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CS47L85 Datasheet(PDF) 228 Page - Cirrus Logic

Part # CS47L85
Description  Low-Power Smart Codec with Seven DSP Cores, Voice and Media Enhancement, and Integrated Sensor Hub
PDF  370 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS47L85 Datasheet(HTML) 228 Page - Cirrus Logic

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CS47L85
228
Rev 4.3
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R723
(02D3h)
Jack_detect
_analogue
1
JD2_ENA
0
JACKDET2 enable
0 = Disabled
1 = Enabled
0
JD1_ENA
0
JACKDET1 enable
0 = Disabled
1 = Enabled
R6278
(1886h)
IRQ1_Raw_
Status_7
2
JD2_STS1
0
JACKDET2 input status
0 = Jack not detected
1 = Jack is detected
(Assumes the JACKDET2 pin is pulled
‘low’ on Jack insertion.)
0
JD1_STS1
0
JACKDET1 input status
0 = Jack not detected
1 = Jack is detected
(Assumes the JACKDET1 pin is pulled
‘low’ on Jack insertion.)
R6534
(1986h)
IRQ2_Raw_
Status_7
2
JD2_STS2
0
JACKDET2 input status
0 = Jack not detected
1 = Jack is detected
(Assumes the JACKDET2 pin is pulled
‘low’ on Jack insertion.)
0
JD1_STS2
0
JACKDET1 input status
0 = Jack not detected
1 = Jack is detected
(Assumes the JACKDET1 pin is pulled
‘low’ on Jack insertion.)
R6662
(1A06h)
Interrupt_De
bounce_7
2
JD2_DB
0
JACKDET2 input de-bounce
0 = Disabled
1 = Enabled
0
JD1_DB
0
JACKDET1 input de-bounce
0 = Disabled
1 = Enabled
Table 85 Jack Detect Control
A recommended connection circuit, including headphone output on HPOUT1 and microphone connections, is shown in
Figure 66.
See “Applications Information” for details of recommended external components.
CS47L85
HPOUT1L
HPOUT1R
HPOUT1FB1
JACKDETn
MICDET1
Note: The illustrated circuit assumes
the jack insertion switch contacts are
closed when jack is inserted.
* Note that the IN1B or IN2B analogue
mic channel is recommended with the
external accessory detect function
(jack insertion switch)
MICBIASn
2.2k
 (+/-2%)
C
* IN1BP, IN2BLP, IN2BR
A series resistor (eg. 500k
) is recommended on
JACKDET2, in order to reduce leakage current.
Figure 66 Jack Detect and External Accessory Connections
The internal comparator circuit used to detect the JACKDETn status is illustrated in Figure 67.



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