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參數(shù)資料
| 型號： | MT8843AS |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | CMOS Calling Number Identification Circuit 2 Preliminary Information |
| 中文描述： | 來電號碼識別的CMOS電路2的初步信息 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大小： | 115K |
| 代理商： | MT8843AS |
Preliminary Information
MT8843
5-37
Figure 15 - Input and Output Timing for BT Caller Display Service (CDS), e.g., CLIP
Notes:
1) By choosing t
GA
=15ms, t
ABS
will be 15-25ms so that the current wetting pulse and AC load can be applied right after the StD falling
edge.
2) SIN227 specifies that the AC and DC loads should be removed between 50-150ms after the end of the FSK signal, indicated by CD
returning to high. The CNIC2 may also be powered down at this time.
3) FSKen should be set low when FSK is not expected to prevent the FSK demodulator from reacting to other in-band signals such as
speech, tone alert signal and DTMF tones.
4) TRIGout is the ring envelope during ringing.
5) The total recognition time is t
REC
= t
GP
+ t
DP
, where t
GP
is the tone present guard time and t
DP
is the tone present detect time (refer
to section “Dual Tone Detection Guard Time” on page 25 for details).
6) The total tone absent time is t
ABS
= t
GA
+ t
DA
, where t
GA
is the tone absent guard time and t
DA
is the tone absent detect time (refer
to section “Dual Tone Detection Guard Time” on page 25 for details).
V
TGt
is the comparator threshold (refer to Figure 4).
Line Reversal
Alerting Signal
Ch. seizure
Mark
Data Packet
Ring
..101010..
Data
t
DP
t
DA
t
GP
t
GA
V
TGt
t
REC
t
ABS
(Note 1)
20
±
5ms
t
CP
t
CA
A
B
C
D
E
F
G
Zss (Refer to SIN227)
< 0.5mA (optional)
<120
μ
A
Note 2
Note 4
Note 3
A/B Wires
TRIGout
PWDN
ESt
St/GT
StD
TE DC load
TE AC load
FSKen
CD
DR
DCLK
DATA
OSCout
A
≥
100ms
B = 88-110ms
C
≥
45ms (up to 5sec)
D = 80-262ms
E = 45-75ms
F
≤
2.5sec (typ. 500ms)
G > 200ms
Note: All values obtained
from SIN227 Issue 1
Note 5
Note 6
50-150ms
15±1ms
Current wetting pulse (see SIN227)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8843 | Calling Number Identification Circuit(主叫識別電路（提供各種主叫線信息傳遞設(shè)備的接口）) |
| MT8888C | Integrated DTMF Transceiver with Intel Micro Interface(雙音多頻信號（DTMF）收發(fā)器（帶Intel微接口）) |
| MT8889CC-1 | Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT8889CN-1 | Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT8889CS-1 | Integrated DTMFTransceiver with Adaptive Micro Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8860 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF DECODER |
| MT8860XC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF DECODER |
| MT8860XE | 制造商:Hitachi 功能描述:DTMF RECEIVER, 18 Pin, Plastic, DIP 制造商:Microsemi Corporation 功能描述:DTMF RECEIVER, 18 Pin, Plastic, DIP 制造商:Mitel Networks Corporation 功能描述:DTMF RECEIVER, 18 Pin, Plastic, DIP |
| MT8865 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF Filter |
| MT8865XC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:DTMF Filter |
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