SC9102D datasheet(4/16 Pages) SILAN

4 / 16 page

Silan

Semiconductors

SC9102C/D

HANGZHOU SILAN MICROELECTRONICS CO.,LTD.

Rev: 2.0

2001-11-02

(continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

M/B ratio=40:60

Pre-digit Pause

Pulse rate=10pps

tPDP

M/B ratio=33:66

M/B ratio=40:60

Pre-digit Pause

Pulse rate=20pps

tPDP

M/B ratio =33:66

16.5

Pulse rate=10pps

800

Inter-digit Pause

tIDP

Pulse rate=20pps

600

Tone Mode

DC Level

Vdc

VDD=2.0V~5.5V

0.45VDD

0.55VDD

0.7VDD

Sink Current

Itl

Vdtmf=0.5V

0.15

AC level

Vdtmf

Row group

RL=10K

Ω

120

150

180

mVrms

Tone

Output Pin

Load Resistor

Dist.<=-23dB

Ω

Pre-emphasis

twist

VDD=2.0~5.5 V

DTMF Signal

Distortion(note 2)

Dist.

RL=10K

Ω

-30

-23

Minimum tone duration Time

tTD

Auto redial

100

Minimum Intertone Pause Time

tTTP

Auto redial

106

Note: 1. Vn: Input voltage of any keyboard scanning pin (Row group, Column group)

Distortion (dB) = 20log

{[V12+V22+V32+…Vn2)1/2]/[(VL2+VH2)1/2]}

VL,VH: Row group and Column group signal

V2…

Vn: Harmonic signal (BW = 300Hz~3500Hz

ACTUAL FREQUENCY OUTPUT (fosc=3.579545MHz)

Keyboard Scanning Pin

Standard(Hz)

Output

Deviation(%)

697

699

+0.28

770

766

-0.52

852

848

-0.47

941

948

+0.74

1209

1216

+0.57

1336

1332

-0.30

1477

1472

-0.34

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