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Número de pieza | BU8307CF | |
Descripción | Pulse / tone dialer for telephone set | |
Fabricantes | ROHM Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de BU8307CF (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
No Preview Available ! Communication ICs
Pulse / tone dialer for telephone set
BU8307CS / BU8307CF
The BU8307CS and BU8307CF are large scale integrated circuits with a pulse dialer and tone dialer integrated on a
single chip. These products are capable of dialing in either pulse or tone mode, and can redial up to 32 digits.
FApplications
Telephones and cordless telephones
FFeatures
1) The chip includes both a pulse and tone dialer, mak-
ing it possible to dial in either pulse or tone mode.
2) A wide operating voltage range enables direct pow-
ering by line current. The voltage range guaranteed
for both pulse and tone dialing is 2.5V to 5.5V.
3) A built-in memory enables redialing of up to 32 digits.
Note: In tone mode, the memory itself uses one digit,
so please be aware that a maximum of 31 digits can
be redialed.
4) The chip conforms to the standards of Japan, Ameri-
ca, Canada, England, Korea, Taiwan, and Australia.
5) The VDD power supply voltage is independent of the
DTMF output level.
6) There is little deviation in the frequency dividing for
the DTMF output frequency. The maximum on the +
side is + 0.15%, and on the - side is – 0.08%.
FBlock diagram
163
1 page Communication ICs
FElectrical characteristic curves
BU8307CS / BU8307CF
167
5 Page Communication ICs
BU8307CS / BU8307CF
173
11 Page |
Páginas | Total 17 Páginas | |
PDF Descargar | [ Datasheet BU8307CF.PDF ] |
Número de pieza | Descripción | Fabricantes |
BU8307CF | Pulse / tone dialer for telephone set | ROHM Semiconductor |
BU8307CS | Pulse / tone dialer for telephone set | ROHM Semiconductor |
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