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參數(shù)資料
| 型號： | HC5515CMZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SLIC ITU CO/PABX LP 28-PLCC |
| 標(biāo)準(zhǔn)包裝： | 925 |
| 功能： | 用戶線路接口概念（SLIC） |
| 電路數(shù)： | 1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 功率（瓦特）： | 1.5W |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 管件 |
| 包括： | 可編程回路電流檢測器，振鈴?fù)禉z測器，熱關(guān)機(jī) |
17
FN4235.6
June 6, 2006
13
C1
TTL compatible logic input. The logic states of C1 and C2 determine the operating states (Open Circuit, Active, Ringing
or Standby) of the SLIC.
14
RDC
DC feed current programming resistor pin. Constant current feed is programmed by resistors RDC1 and RDC2
connected in series from this pin to the receive summing node (RSN). The resistor junction point is decoupled to AGND
to isolate the AC signal components.
15
AGND
Analog ground.
16
RSN
Receive Summing Node. The AC and DC current flowing into this pin establishes the metallic loop current that flows
between tip and ring. The magnitude of the metallic loop current is 1000 times greater than the current into the RSN
pin. The constant current programming resistors and the networks for program receive gain and 2-wire impedance all
connect to this pin.
18
VEE
-5V power supply.
19
VTX
Transmit audio output. This output is equivalent to the TIP to RING metallic voltage. The network for programming the
2-wire input impedance connects between this pin and RSN.
20
HPR
RING side of AC/DC separation capacitor CHP. CHP is required to properly separate the ring AC current from the DC
loop current. The other end of CHP is connected to HPT.
21
HPT
TIP side of AC/DC separation capacitor CHP. CHP is required to properly separate the tip AC current from the DC loop
current. The other end of CHP is connected to HPR.
22
RD
Loop current programming resistor. Resistor RD sets the trigger level for the loop current detect circuit. A filter capacitor
CD is also connected between this pin and VEE.
23
DT
Input to ring trip comparator. Ring trip detection is accomplished by connecting an external network to a comparator in
the SLIC with inputs DT and DR.
25
DR
Input to ring trip comparator. Ring trip detection is accomplished by connecting an external network to a comparator in
the SLIC with inputs DT and DR.
26
TIPSENSE
Internally connected to output of tip power amplifier.
27
TIPX
28
RINGX
Output of ring power amplifier.
3, 10 17,
24
N/C
No internal connection.
Pin Descriptions (Continued)
PLCC
SYMBOL
DESCRIPTION
HC5515
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