參數(shù)資料
型號(hào): TEA1085T
廠商: NXP SEMICONDUCTORS
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Listening-in circuit for line-powered telephone sets
中文描述: SPECIALTY TELECOM CIRCUIT, PDSO24
封裝: PLASTIC, SO-24
文件頁(yè)數(shù): 19/32頁(yè)
文件大?。?/td> 199K
代理商: TEA1085T
March 1992
19
Philips Semiconductors
Preliminary specification
Listening-in circuit for line-powered
telephone sets
TEA1085; TEA1085A
Notes
1.
2.
3.
Typical output power is 5 mW into 50
Typical output power is 20 mW into 50
Typical output power is 40 mW into 50
MUTE input; TEA1085
(toggle function, positive edge
triggered set-reset flip-flop)
LOW level input voltage
HIGH level input voltage
input current
minimum input pulse width
minimum pulse repetition time
supply voltage below which
MUTE toggle is reset
reduction of gain from LSI1,
LSI2 to QLS1, QLS2
V
IL
V
IH
I
MUTE
t
W
P
R
V
BB(MUTE)
0
1.5
tbf
22
50
2
2
0.3
V
BB
+
0.4
28
tbf
V
V
μ
A
μ
s
ms
V
MUTE = LOW
G
v
MUTE = ON
60
100
dB
MUTE input; TEA1085A
V
IL
V
IH
I
MUTE
G
v
LOW level input voltage
HIGH level input voltage
input current
reduction of gain from LSI1,
LSI2 to QLS1, QLS2
0
1.5
60
10
100
0.3
V
BB
+
0.4
20
V
V
μ
A
dB
MUTE = HIGH
MUTE = HIGH
Power down input
V
IL
V
IH
I
PD
LOW level input voltage
HIGH level input voltage
input current
0
1.5
2.3
0.3
V
BB
+
0.4
2.8
V
V
μ
A
PD = HIGH
Logic inputs GSC1 and GSC2
V
IL
V
IH
I
GSC
LOW level input voltage
HIGH level input voltage
input current
0
1.5
6
0.3
V
BB
+
0.4
8
V
V
μ
A
GSC = HIGH
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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