參數(shù)資料
型號(hào)： PCD3332-2
廠商： NXP Semiconductors N.V.
英文描述： Multistandard pulse/tone repertory diallers/ringers
中文描述： 多標(biāo)準(zhǔn)脈沖/音頻撥號(hào)器劇目/鈴聲
文件頁數(shù)： 10/32頁
文件大?。?/td> 154K
代理商： PCD3332-2
1997 Jan 13
10
Philips Semiconductors
Product specification
Multistandard pulse/tone repertory
diallers/ringers
PCD3332-2; PCD3332-3;
PCD3332-S
5.1.13
R
INGER VOLUME SETTINGS
Fig.4 FSM for volume control (PCD3332-2).
handbook, halfpage
DEFAULT
VOLUME
HIGH
VOLUME
LOW
VOLUME
VOL
+
/#
VOL
+
/#
VOL
+
/#
VOL
+
/#
VOL
/
*
VOL
/
*
VOL
/
*
VOL
/
*
LOWEST
VOLUME
MGC616
Fig.5 FSM for volume control (PCD3332-3/S).
handbook, halfpage
DEFAULT
VOLUME
HIGH
VOLUME
LOW
VOLUME
VOL
+
VOL
+
VOL
+
VOL
+
VOL
VOL
VOL
VOL
LOWEST
VOLUME
MGC615
Table 5
State assignment
5.1.14
D
IAL
M
ODE
O
UTPUT
/K
EY
-T
ONE
E
NABLE
(DMO/KTE)
In the PULSE dialling mode the DMO/KTE output is
activated (HIGH), at dialling the Make/Brake pulse dial
sequences. Figures 11 and 12 illustrate the signal timing
relationship.
In the programming mode, the DMO/KTE output is
activated at the same time the key beeps are generated at
output TONE and may be used to enable the key tone to
the earpiece amplifier.
5.1.15
K
EYBOARD INPUTS
/
OUTPUTS
A single contact keyboard with a maximum of 6 columns
and 5 rows can be connected to the PCD3332-2.
The keyboard scanning is started if a key depression is
detected. The rows are scanned while the columns are
used as sense inputs.
To overcome key bouncing, a debounce on/off time of
approximately 14 to 20 ms is implemented.
Only one single key depression is validated and accepted
at any one time. Once a key is accepted the keyboard
scanning is continued until no further keys are depressed.
This means that if a key is accepted but still depressed
while a second key is entered, the second key depression
is ignored. Also, if two or more keys are depressed within
the debounce time while no key is yet accepted, all keys
are ignored.
Keyboard detection is also performed in the ringer mode to
enable the ringer volume setting and ringer melody
selection.
In the on-hook mode or power-down mode of the
PCD3332-2 and PCD3332-S, the keyboard I/Os are set to
HIGH except ROW 5 which is set to LOW.
STATE
VOL2
VOL1
Default volume setting
High volume setting
Low volume setting
Lowest volume setting
HIGH
HIGH
LOW
LOW
HIGH
LOW
HIGH
LOW
相關(guān)PDF資料
PDF描述
PCD3332-2P Multistandard pulse/tone repertory diallers/ringers
PCD3332-3 Multistandard pulse/tone repertory diallers/ringers
PCD3332-3P Multistandard pulse/tone repertory diallers/ringers
PCD3332-3T Multistandard pulse/tone repertory diallers/ringers
PCD3332-S Multistandard pulse/tone repertory diallers/ringers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCD3332-2P 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard pulse/tone repertory diallers/ringers
PCD3332-2T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard pulse/tone repertory diallers/ringers
PCD3332-2TD-T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer
PCD3332-3 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multistandard pulse/tone repertory diallers/ringers
PCD3332-3P 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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