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參數(shù)資料
| 型號(hào)： | MT88EBNR |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | 4-Wire Calling Number Identification Circuit 2 (4-Wire CNIC2) |
| 中文描述： | TELEPHONE CALLING NO IDENT CKT, PDSO20 |
| 封裝： | 5.30 MM, MO-150AE, SSOP-20 |
| 文件頁(yè)數(shù)： | 27/30頁(yè) |
| 文件大?。?/td> | 523K |
| 代理商： | MT88EBNR |
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MT88E45
Data Sheet
27
Zarlink Semiconductor Inc.
Figure 18 - Application Timing for UK’s CCA Caller Display Service (CDS), e.g., CLIP
Notes:
1) From TW/P&E/312. Start time: The CPE should enter the signalling state by applying the DC and AC terminations within this time
after the end of the ring burst.
2) End time: The CPE should leave the signalling state by removing the DC and AC terminations within this time after the end of Data,
indicated by CD returning to high. The MT88E45B should also be taken out of FSK mode at this time to prevent the FSK
demodulator from reacting to other in-band signals such as speech, and DTMF tones.
3) PWDN and FSKen are internal signals decoded from CB0/1/2.
4) This signal represents the mode of the DR/STD pin.
Ch. seizure
Mark
Data
..101010..
Data
Note 1
250-400ms
t
CP
t
CA
A
B
C
D
E
F
A/B Wires
PWDN
Note 3
TE DC load
TE AC load
FSKen
Note 3
CD
DR
DCLK
DATA
OSC2
Note 2
50-150ms
A = 200-450 ms
B
≥
500 ms
C = 80-262 ms
D = 45-262 ms
E
≤
2.5s (typ. 500 ms)
F >200 ms
Note: Parameter F
from "CCA Exceptions
Document Issue 3"
t
PU
t
PD
Note 4
Ring Burst
First Complete
Ring Cycle
Line Reversal (Optionally sent)
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