U4488B TEMIC Semiconductors, U4488B Datasheet
U4488B
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U4488B Summary of contents
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... Quasi-Split Sound Circuit and AM Demodulator Description The U4488B is an integrated bipolar circuit for full multi- standard sound IF signal processing in TV/VTR and Multimedia applications. It supplies AM signals as well as FM/NICAM sound IF signals and thus allows the de- Features D 5-V supply voltage; low power consumption D Gain-controlled 3-stage wideband IF amplifier ...
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... U4488B Circuit Description IF Amplifier and AGC The symmetrical IF input signal from the external SAW filter is fed to the Pins 1 and 2 resp. Pins 15 and 16. For FM/NICAM application, a SAW filter with double bandpass characteristic is required for the vision and sound carrier. In case of L-standard, a bandpass filter with the center frequency at the L-sound carrier is used ...
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... Storage temperature Electrostatic handling * all pins *) Equivalent to discharging a 200-pF capacitor through a 0- Thermal Resistance Parameters Junction ambient when soldered to PCB TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 Preliminary Information U4488B i1, i1, AGC REF U4488B o, sw,AGC VCO 13791 Figure 2. Pinning Symbol Value V 4 500 ...
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... U4488B Electrical Characteristics reference point Pin 13, unless otherwise specified S amb Parameters Test Conditions / Pins DC-supply (Pin 14) Supply voltage Supply current v = IF-input (Pins 1 and 2 resp. 15 and 16) Minimum IF input signal Output signal: –3 dB Maximum IF input signal Output signal Input impedance (See note 1) Input capacitance ...
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... kHz; Channel 1 (see note out v oAF B THD = 1 kHz, 12.5 kHz S kHz 33.4 MHz 33.16 MHz kHz 54%; v mod U4488B Typ. Max. Unit 200 150 mV rms tbd MHz tbd MHz 60/58 dB 58/ " 0.7 mA – 150 500 mV rms tbd kHz ...
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... IF1 33.4 38.9 MHz MHz 6 (9) Preliminary Information 270 U2860B 3.3 k SFT 5.5MA 15 nF Mute Squelch IF1/IF2 Mute U4488B 4.7 F 4.7 F 470 nF S1 150 AF (AM) Figure 3. 500 2 AF2 AF1 VCO (38.9 MHz 8 AGC (Mean/Peak) 13790 TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 ...
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... Figure 5. AGC time constant (Pin 3) 4 4.25 V 13797 Figure 6. Internal reference voltage (Pin 4) TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 Preliminary Information 13792 Figure 7. Loop filter (Pin 5) 1. 100 1 mA Figure 8. AM output (Pin 6) 7 3.5 V Figure 9. AGC switch (Pin 7) U4488B 2.75 V 13798 IDC 13799 3 15 13800 7 (9) ...
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... U4488B Internal Pin Configuration Figure 10. VCO (Pins 8 and 9) 3 Figure 11. Mute switch (Pin 10) Package Information Package DIP16 Dimensions in mm Alternative (9) Preliminary Information 13801 Figure 12. IF input switch (Pin 11) 12 2.6 V 1.4 mA 13802 Figure 13. Intercarrier output (Pin 12) 20.0 max 4.8 max 3.3 ...
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... 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 TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 Preliminary Information unauthorized use. U4488B 9 (9) ...