1996 Nov 21

17

Philips Semiconductors

Product specification

Pulse and DTMF diallers with redial

PCD3310; PCD3310A

12 TIMING CHARACTERISTICS

When any key is activated a square wave (330 Hz) is generated and appears at the CF output to serve as an acoustic

feed-back for the user.

SYMBOL

PARAMETER

MIN.

TYP.

MAX.

UNIT

DTMF dialling

transmission and pause times (manual dialling)

68

−−

ms

transmission and pause times (redialling)

68

70

72

ms

Pulse dialling (PCD3310)

dialling pulse frequency

9.8

10

10.4

Hz

inter-digit pause

828

840

844

ms

break time

66

67

68

ms

make time

32

33

34

ms

Pulse dialling (PCD3310A)

dialling pulse frequency

9.8

10

10.4

Hz

inter-digit pause

828

840

844

ms

break time

59

60

61

ms

make time

39

40

41

ms

General

flash pulse duration

98

100

102

ms

flash hold-over time

31

33

34

ms

hold-over time (muting on M1)

78

80

81

ms

clock start-up time

−

4

−

ms

debounce time

−

12

−

ms

reset delay time

−

160

−

ms