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參數(shù)資料
| 型號： | HC9P5504B-5ZX96 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 6/9頁 |
| 文件大小： | 0K |
| 描述： | IC SLIC EIA/ITU PABX 24-SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 功能： | 用戶線路接口概念（SLIC） |
| 電路數(shù)： | 1 |
| 功率（瓦特）： | 550mW |
| 工作溫度： | 0°C ~ 75°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-SOIC |
| 包裝： | 帶卷 (TR) |
| 包括： | BORSCHT 功能，振鈴繼電器驅(qū)動器，摘機(jī)或掛機(jī)開關(guān)，接地鍵和振鈴?fù)禉z測 |
6
Functional Diagram
21
RX
Receive Input, 4-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, which in
turn drive tip and ring through 300
of feed resistance on each side of the line.
22
C4
Capacitor #4 - An external capacitor to be connected between this terminal and analog ground. This capacitor
prevents false ground key indication and false ring trip detection from occurring when longitudinal currents are
induced onto the subscriber loop from near by power lines and other noise sources. This capacitor is also required
for the proper operation of ring trip detection. Typical value is 0.5
F, to 1.0F, 20V. This capacitor should be
nonpolarized.
23
AG
(Note 5)
Analog Ground - To be connected to zero potential and serves as a reference for the transmit output (TX) and receive
input (RX) terminals.
24
TX
Transmit Output, 4-Wire Side - A low impedance analog output which represents the differential voltage across Tip
and Ring. Transhybrid balancing must be performed (using the SLIC microcircuit’s spare op amp) 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.
NC
No internal connection.
Pin Descriptions (Continued)
24 PIN
SOIC
SYMBOL
DESCRIPTION
LOOP
MONITORING
RING
CONTROL
2 WIRE
LOOP
SECONDARY
PROTECTION
LINE
DRIVERS
TIP
RING
VB-
PD
POWER DENIAL
150
RING
150
RF
BG
150
TF
TIP
RD
RC
RS
RING SYNC
RING COMMAND
RING
TRIP
SHD
GKD
OUT
RX
RECEIVE
INPUT
SLIC MICROCIRCUIT
1/2 RING
RELAY
VB-
RING
VOLTAGE
RFS
1/2 RING
RELAY
150
SWITCH HOOK
DETECTION
GROUND KEY
DETECTION
BATTERY
FEED
LOOP
CURRENT
LIMITER
DIFF
AMP
TX
TRANSMIT
OUTPUT
+
-
+1
-1
OP
AMP
+IN
-IN
+
-
HC-5504B
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| HC9P5504B-9 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:EIA/ITU PABX SLIC with 40mA Loop Feed |
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