U4488B Quasi-Split Sound Circuit and AM Demodulator Description sign of a universal sound IF module for various applications. The U4488B has the same performance like the U4468B, with the additional feature of a second symmetrical IF input. The U4488B is an integrated bipolar circuit for full multistandard 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 D Active carrier generation by FPLL principle D Complete alignment-free AM demodulator D Switchable amplitude detector for gain control, which operates as a peak detector for FM sound and as a mean level detector for AM sound (frequency-phase-locked-loop) for true quadrature demodulation D Two symmetrical IF inputs Block Diagram IF1/IF2 VS Loop filter S3 11 4 1 IF FM 14 5 REF 0° 90° FPLL VCO 8 VCO 9 2 IF-Amp 12 15 IF AM Intercarrier (FM) IF-Switch 16 Mean 3 6 AF(AM) AGC AM-Det Peak level 13 10 7 IF AGC Mean/peak S1 Mute S2 13789 Figure 1. Block diagram Ordering Information Extended Type Number U4488B TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 Package DIP16 Remarks 1 (9) Preliminary Information U4488B Circuit Description IF Amplifier and AGC FPLL, VCO 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. The amplifier consists of three AC-coupled wideband IF stages. Each differential amplifier stage is gain controlled by the AGC (Automatic Gain Control) voltage, available at Pin 3. The output signal of the IF amplifier is then applied to the FPLL carrier generation, to the mixer for FM/NICAM signals and to the AM demodulator. The IF-AGC is derived from the average level of the AM carrier (L standard) or from the peak value of the FM carrier (e.g., B/G standard). It controls the three-stage wideband amplifier to provide a constant SIF signal to the AM demodulator or to the QSS (quasi-split sound) mixer. IF Input Switch If Pin 11 is open, the IF input 1 is switched on (Pins 1 and 2). If Pin 11 is connected to ground, the IF input 2 is switched on (Pins 15 and 16). Standard Switch If the standard switch (Pin 7) is in position ‘low’ (for AM sound), the AGC is operating as an average level detector. In position ‘open’ or ‘high’ (for FM/NICAM sound), the AGC is a peak value detector. Internal Voltage Stabilizer The FPLL (frequency-phase-locked loop) circuit consists of a frequency detector and a phase detector to generate a control voltage for the VCO tuning. In locked mode the VCO is controlled by the phase detector while in unlocked mode, the frequency detector is superimposed. The VCO operates with an external resonance circuit (L and C parallel) and is controlled by integrated varicaps. A practicable VCO alignment of the external coil is the adjustment of the loop filter voltage (Pin 5) to 2.3 V. At this value, capture and hold range are centered. AM Demodulator The alignment-free AM demodulator is realized by a synchronous detector. The modulated IF signal from the wideband IF amplifier output is multiplied in phase with the limited SIF signal to remove the AM. Then, the resulting AF signal of the demodulator output is fed to the output amplifier and to the AGC stage. Quasi-Split-Sound (QSS) Mixer The QSS mixer is realized by a multiplier circuit. The IF signal (FM/NICAM) is converted in the intercarrier frequency by means of a quadrature signal from the generated picture carrier provided by the PLL. The intercarrier signal is fed via an output amplifier to Pin 12. Mute Switch The internal bandgap reference voltage (4.25 V at Pin 4) ensures constant performance, independent of supply voltage and temperature. AM sound output (Pin 6) can be muted in pulling mute switch (Pin 10) to ‘low’. 