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DA7219 Datasheet(PDF) 67 Page - Dialog Semiconductor

Part # DA7219
Description  Audio codec with Advanced Accessory Detect
PDF  123 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA7219 Datasheet(HTML) 67 Page - Dialog Semiconductor

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DA7219
Audio codec with Advanced Accessory Detect
Company confidential
Datasheet
Revision 2.1
17-Dec -2015
67 of 123
© 2015 Dialog Semiconductor
Table 55: ACCDET_CONFIG_7 (Page 0: 0x000000CC)
Bit
Mode
Symbol
Description
Reset
5
R/W
jack_type_force
Specifies the Jack type when jack type detection is
disabled (jack_type_det_en is 0)
0 = 3-pole jack is specified
1 = 4-pole jack is specified
0x0
4
R/W
pin_order_force
Specifies the jack pin order for 4-Pole Jacks when
pin order detection is disabled (pin_order_det_en =
0)
0 = LRGM (CTIA format)
1 = LRMG (OMTP format)
0x0
3:2
R/W
adc_1_bit_repeat
Sets the number of repeated 1-bit measurements.
Repeating the 1-bit measurements multiple times
gives greater noise immunity but adds latency, and
possible distortion, during periodic button checking
00 = One 1-bit measurement (default)
01 = Two 1-bit measurements
10 = Four 1-bit measurements
11 = Eight 1-bit measurements
0x0
1:0
R/W
button_average
Sets the number of repeated 8-bit ADC
measurements used to generate an averaged result
Using more measurements for averaging will
increase button-checking noise immunity but also
increases the detection latency by about 1 ms per
measurement
00 = One 8-bit measurement (no averaging)
01 = Two 8-bit measurements used for averaging
(default)
10 = Four 8-bit measurements used for averaging
11 = Eight 8-bit measurements used for averaging
0x1
Table 56: ACCDET_CONFIG_8 (Page 0: 0x000000CD)
Bit
Mode
Symbol
Description
Reset
4
R
hptest_comp
HP TEST comparator result
1 = HP Impedance is < Threshold
0 = HP Impedance is > Threshold
0x0
2:1
R/W
hptest_res_sel
HP Impedance Test threshold control
00 - 1000
Ω
01 = 2500
Ω
10 = 5000
Ω
11 = 10000
Ω
0x1
0
R/W
hptest_en
Headphone Impedance test block control
0 = HP Impedance test block disabled
1 = HP Impedance test block enabled
0x0



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