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參數(shù)資料
| 型號： | HC55171BIM |
| 廠商： | INTERSIL CORP |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | Low Cost 5 REN Ringing SLIC for ISDN Modem/TA and WL |
| 中文描述： | TELECOM-SLIC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 87K |
| 代理商： | HC55171BIM |
71
Pin Descriptions
PLCC
SYMBOL
DESCRIPTION
1
AGND
Analog Ground - Serves as a reference for the transmit output and receive input terminals.
2
V
CC
Positive Voltage Source - Most Positive Supply.
3
V
REF
An external voltage connected to this pin will override the internal V
BAT
/2 reference.
4
F1
Power Denial - An active low TTL compatible logic control input. When enabled, the output of the ring amplifier
will ramp close to the output voltage of the tip amplifier.
5
F0
TTL compatible logic control input that must be tied high for proper SLIC operation.
6
RS
TTL compatible logic control input that must be tied high for proper SLIC operation.
7
SHD
Switch Hook Detection - An active low TTL compatible logic output. Indicates an off-hook condition.
8
RTD
Ring Trip Detection - An active low TTL compatible logic output. Indicates an off-hook condition when the
phone is ringing.
9
TST
A TTL logic input. A low on this pin will keep the SLIC in a power down mode. The TST pin in conjunction with
the ALM pin can provide thermal shutdown protection for the SLIC. Thermal shutdown is implemented by a
system controller that monitors the ALM pin. When the ALM pin is active (low) the system controller issues a
command to the TST pin (low) to power down the SLIC. The timing of the thermal recovery is controlled by
the system controller.
10
ALM
A TTL compatible active low output which responds to the thermal detector circuit when a safe operating die
temperature has been exceeded.
11
I
LMT
Loop Current Limit - Voltage on this pin sets the short loop current limiting conditions.
12
OUT1
The analog output of the spare operational amplifier.
13
-IN1
The inverting analog input of the spare operational amplifier. The non-inverting input is internally connected
to AGND.
14
TIP SENSE
An analog input connected to the TIP (more positive) side of the subscriber loop through a feed resistor.
Functions with the RING terminal to receive voice signals and for loop monitoring purpose.
15
RING SENSE 1
An analog input connected to the RING (more negative) side of the subscriber loop through a feed resistor.
Functions with the TIP terminal to receive voice signals and for loop monitoring purposes.
16
RING SENSE 2
This is an internal sense mode that must be tied to RING SENSE 1 for proper SLIC operation.
17
V
RX
Receive Input, 4-Wire Side - A high impedance analog input. AC signals appearing at this input drive the Tip
Feed and Ring Feed amplifiers deferentially.
18
NU
Not used in this application. This pin should be left floating.
19
V
TX
Transmit Output, 4-Wire Side - A low impedance analog output which represents the differential voltage across
TIP and RING. Since the DC level of this output varies with loop current, capacitive coupling to the next stage
is necessary.
20
RDI
TTL compatible input to drive the uncommitted relay driver.
21
RDO
This is the output of the uncommitted relay driver.
22
BGND
Battery Ground - All loop current and some quiescent current flows into this terminal.
23
NU
Not used in this application. This pin should be either grounded or left floating.
24
V
RING
Ring signal input.
25
TF
This is the output of the tip amplifier.
26
RF
This is the output of the ring amplifier.
27
V
BAT
The negative battery source.
28
RTI
Ring Trip Input - This pin is connected to the external negative peak detector output for ring trip detection.
HC55171B
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HC55171IB | 5 REN Ringing SLIC for ISDN Modem/TA and WLL |
| HC55171 | 5 REN Ringing SLIC for ISDN Modem/TA and WLL |
| HC55171CB | 5 REN Ringing SLIC for ISDN Modem/TA and WLL |
| HC55171CM | 5 REN Ringing SLIC for ISDN Modem/TA and WLL |
| HC55171IM | 5 REN Ringing SLIC for ISDN Modem/TA and WLL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HC55171CB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HC55171CM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HC55171CM96 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HC55171IB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HC55171IM | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:5 REN Ringing SLIC for ISDN Modem/TA and WLL |
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