ML7033 Datasheet, PDF (35/51 Pages) OKI electronic componets – Dual-Channel Line Card CODEC

1Semiconductor
FEDL7033-02
ML7033
CR7-B0, CR8-B7 to B0 … CH1 Tone Generator 2 (TG2) Frequency Select
These bits define the output frequency from TG2 on CH1. The frequency is between 300
and 3400Hz at 10Hz intervals. The values written to these bits determine the frequency as
shown in the following equation. Refer to Table 11.
Binary data for CR7-B0, CR8-B7 to B0
= (Output Frequency [Hz])/10
Below is an example of how these bits are programmed when the intended frequency is
1500Hz;
Ex) (Output Frequency [Hz])/10 = 1500/10 = 150d = 10010110b
Bits to set in CR7-B0, CR8-B7 to B0 = (0,1,0,0,1,0,1,1,0)
Note that the operations are not guaranteed when these bits define a frequency out of a band
between 300 and 3400 Hz.
Table 11 Tone Generator Frequency Setting
Frequency
(Hz)
decimal
hex
CR7
B0
B7
B6
B5
CR8
B4 B3
B2
B1
B0
300
30
01Eh 0
0
0
0
1
1
1
1
0
310
31
01Fh 0
0
0
0
1
1
1
1
1
320
32
020h 0
0
0
1
0
0
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
400
40
028h 0
0
0
1
0
1
0
0
0
410
41
029h 0
0
0
1
0
1
0
0
1
:
:
:
:
:
:
:
:
:
:
:
:
1000
100 064h 0
0
1
1
0
0
1
0
0
1010
101 065h 0
0
1
1
0
0
1
0
1
:
:
:
:
:
:
:
:
:
:
:
:
2000
200 0C8h 0
1
1
0
0
1
0
0
0
:
:
:
:
:
:
:
:
:
:
:
:
3000
300 12Ch 1
0
0
1
0
1
1
0
0
:
:
:
:
:
:
:
:
:
:
:
:
3390
339 153h 1
0
1
0
1
0
0
1
1
3400
340 154h 1
0
1
0
1
0
1
0
0
35/51