參數(shù)資料
型號： 933821300112
廠商： NXP SEMICONDUCTORS
元件分類： 無繩電話/電話
英文描述： TELEPHONE SPEECH CKT, PDIP18
封裝： 0.300 INCH, PLASTIC, SOT-102, DIP-18
文件頁數(shù)： 6/29頁
文件大?。?/td> 231K
代理商： 933821300112
June 1990
14
Philips Semiconductors
Product specication
Low voltage versatile telephone
transmission circuit with dialler interface
TEA1067
Gain adjustment GAR
Gain variation of receiving
amplifier achievable by
varying R4 between
GAR and QR
G
v
11
+8dB
Mute input
Input voltage HIGH
VIH
1.5
VCC
V
Input voltage LOW
VIL
0.3
V
Input current
IMUTE
815
A
Gain reduction
MIC
+ or MIC to LN
MUTE = HIGH
G
v
70
dB
Voltage gain from DTMF
to QR
+ or QR
MUTE = HIGH;
R4 = 100 k
;
single-ended;
RL = 300
Gv
21
19
17
dB
Power-down input PD
Input voltage HIGH
VIH
1.5
VCC
V
Input voltage LOW
VIL
0.3
V
Input current
IPD
510
A
Automatic gain control
input AGC
Controlling the gain
from IR to QR
+/QR and
the gain from MIC
+/MIC
to LN; R6 between AGC
and VEE
R6 = 110 k
Gain control range
Iline = 70 mA
Gv
5.5
5.9
6.3
dB
Highest line current for
maximum gain
Iline
23
mA
Minimum line current for
minimum gain
Iline
61
mA
Reduction of gain between
Iline = 15 mA and
Iline = 35 mA
Gv
1.0
1.5
2.0
dB
PARAMETER
CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
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