HT95R34 datasheet(6/59 Pages) HOLTEK

6 / 59 page

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

DTMF Generator (Operating Temperature:

-20°Cto85°C

fDTMFO

Single Tone Output

Frequency

2.5V

Microcontroller normal mode;

DTMF generator single tone

test mode

690

704

762

778

843

861

932

950

1197

1221

1323

1349

1462

1492

1617

1649

VTAC

DTMF Output AC Level

¾ Row group, RL=5kW

120

155

180

mVrms

DTMF Output Load

¾ T.H.D. £-23dB

¾¾

ACR

Column Pre-emphasis

¾ Row group= 0dB

THD

Tone Signal Distortion

¾ RL=5kW¾

-30

-23

DTMF Receiver

- Signal (fSYS= 3.5795MHz)

Input Signal Level

¾-36

¾-6

dBm

¾-29

Twisted Accept Limit

(Positive)

¾¾

Twisted Accept Limit

(Negative)

¾¾

Dial Tone Tolerance

¾¾

Noise Tolerance

¾¾

-12

Third Tone Tolerance

¾¾

-16

Frequency Deviation

Acceptance

¾¾

±1.5

Frequency Deviation

Rejection

¾±3.5

¾¾

tPU

Power-up Time

¾¾

HT95R34

Rev. 1.10

February 18, 2009

HT95R34 数据表(PDF) 6 Page - Holtek Semiconductor Inc

HT95R34 数据表(HTML) 6 Page - Holtek Semiconductor Inc

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