- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384392 > HC5503C (Intersil Corporation) Unbalanced PBX/ Key System SLIC,Subscriber Line Interface Circuit(用戶線接口電路) PDF資料下載
參數(shù)資料
| 型號(hào)： | HC5503C |
| 廠商： | Intersil Corporation |
| 英文描述： | Unbalanced PBX/ Key System SLIC,Subscriber Line Interface Circuit(用戶線接口電路) |
| 中文描述： | 不平衡交換機(jī)/關(guān)鍵系統(tǒng)的用戶接口，用戶線接口電路（用戶線接口電路） |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大小： | 114K |
| 代理商： | HC5503C |
4-6
Verification
The following procedure can be used to verify the above
calculations.
Setup
1. Replace resistors R
4
and R
14
with a 10.7k
resistor as
calculated above. Note, R
14
is Channel B’s equivalent of
Channel A’s R
4
.
2. Connect the power supplies to the Evaluation board.
3. Set V
BAT
to -48V, V
CC
to +5V and V
EE
to -5V.
4. Set the DPDT switch (S
1
) to Junctor operation. This
connects the Onboard Op Amp, Cross Point Switch and
the second HC5503J SLIC to the Transmit and Receive
outputs of Channel A.
5. Replace resistor R
10
with a short. This will result in a
network resistance of 50
total.
6. Terminate tip and ring of
both
Channel A and Channel B
with a 600
load.
7. Connect a sine wave generator in parallel with the 600
load across tip and ring of Channel A. The output of this
generator needs to be floating.
8. Set the generator for 1V
RMS
and 1kHz.
9. Connect an AC volt meter between test point SUM A and
ground. This will measure the AC voltage at the input to
the Differential Amplifier (SUM A).
10. Connect an AC volt meter between test point DIFF A and
ground. This will measure the AC voltage at the output of
the Differential Amplifier (DIFF A).
11. The Intra-Channel Transhybrid Balance is calculated
using the following formula in Equation 15.
12. To measure Intra-Channel Transhybrid Balance on
Channel B, connect the sine wave generator in parallel
with the 600
load across tip and ring of Channel B and
repeating steps 8 through 11 in a similar fashion. Voltage
measurements taken at SUM B and DIFF B. Results for
both Channels should be the same.
13. Compare results to that listed in Table 3 section
“Intra-Channel Transhybrid Balance.”
Functional Circuit Component
Descriptions
A brief description of each component is provided below.
The components will be grouped by function to provide
further insight into the operation of the HC5503C/J/T board.
Reference
[1] HC5503J - Future Product. For more information call
Don LaFontaine at (321) 729-5604.
TABLE 5. TWO WIRE SIDE, TIP AND RING
R
B1
, R
B2
,
R
B3
, R
B4
,
R
B5
, R
B6
,
R
B7
, R
B8
Feed resistors (R
B1
, R
B2
, R
B3
, R
B4
, R
B5
, R
B6
,
R
B7
and R
B8
) that set the 2-wire impedance to
600
. R
B2
, R
B4
, R
B6
and R
B8
are used for loop
current detection. R
B1
, R
B3
, R
B5
and R
B7
are
used for current limiting during a surge event.
D
1
, D
2
, D
3
,
D
4
, D
5
, D
6
,
D
7
, D
8
Secondary surge protection.
dB
20
SUMA
log
=
(EQ. 15)
TABLE 6. JUNCTOR CIRCUIT
CA324E
Intersil Quad Op Amp.
R
1
, R
2
, R
3
,
R
11
, R
12
, R
13
Transhybrid Balance and Gain setting resistors for
the Summing Amplifiers.
R
4
, R
5
, R
14
,
R
15
Transhybrid Balance and Gain setting resistors for
the Differential Amplifiers.
C
8
, C
17
, C
25
,
C
26
, C
23
, C
24
Compensation Capacitors to roll of the high fre-
quency gain of the Summing and Differential Am-
plifier. C
23
and C
24
prevent a DC loop.
R
6
, R
16
Provides a 600
termination looking into the
Junctor input.
R
10
Series resistor to bring the total resistance of the
“Network” to 150
. The “Network” is defined as the
totalresistancethatconnectsJunctorAtoJunctorB.
C
4
, C
5
, C
6
,
C
7
, C
21
, C
22
AC decoupling capacitors for the HC5503X Trans-
mit (TX) and Receive (RX) outputs.
CDM22M3493
Cross Point Switch. The resistance of the switch
(X0 to Y0) is approximately 50
.
S
1
DPDT Switch used to connect the SLIC’s Transmit
and Receive outputs of Channel A to either banana
jacks TX and RX or the onboard Op Amp and
Cross Point for evaluation of the Junctor circuit.
Q
1
, Q
2
, R
7
,
R
8
, R
9
, D
9
Automatic on/off controller of the Cross Point
Switch.ThiscircuitsensestheSHDoutputsofboth
SLICs. If both SLICs are in the off-hook condition,
then the Cross Point Switch is activated and the
Junctor A and Junctor B outputs are connected
together. If either SLIC is in the On-hook condition,
the Cross Point Switch is off and Junctor A and
Junctor B outputs are disconnected.
TABLE 7. FILTER CAPACITOR
C
1
, C
18
C
1
and C
18
are required for proper operation of the
SLIC’s loop current limit function.
TABLE 8. SUPPLY DECOUPLING CAPACITORS
C
2
, C
3
,
C
9
-C
16
,
C
19
, C
20
Supply decoupling capacitors.
TABLE 9. SHD LEDs
R
9
, R
20
, D
9
,
D
10
R
9
and R
20
are the Current limiting resistors for the
SHD LEDs (D
9
and D
10
).
TABLE 10. PULLUP RESISTORS
R
17
, R
19
Pull up resistors (R
17
, R
19
). Required for proper
operation of the SLIC.
Application Note 9813
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HC5503PRCBZ | Low Cost SLIC For Large Telecom Switches |
| HC5503PRCBZ96 | Low Cost SLIC For Large Telecom Switches |
| HC5503PRCR | Low Cost SLIC For Large Telecom Switches |
| HC5503PRCRZ | Low Cost SLIC For Large Telecom Switches |
| HC5503PRCRZ96 | Low Cost SLIC For Large Telecom Switches |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HC5503CB | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
| HC5503CB96 | 制造商:Rochester Electronics LLC 功能描述:HC5503CB (TAPE&REEL) - Bulk |
| HC5503CBZ | 功能描述:電信線路管理 IC LW COST ISDN SLIC 24S0 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| HC5503CBZ96 | 功能描述:電信線路管理 IC HC5503CBEL RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| HC5503CCB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。