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SC14CVMDECT Datenblatt(PDF) 40 Page - Dialog Semiconductor

Teilenummer SC14CVMDECT
Bauteilbeschribung  Cordless Voice Module
PDF  57 Pages
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Hersteller  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
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SC14CVMDECT Datenblatt(HTML) 40 Page - Dialog Semiconductor

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Datasheet
Revision 3.0
28-Jul-2015
CFR0011-120-00-FM Rev 5
40 of 57
© 2013 Dialog Semiconductor
SC14CVMDECT SF
Cordless Voice Module
FINAL
Note 31: Clipping of the outputs occurs when the VDDPA drops and the following conditions becomes true. If CLASSD_CTRL_REG[CLASSD_CLIP]
is not equal to zero then upon a programmable number of clipping occurrences a CLASSD_INT is generated:
The software can stop clipping by reducing the gain via the GENDSP:
Clipping occurs if
Cp2
Parallel load
capacitance
see Figure 31
30
pF
Cs2
Serial load capacitance
30
F
Rl2
Load resistance
600
Table 28: LSRp/LSRn load circuits
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
Figure 30: Load circuit A: Dynamic loudspeaker
RL1
Cp1
LSRp
LSRn
Figure 31: Load circuit B: Piezo loudspeaker
Cs2
LSRp
LSRn
RL2
Cp2
Table 29: PAOUTp, PAOUTn outputs
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
Vpa_4v
Differential rms output
voltage between
PAOUTp and PAOUTn
Trimmed bandgap
input = 0 dBm0, 1 kHz
(Note 27)
Output low-pass filtered
CLASSD_VOUT = 0
0.985
Vrms
Vpa_6v
As above
CLASSD_VOUT = 1
1.478
Vrms
Zload_pa_4v
Speaker impedance,
connected between
PAOUTp and PAOUTn
With these values, the peak cur-
rents stays within the operating
range.
4
Zload_pa_6v
6
Table 30: PAOUTp, PAOUTn outputs (Note 31)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
Rout_pa
Differential output
resistance between
PAOUTp and PAOUTn
See (Note 31)
1
peak LowPassFiltered PAOUTp PAOUTm
–


VDDPA VSSPA
–
-----------------------------------------------------------------------------------------------------------------------------
Zload
Zload Rout_pa
+
------------------------------------------



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