U4065B-AFL TEMIC [TEMIC Semiconductors], U4065B-AFL Datasheet
U4065B-AFL
Related parts for U4065B-AFL
U4065B-AFL 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 ...
Page 2
... 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 ...
Page 3
... 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 W . The parallel input ESD 330 ...
Page 4
... Reference voltage: 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 10 avoid internal coupling across this pin external capacitors ...
Page 5
... 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 W about 250 . Minimum Q of the unloaded tank is 50. U4065B 23 ESD ESD 94 8786 5 (23) ...
Page 6
... 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 ...
Page 7
... Desired Frequency frequency Figure 2 The correct AGC threshold of the U4065B provides optimum reception 94 8822 Level Desired signal ...
Page 8
... 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 ...
Page 9
... R 270 iIF2 C iIF2 R oIF2 C oIF2 V 3.7 ref I 5 ref r d17 psrr Pin 10 thIF2 V 42 thIFD V 95 thWB1 V 85 thWB2 U4065B Typ. Max. Unit 140 2 2 +0.045 dB MHz W 330 400 330 400 ...
Page 10
... U4065B Test Circuit Gain 140 RG21 4.7n I18, RL18, 4. RG15, 4. Rg24 24 23 47p fosc Losc Cosc 33p vLOBUFF fLOBUFF 94 8829 10 (23 ...
Page 11
... 9411 amb Oscillator swing versus temperature Rev. A3, 15-Oct-98 R g24 24 Local 23 oscillator Oscillator output buffer 94 9410 [ 110 MHz 160 mV, R OSC OSC24 g24 70 90 U4065B OSC1 OSC 520 W =220 , (23) ...
Page 12
... U4065B Mixer ^ f = 110.7 MHz, v 160 mV, f 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 ...
Page 13
... IL1 (dB) + IL2 (dB IL1, IL2 = insertion loss of the RF transformers Rev. A3, 15-Oct-98 11.0 10.7 10.4 10.1 9.8 9.5 9.2 8.9 8.6 8.3 8 –30 –10 94 9415 Current of the mixer stage versus temperature IF7 200 L7 T amb 4 V(PIN4) I4 U4065B amb IL2 9416 13 (23) ...
Page 14
... U4065B - – 100 9417 4 Power gain of the first IF amplifier versus I4 3.8 3.6 3 3.2 3 – 2.6 2.4 2 100 9419 4 V (Pin 4) versus (23 –5 – ...
Page 15
... Rev. A3, 15-Oct- 330 200 L3 T Î Î Î amb 9422 Power gain of the second IF amplifier versus frequency U4065B IF3 IF IL2 9420 100 f ( MHz ) 15 (23) ...
Page 16
... U4065B 87.0 86.8 86.6 86.4 86.2 86.0 –30 – 9423 amb m AGC threshold (I10 = 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 vo versus 100 MHz 89.3 MHz, vi ...
Page 17
... IF 2vi IF IL1=0.7dB Rev. A3, 15-Oct-98 100 100 9428 Conversion characteristic of the interference sensor – U4065B – 100 105 110 115 (mixer I10 T amb 94 9429 17 (23) ...
Page 18
... 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 = I13 = –30–20– ...
Page 19
... 9434 RF Characteristic of the wideband AGC (V13 = 0 V) Rev. A3, 15-Oct-98 10000.00 1000.00 100.00 10.00 – 9435 Characteristic of the wideband AGC 115 120 U4065B – 100 105 110 115 120 (I13 = (23) ...
Page 20
... U4065B DC Characteristics I18, I19 6.5 7.0 7.5 8.0 8.5 9 9436 S Supply currents versus supply voltage I18 + I19 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 9.5 10.0 –30–20– ...
Page 21
... R6 R11 R14 47k C18 160k 56k 100p 10p C13 L4 R5 C17 22 1p5 C16 C14 C10 150n 1n 6.8p 13 BFR93A U4065B C11 12 L3 10n CF1 CF2 Q2 BC858 R12 330k C15 R9 100n 220 C9 Vs=8.5V C21 1n R19 R16 10k OSC ...
Page 22
... S392D D2 S391D D3 BB804 L1 11 turns, 0.35 mm wire diameter (approx. 220 nH 2.2 H (high Q type) L3 TOKO 7KL–type # 600ENF-7251x Ordering and Package Information Extended type number U4065B-AFL U4065B-AFLG3 Dimensions in mm Package SO24 Dimensions in mm 15.55 15.30 0.4 1.27 13. (23) Item CF1 CF2 Package ...
Page 23
... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2594, Fax number 7131 67 2423 Rev. A3, 15-Oct-98 unauthorized use. U4065B 23 (23) ...