WM8523GEDT/R Wolfson Microelectronics, WM8523GEDT/R Datasheet - Page 17

• Manufacturer Part Number: WM8523GEDT/R
• Description: DAC, STEREO, 2VRMS, 2CH, 20TSSOP
• Manufacturer: Wolfson Microelectronics

Specifications of WM8523GEDT/R

• Resolution (bits): 24bit
• Sampling Rate: 192kSPS
• Input Channel Type: Serial
• Digital Ic Case Style: TSSOP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Base: RoHS Compliant
• Data Interface: I2C, Serial, SPI
• Supply Voltage Range - Analogue: 2.97V To 3.63V
• Rohs Compliant: Yes

Pre-Production
DEVICE DESCRIPTION
INTRODUCTION
SOFTWARE CONTROL INTERFACE
w
The WM8523 provides high fidelity, 2V
with minimal external components. The integrated DC servo eliminates the requirement for external
mute circuitry by minimising DC transients at the output during power up/down. The device is well-suited
to both stereo and multi-channel systems.
The device supports all common audio sampling rates between 8kHz and 192kHz using common MCLK
fs rates. Master and slave modes are available.
The WM8523 supports both hardware and software control modes.
In hardware control mode, the digital audio interface format is switchable between 16 to 24bits LJ, RJ
and I
In software control modes the digital audio interface is highly programmable, with four control interface
addresses to allow multiple WM8523 devices to be configured independently.
Software Control Mode is selected by logic 1 or 0 on the CIFMODE pin. The logic level is referenced to
the LINEVDD power domain. When software mode is selected, the associated multi-function control
pins are defined as described in Table 6.
Table 6 Software Control Pin Configuration
In software control mode, the WM8523 is controlled by writing to its control registers. Readback is
available for all registers, including device ID and power management status bits. The control interface
can operate as an I
SDA in I
supplied by the LINEVDD power domain.
The available software control interface modes are summarised as follows:
I
is selected.
2
C mode is selected by setting the CIFMODE pin to logic 0. When CIFMODE is set to logic 1, SPI mode
SDOUT
SDA
SCLK
CS
CIFMODE
¯ ¯
2


S. Mute and de-emphasis control pins are also available.
PIN NAME
2
C mode, and on the SDOUT pin in SPI mode. The WM8523 software control interface is
I
SPI mode uses pins CS
2
C mode uses pins SCLK and SDA.
2
C or SPI control interface: register read-back is provided on the bi-directional pin
TSSOP
PIN NUMBER
12
13
14
15
16
¯ ¯ , SCLK and SDA and SDOUT.
QFN
rms
5
6
7
8
9
ground referenced stereo line output from a single supply line
I
SPI Mode - Serial Data Output
Serial Data Input
Serial Data Clock
I
SPI Mode - Chip Select
Control Interface Mode
0 = I
1 = SPI Mode
Z = Hardware Mode
2
2
C Mode - Device Address[1]
C Mode - Device Address[0]
2
C Mode
DESCRIPTION
PP, Rev 3.0, July 2009
WM8523
17