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PDF AK1291 Data sheet ( Hoja de datos )
| Número de pieza | AK1291 | |
| Descripción | IF Variable Gain Amplifier | |
| Fabricantes | AKM | |
| Logotipo |  |
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[AK1291]
AK1291
IF Variable Gain Amplifier with RSSI
1. OOvevrevriveiwew
AK1291 is a variable gain amplifier with a power detector. It’s operating frequency ranges from
100MHz to 300MHz. The gain control adopts an analog signal control, and the gain characteristic is dB
linear. The gain control range is -9dB to +21dB and a dynamic range is 30dB. AK1291 has single-ended
input and output, with impedance of 50 Ω. As a typical characteristic, NF is 7dB (at maximum gain) , and
IMD3 is 70dBc at output power of -15dBm ,at frequency of 165MHz.The power supply voltage is 4.75V
to 5.25V.
2. Feature
▪Operation Frequency Range
▪Gain variable range
▪Noise Figure
▪IMD3
▪Supply Voltage
▪Operating Temperature
▪Package
100MHz to 300MHz
-9dB to 21dB
7dB @max gain
70dBc @output power -15dBm
4.75V to 5.25V
-40°C to +85°C
24pin QFN0404
3. Block Diagram
VSS1
RFINP
RFINN
VSS6 COM
VSS5
IAVDD OAVD VSS4
Buffer
PVDD
GCON
VSS2
Detector
BIAS ENAB
DETOUT
VSS3
RFOUT
DETVDD
DETIN
Fig 1. Block Diagram
MS-E-1148-00
-1-
2012/11
http://www.Datasheet4U.com
1 page  
[AK1291]
7. Absolute Maximum Rating
項目
Table 2. Absolute Maximum rating
記号 Min.
Max.
単位
備考
Supply Voltage
VDD -0.3
5.5
V
Applied to [PVDD]、[IAVDD]、
[OAVDD]、[DETVDD] note1)
Ground Level
VSS
0
0
Analog input voltage VAIN -0.3 VDD+0.3
VDIN -0.3 VDD+0.3
RFINP/RFINN
Maximum input Level
Pmax
+10
Storage
Temperature
Tstg
-55
125
Note1) All voltage reference ground Level: 0V
Applied to [VSS1]、[VSS2] 、
V [VSS3] 、[VSS4] 、[VSS5] 、
[VSS6] and [EXPAD]
V
Applied to [RFINP]、[RFINN]、
[GCON] and [DETIN]
V Applied to [ENAB] note1)
dBm
°C
Exceeding these maximum ratings may result in damage to the AK1291. Normal operation is not
guaranteed at these extremes
8. Recommended operational condition
Table 3. Recommended operational condition
項目
記号
Min. Typ. Max. 単位
備考
Operating
Temperature
Ta
-40
85 °C
Supply
Voltage
VDD
4.75 5
5.25
Applied to [PVDD]、
V [IAVDD]、[OAVDD]、and
[DETVDD]
Each specification is applied in the power supply voltage and the operating temperature applied to
recommended operational condition.
MS-E-1148-00
-5-
2012/11
5 Page 
[AK1291]
12. Typical Performance
Unless otherwise noted, PVDD=OAVDD=IAVDD=DETVDD=5V, Ta=25℃, Freq=165MHz
1. Gain vs Analog Controll Voltage
Fig.4-1 Gain VS Control Voltage(fo=100MHz)
Fig.4-1 Gain VS Control Voltage(fo=165MHz)
Fig.4-1 Gain VS Control Voltage(fo=300MHz)
MS-E-1148-00
- 11 -
2012/11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AK1291.PDF ] | |
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