WM8352GEB/V Wolfson Microelectronics, WM8352GEB/V Datasheet - Page 193

• Manufacturer Part Number: WM8352GEB/V
• Description: Audio CODECs Audio CODEC plus pwr management
• Manufacturer: Wolfson Microelectronics

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

Production Data
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The applicable register bits are defined in Table 134.
R12 (0Ch)
Power
Mgmt (5)
R218 (DAh)
RTC Tick
Control
Note: RTC_TICK_ENA can be accessed through R12 or through R218. Reading from or writing to
either register location has the same effect.
Table 134 Controlling the RTC Frequency Trim
ADDRESS
BIT
9:0
11
15
14
RTC_TICK_ENA
RTC_TICKSTS
RTC_TRIM [9:0]
LABEL
DEFAULT
00_0000_
0000
1
0
Enable RTC counting (instruction only)
0 = disabled
1 = enabled
Protected by security key.
Status of tick request. This bit can be
used to ensure the RTC is using the value
of RTC_TICK_ENA.
0 = disabled
1 = enabled
Protected by security key.
RTC frequency trim. Used to adjust the
count value of the Tick Gen block to
compensate for crystal inaccuracies.
RTC frequency trim is a 10bit fixed point
<4,6> 2's complement number. MSB
Scaling = -8Hz. The register indicates the
error (in Hz) with respect to the ideal
32768Hz) of the input crystal frequency.
e.g.:
Actual crystal freq: 32769.00Hz:
Required trim 0xb0001_000000
(+1.000000)
Actual crystal freq: 32767.00Hz:
Required trim 0xb1111_000000 (-
1.000000)
Actual crystal freq: 32775.58Hz:
Required trim 0xb0111_100101
(+7.578125)
Actual crystal freq: 32763.78Hz:
Required trim 0xb1011_110010 (-
4.218750)
Protected by security key.
DESCRIPTION
PD, March 2010, Rev 4.2
WM8352
193