Datasheet.kr   

ATTL7554AP 데이터시트 PDF




Agere Systems에서 제조한 전자 부품 ATTL7554AP은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 ATTL7554AP 자료 제공

부품번호 ATTL7554AP 기능
기능 L7554 Low-Power SLIC
제조업체 Agere Systems
로고 Agere Systems 로고


ATTL7554AP 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 28 페이지수

미리보기를 사용할 수 없습니다

ATTL7554AP 데이터시트, 핀배열, 회로
Data Sheet
March 1997
L7554 Low-Power SLIC
Features
s Low active power (typical 165 mW during on-hook
transmission)
s Sleep state for low idle power (76 mW)
s Quiet Tip/Ring polarity reversal
s Supports meter pulse injection
s Spare op amp for meter pulse filtering
s –24 V to –72 V power supply operation
s Distortion-free on-hook transmission
s Convenient operating states:
— Forward powerup
— Polarity reversal powerup
— Forward low-power scan
— Polarity reversal low-power scan
— Ground start
— Disconnect (high impedance)
s Adjustable supervision functions:
— Off-hook detector with longitudinal rejection
— Ground key detector
— Ring trip detector
s Independent, adjustable, dc and ac parameters:
— dc feed resistance
— Loop current limit
— Termination impedance
s Thermal protection
Description
This electronic subscriber loop interface circuit
(SLIC) is optimized for low-power consumption while
providing an extensive set of features.
Quiet polarity reversal is possible because the ac
path is uninterrupted during transition.
The L7554 includes the ground start state and a
summing node for meter pulse injection to 2.2 Vrms.
A spare, uncommitted op amp is included for meter
pulse filtering.
The device is being offered in two versions, based
upon maximum battery. The L7554AP is guaranteed
to –60 V, and the L7554BP is guaranteed to –72 V.
The device is available in a 44-pin PLCC package. It
is built by using a 90 V complementary bipolar
(CBIC) process.




ATTL7554AP pdf, 반도체, 판매, 대치품
L7554 Low-Power SLIC
Pin Information
Data Sheet
March 1997
VCC
RCVP
RCVN
TXI
LCTH
VREG
DCOUT
VBAT
PR
6 5 4 3 2 1 44 43 42 41 40
7 39
8 38
9 37
10 36
11 35
12 L7554 34
13 33
14 32
15 31
16 30
17 29
18 19 20 21 22 23 24 25 26 27 28
FB1
SN
XMT
B1
B2
NLC
NRDET
RTSP
RTSN
PT
VTX
Figure 2. Pin Diagram (PLCC Chip)
12-2571 (C)
Table 1. Pin Descriptions
Pin Symbol Type
Description
3 IPROG
I Current-Limit Program Input. A resistor to DCOUT sets the dc current limit of the
device.
8 VCC +5 V Power Supply.
9 RCVP
I Receive ac Signal Input (Noninverting). This high-impedance input controls the ac
differential voltage on Tip and Ring.
10 RCVN
I Receive ac Signal Input (Inverting). This high-impedance input controls the ac differen-
tial voltage on Tip and Ring.
11 TXI — ac/dc Separation. Connect a 0.1 µF capacitor from this pin to VTX.
12 LCTH I Loop Closure Threshold Input. Connect a resistor to DCOUT to set off-hook threshold.
13 VREG
I Regulated Negative dc Battery Voltage. Can be connected to an external regulator.
Otherwise, connect to VBAT.
14 DCOUT O dc Output Voltage. This output is a voltage that is directly proportional to the absolute
value of the differential Tip/Ring current.
15 VBAT Battery Supply. Negative high-voltage power supply.
16 PR I/O Protected Ring. The output of the ring driver amplifier and input to loop sensing circuitry.
Connect to loop through overvoltage protection.
18 CF2 — Filter Capacitor 2. Connect a 0.1 µF capacitor from this pin to AGND.
19 CF1 — Filter Capacitor 1. Connect a 0.47 µF capacitor from this pin to pin CF2.
4 Lucent Technologies Inc.

4페이지










ATTL7554AP 전자부품, 판매, 대치품
Data Sheet
March 1997
L7554 Low-Power SLIC
Recommended Operating Conditions
Parameter
Min Typ Max Unit
Ambient Temperature
–40 —
85 °C
VCC Supply Voltage
4.75 5.0 5.25 V
VBAT Supply Voltage:
L7554AP
L7554BP
V
–24 –40 –60
–24 –48 –72 V
Loop Closure Threshold-detection Programming Range
10 ILIM mA
dc Loop Current-limit Programming Range
5 40 45 mA
On- and Off-hook 2-wire Signal Level
— 1 2.2 Vrms
ac Termination Impedance Programming Range
150 600 1300
Electrical Characteristics
Minimum and maximum values are testing requirements. Typical values are characteristic of the device and are the
result of engineering evaluations. Typical values are for information purposes only and are not part of the testing
requirements. Minimum and maximum values apply across the entire temperature range (–40 °C to +85 °C) and
the entire battery range unless otherwise specified. Typical is defined as 25 °C, VCC = 5.0 V, VBAT = –48 V, and
ILIM = 40 mA. Positive currents flow into the device. Test circuit is Figure 4 unless noted.
Table 4. Power Supply
Parameter
Power Supply—Powerup, No Loop Current
ICC
IBAT (VBAT = –48 V)
Power Dissipation (VBAT = –48 V)
Power Supply—Low-Power Scan, Forward Bat, No Loop
Current
ICC
IBAT (VBAT = –48 V)
Power Dissipation (VBAT = –48 V)
Power Supply Rejection 500 Hz to 3 kHz
(See Figures 5, 6, 15, and 16.)1
VCC
VBAT
Thermal Protection Shutdown (Tjc)
Thermal Resistance, Junction to Ambient (θJA)
Min
35
45
Typ
4.1
–3.0
165
2.7
–1.4
82
175
47
1. This parameter is not tested in production. It is guaranteed by design and device characterization.
Max Unit
4.8 mA
–3.5 mA
191 mW
3.7 mA
–1.7 mA
100 mW
— dB
— dB
°C
°C/W
Lucent Technologies Inc.
7

7페이지


구       성 총 28 페이지수
다운로드[ ATTL7554AP.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
ATTL7554AP

L7554 Low-Power SLIC

Agere Systems
Agere Systems

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