WM8352GEB/V Wolfson Microelectronics, WM8352GEB/V Datasheet - Page 208
WM8352GEB/V
Manufacturer Part Number
WM8352GEB/V
Description
Audio CODECs Audio CODEC plus pwr management
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8352GEBV.pdf
(335 pages)
Specifications of WM8352GEB/V
Number Of Adc Inputs
2
Number Of Dac Outputs
2
Conversion Rate
48 KSPS
Interface Type
Serial (2-Wire, 3-Wire, 4-Wire)
Resolution
12 bit
Operating Supply Voltage
3.7 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
BGA
Minimum Operating Temperature
- 25 C
Number Of Channels
2 ADC/2 DAC
Supply Current
260 uA
Thd Plus Noise
- 83 dB
Audio Codec Type
Stereo
No. Of Adcs
2
No. Of Dacs
2
No. Of Input Channels
8
No. Of Output Channels
6
Adc / Dac Resolution
24bit
Adcs / Dacs Signal To Noise Ratio
95dB
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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WM8352
25 TEMPERATURE SENSING
25.1 CHIP TEMPERATURE MONITORING
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The WM8352 has a built-in sensor to monitor its internal temperature, with two levels of over-
temperature protection.
When the device temperature exceeds the thermal warning temperature, the WM8352 raises a
SYS_CHIP_GT115_EINT interrupt. If the chip temperature continues to rise, and exceeds the
thermal shutdown temperature, the SYS_CHIP_GT140_EINT interrupt is set and the device shuts
down. After a thermal shutdown, the WM8352 can only restart after its temperature has fallen below
the restart temperature.
The associated register fields are defined in Table 154.
R26 (1Ah)
Interrupt
Status 2
R34 (22h)
Interrupt
Status 2 Mask
Table 154 Temperature Sensing Interrupts
ADDRESS
BIT
2:1
2
1
SYS_CHIP_GT115_EINT
SYS_CHIP_GT140_EINT
“IM_” + name of respective bit
in R26
LABEL
Chip over 115°C temp limit.
(Rising Edge triggered)
Note: This bit is cleared once read.
Chip over 140°C temp limit.
(Rising Edge triggered)
Note: This bit is cleared once read.
Each bit in R34 enables or masks the
corresponding bit in R26. The default
value for these bits is 0 (unmasked).
PD, March 2010, Rev 4.2
DESCRIPTION
Production Data
208
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