ML3371 datasheet(8/19 Pages) LANSDALE

tên linh kiện	ML3371

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Issue A

LANSDALE Semiconductor, Inc.

ML3371, ML3372

ML3371 PIN FUNCTION DESCRIPTION (continued)

OPERATING CONDITIONS VCC = 4.0 Vdc, RFIn = 100 µV, fmod = 1.0 kHz, fdev = 3.0 kHz. ML3371 at f RF = 10.7 MHz (see Figure 11).

Waveform

Description

Internal Equivalent

Circuit

Symbol

RSSI

RSSIOut

1.8 k

Bias

VCC

RSSI Output. Referred to as the

Received Signal Strength Indicator or

RSSI. The chip sources up to 60

µA

over the linear 60 dB range. This pin

may be used many ways, such as:

AGC, meter drive and carrier triggered

squelch circuit.

MUTE

40 k

Mute or

SqOut

Mute Output. See discussion in

application text.

Gnd

Ground. The ground area should be

continuous and unbroken. In a two–

sided layout, the component side has

the ground plane. In a one–sided

layout, the ground plane fills around

the traces on the circuit side of the

board and is not interrupted.

MIXIn

MixerIn

VCC

3.3 k

10 k

Mixer Input –

Series Input Impedance:

@ 10 MHz: 309 – j33

Ω

@ 45 MHz: 200 – j13

Ω

*Other pins are the same as pins in MC3371.

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