NAU8812EVB Nuvoton Technology Corporation of America, NAU8812EVB Datasheet - Page 41

• Manufacturer Part Number: NAU8812EVB
• Description: BOARD EVAL FOR NAU8812
• Manufacturer: Nuvoton Technology Corporation of America
• Series: emPowerAudio™r

Specifications of NAU8812EVB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The device contains an on-chip temperature sensor that senses the temperature inside the package. By enabling the
temperature sensor interrupt in GPIOSEL[2:0] address (0x08), an interrupt will be generated if the temperature
reaches a threshold of approximately 125°C. This facilitates control of the temperature should the device get close to
the junction temperature. Note that there is no filtering associated with this temperature alarm since the package has
an intrinsic thermal time constant. The thermal temperature is enabled by setting TSEN[1] address (0x31).
emPowerAudio
Datasheet Revision 2.0
GPIOSEL[2:0]
GPIOPLL[4:5]
MOUTEN[7]
PSPKEN[5]
NSPKEN[6]
12.7.3. Thermal Shutdown
SCLKEN[0]
GPIOPL[3]
TSEN[1]
Bit(s)
Bit(s)
™
Addr
0x08
0x08
0x08
0x03
0x03
0x03
0x07
0x31
Addr
GPIO select
GPIO polarity
GPIO PLL divider
Speaker positive terminal enable
Speaker negative terminal enable
MONO Output enable
Slow clock enable
Table 21: Jack Insert Detect controls
Table 22: Thermal Shutdown
Temperature Sense Enable
Parameter
Page 41 of 109
Parameter
0 - CSb Input
1 - Jack Detect
2 - Temperature OK
3 - AMUTE Active
4 - PLL Frequency Output
5 - PLL Lock (0- Locked, 1 – Not Locked)
6 - HIGH
7 - LOW
0 – Non- Inverted
1 – Inverted
0 - Divide by 1
1 - Divide by 2
2 - Divide by 3
3 - Divide by 4
0 – Muted
1 – Enabled
0 – Muted
1 – Enabled
0 – Muted
1 – Enabled
Period 2
0: Thermal Shutdown Disable
1: Thermal Shutdown Enable
21
Programmable Range
* MCLK
Programmable Range
NAU8812
January 2011