MC13821FCR2 Freescale Semiconductor, MC13821FCR2 Datasheet - Page 7

• Manufacturer Part Number: MC13821FCR2
• Description: IC AMP LNA BYPASS SWITCH 12-QFN
• Manufacturer: Freescale Semiconductor

Specifications of MC13821FCR2

• Current - Supply: 2.8mA
• Frequency: 1GHz ~ 2.4GHz
• Gain: 16.5dB
• Noise Figure: 1.45dB
• P1db: -10dBm
• Package / Case: 12-QFN
• Rf Type: ISM, GPS
• Test Frequency: 1.575GHz
• Voltage - Supply: 2.75V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Freescale Semiconductor
Circuit Bias VCC1
Toggles Gain Mode (Active or
Bypass)
Toggles LNA On/Off
LNA Bias VCC3
NOTES: 1. Logic state "1" equals V
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.
Pin Function
Figure 2. Maximum Stable/Available Gain and Forward Insertion Gain vs. Frequency
CC
voltage. Logic state of "0" equals ground potential.
30
25
20
15
10
5
0
0.5
Pin Name
ENABLE
LNA Out
MC13821 Data Sheet: Technical Data, Rev. 1.5
VCC1
GAIN
1.5
Forward Insertion Gain vs. Frequency
|S21|
Maximum Stable/Available Gain and
MSG
Table 5. Truth Table
2
(Rbias = 2 kΩ)
Low Gain
Rbias is 2 kohm
1
0
1
1
2.5
f, Frequency (GHz)
Enable
3.5
High Gain
1
1
1
1
MAG
4.5
Low Gain
5.5
1
0
0
1
Electrical Specifications
Disable
High Gain
1
1
0
1
7