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參數資料
| 型號： | HC5523 |
| 廠商： | Intersil Corporation |
| 英文描述： | LSSGR/TR57 CO/Loop Carrier SLIC with Low Power Standby |
| 中文描述： | LSSGR/TR57文書主任/河套低功耗待機載波用戶接口 |
| 文件頁數： | 5/18頁 |
| 文件大?。?/td> | 176K |
| 代理商： | HC5523 |
60
4-Wire to 2-Wire
-55dBm to -40dBm (Note 22, Figure 9)
-0.2
-
0.2
dB
FIGURE 8. CURRENT GAIN-RSN TO METALLIC
FIGURE 9. FREQUENCY RESPONSE, INSERTION LOSS,
GAIN TRACKING AND HARMONIC DISTORTION
NOISE
Idle Channel Noise at 2-Wire
C-Message Weighting (Note 23, Figure 10)
-
8.5
-
dBrnC
Psophometrical Weighting
(Note 23, Figure 10)
-
-81.5
-
dBrnp
Idle Channel Noise at 4-Wire
C-Message Weighting (Note 24, Figure 10)
-
8.5
-
dBrnC
Psophometrical Weighting
(Note 23, Figure 10)
-
-81.5
-
dBrnp
HARMONIC DISTORTION
2-Wire to 4-Wire
0dBm, 1kHz (Note 25, Figure 7)
-
-65
-54
dB
4-Wire to 2-Wire
0dBm, 0.3kHz to 3.4kHz (Note 26, Figure 9)
-
-65
-54
dB
BATTERY FEED CHARACTERISTICS
Constant Loop Current Tolerance
R
DCX
= 41.2k
I
L
= 2500/(R
DC1
+ R
DC2
),
-40
o
C to 85
o
C (Note 27)
0.92I
L
I
L
1.08I
L
mA
Loop Current Tolerance (Standby)
I
L
= (V
BAT
-3)/(R
L
+1800),
-40
o
C to 85
o
C (Note 28)
0.8I
L
I
L
1.2I
L
mA
Open Circuit Voltage (V
TIP
- V
RING
)
-40
o
C to 85
o
C, (Active) R
SG
=
∞
14
16.67
20
V
LOOP CURRENT DETECTOR
On-Hook to Off-Hook
R
D
= 39k
,
-40
o
C to 85
o
C
372/R
D
465/R
D
558/R
D
mA
Off-Hook to On-Hook
R
D
= 39k
,
-40
o
C to 85
o
C
325/R
D
405/R
D
485/R
D
mA
Loop Current Hysteresis
R
D
= 39k
,
-40
o
C to 85
o
C
25/R
D
60/R
D
95/R
D
mA
GROUND KEY DETECTOR
Tip/Ring Current Difference - Trigger
(Note 29, Figure 11)
8
12
17
mA
Tip/Ring Current Difference - Reset
(Note 29, Figure 11)
3
7
12
mA
Hysteresis
(Note 29, Figure 11)
0
5
9
mA
Electrical Specifications
T
A
= -40
o
C to 85
o
C, V
CC
= +5V
±
5%, V
EE
= -5V
±
5%, V
BAT
= -48V, AGND = BGND = 0V, R
DC1
= R
DC2
= 41.2k
,
R
D
= 39k
, R
SG
= 0
, R
F1
= R
F2
= 0
, C
HP
= 10nF, C
DC
= 1.5
μ
F, Z
L
= 600
, Unless Otherwise Specified. All pin
number references in the figures refer to the 28 lead PLCC package.
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
R
DC2
41.2k
R
DC1
41.2k
C
DC
1.5
μ
F
R
L
600
TIP
27
RING
28
DC
14
RSN
16
R
RX
300k
V
RSN
= 0V
V
RSN
= -3V
GRX = ((V
TR1
- V
TR2
)(300k))/(-3)(600)
Where: V
TR1
is the Tip to Ring Voltage with V
RSN
= 0V
and V
TR2
is the Tip to Ring Voltage with V
RSN
= -3V
V
TR
R
T
600k
R
RX
I
DCMET
300k
C
1/
ω
C < R
L
E
G
R
L
V
TX
600
V
TR
E
RX
TIP
27
V
TX
19
RING
28
RSN
16
HC5523
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