HFA3661 Просмотр технического описания (PDF) - Intersil
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HFA3661 Datasheet PDF : 5 Pages
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HFA3661
Typical Application Diagram
PRISM® FULL DUPLEX CHIP SET
HFA3424/21
HFA3661
HFA3761 (File #4236)
(File #4131)
(File #4240)
FILTER
D
U
LNA
BPF
LNA
RF/IF
IF AGC
QMODEM
LPF
P
CONVERTER
LPF
L
E
RF LO1
X
E
R
HFA3524
(File #4062)
SYNTHESIZER
IF LO1
HFA3524
(File #4062)
HFA3925
(File #4132)
PA
BPF
SYNTHESIZER
RF LO2
AGC
IF/RF
CONVERTER
HFA3663 (File #4241)
HFA3664 (File #4242)
IF LO2
AGC
HFA3763
(File #4237)
LPF
QMODEM
LPF
A/D
BASEBAND
D/A
OPTIONAL WHEN IN
ANALOG MODE
PRISM FULL DUPLEX RADIO
CHIP SET, FILE #4238
Pin Descriptions
PIN NO.
NAME
1
LNA_VCC
2
GND
3
LNA_OUT
4
GND
5
LNA_VCC
6
GND
7
LNA_IN
8
GND
9
RXM_VCC
10
RX_PE
11
BYP_CAP2
12
IF_OUT
13
BYP_CAP1
14
GND
15
LO_IN
16
LO_BY
17
RXM_VCC
18
RXM_RF
19
GND
20
LNA_PD
DESCRIPTION
Low Noise Amplifier Positive Power Supply (1 of 2)
Low Noise Amplifier Ground
Low Noise Amplifier RF Output
Low Noise Amplifier Ground
Low Noise Amplifier Positive Power Supply (2 of 2)
Low Noise Amplifier Ground
Low Noise Amplifier RF Input
Low Noise Amplifier Ground
Receive Mixer Positive Power Supply
Receive Channel Power Enable (LNA, Mixer, and IF Buffer)
Bypass Capacitor
Receive Mixer Buffered IF Output
Bypass Capacitor
IF Buffer Ground
Receive Mixer Local Oscillator Input
Receive Mixer Local Oscillator Bypass
Receive Mixer Positive Power Supply
Receive Mixer RF Input
Receive Mixer Ground
Low Noise Amplifier Power Down (Bypass mode used for RF Signal Attenuation)
4-2
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