2 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 U4488B Pin Description ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ Pin 1, 2 3 4 Symbol Vi1, IF CAGC CREF 5 6 7 8, 9 10 11 12 13 14 15, 16 LF Vo,AM Vsw,AGC VVCO Vsw,mute Vsw, IF Vo,FM GND VS Vi2, IF Function IF input 1 (symmetrical) Capacitor for AGC time constant Capacitor for internal reference voltage Loop filter AF output (AM sound) Standard switch VCO circuit Mute switch IF input switch IF1 / IF2 Intercarrier output (FM sound) Ground Supply voltage (5 V) IF input 2 (symmetrical) Vi1,IF 1 16 Vi2,IF Vi1,IF 2 15 Vi2,IF CAGC 3 14 VS CREF 4 13 GND U4488B LF 5 12 Vo,FM Vo,AM 6 11 Vsw,IF Vsw,AGC 7 10 Vsw,mute VVCO 8 9 VVCO 13791 Figure 2. Pinning Absolute Maximum Ratings Reference point Pin 13, unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ " ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Supply voltage range Pin 14 Supply current Pin 14 Power dissipation (VS = 9 V) Output currents Pins 6 and 12 External voltages Pins 1, 2, 3, 4, 6, 12, 15 and 16 Pins 5, 8 and 9 Pins 7, 10 and 11 Junction temperature Operating temperature range Storage temperature Electrostatic handling * all pins Symbol VS IS P Iout Vext Tj Tamb Tstg VESD Value 4.5 to 9.0 55 500 5 + 4.5 + 3.5 VS +125 0 to +85 –25 to +125 300 Unit V mA mW mA V V V °C °C °C V Value 60 Unit K/W *) Equivalent to discharging a 200-pF capacitor through a 0-W resistor Thermal Resistance Parameters Junction ambient when soldered to PCB TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 Symbol RthJA 3 (9) Preliminary Information U4488B Electrical Characteristics VS = + 5 V, Tamb = + 25°C; reference point Pin 13, unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit VS 4.5 5.0 9.0 V ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ " ÁÁÁÁ D " ÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ D D D ÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ " ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ m ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ DC-supply (Pin 14) Supply voltage Supply current IF-input vin=10 mV or V3 = 2 V IS 40 mA 50 µVrms 100 mVrms (Pins 1 and 2 resp. 15 and 16) Minimum IF input signal Output signal: –3 dB vin Maximum IF input signal Output signal: +1 dB vin Input impedance (See note 1) Rin 1.2 Input capacitance (See note 1) Cin 2 IF input switch (Pin 11) open 70 Switching voltage: IF input 1 Inputs: Pins 1 and 2 VswIF1 Switching voltage: IF input 2 Inputs: Pins 15 and 16 VswIF2 Switching current SIF-AGC V –50 µA 65 dB 4.7 µF (Pin 3) Gv AGC capacitor 60 CAGC (Pins 5, 8 and 9) Max. oscillator frequency For carrier generation Vision carrier capture range fvco = 38.9 MHz Cvco = 6.2 pF Oscillator drift (free runing) as function of temperature Tamb = 55°C, Standard switch pF 1.5 Isw IF gain control range FPLL and VCO 0 k fVCO fcap f/ 70 MHz 1.5 2 T MHz –0.3 % fvco = 38.9 MHz Cvco = 6.2 pF,(see note 2) (Pin 7) Switching voltage for mode 1: FM/NICAM sound Peak value control (see note 3) Vsw1 2.0 VS V Switching voltage for mode 2: AM sound Average level control Vsw2 0 1.5 V Switching current AM mute switch Isw A (Pin 10) Switching voltage AM output active Vmute1 Switching voltage AM output switched off Vmute2 Switching current 100 open 0 Imute 1.5 –100 V A Notes 1. 2. 