em91403 ELAN Microelectronics Corp, em91403 Datasheet - Page 17
em91403
Manufacturer Part Number
em91403
Description
Tone/pulse Switchable Dialer With Lcd Interface And Dual-tone Melody Generator Tone/pulse Switchable Dialer With Lcd Interface And Dual-tone Melody Generator
Manufacturer
ELAN Microelectronics Corp
Datasheet
1.EM91403.pdf
(24 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
em91403AP
Manufacturer:
EMC
Quantity:
6 245
Company:
Part Number:
em91403BP
Manufacturer:
FAIRCHILD
Quantity:
2 170
Company:
Part Number:
em91403DK
Manufacturer:
TI
Quantity:
6 218
<Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time
@ : It can be triggled by extension telephone set for hold function release
* This specification are subject to be changed without notice.
OSC.
HKS
KEY
HFI
KT
or
KEY IN
MELODY
XMUTE
KEY IN
HKS
SDO
HDO
KT
HKS
HFO
SDO
PO
HF
HF
Tdly
5
HD
Figure 8. SDO operating timing
Figure 9. HF and HD operating timing
HF
Figure 10. Off-Hook delay time
Tdb
HD
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
0
"0" digit dialing time
sT
0
sT b0
1 0
HD
L
b1 b2 b3 b4 b5 spT spT
1
Tbit
2
0
AND DUAL-TONE MELODY GENERATOR
0
HD
0 0
M
HF
0
1
HD
Hi-impedance
280
HD @
Hi-impedance
ms
EM91403 SERIES
Hi-impedance
Thdrdb
10.1.1997
17