STAC9708 Datasheet, PDF (11/56 Pages) List of Unclassifed Manufacturers – Multi-Channel AC97 Codec With Multi-Codec Option

SigmaTel, Inc.
Preliminary
STAC9708/11
DAC_OUT_L
O
Surround DAC Out Left Channel
DAC_OUT_R
O
Surround DAC Out Right Channel
* Note: any unused input pins should have a capacitor (1 uF suggested) to ground.
1.3 Filter/References/GPIO
These signals are connected to resistors, capacitors, specific voltages, or provide general purpose I/O.
Table 5. Filtering and Voltage References
SIGNAL NAME TYPE
DESCRIPTION
Vref
O
Reference Voltage
Vrefout
O Reference Voltage out 5mA drive (intended for mic bias)
AFILT1
O
Anti-Aliasing Filter Cap - ADC channel
AFILT2
O
Anti-Aliasing Filter Cap - ADC channel
CAP1
O
Analog Output Hold-Off Delay
CAP2
O
ADC reference Cap
CAP3
O
Anti-Pop Power Sustain Delay
APOP
O
Anti-Pop Output Ground Shunt Control
EAPD
O
External Amplifier Power Down Control
11
10/02/98