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參數資料
| 型號： | PCD3330-1T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Multistandard repertory dialler/ringer with EEPROM |
| 中文描述： | TELEPHONE MULTIFUNCTION CKT, PDSO28 |
| 封裝： | PLASTIC, SOT-136, SO-28 |
| 文件頁數： | 16/32頁 |
| 文件大小： | 152K |
| 代理商： | PCD3330-1T |
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1997 Jan 15
16
Philips Semiconductors
Product specification
Multistandard repertory dialler/ringer with
EEPROM
PCD3330-1
5.5.2
P
ULSE DIALLING
(PD/DTMF = LOW)
The keyboard entry initiates a recall of a previously stored
number or is a simultaneous keying-in and pulsing-out
activity, with storing for possible later recall. If in the
recalled number or at keying-in the keys A,B,C or D
(options A to D keys selected) are used these digits are
not transmitted.
If at keying-in the keys
or # are used this results in a
switch over to DTMF dialling. Normally, keying in is faster
than pulsing-out (fed from the redial register). Pulse
sequences start with an inter-digit pause of 840 ms
duration, followed by a sequence of pulses corresponding
to the present digit in store. Each pulse starts with a mark
(line break) followed by space (line make).
The pulse period is 100 ms with a mark-to-space ratio of
3 : 2 or 2 : 1 (mark-to-space ratio selection). After
transmission of a digit, the next digit is processed, again
starting with an inter-digit pause. The pulses are available
at the DP/FL output and can be used to drive an external
switching transistor in pulse dialling mode.
The transmission IC is put in the dialling mode by means
of output MUTE.
Output MUTE has several programmable options, MUTE
can be configured as M1, M1, M2 and M2. In Fig.8 the
timing diagram of these output possibilities is given.
After completion of the number string the circuit changes
from dialling mode to conversation mode.
5.5.3
D
UAL TONE MULTI FREQUENCY
(DTMF)
DIALLING
(PD/DTMF = HIGH)
The PCD3330-1 converts keyboard inputs into data for the
on-chip DTMF generator. Tones are transmitted via output
TONE with six programmable minimum tone burst/pause
durations of 60/90, 70/70, 80/80, 100/100,
100/140 or 140/140 ms. The maximum tone burst duration
is equal to the key depression time. With redial and
repertory dialling tones are automatically fed at the
programmed rate. Again the MUTE output has several
programmable options namely, M1, M1, M2 and M2.
In Fig.9 the timing diagram of these output possibilities is
given.
Fig.8 Timing diagram in pulse mode, showing DP/FL and MUTE outputs.
handbook, full pagewidth
MGG578
tm
tb
tid
tm
tb
tid
CE
KEYBOARD
ENTRY
M1
M1
M2
M2
DP/FL
handset lifted
handset replaced
2
3
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| PCD3359A | 8-bit microcontroller with DTMF generator and 128 bytes EEPROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCD3331-1P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| PCD3331-1T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| PCD3332-1P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| PCD3332-1T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| PCD3332-2 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard pulse/tone repertory diallers/ringers |
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