WM8958 Datasheet, PDF (18/377 Pages) Wolfson Microelectronics plc – Multi-Channel Audio Hub CODEC for Smartphones

WM8958
Pre-Production
PROGRAMMABLE GAINS
Test Conditions
The following electrical characteristics are valid across the full range of recommended operating conditions.
PARAMETER
TEST CONDITIONS
MIN TYP
Input PGAs (IN1L, IN2L, IN1R and IN2R)
C1 Minimum Programmable Gain
Guaranteed monotonic
-16.5
C2 Maximum Programmable Gain
+30
C3 Programmable Gain Step Size
1.5
Input Mixers (MIXINL and MIXINR)
C6 Minimum Programmable Gain
Input PGA signal paths
0
C7 Maximum Programmable Gain
+30
C8 Programmable Gain Step Size
30
C9 Minimum Programmable Gain
Direct IN1xP input signal paths
-12
C10 Maximum Programmable Gain
(Note the available gain settings are
+15
C11 Programmable Gain Step Size
-12, -9, -6, -3, 0, +3, +6, +15dB)
3
Minimum Programmable Gain
MIXOUTx Record signal paths
-12
Maximum Programmable Gain
+6
Programmable Gain Step Size
3
C12 Minimum Programmable Gain
RXVOICE (VRXP-VRXN) signal paths
-12
C13 Maximum Programmable Gain
+6
C14 Programmable Gain Step Size
3
Output Mixers (MIXOUTL and MIXOUTR)
C17 Minimum Programmable Gain
-9
C18 Maximum Programmable Gain
0
C19 Programmable Gain Step Size
3
Speaker Mixers (SPKMIXL and SPKMIXR)
C21 Minimum Programmable Gain
-15
C22 Maximum Programmable Gain
0
C23 Programmable Gain Step Size
3
Output PGAs (HPOUT1LVOL, HPOUT1RVOL, MIXOUTLVOL, MIXOUTRVOL, SPKLVOL and SPKRVOL)
C25 Minimum Programmable Gain
Guaranteed monotonic
-57
C26 Maximum Programmable Gain
+6
C27 Programmable Gain Step Size
1
Line Output Drivers (LINEOUT1NMIX, LINEOUT1PMIX, LINEOUT2NMIX and LINEOUT2PMIX)
C29 Minimum Programmable Gain
-6
C30 Maximum Programmable Gain
0
C31 Programmable Gain Step Size
6
Earpiece Driver (HPOUT2MIX)
C33 Minimum Programmable Gain
-6
C34 Maximum Programmable Gain
0
C35 Programmable Gain Step Size
6
Speaker Output Drivers (SPKOUTLBOOST and SPKOUTRBOOST)
C38 Minimum Programmable Gain
(Note the available gain settings are
0
C39 Maximum Programmable Gain
0, +1.5, +3, +4.5, +6, +7.5, +9, +12dB)
+12
C40 Programmable Gain Step Size
1.5
MAX
UNIT
dB
dB
dB
dB
dB
dB
dB
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dB
dB
dB
dB
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dB
dB
dB
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dB
w
PP, August 2012, Rev 3.4
18