WM8753LEB/RV WOLFSON [Wolfson Microelectronics plc], WM8753LEB/RV Datasheet - Page 43
WM8753LEB/RV
Manufacturer Part Number
WM8753LEB/RV
Description
HI FI AND TELEPHONY DUAL CODEC
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8753LEBRV.pdf
(87 pages)
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WM8753L
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Table 35 LOUT1/ROUT1 Volume Control
Table 36 LOUT2/ROUT2 Volume Control
LOUT2/ROUT2 OUTPUTS
The LOUT2 and ROUT2 output pins are essentially similar to LOUT1 and ROUT1, but they are
independently controlled and can also drive an 8
speaker drive, the ROUT2 signal must be inverted (ROUT2INV = 1), so that the left and right channel
are mixed to mono in the speaker [L–(-R) = L+R].
R40 (28h)
LOUT1
Volume
R41 (29h)
ROUT1
Volume
R42 (2Ah)
LOUT2
Volume
R43 (2Bh)
ROUT2
Volume
R45 (2Dh)
Output
Control
REGISTER
REGISTER
ADDRESS
ADDRESS
8
7
6:0
8
7
6:0
6:0
7
8
6:0
7
8
2
BIT
BIT
LO1VU
LO1ZC
LOUT1VOL
[6:0]
RO1VU
RO1ZC
ROUT1VOL
[6:0]
LOUT2VOL
[6:0]
LO2ZC
LO2VU
ROUT2VOL
[6:0]
RO2ZC
RO2VU
ROUT2INV
LABEL
LABEL
1111001
(0dB)
0
0
1111001
(0dB)
0
0
0
DEFAULT
0
0
1111001
(0dB)
0
0
1111001
DEFAULT
mono speaker (see Speaker Output section). For
Same as LOUT1VOL
Left zero cross enable
1 = Change gain on zero cross only
0 = Change gain immediately
Same as LO1VU
Same as ROUT1VOL
Left zero cross enable
1 = Change gain on zero cross only
0 = Change gain immediately
Same as RO1VU
ROUT2 Invert
0 = No Inversion (0 phase shift)
1 = Signal inverted (180 phase shift)
Left Volume Update
0 = Store LOUT1VOL in intermediate
latch (no gain change)
1 = Update left and right channel gains
(left = LOUT1VOL, right = intermediate
latch)
Left zero cross enable
1 = Change gain on zero cross only
0 = Change gain immediately
LOUT1 Volume
1111111 = +6dB
… (1.0 dB steps)
0110000 = -73dB
0101111 to 0000000 = Analogue
MUTE
0 = Store ROUT1VOL in intermediate
latch (no gain change)
1 = Update left and right channel gains
(left = intermediate latch, right =
ROUT1VOL)
Left zero cross enable
1 = Change gain on zero cross only
0 = Change gain immediately
ROUT1 Volume
Similar to LOUT1VOL
Right Volume Update
DESCRIPTION
DESCRIPTION
AI Rev 3.1 June 2004
Advanced Information
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