em91401 ELAN Microelectronics Corp, em91401 Datasheet - Page 17

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em91401

Manufacturer Part Number
em91401
Description
Tone/pulse Switchable Dialer With Lcd Interface And Dual-tone Melody Generator
Manufacturer
ELAN Microelectronics Corp
Datasheet

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EM91401 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
Toff
RING
Ton
DRING
HKS
RMUTE
Figure 11. Timing of receiving an incoming call
* The external ring detection circuit must send a low signal at the total ring cycle (Ton and Toff)
RING
DRING
HKS
RMUTE
Figure 12. Timing of making an outgoing call
* This specification are subject to be changed without notice.
10.1.1997
17

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