參數(shù)資料
型號： PCD3330-1
廠商： NXP Semiconductors N.V.
英文描述： Multistandard repertory dialler/ringer with EEPROM
中文描述： 多標準匯編撥號器/帶有EEPROM鈴聲
文件頁數(shù)： 21/32頁
文件大?。?/td> 152K
代理商： PCD3330-1
1997 Jan 15
21
Philips Semiconductors
Product specification
Multistandard repertory dialler/ringer with
EEPROM
PCD3330-1
5.7.1
R
INGER OUTPUT PIN SELECTION
The ringer signal is sent via the special Ringer Tone
Output (RTO) or via the TONE output depending on the
option selected.
When a loudspeaker is used as a transducer, it is better to
use the TONE output. One of the internal tone generators
directly supplies this output with V
RMS
= 181 mV.
The RTO output signal, used for PXE transducers, is a
block with a peak-to-peak output voltage of V
DD
V
SS
.
5.7.2
R
INGER INPUT FREQUENCY MEASUREMENT
The melody ringer becomes active for all incoming ringer
frequencies higher then the ringer detection LOW
frequency and lower then the ringer detection HIGH
frequency supplied to the CE/RT input of the PCD3330-1.
The ringer detection LOW and ringer detection HIGH
frequencies are selected such that it is possible to use this
PCD3330-1 for both single and double phase rectifier
applications. It is possible to select one out of four ringer
detection LOW and four ringer detection HIGH frequencies
options which are given below:
Ringer detection LOW 1: 16 Hz
Ringer detection LOW 2: 20 Hz
Ringer detection LOW 3: 32 Hz
Ringer detection LOW 4: 40 Hz
Ringer detection HIGH 1: 35 Hz
Ringer detection HIGH 2: 60 Hz
Ringer detection HIGH 3: 70 Hz
Ringer detection HIGH 4: 120 Hz.
5.7.3
R
INGER MELODIES SELECTION
The ringer melody generator can select out of four different
ringer melody options (stored in EEPROM), given in
Table 7.
Table 7
Ringer melody options
RINGER MELODY
FREQ. 1
(Hz)
FREQ. 2
(Hz)
FREQ. 3
(Hz)
Ringer melody A
Ringer melody B
Ringer melody C
Ringer melody D
738
800
1455
1995
826
1067
1621
2223
925
1333
1810
2510
5.7.4
R
INGER VOLUME CHANGE DURING CONVERSATION
AND RINGER MODE
The ringer volume can be controlled by the port pins
RVOL1 and RVOL2 and its value is stored in EEPROM.
The output volume can be changed:
Via the EEPROM programming procedure (see
Section 5.3.2)
During conversation mode, when the function keys
option is chosen, with a special key sequence
During active ringer by a simple key press.
In Conversation mode the procedure is as follows:
Put the set in conversation mode (supply necessary)
Depress PR (ringer program key)
Press one of the four acceptable volume keys (1 to 4);
see Table 8.
Table 8
Ringer volume control, conversation mode
The newly selected value is directly stored into EEPROM.
During active ringing the PR key is not used, the procedure
is as follows:
Activate the ringer (only then this volume correction is
possible)
Press one of the four acceptable volume keys (1 to 4);
see Table 9.
Table 9
Ringer volume control, active ringer mode
The newly selected value is directly stored into EEPROM.
KEY
RVOL1
RVOL2
1
2
3
4
0
1
0
1
0 (minimum output power)
0
1
1 (maximum output power)
KEY
RVOL1
RVOL2
1
2
3
4
0
1
0
1
0 (minimum output power)
0
1
1 (maximum output power)
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