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參數(shù)資料
| 型號： | M-991 |
| 廠商： | CLARE INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Call Progress Tone Generator |
| 中文描述： | CALL PROGRESS TONE GENERATOR, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 171K |
| 代理商： | M-991 |
Data/Tone Selection
D0
D1
D2 D3 Frequency (Hz)
1
0
0
350
0
1
400
1
0
440
1
1
440
0
0
440
0
1
480
1
0
480
1
1
350
0
0
620
0
1
941
Use
2
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
440
off
off
480
620
off
620
off
off
1209
Dial Tone
Special
Alert Tone
Audible Ring
Pre-empt
Bell high tone
Reorder(Bell low)
Special
Special
DTMF “
*
”
Pin Function
Pin
CE
Function
Latches data and enables output (active
low input).
Data input pins. (See Data/Tone Selection.)
Leave open.
Output indicates that a signal is being generated at
OUTDRIVE.
Linear buffered tone output.
Most positive power supply input pin.
Internally generated mid-power supply voltage
(output).
Most negative power supply input pin.
Crystal oscillator or digital clock input.
Crystal oscillator output.
D0 - D3
D4-D5
MUTE
OUTDRIVE
V
DD
V
REF
V
SS
X
IN
X
OUT
M-991
www.clare.com
3
Rev. 1
Call Progress Tone Generation
Call progress tones are audible tones sent from
switching systems to calling parties (or equipment) to
indicate the status of calls. Calling parties can identify
the success of a placed call by what is heard after dial-
ing. The M-991 series utilizes a highly linear tone gen-
erator that produces the unique frequencies (singly or
in pairs) that are common to call progress signals.
Duration and frequency selection are digitally con-
trolled (see the Data/Tone Selection table below for
data settings for a particular tone output). A typical
control sequence for the M-991 is: (1) set data lines to
desired frequency selection, (2) wait for data lines to
settle, (3) drive the chip enable (CE) low, (4) maintain
CE low for desired tone duration (Note: data lines may
bechanged after data hold time), and (4) return CE to
a logic high. (Commonly used call progress tones are
shown in the Data/Tone Selection table below.) In a
bus-oriented system, noise on the data lines may
propagate through the device and appear at the out-
put. To safeguard against this, use an external latch to
lock the data into the device. In addition, it is good
practice to bypass the V
pin to ground with a small
capacitor (0.01 mF) to reduce power supply noise. The
designer should be aware of device timing require-
ments and design accordingly. The data input pins
may be tied high (+5 VDC) or low (ground) as required,
but D4 and D5 must be left open. Beware of hardwiring
the CE pin for dedicated tone generation. This input is
edge triggered. An RC network like that shown in the
Power-on Reset Circuit on Page 4 should be used to
momentarily reset the device immediately following
power-up to ensure proper operation.
Standard Call Progress Tones
Tone Name
Frequency (Hz)
1
350
480
480
440
350
440
Interruption Rate
2
Dial
Reorder
Busy
Audible Ring
Recall Dial
Special AR
440
620
620
480
440
480
Steady
Repeat, tones on and off 250 ms ± 25 ms each.
Repeat, tones on and off 500 ms ± 50 ms each.
Reat, tones on 2 ± 0.2 s, tones off 4 ± 0.4 s
Three bursts tones on and off 100 ms ± 20 ms each followed by dial tone.
Tones on 1 ± 0.2s, followed by single 440 Hz on for 0.2s on, and silence for 3 ±
0.3 s, repeat.
Repeat alternating tones, each on for 230 ms ± 70 ms with total cycle of 500 ±
50 ms.
One burst 200 ± 100 ms
One burst of tone on 1.75 ± 0.25 s before attendant intrudes, followed by burst
of tone 0.65 ± 0.15 s on, 8 to 20 s apart for as long as the call lasts
One burst of tone for 3 ± 1 s before overriding station intrudes
Three bursts on and off 100 ms each or 100 ms on, 100 ms off, 300 ms on
Intercept
440
620
Call Waiting
Busy Verification
440
440
Off
Off
Executive Override
Confirmation
440
350
Off
440
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M-991-01SM | 功能描述:固態(tài)繼電器-PCB安裝 5V Call Progress Tone Generator, 16xpin RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
| M-991-01SMTR | 功能描述:固態(tài)繼電器-PCB安裝 5V Call Progress Tone Generator, 16xpin RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
| M-991-02SM | 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:Call Progress Tone Generator |
| M-991-02SMTR | 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:Call Progress Tone Generator |
| M9911 | 制造商:Tamura Corporation of America 功能描述: |
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