pcd3310 NXP Semiconductors, pcd3310 Datasheet - Page 19

• Manufacturer Part Number: pcd3310
• Description: Pulse And Dtmf Diallers With Redial
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1996 Nov 21
handbook, full pagewidth
handbook, full pagewidth
Pulse and DTMF diallers with redial
The dashed line signifies floating.
Fig.13 Timing diagram showing REDIAL where PABX access digits are the first keyboard entries in DTMF dialling
The dashed line signifies floating.
KEYBOARD
mode.
DIAL TONE
KEYBOARD
ENTRY
DTMF
ENTRY
PD/DTMF
DP/FLO
CE
M1
DTMF
M2
M1
Fig.14 .Timing diagram for mixed mode (PD/DTMF open-circuit).
t e
t e
0
t h
2
t id
t e
0
t e
pulse dialling
19
t e
DTMF dialling
t e
t e
t h
R
t e
PCD3310; PCD3310A
2
telephone number
t e
Product specification
MGE502
MGE500