Overview

The LV2700V provides the reception and transmission

functions necessary for half-duplex communication in

spread-spectrum communications systems.

Features

• Frequency conversion is not required.

(direct signal processing at 236 MHz)

• Wide spread-spectrum bandwidth (20 MHz)

• Sanyo developed system for PN code synchronization

• Allows direct primary modulation (FSK and FM) by

data and analog signals. (Maximum data rate: 150 kbps)

• Low-voltage operation (2.7 to 5.5 V)

• Low power dissipation (36 mW in RX mode)

Functions

[TX Block]

• Spectrum spreader

• Crystal oscillator circuit

• PN code generator (M sequence)

• M sequence code length (31 or 63 chips) and tap

switching

• 9.83 MHz PLL

• Band limiting filter (LPF) for data transmission

[RX Block]

• Spectrum despreader

• Synchronization supplementation and protection

• 236-MHz PLL

• PN code generator (M sequence)

• M sequence code length (31 or 63 chips) and tap

switching

• FSK (FM) demodulator

• Lock detector

Package Dimensions

Bi-CMOS LSI

Ordering number : EN *5651

63097HA(OT) No. 5651-1/9

Preliminary

SANYO: SSOP30

[LV2700V]

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

Spread Spectrum Communications IC

LV2700V

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

6V

Allowable power dissipation

Pd max

150

mW

Operating temperature

Topr

–20 to +75

°C

Storage temperature

Tstg

–40 to +125

°C

Specifications

Maximum Ratings at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Recommended supply voltage

3V

Allowable voltage range

2.7 to 5.5

V

Operating Conditions at Ta = 25°C