參數(shù)資料
型號(hào): HC5503PRCBZ96
廠商: INTERSIL CORP
元件分類: 模擬傳輸電路
英文描述: Low Cost SLIC For Large Telecom Switches
中文描述: TELECOM-SLIC, PDSO24
封裝: LEAD FREE, PLASTIC, MS-013AD, SOIC-24
文件頁數(shù): 6/11頁
文件大?。?/td> 265K
代理商: HC5503PRCBZ96
6
15
15
PD
Power Denial - A low active TTL - Compatible logic input. When enabled, the ring feed voltage collapses
to the tip feed voltage (~4V). The DC feed is disabled, but the AC transmission is maintained. The switch
hook detect (SHD) is not necessarily valid, and the relay driver (RD) output is disabled.
16
16
RC
Ring Command - A low active TTL - Compatible logic input. When enabled, the relay driver (RD) output
goes low on the next high level of the ring sync (RS) input, as long as the SLIC is not in the power denial
state (PD = 0) or the subscriber is not already off- hook (SHD = 0).
17
NC
Leave disconnected.
18
20
OUT
The analog output of the spare operational amplifier.
19
21
-IN
The inverting analog input of the spare operational amplifier.
20
22
+IN
The non-inverting analog input of the spare operational amplifier.
21
23
RX
Receive Input, Four Wire Side - A high impedance analog input which is internally biased. Capacitive
coupling to this input is required. AC signals appearing at this input differentially drive the Tip feed and
Ring feed terminals.
22
25
C
2
Capacitor #2 - An external capacitor to be connected between this terminal and analog ground. This
capacitor is required for the proper operation of ring trip detection. Recommended value 0.82
μ
F
±
10%
10V non-polarized.
23
26
AG
Analog Ground - To be connected to zero potential and serves as a reference for the transmit output (TX)
and receive input (RX) terminals.
24
27
TX
Transmit Output, Four Wire Side - A low impedance analog output proportional to the loop current.
Transhybrid balancing must be performed beyond this output to completely implement two to four wire
conversion. This output is unbalanced and referenced to analog ground. Since the DC level of this output
varies with loop current, capacitive coupling to the next stage is essential.
2, 17,
18,24, 29,
30,
NC
No internal connection.
NOTE: All grounds (AG, BG, and DG) must be applied before V
B
+ or V
B
-. Failure to do so may result in premature failure of the part. If a user wishes
to run separate grounds off a line card, the AG must be applied first.
Pin Descriptions
(Continued)
24 PIN
DIP/SOIC
7 x 7
QFN
SYMBOL
DESCRIPTION
HC5503PRC
相關(guān)PDF資料
PDF描述
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HC5503PRCRZ96 Low Cost SLIC For Large Telecom Switches
HC5503PRC Low Cost SLIC For Large Telecom Switches(低成本應(yīng)用于大型電信開關(guān)的用戶線接口)
HC5503PR ()
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