AK2347B Datasheet, PDF (25/34 Pages) Asahi Kasei Microsystems – Two-way Radio Audio & Sub-Audio Processor

ASAHI KASEI
[AK2347B]
2.7) Sub-Audio LPF frequency
Address
Data
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
−
−
SA5 SA4 SA3 SA2 SA1 SA0
When power-down
−
−
1
1
0
0
0
1
SA5
SA4
SA3
SA2
SA1
SA0
Divide
*1)
MCKSL=0(3.579545M)
Cut-off
Frequency
Target
CTCSS
MCKSL=1(3.6864MHz)
Cut-off
Frequency
Target
CTCSS
(Hz)
(Hz)
(Hz)
(Hz)
0
0
0
0
0
0
640 59.4
-
61.1
-
0
0
0
0
0
1
630 60.3
-
62.1
-
0
0
0
0
1
0
620 61.3
-
63.1
-
0
0
0
0
1
1
610 62.3
-
64.1
-
0
0
0
1
0
0
600 63.3
-
65.2
-
0
0
0
1
0
1
590 64.4
-
66.3
-
0
0
0
1
1
0
580 65.5
-
67.5
-
0
0
0
1
1
1
570 66.7
-
68.6
-
0
0
1
0
0
0
560 67.8
-
69.9
-
0
0
1
0
0
1
550 69.1
-
71.1
-
0
0
1
0
1
0
540 70.3
-
72.5
67.0
0
0
1
0
1
1
530 71.7
67.0
73.8
-
0
0
1
1
0
0
520 73.1
-
75.2
69.3
0
0
1
1
0
1
510 74.5
69.3
76.7
71.9
0
0
1
1
1
0
500 76.0
-
78.3
-
0
0
1
1
1
1
490 77.6
71.9
79.8
74.4
0
1
0
0
0
0
480 79.2
-
81.5
-
0
1
0
0
0
1
470 80.6
74.4
83.3
77.0
0
1
0
0
1
0
460 82.6
77.0
85.1
79.7
0
1
0
0
1
1
450 84.4
-
87.0
-
0
1
0
1
0
0
440 86.3
79.7
89.0
82.5
0
1
0
1
0
1
430 88.4
82.5
91.0
85.4
0
1
0
1
1
0
420 90.4
-
93.2
-
0
1
0
1
1
1
410 92.7
85.4
95.5
88.5
0
1
1
0
0
0
400 95.0
88.5
97.8
91.5
0
1
1
0
0
1
390 97.4
91.5 100.3
-
0
1
1
0
1
0
380 100.0
-
103.0 94.8
0
1
1
0
1
1
370 102.7 94.8 105.8 97.4
0
1
1
1
0
0
360 105.6 97.4 108.7 100.0
0
1
1
1
0
1
350 108.6 100.0 111.8 103.5
0
1
1
1
1
0
340 111.8 103.5 115.1 107.2
0
1
1
1
1
1
330 115.1 107.2 118.6 110.9
MS1419-E-00
- 25 -
2012/05