Datasheet

10
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Table 4-14. Power Signal Description
Table 4-15. Audio Power Signal Description
Table 4-16. Stereo Audio Dac and Mono Power Amplifier Signal Description
Signal
Name Type Description
Alternate
Function
VDD PWR
Digital Supply Voltage
Connect these pins to +3V supply voltage.
-
VSS GND
Circuit Ground
Connect these pins to ground.
-
ADCVDD PWR
Analog Supply Voltage
Connect this pin to +3V supply voltage.
-
ADCVSS PWR
Analog Ground
Connect this pin to ground.
-
PVDD PWR
PLL Supply voltage
Connect this pin to +3V supply voltage.
-
PVSS GND
PLL Circuit Ground
Connect this pin to ground.
-
UVDD PWR
USB Supply Voltage
Connect this pin to +3V supply voltage.
-
UVSS GND
USB Ground
Connect this pin to ground.
-
Signal Name Type Description
Alternate
Function
AUDVDD PWR Audio Digital Supply Voltage -
AUDVSS GND
Audio Circuit Ground
Connect these pins to ground.
-
ESDVSS GND
Audio Analog Circuit Ground for Electrostatic Discharge.
Connect this pin to ground.
-
AUDVREF PWR Audio Voltage Reference pin for decoupling. -
HSVDD PWR Headset Driver Power Supply. -
HSVSS GND
Headset Driver Ground.
Connect this pin to ground.
-
AUDVBAT PWR Audio Amplifier Supply. -
Signal Name Type Description
Alternate
Function
LPHN O Low Power Audio Stage Output -
HPN O Negative Speaker Output -
HPP O Positivie Speaker Output -
CBP O Audio Amplifier Common Mode Voltage Decoupling -