Sanyo LA2351M Specifications

Ordering number : ENN*6955

51801RM (OT) No. 6955-1/4

Overview

The LA2351M is a low-noise transceiver for automotive LANs.

Featrues

• Implements 5 Mbps and 7.5 Mbps automotive LANs when used in conjunction with an automotive LAN protocol IC (ARCNET controller TMC20040C Series device).

• Built-in adjustment-free low-pass filter.

• Provides low-noise data communication.

Functions

• Transmitter block — D/A converter (3-bit) — Low-pass filter (for EMI prevention) — Output driver

• Receiver block — Receiver amplifier — Noise removal low-pass filter (for the received

signal)

— Comparator (used for wave shaping)

Package Dimensions

unit: mm

3073C-MFP30SD

30 16

1.0

15.2

0.4

0.65

10.5

7.9

0.25

(0.6)

2.45max

0.1

(2.25)

Preliminary

SANYO: MFP30SD

[LA2351M]

LA2351M

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

7.5 Mbps Automotive LAN Transceiver

Monolithic Linear IC

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

No. 6955-2/4

LA2351M

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

max With no input signal 7.0 V

Ta ≤ 85°C

Allowable power dissipation Pd max Mounted on a printed circuit board 500 mW

(46.2

× 25.7 × 1.6 mm3, glass epoxy) Operating temperature Topr –40 to +85 °C Storage temperature Tstg –55 to +150 °C

Specifications

Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions

Ratings

Unit

min typ max

Recommended supply voltage V

5.0 V

Operating supply voltage range V

CCOP

4.75 5.25 V

D/A converter input

Low-level input 0 0.5 V

High-level input 2.4 3.3 V

Transmission control input

Vol Low-level input 0.5 V

Voh High-level input 2.4 V Low-pass filter input amplitude Vlpfi 0.45 0.55 Vpp Output driver input amplitude Vdrvi 0.45 0.55 Vpp Receiver amplifier input signal amplitude

Vrxi 15 75 mVpp

range (differential) Comparator input voltage range Vcpdci 0 3.5 V Comparator input signal amplitude Vcpi 0.8 1.2 Vpp

Recommended Operating Conditions at Ta = 25°C

Parameter Symbol Conditions

Ratings

Unit

min typ max

Quiescent current Icco When not transmitting 50 70 mA D/A converter output level Vdao

The deviation with respect to 0.5 V for

–1 0 1 dB

(111) - (001).

Low-pass filter

Output attenuation Vlpfo(9M)

The attenuation of a 9 MHz signal with

2.5 3 3.5 dB

respect to a 1 MHz signal.

Insertion loss Vlpfo(1M) f = 1 MHz –1 0 1 dB

Output driver

Output attenuation Vtxo(15M)

The attenuation of a 15 MHz signal with

0 2 3

respect to a 1MHz signal.

Differential amplification Vtxo(1M) f = 1 MHz –1.5 0 1.5

Receiver amplifier + noise rejection low-pass filter

Amplification Vnfo(1M) f = 1 MHz 25 dB Frequency characteristics Vnfo(15M)

The Frequency characteristics of a 15 MHz

–3 dB

signal with respect to a 1 MHz signal.

Comparator

Low-level output amplitude Vcpdl 0.2 0.4 0.6 V High-level output amplitude Vcpdh 3.9 4.2 4.3 V

Operating Characteristics at Ta = 25°C, VCC= 5 V

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