AN7204 Front-end Radio, Radio Cassette Recorder Description
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AN7204
AN7204
Front-end Radio, Radio Cassette Recorder
Description
AN7204 monolithic front-end synthesizer which most suitable operation radio/radio cassette recorder. configure high sensitivity synthesizer tuner combination with AM-FM.IF (AN7238) available DTS.
Features
synthesizer buffer built-in
Good Intermodulation characteristics
High receiving sensitivity
band receiving possible (Max. 220MHz)
Operating supply voltage range: 2.7V
Unit
9-Lead Plastic Package (9-SIP)
Block Diagram
Amplifier
Mixer
Buffer
Panasonic
bS32flS2
This Material Copyrighted Respective Manufacturer
AN7204
Absolute Maximum Ratings
Item Symbol Rating Unit
Supply Voltage
Supply Current
Power Dissipation
Operating Ambient Temperature Topr -20-+75
Storage Temperature Tstg -55-+150
Operating Supply Voltage Range: 2.7V 7.0V
Electrical Characteristics (Vcc=5V,
Item Symbol Condition min. typ. max. Unit
Total Circuit Current Ilot Without signal
Output Voltage 55dBn, 106MHz dBji
Buffer Output Voltage Local Oscillation vbuf 5pF,f0sc= 116.7MHz
5pF,fOSc 212MHz
Oscillation Stop Level input, fosc 110.7MHz
"slop input, fosc 210.7MHz
Application Circuit
Vose
(IF)
Varying Voltage
Band pass filter: SOSHIN DENKI BPWB
b132B52 Panasonic
This Material Copyrighted Respective Manufacturer
AN7204
Coil Specifications
Symbol Use, Freq. Type Maker Connection Diagram Number Turns Value/ Value Unloaded
Quad Coil 10.7MHz IFT-41K9 MITSUMI HOpF
RFCoil INDUSTRY Space Winding 0.102nH f=25.2MHz f=25.2MHz
Coil INDUSTRY Space Winding 0.086(iH f=25.2MHz f=25.2MHz
Descriptions
Name Voltage Impedance Equivalent Circuit Waveform
1.1V Several WIAAA; Signal
Pass-con. 2.7kfl CD-dT 4.7k
1.1V High v3>v4 Signal
Mixer 1.8V Several v4=v3 Signal
Mixer High 10.7MHz (vary with signal)
Panasonic
This Material Copyrighted Respective Manufacturer
AN7204
Descriptions (Continue)
Name Voltage Impedance Equivalent Circuit Waveform
Buffer 3.6V Several 0.4V fose
4.9V T10P 0.6Vp.p MWMr fose
Signal levels proportion size signals which input antenna.
Characteristics Curve
Itot
012345678
Supply Voltage
Vose
g-100
-200
012345678 Supply Voltage
Af-Vcc
Supply Voltage
0013050
Panasonic
This Material Copyrighted Respective Manufacturer
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