WM8523GEFL/RV Wolfson Microelectronics, WM8523GEFL/RV Datasheet - Page 26

• Manufacturer Part Number: WM8523GEFL/RV
• Description: IC, DAC, STEREO, 2VRMS, 2CH, 24QFN
• Manufacturer: Wolfson Microelectronics

Specifications of WM8523GEFL/RV

• Resolution (bits): 24bit
• Sampling Rate: 192kSPS
• Input Channel Type: Serial
• Digital Ic Case Style: QFN
• No. Of Pins: 24
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Package: RoHS Compliant
• Data Interface: I2C, Serial, SPI
• Supply Voltage Range - Analogue: 2.97V To 3.63V
• Rohs Compliant: Yes

WM8523
DIGITAL AUDIO DATA SAMPLING RATES
Table 11 MCLK Frequencies and Audio Sample Rates
w
RATE LRCLK
SAMPLING
176.4kHz
44.1kHz
88.2kHz
192kHz
32kHz
48kHz
96kHz
8kHz
Unavailable
Unavailable
Unavailable
Unavailable
11.2896
22.5792
12.288
24.576
128fs
The external master clock is applied directly to the MCLK input pin. In a system where there are a
number of possible sources for the reference clock, it is recommended that the clock source with the
lowest jitter be used for the master clock to optimise the performance of the WM8523.
In slave mode the WM8523 has a detection circuit that automatically determines the relationship
between the master clock frequency (MCLK) and the sampling rate (LRCLK), to within ±32 system clock
periods. The MCLK must be synchronised with the LRCLK, although the device is tolerant of phase
variations or jitter on the MCLK.
The DAC supports MCLK to LRCLK ratios of 128fs to 1152fs and sampling rates of 8kHz to 192kHz,
provided the internal signal processing of the DAC is programmed to operate at the correct rate.
Table 11 shows typical master clock frequencies and sampling rates supported by the WM8523 DAC.
Unavailable
Unavailable
Unavailable
Unavailable
16.9344
33.8688
18.432
36.864
192fs
Unavailable
Unavailable
11.2896
22.5792
MASTER CLOCK FREQUENCY (MHz)
12.288
24.576
256fs
2.048
8.192
Unavailable
Unavailable
16.9344
33.8688
18.432
36.864
12.288
384fs
3.072
Unavailable
Unavailable
Unavailable
Unavailable
22.5792
16.384
24.576
512fs
4.096
Unavailable
Unavailable
Unavailable
Unavailable
33.8688
24.576
36.864
768fs
6.144
PP, Rev 3.0, July 2009
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Pre-Production
1152fs
36.864
9.216
26