WM8955BL Wolfson Microelectronics, WM8955BL Datasheet - Page 4

• Manufacturer Part Number: WM8955BL
• Description: Stereo DAC
• Manufacturer: Wolfson Microelectronics

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WM8955BL
PIN DESCRIPTION
PIN NO
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
MONOOUT
MONOIN+
MONOIN-
DACDAT
DACLRC
PLLGND
LINEINR
LINEINL
DCVDD
HPGND
DBVDD
ROUT1
ROUT2
HPVDD
LOUT1
LOUT2
DGND
MODE
MCLK
AVDD
AGND
NAME
BCLK
OUT3
VREF
SCLK
VMID
SDIN
CSB
Digital Input / Output
Digital Input / Output
Digital Input/Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
Digital Core Supply
Digital Buffer (I/O) Supply
Digital Ground (return path for both DCVDD and DBVDD)
DAC Digital Audio Data
Internally connected to AGND. Connect this pin to AGND externally
for best PLL performance, or leave floating.
Mono Output
Output 3 (can be used as Headphone Pseudo Ground)
Right Output 1 (Line or Headphone)
Left Output 1 (Line or Headphone)
Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2)
Right Output 2 (Line or Headphone or Earpiece)
Left Output 2 (Line or Headphone or Earpiece)
Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2, MONOUT)
Analogue Supply
Analogue Ground (return path for AVDD)
Negative end of MONOIN+, for differential mono signals
Analogue Line-in to mixers (mono channel)
Analogue Line-in to mixers (right channel)
Analogue Line-in to mixers (left channel)
Control Interface Selection
Control Interface Data Input / 2-wire Acknowledge output
Control Interface Clock Input
Master Clock
Audio Interface Bit Clock
Audio Interface Left / Right Clock
Reference Voltage Decoupling Capacitor
Midrail Voltage Decoupling Capacitor
Chip Select / Device Address Selection
DESCRIPTION
PD Rev 4.1 February 2007
Production Data
4