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WM8955LEFL 数据表(PDF) 3 Page - Wolfson Microelectronics plc

部件名 WM8955LEFL
功能描述  STEREO DAC FOR PORTABLE AUDIO APPLICATIONS
PDF  43 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8955LEFL 数据表(HTML) 3 Page - Wolfson Microelectronics plc

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Product Preview
WM8955L
w
Product Preview Rev 0.4 May2003
3
PIN DESCRIPTION
PIN #
NAME
TYPE
DESCRIPTION
1MCLK
Digital Input
Master Clock
2DCVDD
SupplyDigital Core Supply
3DBVDD
SupplyDigital Buffer (I/O) Supply
4DGND
SupplyDigital Ground (return path for both DCVDD and DBVDD)
5BCLK
Digital Input / Output
Audio Interface Bit Clock
6DACDAT
Digital Input
DAC Digital Audio Data
7DACLRC
Digital Input / Output
Audio Interface Left / Right Clock
8CLKOUT
Digital Output
Buffered Clock Output (from MCLK or internal PLL)
9
PLLGND
SupplyInternally
connected to AGND. Connect this pin to AGND externally
for best PLL performance, or leave floating.
10
MONOOUT
Analogue Output
Mono Output
11
OUT3
Analogue Output
Output 3 (can be used as Headphone Pseudo Ground)
12
ROUT1
Analogue Output
Right Output 1 (Line or Headphone)
13
LOUT1
Analogue Output
Left Output 1 (Line or Headphone)
14
HPGND
SupplySupply
for Analogue Output Drivers (LOUT1/2, ROUT1/2)
15
ROUT2
Analogue Output
Right Output 1 (Line or Headphone or Speaker)
16
LOUT2
Analogue Output
Left Output 1 (Line or Headphone or Speaker)
17
HPVDD
SupplySupply
for Analogue Output Drivers (LOUT1/2, ROUT1/2, MONOUT)
18
AVDD
SupplyAnalogue Supply
19
AGND
SupplyAnalogue Ground (return path for AVDD)
20
VREF
Analogue Output
Reference Voltage Decoupling Capacitor
21
VMID
Analogue Output
Midrail Voltage Decoupling Capacitor
22
NC
No Connect
No Internal Connection
23
HPDETECT
Logic Input
Headphone / Speaker switch (referred to AVDD)
24
NC
No Connect
No Internal Connection
25
MONOIN-
Analogue Input
Negative end of MONOIN+, for differential mono signals
26
MONOIN+
Analogue Input
Analogue Line-in to mixers (mono channel)
27
LINEINR
Analogue Input
Analogue Line-in to mixers (right channel)
28
LINEINL
Analogue Input
Analogue Line-in to mixers (left channel)
29
MODE
Digital Input
Control Interface Selection
30
CSB
Digital Input
Chip Select / Device Address Selection
31
SDIN
Digital Input/Output
Control Interface Data Input / 2-wire Acknowledge output
32
SCLK
Digital Input
Control Interface Clock Input



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