參數資料
型號: IDT821621J
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 模擬傳輸電路
英文描述: LONG HAUL SLIC
中文描述: TELECOM-SLIC, PQCC32
封裝: PLASTIC, LCC-32
文件頁數: 14/21頁
文件大?。?/td> 322K
代理商: IDT821621J
AC Electrical Characteristics
12
October 8, 2003
IDT821621
LONG HAUL SLIC
Table 7 — Idle Channel Noise
Description
Test Conditions
Min.
Typ.
Max.
Unit
Note
C-message Weighted Noise
R
L
= 600
0 to 70°C
R
L
= 600
-40 to +85°C
R
L
= 600
0 to 70°C
R
L
= 600
-40 to +85°C
7
+10
+12
dBrnc
Psophometric Weighted Noise
-83
-80
-78
dBmp
Table 8 — Insertion Loss and Balance Return Loss Signal
Description
Test Conditions (See
Figure 10
,
Figure 11
)
Min.
Typ.
Max.
Unit
Note
Gain Accuracy, 4- to 2-wire
0 dBm, 1 kHz
-0.20
+0.20
dB
Gain Accuracy, 2- to 4-wire, 4- to 4-wire
0 dBm, 1 kHz
-6.22
-6.02
-5.82
Gain Accuracy, 4- to 2-wire
On-hook
-0.35
+0.35
Gain Accuracy, 2- to 4-wire, 4- to 4-wire
On-hook
-6.37
-6.02
-5.67
Gain Accuracy Over Frequency
300 to 3.4 kHz, relative to 1 kHz
-0.15
+0.15
Gain Tracking
+3 dBm to -55 dBm, relative to 0 dBm
-0.15
+0.15
Gain Tracking, On-hook
0 dBm to -37 dBm
+3 dBm to 0 dBm
-0.15
-0.35
+0.15
+0.35
Group Delay
0 dBm, 1 kHz
4
μ
s
Table 9 — Line Characteristics
Description
Test Conditions
Min.
Typ.
Max.
Unit
Note
I
L
, Short Loops, Active State
R
LDC
= 600
R
LDC
= 1930
, VBAT = -42.75 V, T
A
= 25 °C
20
23
26
mA
I
L
, Long Loops, Active State
18
19
I
L
, Accuracy, Standby State
T
A
= 25 °C
0.7I
L
I
L
1.3I
L
Constant-current region
18
30
I
L
, Loop Current, Disconnect State
R
L
= 0
100
μ
A
I
L
LIM
Active, A and B to ground
65
mA
VAB, Open Circuit Voltage
V
BAT
= -52 V
-42.75
-44
V
Table 10 — Power Supply Rejection Ratio (V
Ripple
=100 mVrms), Active State
Description
Test Conditions
Min.
Typ.
Max.
Unit
Note
VCC
50 Hz to 3.4 kHz
30
40
dB
VBAT
50 Hz to 3.4 kHz
28
50
Effective Internal Resistance
CAS pin to VBAT
335
k
I
L
R
L
3V
200
+
--VBAT
=
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