MSM7570-01 Ver la hoja de datos (PDF) - Oki Electric Industry
Número de pieza
componentes Descripción
Lista de partido
MSM7570-01 Datasheet PDF : 26 Pages
| |||
¡ Semiconductor
MSM7570-01
(5) CR4 (Tone genereator operating mode and frequency select)
CR4
Initial Value
B7
DTMF/OTHERS
SEL
0
B6
TONE
SEND
0
B5
SAO/
VFRO
0
B4
TONE4
0
B3
TONE3
0
B2
TONE2
0
B1
TONE1
0
B0
TONE0
0
B7 ... DTMF or other tones select; 0/Others, 1/DTMF
B6 ... Tone transmit enable (Transmit side); 0/Voice signal (transmit), 1/Tone transmit
B5 ... Tone output pin select (Receive side); 0/VFRO, 1/SAO+ and SAO–
B4, B3, B2, B1, B0 ... Tone frequency setting, referred to Table-5-1 and 5-2.
(a) B7 = 1 (DTMF tone)
Table-5-1
B4 B3 B2 B1 B0
*0000
*0001
*0010
*0011
*0100
*0101
*0110
*0111
Frequency
697 Hz + 1209 Hz
697 Hz + 1336 Hz
697 Hz + 1477 Hz
697 Hz + 1633 Hz
770 Hz + 1209 Hz
770 Hz + 1336 Hz
770 Hz + 1477 Hz
770 Hz + 1633 Hz
B4 B3 B2 B1 B0
*1000
*1001
*1010
*1011
*1100
*1101
*1110
*1111
Frequency
852 Hz + 1209 Hz
852 Hz + 1336 Hz
852 Hz + 1477 Hz
852 Hz + 1633 Hz
941 Hz + 1209 Hz
941 Hz + 1336 Hz
941 Hz + 1477 Hz
941 Hz + 1633 Hz
(b) B7 = 0 (Other tones)
Table-5-2
*Unrelated
B4 B3 B2 B1 B0
Frequency
B4 B3 B2 B1 B0
0 0 0 0 0 1k/1333 Hz, 16 Hz wamb. 1 0 0 0 0
0 0 0 0 1 800/667 Hz, 16 Hz wamb. 1 0 0 0 1
0 0 0 1 0 800/1k Hz,16 Hz wamb. 1 0 0 1 0
0 0 0 1 1 500/667 Hz,16 Hz wamb. 1 0 0 1 1
0 0 1 0 0 500/400 Hz,16 Hz wamb. 1 0 1 0 0
0 0 1 0 1 800/1k Hz, 8 Hz wamb. 1 0 1 0 1
0 0 1 1 0 500/400 Hz, 8 Hz wamb. 1 0 1 1 0
00111
400 Hz,16 Hz wamb.
10111
01000
400 Hz,20 Hz wamb.
11000
01001
400 Hz Single tone
11001
01010
425 Hz Single tone
11010
01011
440 Hz Single tone
11011
01100
450 Hz Single tone
11100
01101
800 Hz Single tone
11101
0 1 1 1 0 1000 Hz Single tone 1 1 1 1 0
0 1 1 1 1 1300 Hz Single tone 1 1 1 1 1
Frequency
2000 Hz Single tone
2042 Hz Single tone
2514 Hz Single tone
500 Hz Single tone
667 Hz Single tone
1333 Hz Single tone
2100 Hz Single tone
—
—
—
—
—
—
—
—
—
22/26
Share Link: 