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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)： | 1/8頁(yè) |
| 文件大小： | 114K |
| 代理商： | HC5503C |
4-1
TM
AN9813.1
1-888-INTERSIL or 321-724-7143
|
Intersil and Design is a trademark of Intersil Corporation.
|
Copyright
Intersil Corporation 2000
Operation of the HC5503C, HC5503T Family of
SLICs Evaluation Board (HC5503XEVAL1)
Features
One Evaluation Board for Performance Testing of the
HC5503C, HC5503J and HC5503T Family of SLICs
Includes On-Board Op Amp and Cross Point Switch for
Evaluation of “Junctor” Applications
Monitoring of Switch Hook Detect (SHD) via On Board LED
Automatic On/Off Controller for Cross Point Switch
Connection
Functional Description
Evaluation Board
To facilitate testing of all 3 parts on one evaluation board, the
board is equipped with one Double Pole Double Throw
(DPDT) toggle switch S
1
. The DPDT switch determines the
connection of the SLIC’s Transmit (TX) and Receive (RX)
outputs. The outputs are either connected to banana jacks
TX or RX for full evaluation of the voice and DC feeding
characteristics (reference Figure 4) or the Onboard Op Amp
and Cross Point Switch for evaluation of the end-to-end
application (reference Figure 6).
The HC5503C/J/T evaluation board is configured to match a
600
line impedance via the tip and ring feed resistors R
B1
,
R
B2
, R
B3
and R
B4
. Provided with the evaluation board are
two generic HC5503X samples.
HC5503C
The HC5503C is a low cost Subscriber Line Interface Circuit
(SLIC), that replaces the components of an
unbalanced
discrete Analog circuit design.
HC5503J
The HC5503J is a low cost Subscriber Line Interface Circuit
(SLIC), that replaces discrete or thick film hybrid “Junctor”
unbalanced design solutions [1].
HC5503T
The HC5503T is a low cost Subscriber Line Interface Circuit
(SLIC), that replaces the components of a discrete
Transformer Analog circuit design.
Power Requirements for the HC5503C/J/T
Power Supply Connections
The HC5503C/J/T Evaluation Board requires three external
power supplies. The SLIC is powered by two supplies
V
BAT
= -48V (Typ) and V
CC
= +5V. The third supply
(V
EE
= -5V) powers the external Op Amps and Cross Point
Switch for the Junctor application.
Ground Connections
The HC5503C/J/T evaluation board has tied the analog,
digital and battery grounds to a common ground plane
designated GND. It is recommended that the analog, digital
and battery grounds of the SLIC be tied together as close to
the device pins as possible. The three external power
supplies should each be grounded to the evaluation board.
Getting Started
Verify that the sample is oriented in its socket correctly.
Correct orientation is with pin 1 pointing towards the
onboard pin 1 designator located in the upper left hand
corner of the sockets. (Reference the data sheet for
location of device pin 1.)
Verifying Basic SLIC Operation
The operation of the sample parts can be verified by
performing 4 tests:
1. Power Supply Current Verification.
2. Normal Loop Feed Verification.
3. Tip and Ring Voltage Verification.
4. Gain Verification (4-wire to 2-wire).
The above 4 tests require the following equipment: a 600
load, a sine wave generator, an AC volt meter and two
external supplies (V
BAT
, V
CC
).
Application Tip: When terminating tip and ring, it is handy to
assemble terminators using a Pomona MDP dual banana
plug connector as the terminating resistor receptacle. Refer
to Figure 1 for details.
Using the termination shown in Figure 1 provides an
unobtrusive technique for terminating tip and ring while still
providing access to both signals using the banana jack
feature of the MDP connector. Posts are also available that
fit into holes A and B, providing a solderable connection for
the terminating resistor.
Test #1 Power Supply Current Verification
A quick check of evaluation board and the sample is to
measure the supply currents. The readings should be similar
to the values listed in Table 1. The measurements can be
made using a series ammeter on each supply, or power
supplies with current displays.
Discussion
The currents measured include those of the SLIC and
supporting circuitry (i.e., 2nd HC5503X SLIC, Op Amp,
G
A
B
FIGURE 1. TERMINATION ADAPTER
600
Application Note
November 1998
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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 |
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