BTL1A16NB-TR datasheet, PDF - EEWORLD Datasheet

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BTL1A16NB-TR: DescriptionLine Transceiver, 1 Func, 2 Driver, 2 Rcvr, BIPolar, PDSO16, PLASTIC, SOIC-16; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size362KB，18 Pages; ManufacturerBroadcom

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BTL1A16NB-TR Overview

Line Transceiver, 1 Func, 2 Driver, 2 Rcvr, BIPolar, PDSO16, PLASTIC, SOIC-16

BTL1A16NB-TR Parametric

Parameter Name	Attribute value
Maker	Broadcom
package instruction	SOP,
Reach Compliance Code	compliant
ECCN code	EAR99
Differential output	YES
Number of drives	2
Input properties	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER
Interface standards	ESDI
JESD-30 code	R-PDSO-G16
JESD-609 code	e0
Number of functions	1
Number of terminals	16
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Maximum receive delay	4 ns
Number of receiver bits	2
Maximum seat height	1.73 mm
surface mount	YES
technology	BIPOLAR
Temperature level	AUTOMOTIVE
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
maximum transmission delay	2 ns

BTL1A16NB-TR Preview

Data Sheet

October 1998

Dual Differential Transceivers

BTK1A, BTL1A, and BTM1A

Features

Driver Features

Description

The BTK1A, BTL1A, and BTM1A devices are dual

differential transceiver circuits that transmit and

receive digital data over balanced transmission lines

and are compatible with Lucent Technologies Micro-

electronics Group quad differential drivers and

receivers. The dual drivers translate input TTL logic

levels to differential pseudo-ECL output levels. The

dual receivers convert differential input logic levels to

TTL output levels. Each driver/receiver pair has its

own common enable control allowing serial data and

a control clock to be transmitted and received on a

single integrated circuit. The BTK1A transceiver

requires the customer to supply termination resistors

on the circuit board. The BTL1A transceiver has an

internal 220

Ω

termination resistor connected to

ground on each driver output and is equivalent to the

8923A device. The BTM1A transceiver has an inter-

nal resistor termination for both the driver outputs

(220

Ω)

and receiver inputs (110

Ω),

eliminating the

need for external resistors on the circuit board when

used with 100

Ω

impedance, twisted-pair (or flat)

cable. These transceivers replace the Lucent 41

Series transceivers.

The powerdown loading characteristics of the

receiver input circuit are approximately 8 kΩ relative

to the power supplies; hence, they will not load the

transmission line when the circuit is powered down.

For those circuits with termination resistors, the line

will remain impedance matched when the circuit is

powered down. The driver does not load the line

when it is powered down.

The packaging options that are available for the

dual differential transceivers include a 16-pin DIP; a

16-pin, J-lead SOJ; a 16-pin, gull-wing SOIC; and a

16-pin, narrow-body, gull-wing SOIC.

Two line drivers per package

Logic to convert TTL input logic levels to differen-

tial, pseudo-ECL output logic levels

No line loading when V

= 0 V

High output driver for 50

Ω

loads

200 mA short-circuit current (typical)

2.0 ns maximum propagation delay

<0.2 ns output skew (typical)

Receiver Features

Two line receivers per package

High input impedance

≅

8 kΩ

Logic that converts differential input logic levels to

TTL output logic levels

4.0 ns maximum propagation delay

<0.20 V input sensitivity (typical)

−1.2

V to

+7.2

V common-mode range

Common Device Features

Common enable for each driver/receiver pair

Operating temperature range: –40

°C

to +125

°C

(wider than the 41 Series)

Single 5.0 V

10% supply

400 Mbits/s maximum data rate

Meets ESDI standards

ESD performance better than the 41 Series

Lower power requirement than the 41 Series

Dual Differential Transceivers

BTK1A, BTL1A, and BTM1A

Data Sheet

October 1998

Pin Information

RO1

DI1

GND

DI2

RO2

BTK1A

16 RI1

15 RI1

14 DO1

13 DO1

12 DO2

11 DO2

10 RI2

RI2

RO1

DI1

GND

DI2

RO2

BTL1A

16 RI1

15 RI1

14 DO1

13 DO1

12 DO2

11 DO2

10 RI2

RI2

RO1

DI1

GND

DI2

RO2

BTM1A

16 RI1

15 RI1

14 DO1

13 DO1

12 DO2

11 DO2

10 RI2

RI2

12-2747aF

Figure 1. Differential Transceiver Logic Diagrams

Table 1. Enable Truth Table

Active

Disabled

Active

Disabled

Active

Disabled

Active

Disabled

Active

Disabled

Active

Disabled

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-

lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess

of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended

periods can adversely affect device reliability.

Parameter

Power Supply Voltage

Ambient Operating Temperature

Storage Temperature

Symbol

stg

Min

—

−40

−55

Max

6.5

125

150

Unit

°C

Lucent Technologies Inc.

