92706 / O2505 MS OT B8-6337 No.8386-1/7

http://onsemi.com

Semiconductor Components Industries, LLC, 2013

July, 2013

LA7784

Overview

The LA7784 is a downconverter IC for digital CATV. It accepts RF input frequencies from 50 to 150MHz and supports

the DOCSIS (USA) and Euro-DOCSIS (Europe) standards.

Features

• RF Mixer.

• Attenuation control for RF Mixer.

• Driver for SAW filter.

• IF AGC amplifier.

• IF Driver amplifier for ADC.

Specifications

Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

Pin 8, 14, 19, 20, 21, 22, 26, 27

6.0

V

Circuit voltages

V max

Pin 9

VCC

V

Circuit current

I12, 13

Pin 12, 13 sink current

2

V

Allowable power dissipation

P

d max

Ta

≤70°C

900*

mA

Operating temperature range

T

opr

-20 to +70

mW

Storage temperature range

T

stg

-55 to +150

°C

* On the board (114.3

×76.1×1.6mm)

Operating Conditions at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Recommended supply voltage

VCC

Pin 8, 14, 19, 20, 21, 22, 26, 27

5.0

V

Operating supply voltage range

VCC op

Pin 8, 14, 19, 20, 21, 22, 26, 27

4.5 to 5.5

V

Ordering number : ENN8386

Monolithic Linear IC

Downconverter IC

for Digital CATV

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.