ACS102A-PL Ver la hoja de datos (PDF) - Semtech Corporation

Número de pieza

componentes Descripción

Fabricante

ACS102A-PL

Fiber Modem

Semtech Corporation 

Advanced Communications

ACS102A Data Sheet

ELECTRICAL SPECIFICATION

Important Note: The "Absolute Maximum Ratings" are stress ratings only, and functional operation of the device at conditions other

than those indicated in the "Operating Conditions" sections of this specification are not implied. Exposure to the absolute maximum

ratings for an extended period may reduce the reliability or useful lifetime of the product.

Absolute Maximum Ratings

Dynamic Characteristics (for specified operating conditions)

Parameter

Symbol Min

Max Units

Parameter

Symbol Min Typ Max Units

Power supply VD+ and VA+

(VDD = VD+ or VA+)

Input voltage

(non-supply pins)

Input current

(except

LAN,LAP,PINN,PINP,CNT)

Input current

( LAN,LAP,PINN,PINP,CNT)

Storage temperature

Operating Conditions

VDD -0.3

6.0

V

Vin GND - 0.3 VDD + 0.3 V

Iin

-

10.0 mA

Iin

-

Tstor

-50

1.0 mA

160

ºC

Parameter

Symbol Min Typ Max Units

Power supply

(VA+ and VD+)

V+ 3.3 5.0 5.25 V

Ambient temperature range

TA -40 -

85 ºC

Static Digital Input Conditions (for specified operating conditions)

For Digital Input pins: TxD, RTS, DTR, PORB, RII, DP, DR(3:1), DM(3:1), HD(2:1).

Parameter

Symbol Min Typ Max Units

Crystal frequency

(XTI, XTO)

External clock (XTI)

High or Low time

RxD and TxD data rate

Function of DR(1:3) setting

Digital output - fall time

XTAL 5

fclp 40

fclf DC

tf

-

27 MHz

-

60

%

- XTAL/150 Hz

-

100

ns

Digital output - rise time

tr

-

-

100

ns

Power consumption

(Note 2)

Pc

-

20

-

mW

Note 2: See section on Calculating average current and power consumption

Matching Characteristics (for specified operating conditions)

Parameter

Symbol Min Typ Max Units

Crystal tolerance

2

use parallel resonate crystal and

Ct -250 0 250 ppm

recommended padding capacitors

Amplifier sensitivity input current

Irec 500 - - nA

Maximum amplifier input current

Imax - - 500 µA

Vin High

Vin Low

Input current (High)

Input current (Low)

Vih 2.0 -

-

V

Vil

-

- 0.8

V

Iin

- 0.2 5

µA

Iin

-

8 15

µA

Rtrc placed between TRC and GND Rtrc 0.8k - 40k Ω

LED current

Rtrc = 1 kOhm

Rtrc = 40 kOhms

Iled 75 100 125 mA

1.8 2.5 3.2

Block Error Rate

BER

-

- 10-9

Static Digital Output Conditions (for specified operating conditions)

For Digital Output pins: RxD, DSR, CTS, DCDB, ERRL, RIO, HBT.

Parameter

Symbol Min Typ Max Units

Vout Low

Vol

0

- 0.5 V

Single Fiber mode Parameters

LED capacitance with Vr =0

with Irec = 500 nA

with Irec = 1000 nA

LED leakage with Vr = 1.4 V

Cl -

-

Lleak -

- 50 pF

- 100

- 150 nA

Vout High

Voh

VDD-0.5

-

-

V

Isource and Isink (except HBT)

(Note 1)

Iout

4

-

-

mA

Isource and Isink (HBT)

Iout

16

-

- mA

LED reverse bias

Dual Fiber mode Parameters

PIN capacitance with Vr = 0

PIN leakage current

Vr

-0-V

Cl -

Lleak -

- 20 pF

- 150 nA

Max load capacitance

Cl

-

- 50 pF

Pin reverse bias

Vr

-0-V

Note 1: Output source and sink currents should be kept to a minimum in order to achieve low power

consumption.

DTE

ACS102A

TxD

RxD

RTS

CTS

DTR

DSR

RII

RIO

One single fiber link

ACS102A

RxD

TxD

CTS

RTS

DSR

DTR

RIO

RII

DCE

Figure 2. Data and handshake signals transmitted over a single fiber.

9

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