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WM8753LEB/V 데이터시트(PDF) 44 Page - Wolfson Microelectronics plc

부품명 WM8753LEB/V
상세설명  HI FI AND TELEPHONY DUAL CODEC
PDF  87 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8753LEB/V 데이터시트(HTML) 44 Page - Wolfson Microelectronics plc

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Advanced Information
WM8753L
w
AI Rev 3.1 June 2004
44
MONO1 OUTPUT
The MONO1 pin can drive a mono line output. The signal volume on MONO1 can be adjusted under
software control by writing to MONO1VOL.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
6:0
MONO1VOL
[6:0]
1111001
(0dB)
MONO1 Volume
1111111 = +6dB
… (1.0 dB steps)
0110000 = -73dB
0101111
to
0000000
=
Analogue
MUTE
R44 (2Ch)
MONOOUT
Volume
7
MOZC
0
MONO1 zero cross enable
1 = Change gain on zero cross only
0 = Change gain immediately
Table 37 MONO1 Volume Control
MONO2
The MONO2 pin can drive a mono line output and may be configured to output either an inverted
MONO1 output, the output from the left or right mixer or a mono mix of the left and right mixer
outputs.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R45 (2Dh)
Output
Control
8:7
MONO2SW[1:0]
00
MONO2 Output Select
00 = inverted MONO1
01 = Left Mix / 2
10 = Right Mix / 2
11 = (Left Mix + Right Mix ) / 2
Table 38 MONO2 Output Select
OUT3 OUTPUT
The OUT3 pin can drive a 16
Ω or 32Ω headphone or a line output or be used as a DC reference for a
headphone output (see Headphone Output section). It can be selected to either drive out an inverted
ROUT2 or mono mix of the left and right mixers for e.g. an earpiece drive between OUT3 and LOUT1
or differential output between OUT3 and MONOOUT. This output is enabled by setting bit OUT3.
OUT3SW[1:0] selects the mode of operation required.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R45 (2Dh)
Output
Control
1:0
OUT3SW
[1:0]
00
OUT3 select
00 = VREF
01 = ROUT2 signal
(volume controlled by ROUT2VOL)
10 = (Left Mixer + Right Mixer) / 2
11 = unused
Table 39 OUT3 Select



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