3. This parameter is given as an application information and not tested during production The oscillator drift is related to the picture carrier frequency, with external temperature compensated LC circuit Without external control voltage (Pin 7 open), the IC automatically operates in mode 1 4 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 U4488B Electrical Characteristics (continued) VS = + 5 V, Tamb = + 25°C; reference point Pin 13, unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁ ÁÁÁ ÁÁÁ Á ÁÁÁÁ ÁÁÁ ÁÁÁ Á ÁÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ W ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ " ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ " ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ Parameters Intercarrier output DC output voltage Output resistance Intercarrier output signal Intercarrier bandwidth Weighted signal-to-noise ratio (CCIR 468) Ripple rejection Allowable AC output peak current Allowable DC output current AF output – AM DC output voltage Output resistance AF output signal AF bandwidth Total harmonic distortion Test Conditions / Pins Symbol (Pin 12) (see note 4) VDC (See note 1) Rout vin = 10 mV Vout 5.5 MHz output signal –1 dB B –3 dB B/G mod. VIF signal: vin = 10 mV; FM dev. = ±27 kHz; fmod = 1 kHz; tested with U2860B; Black screen: Channel 1/2 Color bar: Channel 1/2 Tested from Pin 14 to 12 RR (see note 1) IAC Weighted signal-to -oise ratio (CCIR 468) Ripple rejection Allowable AC output peak current Allowable DC output current Min. Typ. 2 Unit V 200 100 150 mVrms tbd tbd MHz MHz 60/58 58/56 dB dB dB 35 0.7 IDC (Pin 6) Max. –2 mA mA (see note 5) (See note 1) m = 54% –3 dB m = 54% fmod = 1 kHz, 12.5 kHz Reference: m = 54%; fmod = 1 kHz Tested from Pin 14 to 6 (see note 1) VDC Rout voAF B THD 500 tbd 1 S/N 56 RR 2.2 V 150 2 dB 28 IAC IDC mVrms kHz % dB 0.3 –1 mA mA Notes 1. 2. 3. 4. 5. This parameter is given as an application information and is not tested during production The oscillator drift is related to the picture carrier frequency, with external temperature compensated LC circuit Without external control voltage (Pin 7 open), the IC automatically operates in mode 1 Picture carrier PC = 38.9 MHz; sound carrier SC1 = 33.4 MHz, SC2 = 33.16 MHz; PC/SC1 =13 dB; PC/SC2 = 20 dB; PC unmodulated (equivalent to sync peak level) Sound carrier SC = 32.4 MHz, modulated with fmod = 1 kHz, m = 54%; vin = 10 mV TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 5 (9) Preliminary Information U4488B Test Circuit VS +5 V Rx 22 µF 270 Ω 10 nF SFT 5.74 MA 500 Ω 10 µF 13 14 12 11 2.2 µF 2.2 µF 10 9 8 5 6 7 680 Ω U2860B 680 Ω 1 2 3 4 3.3 kΩ SFT 5.5MA 3.3 kΩ 15 nF Intercarrier frequency 15 nF Mute Squelch AF2 AF1 IF1/IF2 Mute Standard L VS +5 V 22 µF S3 S2 10 nF VCO (38.9 MHz) IF2 10 nF 32.4 MHz 16 15 14 13 12 10 nF 11 10 9 L1 IF U4488B Standard B/G 1 2 3 4 5 8.2 pF 6 7 8 10 nF IF1 33.4 MHz 4.7 µF 4.7 µF 470 nF 38.9 MHz 150 Ω S1 AGC (Mean/Peak) AF (AM) 13790 Figure 3. 6 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 U4488B Internal Pin Configuration 10 kΩ 10 kΩ 2.3 V 2 kΩ 2 kΩ 5 1, 15 2, 16 2.75 V 13792 13798 Figure 4. Sound IF inputs (Pins 1, 2 resp. 15,16) Figure 7. Loop filter (Pin 5) 1.45 V 6 100 Ω 3 1 mA IDC 13796 13799 Figure 8. AM output (Pin 6) Figure 5. AGC time constant (Pin 3) 3.5 V 17 kΩ 7 15.5 kΩ 4 4.25 V 23 kΩ 3.5 V 13800 13797 Figure 9. AGC switch (Pin 7) Figure 6. Internal reference voltage (Pin 4) TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 7 (9) Preliminary Information U4488B Internal Pin Configuration 3.5 V 3 kΩ 3 kΩ 8 60 kΩ 9 11 2.0 V 10 kΩ 13793 13801 Figure 12. IF input switch (Pin 11) Figure 10. VCO (Pins 8 and 9) 120 Ω 12 3.5 V 20 kΩ 10 1.4 mA 2.6 V 20 kΩ 13802 IDC Figure 11. Mute switch (Pin 10) 13803 Figure 13. Intercarrier output (Pin 12) Package Information Package DIP16 Dimensions in mm 7.82 7.42 20.0 max 4.8 max 6.4 max 0.5 min 3.3 1.64 1.44 Alternative 16 0.58 0.48 17.78 0.39 max 9.75 8.15 2.54 9 technical drawings according to DIN specifications 1 8 8 (9) Preliminary Information 13015 TELEFUNKEN Semiconductors Rev. A2, 15-Jan-98 U4488B 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. A2, 15-Jan-98 9 (9) Preliminary Information