參數(shù)資料
型號(hào)： AS2534ET
廠商： AUSTRIAMICROSYSTEMS AG
元件分類(lèi)： 無(wú)繩電話/電話
英文描述： Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping
中文描述： TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝： SOIC-28
文件頁(yè)數(shù)： 22/25頁(yè)
文件大?。?/td> 270K
代理商： AS2534ET
22
Rev. 7
July 1998
Data Sheet
AS2533...6
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
FD
Flash Duration 1
R1
key
100
102
ms
Flash Duration 2
R2
key
270
300
ms
Flash Duration 3
R3
key (AS2533/4B/5/6)
600
650
ms
R3 key (AS2534E only)
312
375
450
ms
t
PFP
t
AP
t
RP
Post Flash Pause
274
ms
Access Pause
Note 8
2.0
2.05
2.12
sec
Repeat Break Time
1.6
sec
Tone Ringer
V
MO
t
MD
F1
Melody Output
PDM
Melody Delay
10
ms
Frequency 1
800
Hz
F2
Frequency 2
1067
Hz
F3
Frequency 3
1333
Hz
t
DT
t
TO
f
MIN
f
MAX
Detection Time
Initial
1/f + 73ms
s
Detection Time-out
note 4
ms
Min. Detection Frequency
13
Hz
Max. Detection Frequency
70
Hz
Pacifier Tone
Programme Mode Only
f
PT
V
RT
t
RTD-E
t
RTD-A
t
RTD-R
Frequency
P/M mode, key entry
1477
Hz
Level (RO)
Key entry
60
mV
Duration, Key Entry
Valid key entry, prog.
40
ms
Duration, Acknowledge
Terminate with P/M key
140
ms
Duration, Reject
Invalid key entry, note 7
4x40
ms
LED Output
t
LED-ON
t
LED-OFF
"on-time"
P/M state
80
ms
Interval
P/M state
1
sec
Comfort Tone (DTMF)
V
CT
Note 1: The values are valid during automatic dialling and are minimum values during manual dialling, i.e. the tones will
continue as long as the key is depressed.
Note 2: The rise time is the time from 10% of final value till the tone amplitude has reached 90 % of its final value.
Note 3: Relative to high group.
Note 4: The FCI circuit is reset by POR and HS/DPN pulled high (off-hook). After a reset the FCI circuit is in a standby state. A
positive edge on FCI will start a 73 ms timer and the frequency discrimination is initiated. Whenever a period of the ring
signal is missing, the timer is reset. When a valid ring signal is present for 73 ms, the melody generator is started and is
directly controlled by the ring signal. This condition will remain until a new reset.
Note 5: This does not include the frequency deviation of the ceramic resonator.
Note 6: During temporary MF mode.
Note 7: An invalid key entry in programme mode will invoke a tone sequence with 4 tone bursts of 40 ms and pauses between
bursts of 28 ms and abort the programme mode.
Note 8: Pauses inserted within the first 5 entries of a digit string will be automatically terminated after 2 seconds. Pauses
inserted after location 5 can only be terminated manually by pressing the PS or LNR key.
Level (RO)
Relative to LS
-30
dBr
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