參數(shù)資料
型號: 935260608118
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝: PLASTIC, SOT-136, SO-28
文件頁數(shù): 3/56頁
文件大小: 360K
代理商: 935260608118
2000 May 19
11
Philips Semiconductors
Product specication
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
handbook, full pagewidth
FCA131
Iline
Rline
VCC
GND
LN
VDD
CVDD
220
F
UBA205xx
RCC
ICC
IDD
ILN
peripherals
SENSE
SWITCH
VDD regulator
ISUP
Rexch
Vexch
CVCC
100
F
Fig.10 VDD regulator configuration.
SET IMPEDANCE
In the audio frequency range, the dynamic impedance is
mainly determined by resistor RCC. The equivalent
impedance of the circuit is illustrated in Fig.11.
handbook, halfpage
LN
GND
SLPE
RSLPE
20
CREG
4.7
F
REG
VCC
RCC
619
CVCC
100
F
RP
Vref
LEQ
FCA132
Fig.11 Equivalent impedance between
LN and GND.
LEQ =CREG × RSLPE × Rp.
Internal resistance RP = 17.5 k.
相關(guān)PDF資料
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935260687112 TELEPHONE MULTIFUNCTION CKT, PDSO28
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935260607112 TELEPHONE MULTIFUNCTION CKT, PDSO28
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