參數(shù)資料
型號: TEA7092TQ
廠商: 意法半導(dǎo)體
英文描述: TELEPHONE ANALOG FRONT END
中文描述: 電話模擬前端
文件頁數(shù): 6/57頁
文件大?。?/td> 574K
代理商: TEA7092TQ
25
100k
100k
Ip
Internal Amp-op
Current Supply
26
C8
+
C14
+
±
1mA
V
REF
V
CC
29
I
REF
R2
30k
Internal
I
REF
300mV
R10
R11a + R11b
3
V
L
From Line
The sum of all the currentson Pin 26 (V
CC
) is equal to 1.3mA
(without ac receive signal)
A
Figure 1 :
V
REF
(Pin25) : Transmitand ReceiveReferenceVoltage (V
CC
/2)
V
CC
(Pin26) : Transmit andReceive Power Supply
I
REF
(Pin 29) : InternalReference Current
30
C11
225k
V
S
V
CC
R3
31
SLPE
R12
3
V
L
MIRROR
1
1.5
I
/85
(to transmit
channel)
V
CC
50
μ
A
V
CC
11
μ
A
kIL =
I
L
- 5.6mA
1016
Rslope = R3/55
V
L
= R12 x (40+ 0.5 x I
) E
-6
+ Rslope (I
L
- 5.6) E
-3
; I
inmA (for I
L
< 20mA)
V
L
= V
L
(at 20mA)+ Rslope x (I
L
-20) E
-3
; I
L
in mA (for I
L
> 20mA)
kIL =
I
L
- 5.6mA
1016
A
Figure 2 :
SLPE (Pin 31) : DCMask Slope
V
S
(Pin30) : Shunt Regulator
I - TEA7092GENERALINFORMATION
(continued)
I.4 - Input / Output Configurations
TEA7092 - TELEPHONE SET INTEGRATED CIRCUIT
6/57
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