u4065b ATMEL Corporation, u4065b Datasheet
u4065b
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u4065b Summary of contents
Page 1
... FM Receiver Description The IC U4065B is a bipolar integrated FM-frontend circuit. It contains a mixer, an oscillator, two IF preamplifiers and an unique interference sensor. The Features D All frontend functions of a high performance FM- receiver, except the RF preamplifier, are integrated D Improved dynamic range by high current double balanced mixer design and a new AGC conception ...
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... U4065B Pin Description Pin Symbol Function 1 LOBUFF Buffered local oscillator output 2 GND1 Ground of the second IF ampli- fier 3 IF2OUT Output of the second IF ampli- fier 4 GAINIF1 Gain control of the first IF amplifier 5 IF2IN Input of the second IF amplifier 6 VS Supply voltage 7 IF1OUT Output of the first IF amplifier ...
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... IF-signal at this pin will cause current at the AGC output. Therefore pay attention when connecting the standard ce- ramic filter used between IMOUT and this pin. The reference point of the filter has to be free of any ac signal. Please avoid dc current at this pin. U4065B V S ESD 330 ...
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... The internal temperature compensated reference voltage is 3 used as bias voltage for most blocks, so the electrical characteristics of the U4065B are widely inde- pendent of the supply voltage. The internal output resistance of the reference voltage is less than avoid internal coupling across this pin external capacitors are required ...
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... The tank of the local oscillator is connected at pin LOB. The ground pin of this tank is to connect to the pin GND5. GND5 is the chip internal ground into pin 24 of the local oscillator. The resonant resistance of the tank should be about 250 W. Minimum Q of the unloaded tank is 50. U4065B 23 ESD 94 8785 24 ...
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... This contradiction could not be over- come in the past. With the new U4065B IC, a unique access to this problem appears. This product has an interference sensor on chip. Thus an input signal attenuation is only performed, if the interfering signals do generate an intermod signal inside the desired channel ...
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... Desired Frequency frequency Figure 2 The correct AGC threshold of the U4065B provides optimum reception 94 8822 Level Desired ...
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... U4065B Absolute Maximum Ratings Reference point is ground (Pins 2, 8, 14, 20 and 22) Parameters Supply voltage Power dissipation amb Junction temperature Ambient temperature range Storage temperature range Electrostatic handling: Human body model (HBM), all I/O pins tested against the supply pins. Thermal Resistance ...
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... C oIF1 G IF2 = 200 W NF IF2 V comp iIF2 C iIF2 R oIF2 C oIF2 V ref I ref r d17 psrr V thIF2 V thIFD V thWB1 V thWB2 U4065B Min. Typ. Max. Unit 140 –2 +0.045 dB MHz W 270 330 400 5 pF ...
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... U4065B Test Circuit Gain 140mA RG21 4.7n I18, RL18, 4. RG15, 4. Rg24 24 23 47p fosc Losc Cosc 33p vLOBUFF fLOBUFF 94 8829 10 (23 ...
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... 9411 amb Oscillator swing versus temperature Rev. A4, 06-Mar-01 R g24 24 Local 23 oscillator Oscillator output buffer 94 9410 [ 110 MHz 160 mV, R OSC OSC24 70 90 U4065B OSC1 OSC 520 =220 g24 L 11 (23) ...
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... U4065B Mixer ^ 160 mV 110.7 MHz, v OSC OSC24 50 IL1 2vi 1 2 RF1 f RF1 5 2vi 6 RF2 f RF2 R g24 47p 22p f OSC Conversion power gain log (vo C IL1, IL2 insertion loss of the RF transformers 120 Conversion characteristic 100 3rd order IM-characteristic ...
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... IL1 (dB) + IL2 (dB IL1, IL2 = insertion loss of the RF transformers Rev. A4, 06-Mar-01 11.0 10.7 10.4 10.1 9.8 9.5 9.2 8.9 8.6 8.3 8 –30 94 9415 Current of the mixer stage versus temperature IF7 amb 4 V(PIN4) I4 U4065B – amb 200 IL2 9416 13 (23) ...
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... U4065B – ( 9417 4 Power gain of the first IF amplifier versus I4 3.8 3.6 3 3.2 3 – 2.6 2.4 2.2 2 9419 4 V (Pin 4) versus I 14 (23 - –5 –10 100 ...
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... Rev. A4, 06-Mar- Î Î T amb Î Î 9422 Power gain of the second IF amplifier versus frequency U4065B V S 330 IF3 IF = 200 IL2 9420 100 f ( MHz ) ...
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... U4065B 87.0 86.8 86.6 86.4 86.2 86.0 –30 – 9423 amb AGC threshold (I10 = 1 mA) of the second IF amplifier versus temperature Interference Sensor (Mixer) 50 IL1 2vi RF1 g15/16 RF1 =200 2vi 5 6 RF2 fi RF2 Test conditions for characteristic 100 MHz 89.3 MHz ...
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... IL1=0.7dB Rev. A4, 06-Mar-01 100 Conversion 50 characteristic 40 3rd order 100 70 94 9428 Conversion characteristic of the interference sensor – U4065B – 100 105 110 115 vi ( dBmV ) RF (mixer) 10 I10 T amb 94 9429 17 (23 ...
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... U4065B AGC Thresholds 45.0 44.5 44.0 43.5 43.0 42.5 42.0 41.5 41.0 –30–20– 9430 amb AGC threshold of the interference IF amplifier versus temperature 100 U13 = I13 = –30–20– 9432 amb ...
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... Characteristic of the wideband AGC (V13 = 0 V) Rev. A4, 06-Mar-01 10000.00 1000.00 100.00 10.00 – 9435 Characteristic of the wideband AGC – 115 120 U4065B – 100 105 110 115 120 vi ( dBmV ) RF (I13 = (23) ...
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... U4065B DC Characteristics I18, I19 6.0 6.5 7.0 7.5 8.0 8 9436 S Supply currents versus supply voltage I18 + I19 –30 – 9437 amb Supply currents versus temperature 20 (23) 3.88 3.87 3.86 3.85 3.84 3.83 3.82 3.81 9.0 9.5 10.0 –30–20– ...
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... C9 Vs=8.5V C21 1n R19 R16 15 10k OSC L6 C18 R17 3 4 470 D5 100p 820 C22 CF3 C17 6.8p C20 C23 C26 150n 22p 47p 4.7p 24 U4065B 1 CF2 R20 22k R18 R15 330 22 100k C24 R21 C19 CF4 1n 22n Gain adj. IF OUT LO OUT ...
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... BC858 D1 S392D D2 S391D D3 BB804 L1 11 turns, 0.35 mm wire diameter (approx. 220 nH) 2.2 mH (high Q type TOKO 7KL–type # 600ENF-7251x Ordering and Package Information Extended type number U4065B-AFL U4065B-AFLG3 Package Information Package SO24 Dimensions in mm 15.55 15.30 0.4 1.27 13. (23) Item CF1 CF2 ...
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... Data sheets can also be retrieved from the Internet: Atmel Germany GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423 Rev. A4, 06-Mar-01 U4065B http://www.atmel–wm.com 23 (23) ...