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| U4459B IF Amplifier for Cable DVB Processing Description The U4459B is an integrated bipolar circuit suitable for the IF processing in cable-DVB receiver (DVB = Digital Video Broadcasting) and cable network application. The circuit contains a wideband IF amplifier, mixer stage, gain control for the IF amplifier and a tuner-AGC (Automatic Gain Control) with adjustable take over point for an additional external preamplifier (tuner). Features D Input frequency range 30 to 50 MHz (1st IF) D Wideband IF amplifier with high linearity D Gain control of the IF amplifier by external dc voltage D High output level of mixed signal (2nd IF) (up to 2.4 V, peak-to-peak value) D Tuner-AGC with adjustable take over point for a preamplifier D Supply voltage range 6.8 to 13.5 V Package: DIP16 D Mixer stage with local oscillator input (symmetrical or unsymmetrical) LO in 8 IF1 in 1 IF amp LO in 9 95 9636 6 16 IF1 in Mixer IF2 out IF gain control 3 ITun Bandgap 14 VS 2 VTun 5 VGain 13 BG 4,15 GND Figure 1. Block diagram TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 1 (7) U4459B Pin Description IF1in 1 Vtun 2 16 IF1in 15 GND 14 VS 13 BG 12 NC 11 NC 10 NC 9 95 10696 Itun 3 GND 4 Vgain 5 IF2out NC 6 7 LOin 8 LOin Figure 2. Circuit Description The U4459B consists of a controllable 3-stage wideband amplifier, a mixer, IF-AGC and a tuner-AGC with adjustable take over point. The IF1 input voltage is applied at Pin 1 to 16 and it is fed via a 3-stage gain controlled wideband amplifier to the mixer. The wideband amplifier with high linearity is gain controlled by external dc voltage. The oscillator voltage (Pin 8-9) for the mixer stage can be applied symmetrically as well as unsymmetrically. The mixed signal (2nd IF) is fed through a buffer amplifier to the output Pin 6. The control voltage can also be used for an additional external preamplifier in the tuner. This tuner-AGC with adjustable take over point protects the IF1 input against overload. Absolute Maximum Ratings Reference point Pin 4, unless otherwise specified Parameters Supply voltage Supply current Power dissipation Vs = 13.5 V Junction temperature Storage temperature Pin 14 Pin 14 Pin 14 2 (7) AAAAAAAAAAA A A AAAAAAAAAAAAAAAA AA AAAAAAAAAAA A A AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AAAAAA AAAAAAAAAAAAAAAA AA AAAAAAAAAAA A AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AAAAAA AAAAAAAAAAA A AAAAAAAAAAAAAAAA AA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAA AAAAAA AAAAAAAAAAAAAAAA AA A AAAAAAAAAAAAAAAA AAAAAA A 14 15 16 VS GND IF1in IF1 input Take over point of tuner-AGC Tuner-AGC output current Ground IF gain control input IF2 output Not connected Local oscillator input Local oscillator input Not connected Not connected Not connected Bandgap reference (internal use only) Supply voltage Ground IF1 input Symbol Vs Is P Tj Tstg Value 13.5 55 750 Unit V mA mW C C +125 -25 to +125 TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 Symbol IF1in Vtun Itun GND Vgain IF2out NC LOin LOin NC NC NC BG Function A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AA A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAA A A A AA AA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAA A AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA AA AAAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAA A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAA AAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAA A A A A AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAA AAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAA AAAAAA A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAAAAAA AAAA A A A A AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAAA AAAA A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A A A A A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAA A A A A AAAAA A A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA *) Vs = +8 V, Tamb = +25C; reference point Pin 4, unless otherwise specified AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA A AA AAAAA A AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA AA AAAAA A AA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAA AA Thermal Resistance Operating Range Parameters Junction ambient when soldered to PCB Supply voltage range Ambient temperature Parameters Pin 14 Symbol RthJA Symbol Vs Tamb Value 6.8 to 13.5 -10 to +80 Value 60 TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 Electrical Characteristics Parameters DC supply Supply voltage Supply current IF1 input, 1st IF Input sensitivity (RMS value) IF1 input frequency range *) Input impedance Input capacitance IF gain control input IF gain control range Local oscillator input Input voltage (RMS value) Input frequency range *) IF2 output, 2nd IF DC output voltage Upper limiting level Lower limiting level IF2 signal bandwidth (- 3 dB) *) Residual carrier, fundamental wave Output current -source -sink Tuner-AGC Available AGC current Not measured during production Output voltage 2 Vpp V5 = 3 V Pin 5 Output voltage 2 Vpp Pin 8-9 Pin 1-16 Output voltage 2 Vpp Test Conditions / Pins Pin 14 Pin 6 Symbol VDC Vlim Vlim B VIF1 vLO fLO vres Itun Iout fin Rin Cin VS IS Gv Min. 2.0 1.5 6.8 12 30 60 30 Typ. 100 4.0 3.1 4.5 1.7 1.2 2 8.0 45 66 80 U4459B Max. 13.5 55 120 6.0 5.0 2.5 20 50 50 mVRMS MHz Unit K/W VRMS Unit V C V V V MHz MHz kW pF Unit mA mA mV V mA dB 3 (7) U4459B +VS 22 mH 10 mF 1:2 IF1 input 16 10 nF 15 14 13 12 11 10 9 10 nF 10 nF 4.7 mF 10 nF 2:1 LO input 200 W U4459B 1 2 3 4 5 6 7 8 200 W 10 kW *) 10 nF Tuner AGC take over 95 9637 95 9637 Tuner AGC IF gain control IF2 out *) depends on application 1 mF to 10 mF Figure 3. Test circuit +VS 22 mH 10 mF 10 nF 10 nF 16 15 14 13 12 11 10 9 10 nF 2:1 LO input SAW filter IF1 in U4459B 1 2 3 4 5 6 7 8 200 W 10 kW *) 10 nF Tuner AGC take over 95 9638 Tuner AGC IF gain control IF2 out *) depends on application 1 mF to 10 mF Figure 4. Basic application circuit 4 (7) TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 U4459B Internal Pin Configuration 1 1.2 kW 1.2 kW 16 50 W 94 9230 5 Figure 8. IF gain control input 3 kW 3 kW 94 9227 Figure 5. IF1 input 8 9 5.6 kW 5.6 kW 3 kW 2 94 9243 2 kW 94 9228 Figure 6. Local oscillator input Figure 9. Tuner-AGC take over point 94 9229 6 3 94 9242 Figure 7. IF2 output Figure 10. Tuner-AGC output TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 5 (7) U4459B Dimensions in mm Package: DIP16 94 9128 6 (7) TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 U4459B Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify 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 unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 15-Jul-96 7 (7) |
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