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參數(shù)資料
| 型號： | AM79574 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | 用戶線接口電路 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 162K |
| 代理商： | AM79574 |
10
Am79574 Data Sheet
SWITCHING WAVEFORMS
Notes:
1. Unless otherwise noted, test conditions are BAT =
–
48 V, V
CC
= +5 V, V
EE
=
–
5 V, R
L
= 600
, C
HP
= 0.22
μ
F,
R
DC1
= R
DC2
= 20 k
, C
DC
= 0.1
μ
F, R
d
= 51.1 k
, no fuse resistors, two-wire AC output impedance, programming impedance
(Z
T
) = 600 k
resistive, receive input summing impedance (Z
RX
) = 300 k
resistive. (See Table 2 for component formulas.)
2. Overload level is defined when THD = 1%.
3. Balance return signal is the signal generated at V
TX
by V
RX
. This specification assumes that the two-wire AC load impedance
matches the impedance programmed by Z
T
.
4. Not tested in production. This parameter is guaranteed by characterization or correlation to other tests.
5. These tests are performed with a longitudinal impedance of 90
and metallic impedance of 300
for frequencies below
12 kHz and 135
for frequencies greater than 12 kHz. These tests are extremely sensitive to circuit board layout.
6. This parameter is tested at 1 kHz in production. Performance at other frequencies is guaranteed by characterization.
7. When the SLIC is in the anti-sat 2 operating region, this parameter is degraded. The exact degradation depends on system
design. The anti-sat 2 region occurs at high loop resistances when
V
BAT
–
V
AX
–
V
BX
is less than 14 V.
8. Midpoint is defined as the connection point between two 300
series resistors connected between A(TIP) and B(RING).
9. Fundamental and harmonics from 256 kHz switch-regulator chopper are not included.
10. Calculate loop-current limit using the following equations:
E1 to DET*
E0 to DET
E1*
E0
DET
tshdd
tshd0
tgkdd
tgkd0
Notes:
*
1. All delays measured at 1.4 V level.
E1 is internally connected to a logical 0.
DET*
E1*
tgkde
tshde
tgkde
tshde
In OHT state:
In Active state:
ILIMIT
0.5
RFEED
--------------------------------------
=
ILIMIT
0.8
RFEED
--------------------------------------
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79574-1JC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Subscriber Line Interface Circuit |
| AM79574-2JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| AM79574JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
| AM79578-1JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| AM79578-2JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
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