WM8746 Wolfson Microelectronics plc, WM8746 Datasheet - Page 4

• Manufacturer Part Number: WM8746
• Description: 24-bit, 192khz 6-channel Dac With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8746
PIN DESCRIPTION
Note:
1.
w
Digital input pins have Schmitt trigger input buffers
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
MC/IWL
LRCIN2
MD/DM
AVDD2
OUT2R
AGND1
OUT1R
AGND2
OUT0R
AVDD1
OUT2L
OUT1L
OUT0L
BCKIN
ML/I2S
LRCIN
MODE
DGND
DVDD
MUTE
NAME
SCKI
DIN0
DIN1
DIN2
CAP
GR2
GR1
GR0
Digital bidirectional
Internal pull-down
Analogue output
Analogue output
Analogue output
Analogue output
Analogue output
Analogue output
Analogue output
Analogue input
Analogue input
Analogue input
Internal pull-up
Internal pull-up
Internal pull-up
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Digital input
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
Digital Positive Supply.
System Clock Input
Audio Data Bit Clock Input.
DAC Sample Rate Clock Input
Channel 0 Serial Audio Data Input.
Channel 1 Serial Audio Data Input.
Channel 2 Serial Audio Data Input.
Control Method Selection Pin.
Low = Software Mode
High = Hardware Control Mode
Mute Control Pin in PCM Mode.
Input
Low: Not Mute
High: Mute
Z: Automute
2
Digital GND
Software mode: 3-Wire Serial Control Latch
Hardware Mode: Input Format Selection:
Software Mode: 3-Wire Serial Control Clock Input
Hardware mode: Input Word Length Selection:
Software mode: 3-Wire Serial Control Data Input
Hardware mode: De-emphasis selection
Analogue Positive DAC Reference
Analogue Internal Mid-Rail Reference De-Coupling Point
Left Channel 2 Output.
Channel 2 Negative Reference.
Right Channel 2 Output.
Analogue GND
Left Channel 1 Output.
Channel 1 Negative Reference.
Right Channel 1 Output.
Analogue GND
Left Channel 0 Output.
Channel 0 Negative Reference.
Right Channel 0 Output.
Analogue VDD
nd
LRCIN for use in mixed 192kHz/96kHz operation (bit 2SPD = ‘hi’)
DESCRIPTION
Output (Automute Enabled)
Low: Mute Off
High: Mute On (Zero Flag)
PD, October 2008, Rev 4.2
Production Data
4