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参数资料
| 型号： | M-991-01SM |
| 厂商： | CLARE INC |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | Call Progress Tone Generator |
| 中文描述： | CALL PROGRESS TONE GENERATOR, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 3/6页 |
| 文件大小： | 183K |
| 代理商： | M-991-01SM |
Data/Tone Selection
D
3
D
2
D
1
D
0
Frequency (Hz)
Use
12
0000
350
440
Dial Tone
0
1
400
off
Special
0010
440
off
Alert Tone
0011
440
480
Audible Ring
0100
440
620
Pre-empt
0101
480
off
Bell high tone
0110
480
620
Reorder(Bell low)
0111
350
off
Special
1000
620
off
Special
1001
941
1209
DTMF “
*”
Pin Function
Pin
Function
CE
Latches data and enables output (active
low input).
D0 - D3
Data input pins. (See Data/Tone Selection.)
D4-D5
Leave open.
MUTE
Output indicates that a signal is being generated at
OUTDRIVE.
OUTDRIVE
Linear buffered tone output.
V
DD
Most positive power supply input pin.
V
REF
Internally generated mid-power supply voltage
(output).
V
SS
Most negative power supply input pin.
X
IN
Crystal oscillator or digital clock input.
X
OUT
Crystal oscillator output.
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
be changed 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
REF 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)
Interruption Rate
12
Dial
350
440
Steady
Reorder
480
620
Repeat, tones on and off 250 ms ± 25 ms each.
Busy
480
620
Repeat, tones on and off 500 ms ± 50 ms each.
Audible Ring
440
480
Reat, tones on 2 ± 0.2 s, tones off 4 ± 0.4 s
Recall Dial
350
440
Three bursts tones on and off 100 ms ± 20 ms each followed by dial tone.
Special AR
440
480
Tones on 1 ± 0.2s, followed by single 440 Hz on for 0.2s on, and silence for 3 ±
0.3 s, repeat.
Intercept
440
620
Repeat alternating tones, each on for 230 ms ± 70 ms with total cycle of 500 ±
50 ms.
Call Waiting
440
Off
One burst 200 ± 100 ms
Busy Verification
440
Off
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
Executive Override
440
Off
One burst of tone for 3 ± 1 s before overriding station intrudes
Confirmation
350
440
Three bursts on and off 100 ms each or 100 ms on, 100 ms off, 300 ms on
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相关代理商/技术参数 |
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|---|---|
| M-991-01SMTR | 功能描述:固态继电器-PCB安装 5V Call Progress Tone Generator, 16xpin RoHS:否 制造商:Omron Electronics 控制电压范围: 负载电压额定值:40 V 负载电流额定值:120 mA 触点形式:1 Form A (SPST-NO) 输出设备:MOSFET 封装 / 箱体:USOP-4 安装风格:SMD/SMT |
| M-991-02SM | 制造商:CLARE 制造商全称:Clare, Inc. 功能描述:Call Progress Tone Generator |
| M-991-02SMTR | 制造商:CLARE 制造商全称:Clare, Inc. 功能描述:Call Progress Tone Generator |
| M9911 | 制造商:Tamura Corporation of America 功能描述: |
| M9913 | 制造商:Tamura Corporation of America 功能描述: |
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