WM8985GEFL Wolfson Microelectronics, WM8985GEFL Datasheet - Page 107

• Manufacturer Part Number: WM8985GEFL
• Description: Audio CODECs Multimedia CODEC with Class D HP
• Manufacturer: Wolfson Microelectronics

Specifications of WM8985GEFL

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
w
46 (2Eh)
47 (2Fh)
48 (30h)
REGISTER
ADDRESS
8
7
6
5:0
8
7
6:4
3
2:0
8
7
6:4
3
BIT
INPPGAU
INPPGAZCR
INPPGAMUTER
INPPGAVOLR
PGABOOSTL
L2_2BOOSTVOL
AUXL2BOOSTVOL
PGABOOSTR
R2_2BOOSTVOL
LABEL
N/A
0
0
010000
1
0
000
0
000
1
0
000
0
DEFAULT
INPPGAVOLL and INPPGAVOLR volume do
not update until a 1 is written to
INPPGAUPDATE (in reg 45 or 46)
Right channel input PGA zero cross enable:
0=Update gain when gain register changes
1=Update gain on 1
register write.
Mute control for right channel input PGA:
0=Input PGA not muted, normal operation
1=Input PGA muted (and disconnected from the
following input BOOST stage).
Right channel input PGA volume
000000 = -12dB
000001 = -11.25db
.
010000 = 0dB
.
111111 = +35.25dB
Boost enable for left channel input PGA:
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
Reserved. Initialise to 0
Controls the L2 pin to the left channel input
boost stage:
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved. Initialise to 0
Control omm. arylliary amplifer to the left
channel input boost stage:
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Boost enable for right channel input PGA:
0 = PGA output has +0dB gain through input
BOOST stage.
1 = PGA output has +20dB gain through input
BOOST stage.
Reserved. Initialise to 0
Controls the R2 pin to the right channel input
boost stage:
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved. Initialise to 0
DESCRIPTION
st
zero cross after gain
PD, Rev 4.6, July 2009
Input Signal
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Input Signal
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REFER TO
WM8985
107