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參數資料
| 型號： | PCD3310AT |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Pulse and DTMF diallers with redial |
| 中文描述： | TELEPHONE DIALER CKT, PDSO28 |
| 文件頁數： | 7/28頁 |
| 文件大小： | 145K |
| 代理商： | PCD3310AT |
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1996 Nov 21
7
Philips Semiconductors
Product specification
Pulse and DTMF diallers with redial
PCD3310; PCD3310A
Fig.2 Pin configuration (DIP20 package).
handbook, halfpage
OSCI
PD/DTMF
TONE
VSS
FLD
ROW 5
ROW 4
ROW 3
ROW 2
ROW 1
OSCO
VDD
CE
M1
CF/DMODE/FS
COL 4
DP/FLO
COL 3
COL 2
COL 1
1
2
3
4
5
6
7
8
9
10
11
12
20
19
18
17
16
15
14
13
PCD3310P
PCD3310AP
MGE489
Fig.3 Pin configuration (SO28 package).
handbook, halfpage
OSCI
PD/DTMF
TONE
n.c.
VSS
n.c.
n.c.
FLD
ROW 5
ROW 4
n.c.
ROW 3
ROW 2
ROW 1
OSCO
VDD
CE
n.c.
M1
M2
M1
DP/FLO
CF/DMODE/FS
COL 4
n.c.
COL 3
COL 2
COL 1
1
2
3
4
5
6
7
8
9
10
11
12
13
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
PCD3310T
PCD3310AT
MGE488
7
FUNCTIONAL DESCRIPTION
References to ‘the device’ apply to both the PCD3310 and
the PCD3310A.
7.1
Power supply (V
DD
and V
SS
)
The positive supply of the device (V
DD
) must meet the
voltage requirements as indicated in Chapter 11.
To avoid undefined states of the device at power-on, an
internal reset circuit clears the control logic and counters.
If V
DD
drops below the minimum standby supply voltage of
1.8 V the power-on reset circuit inhibits redialling after
hook-off. The power-on reset signal has the highest
priority; it blocks and resets the device without delay
regardless of the state of chip enable input (CE).
7.2
Clock oscillator (OSCI and OSCO)
The timebase for the device for both pulse and DTMF
dialling is a crystal controlled on-chip oscillator which is
completed by connecting a 3.58 MHz crystal or ceramic
resonator between the OSCI and OSCO pins.
Recommended resonator type:
3.58 MHz PXE - Murata; CSA 3.58MG310VA.
7.3
Chip enable (CE)
The CE input enables the device and is used to initialize
the device. When CE is LOW it provides the static standby
condition. In this state the clock oscillator is disabled, all
registers and logic are reset with the exception of the redial
registers, Read Address Counter (RAC), Write Address
Counter (WAC) and Temporary Write Address Counter
(TWAC). The RAC points to the first digit of the last
number dialled, the WAC and TWAC point to the last
entered digits in the main and temporary registers
(see Fig.6). The keyboard input is inhibited, but data
previously entered is saved in the redial registers provided
V
DD
is higher than V
stb
. The current drawn is I
stb
(standby
current) and serves to retain data in the redial registers
during hook-on.
When CE is HIGH it activates the clock oscillator and the
device changes from static standby condition to the
conversation mode. The current consumption is I
DD(conv)
until the first digit is entered from the keyboard. Then a
dialling or redialling operation starts. The operating current
is I
DD(pulse)
if in the pulse dialling mode, or I
DD(DTMF)
if the
DTMF dialling mode is selected.
相關PDF資料 |
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|---|---|
| PCD3310P | Pulse and DTMF diallers with redial |
| PCD3310T | Pulse and DTMF diallers with redial |
| PCD3311 | DTMF/modem/musical-tone generators |
| PCD3311C | DTMF/modem/musical-tone generators |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCD3310ATD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| PCD3310ATD-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 |
| PCD3310FAMILY | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| PCD3310HT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Telephone Dialer |
| PCD3310P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pulse and DTMF diallers with redial |
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