MT88L70

Data Sheet

6

Zarlink Semiconductor Inc.

Differential Input Configuration

The input arrangement of the MT88L70 provides a differential-input operational amplifier as well as a bias source

amp output (GS) for adjustment of gain. In a single-ended configuration, the input pins are connected as shown in

Figure 5 - Differential Input Configuration

Crystal Oscillator

The internal clock circuit is completed with the addition of an external 3.579545 MHz crystal and is connected as

shown in Figure 6 (Single-ended Input Configuration).

IN+

IN-

GS

+

-

MT88L70

DIFFERNTIAL INPUT AMPLIFIER

R5

R1

INPUT IMPEDANCE

1

ωC

2

All resistors are

± 1% tolerance.

All capacitors are

± 5% tolerance.