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Receiver IC. U4065B Datasheet

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Receiver IC. U4065B Datasheet






U4065B IC. Datasheet pdf. Equivalent




U4065B IC. Datasheet pdf. Equivalent





Part

U4065B

Description

FM Receiver IC



Feature


Features • On-chip Control Functions a re Available for System Gain Adjust (dB Linear versus DC Current) • Low Noi se LO Design • ESD Protected Benefit s • All Front-end Functions of a High -performance FM Receiver Except the RF Preamplifier are Integrated FM Receive r IC U4065B • Improved Dynamic Range by High Current Double-balanced Mixer Design and a New AGC Concept.
Manufacture

Atmel

Datasheet
Download U4065B Datasheet


Atmel U4065B

U4065B; ion with 3 Loops On-chip • Improved B locking and Intermod Behavior Due to a Unique “Interference” Sensor Contro lling the AGC • Easy Cascading of 3 IF Filters (Ceramic) Enabled by Two On- chip IF Preamplifiers Description The IC U4065B is a bipolar integrated FM fr ont-end circuit. It contains a mixer, a n oscillator, two IF preamplifiers and an unique interference sen.


Atmel U4065B

sor. The device is designed for high-per formance car radio and home receiver ap plications. Rev. 4807A–AUDR–05/04 Figure 1. Block Diagram ANT VS IF tank IF BPF IF gain adjust IF BPF IF output IF BPF RF tank 16 14 PIN ATT Mixer IF 1 IF 2 2 19 18 20 21 4 7 5 3 VS RF RF tank NC 12 Interference mixer AGC wid e band and IF 13 AGC adjust (wide band ) LO tank 23 24 Loca.


Atmel U4065B

l oscillator IF and detector VREF = 4 V Voltage regulator 17 22 1 11 Inter ference IF BPF 9 8 10 6 + VS LO ou tput VTUNE VS AGC level 2 U4065B 480 7A–AUDR–05/04 U4065B Pin Configura tion Figure 2. Pinning SO24 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 LOB LOE GND5 IF1IN GND4 MIXOUT2 MIXOUT1 VREF MIXIN2 MIXIN1 LOBUFF GND1 IF2OUT GAINIF1 IF2IN .

Part

U4065B

Description

FM Receiver IC



Feature


Features • On-chip Control Functions a re Available for System Gain Adjust (dB Linear versus DC Current) • Low Noi se LO Design • ESD Protected Benefit s • All Front-end Functions of a High -performance FM Receiver Except the RF Preamplifier are Integrated FM Receive r IC U4065B • Improved Dynamic Range by High Current Double-balanced Mixer Design and a New AGC Concept.
Manufacture

Atmel

Datasheet
Download U4065B Datasheet




 U4065B
Features
On-chip Control Functions are Available for System Gain Adjust
(dB Linear versus DC Current)
Low Noise LO Design
ESD Protected
Benefits
All Front-end Functions of a High-performance FM Receiver Except the RF
Preamplifier are Integrated
Improved Dynamic Range by High Current Double-balanced Mixer Design and a New
AGC Conception with 3 Loops On-chip
Improved Blocking and Intermod Behavior Due to a Unique “Interference” Sensor
Controlling the AGC
Easy Cascading of 3 IF Filters (Ceramic) Enabled by Two On-chip IF Preamplifiers
FM Receiver IC
U4065B
Description
The IC U4065B is a bipolar integrated FM front-end circuit. It contains a mixer, an
oscillator, two IF preamplifiers and an unique interference sensor. The device is
designed for high-performance car radio and home receiver applications.
Rev. 4807A–AUDR–05/04




 U4065B
Figure 1. Block Diagram
ANT
RF tank
PIN
ATT
VS
IF tank
19 18
16
14
Mixer
IF BPF
IF gain adjust
IF BPF
20 21 4 7
IF 1
VS
53
IF output
IF BPF
2
IF 2
RF tank
VTUNE
RF
NC 12
Interference
mixer
LO tank
23
Local
24 oscillator
AGC
wide band
and IF
IF and
detector
22 1
LO output
11 9
Interference
IF BPF
8 10
13
AGC adjust
(wide band)
Voltage
regulator
17
6
+
VS
VREF = 4 V
AGC level
VS
2 U4065B
4807A–AUDR–05/04




 U4065B
Pin Configuration
Figure 2. Pinning SO24
LOBUFF 1
GND1 2
IF2OUT 3
GAINIF1 4
IF2IN 5
VS 6
IF1OUT 7
GND2 8
IMIFIN 9
AGCOUT 10
IMMIXOUT 11
NC 12
24 LOB
23 LOE
22 GND5
21 IF1IN
20 GND4
19 MIXOUT2
18 MIXOUT1
17 VREF
16 MIXIN2
15 MIXIN1
14 GND3
13 AGCWB
U4065B
4807A–AUDR–05/04
3



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