參數(shù)資料
型號(hào): 935260607112
廠商: NXP SEMICONDUCTORS
元件分類: 無(wú)繩電話/電話
英文描述: TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝: PLASTIC, SOT-136, SO-28
文件頁(yè)數(shù): 32/56頁(yè)
文件大小: 360K
代理商: 935260607112
2000 May 19
38
Philips Semiconductors
Product specication
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
TIMING CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Timing
KEYBOARD INPUTS/OUTPUTS (PINS C1 TO C4 AND R1 TO R4)
tdd
keyboard depress
debounce time
20
ms
trd
keyboard release
debounce time
20
ms
KEY TONE OUTPUT (PIN KT)
tkt
keytone time
30
ms
fkt
keytone frequency
597
Hz
DIAL PULSE/FLASH OUTPUT (PIN DP/FL)
tidp
interdigit pause time
dialling rate 10 pps
800
ms
dialling rate 20 pps
500
ms
tfho
ash holdover time
40
ms
tmho
mute holdover time
15
ms
tap
access pause time
resistor APT is not
present
2.0
s
resistor APT is present
3.6
s
tifp
interash pause time
800
ms
tpdp
pre-digit pause
40
ms
tm
make time
dialling rate 10 pps
resistor MBS is not
present
40
ms
resistor MBS is
present
33
ms
dialling rate 20 pps
resistor MBS is not
present
20
ms
resistor MBS is
present
16
ms
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