Data Sheet

October 1998

Dual Differential Transceivers

BTK1A, BTL1A, and BTM1A

Electrical Characteristics

For variations in electrical characteristics over the temperature range, see Figures 10 through 12.

Table 2. Power Supply Current Characteristics

−40

°C to +125 °C, V

= 5 V

0.5 V.

Parameter

Power Supply Current (V

= 5.5 V):

All Outputs Disabled:

BTK1A

BTL1A, BTM1A

All Outputs Enabled:

BTK1A

BTL1A, BTM1A

Symbol

Min

Typ

Max

Unit



115

Third State

These drivers produce pseudo-ECL levels, and the third-state mode is different than the conventional TTL devices.

When a driver is placed in the third state, the bases of the output transistors are pulled low, bringing the outputs

below the active-high and active-low levels. This voltage is typically 2 V for most drivers. In the bidirectional bus

application, the driver of one device, which is in its third state, may be back driven by another driver on the bus

whose voltage in the low state is lower than the third-stated device. This could come about due to differences in the

drivers’ independent power supplies. In this case, the device in the third state will control the line, thus clamping the

line and reducing the signal swing. If the difference voltage between the independent power supplies and the

drivers is small, then this consideration can be ignored. In the typical case, the difference voltage can be as much

as 1 V without significantly affecting the amplitude of the driving signal.

Lucent Technologies Inc.

Dual Differential Transceivers

BTK1A, BTL1A, and BTM1A

Data Sheet

October 1998

Electrical Characteristics

(continued)

Table 3. Driver Voltage and Current Characteristics

For variations in output voltage over the temperature range, see Figures 10 and 11. T

−40

°C to +125 °C.

Parameter

Output Voltages:

Low*

High*:

Differential Voltage (V

– V

)

Third State, I

= –1.0 mA, V

= 4.5 V

Output Voltages (T

= 0 °C to 85 °C):

Low*

High*:

Differential Voltage (V

– V

)

Input Voltages:

Low, V

= 5.5 V:

Data Input

Enable Input

High, V

= 4.5 V

Clamp, V

= 4.5 V, I

= –5.0 mA

Short-circuit Output Current, V

= 5.5 V

Input Currents, V

= 5.5 V:

Low, V

= 0.4 V

High, V

= 2.7 V

Reverse, V

= 5.5 V

Output Resistors:

BTL1A and BTM1A

‡

Symbol

DIFF

IL†

IL‡

IH†

OS§

Min

– 1.4

−

1.8

0.65

—

– 1.4

−

1.5

0.8

—

2.0

—

–100

—

Typ

−

1.1

−

1.1

−

0.5

−

1.1

−

1.1

—

220

Max

−

0.65

−

0.8

1.4

−

0.2

−

0.8

−

0.8

1.4

0.8

0.7

—

−1.0

—

−400

100

—

Unit

µA

Ω

* Values are with terminations as per Figure 7.

† The input levels and difference voltage provide zero noise immunity and should be tested only in a static, noise-free environment.

‡ Test must be performed one lead at a time to prevent damage to the device.

Lucent Technologies Inc.

Data Sheet

October 1998

Dual Differential Transceivers

BTK1A, BTL1A, and BTM1A

Electrical Characteristics

(continued)

Table 4. Receiver Voltage and Current Characteristics

For variation in minimum V

and maximum V

over the temperature range, see Figure 10.

−40

°C to +125 °C.

Parameter

Output Voltages V

= 4.5 V:

Low, I

= 8.0 mA*

High, I

−400 µA

Enable Input Voltages:

Low, V

= 5.5 V

High, V

= 4.5 V

Clamp, V

= 4.5 V, I

= –5.0 mA

Minimum Differential Input Voltages, V

IH –

†

−0.80

V < V

< 7.2 V,

−1.2

V < V

< 6.8 V

Input Offset Voltage

Output Currents, V

= 5.5 V:

Off-state (high Z), V

= 0.4 V

Off-state (high Z), V

= 2.4 V

Short Circuit

Enable Input Currents, V

= 5.5 V:

Low, V

= 0.4 V

High, V

= 2.7 V

Reverse, V

= 5.5 V

Differential Input Currents, (BTK1A, BTM1A):

Low, V

= –1.2 V

High, V

= 7.2 V

Differential Input Impedance (BTM1A):

Connected Between RI and RI

Symbol

OFF

OZL

OZH

OS‡

Min

—

2.4

—

2.0

—



—

–25

—

Typ

—

0.1

0.03

—

110

Max

0.5

—

0.7

—

−1.0

0.20

0.05

–20

–100

–400

100

−1.0

1.0

—

Unit

µA

Ω

* The input levels and difference voltage provide zero noise immunity and should be tested only in a static, noise-free environment.

† Outputs of unused receivers assume a logic 1 level when the inputs are left open. (It is recommended that all unused positive inputs

be tied to the positive power supply. No external series resistor is required.)

‡ Test must be performed one lead at a time to prevent damage to the device.

Lucent Technologies Inc.

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