BU26154MUV_15 Datasheet, PDF (65/90 Pages) Rohm – Monaural Audio CODEC with Touch Panel Interface

BU26154MUV
Datasheet
0x6B
-62.0
0x96
-40.5
0xC1
-19.0
0xEC
2.5
0x6C
-61.5
0x97
-40.0
0xC2
-18.5
0xED
3.0
0x6D
-61.0
0x98
-39.5
0xC3
-18.0
0xEE
3.5
0x6E
-60.5
0x99
-39.0
0xC4
-17.5
0xEF
4.0
0x6F
-60.0
0x9A
-38.5
0xC5
-17.0
0xF0
4.5
0x70
-59.5
0x9B
-38.0
0xC6
-16.5
0xF1
5.0
0x71
-59.0
0x9C
-37.5
0xC7
-16.0
0xF2
5.5
0x72
-58.5
0x9D
-37.0
0xC8
-15.5
0xF3
6.0
0x73
-58.0
0x9E
-36.5
0xC9
-15.0
0xF4
6.5
0x74
-57.5
0x9F
-36.0
0xCA
-14.5
0xF5
7.0
0x75
-57.0
0xA0
-35.5
0xCB
-14.0
0xF6
7.5
0x76
-56.5
0xA1
-35.0
0xCC
-13.5
0xF7
8.0
0x77
-56.0
0xA2
-34.5
0xCD
-13.0
0xF8
8.5
0x78
-55.5
0xA3
-34.0
0xCE
-12.5
0xF9
9.0
0x79
-55.0
0xA4
-33.5
0xCF
-12.0
0xFA
9.5
0x7A
-54.5
0xA5
-33.0
0xD0
-11.5
0xFB
10.0
0x7B
-54.0
0xA6
-32.5
0xD1
-11.0
0xFC
10.5
0x7C
-53.5
0xA7
-32.0
0xD2
-10.5
0xFD
11.0
0x7D
-53.0
0xA8
-31.5
0xD3
-10.0
0xFE
11.5
0x7E
-52.5
0xA9
-31.0
0xD4
-9.5
0xFF
12.0
0x7F
-52.0
0xAA
-30.5
0xD5
-9.0
0x80
-51.5
0xAB
-30.0
0xD6
-8.5
0x81
-51.0
0xAC
-29.5
0xD7
-8.0
High Pass Filter2 Cut-off Control Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0x7e 0x7f
-
-
-
-
-
HPF2CUT
-
-
-
-
-
0
0
0
This register is to set the cut-off frequency of the high-pass filter for the noise reduction during recording.
Don’t change the setting of this register under the filter processing concerned(HPF2EN="1" and RELPLAY=0x1,0x3 or 0x7).
HPF2CUT[2:0]
These set the cut-off frequency of the noise reduction high-pass filter during recording and the numerical value of below list
expresses 1.5dB damping and 3dB damping frequency in each second order filter(HPF2OD="1") and one order filter
(HPF2OD="0").
HPF2CUT
[2:0]
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
fs=8kHz,
16kHz,
32kHz
80
100
130
160
200
260
320
400
Cut-off Frequency(Hz)
fs=11.025kHz,
22.05kHz,
44.1kHz
110
138
179
221
276
358
441
551
fs=12kHz,
24kHz,
48kHz
120
150
195
240
300
390
480
600
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TSZ22111 • 15 • 001
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TSZ02201-0V2V0E500110-1-2
26.Oct.2015 Rev.002