MC13821 datasheet(7/42 Pages) FREESCALE

Part #	MC13821

Description	Low Noise Amplifier with Bypass Switch

PDF	42 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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Electrical Specifications

MC13821 Data Sheet: Technical Data, Rev. 1.5

Freescale Semiconductor

Figure 2. Maximum Stable/Available Gain and Forward Insertion Gain vs. Frequency

(Rbias = 2 k

Ω)

Table 5. Truth Table

Pin Function

Pin Name

Enable

Disable

Low Gain

High Gain

Low Gain

High Gain

Circuit Bias VCC1

VCC1

1111

Toggles Gain Mode (Active or

Bypass)

GAIN

0101

Toggles LNA On/Off

ENABLE

1100

LNA Bias VCC3

LNA Out

1111

NOTES: 1. Logic state "1" equals VCC voltage. Logic state of "0" equals ground potential.

2. VCC3 is inductively coupled to LNA OUT pin

3. Minimum logic state “1” for enable and gain pins is 1.25 V.

4. Minimum logic state “0” for enable and gain pins is 0.8 V.

Maximum Stable/Available Gain and

Forward Insertion Gain vs. Frequency

Rbias is 2 kohm

0.5

1.5

2.5

3.5

4.5

5.5

f, Frequency (GHz)

MSG

MAG

|S21|2

MC13821 Datasheet(PDF) 7 Page - Freescale Semiconductor, Inc

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