX16 AUX Volume............................................ 10
6.10 MX18 PCM_OUT Volume................................ 11
6.11 MX1A Record Select ......................................... 11
6.12 MX1C Record Gain ........................................... 12
6.13 MX20 General Purpose Register ....................... 12
6.14 MX22 3D Control .............................................. 12
6.15 MX26 Powerdown Control/Status ..................... 13
6.16 MX28 Extended Audio ID................................. 13
6.17 MX7C VENDOR ID1....................................... 14
6.18 MX7E VENDOR ID2....................................... 14
7. Electrical Characteristics ......................................... 15
7.1 DC Characteristics ............................................... 15
7.1.1 Absolute Maximum Ratings......................... 15
7.1.2 Threshold Hold Voltage ............................... 15
7.1.3 Digital Filter Characteristics....................... 15
7.2 AC Timing Characteristics................................... 16
7.2.1 Cold Reset .................................................... 16
7.2.2 Warm Reset .................................................. 16
7.2.3 AC-Link Clocks ........................................... 17
7.2.4 Data Output and Input Times ....................... 18
7.2.5 Signal Rise and Fall Times........................... 19
7.2.6 AC-Link Low Power Mode Timing ............. 20
7.2.7 ATE Test Mode ............................................ 21
7.2.8 AC-Link IO Pin Capacitance and Loading .. 21
7.2.9 BIT-CLK and SDATA-IN State................... 21
8. Analog Performance Characteristics ...................... 22
9. Design Suggestions.................................................... 23
9.1 Clocking............................................................... 23
9.2 AC-Link ............................................................... 23
9.3 Reset..................................................................... 23
9.4 CD Input .............................................................. 24
9.5 Odd Addressed Register Access .......................... 24
9.6 Power-down Mode............................................... 24
9.7 Test Mode ............................................................ 24
9.7.1 ATE In Circuit Test Mode............................ 24
9.7.2 Vendor Specific Test Mode.......................... 24
10. Application Circuit ................................................. 25
10.1 48-pin LQFP Filter Connection Diagram .......... 25
10.2 20-pin SOP Filter Connection Diagram............. 25
11. Mechanical Dimensions .......................................... 26
11.1 LQFP-48 ............................................................ 26
11.2 SOP-20............................................................... 27
2001/12/5
1
Rev.1.24
