TDA 4480-C TELEFUNKEN Semiconductors Multi standard quasi parallel-sound processor for TV-sets Technology: Bipolar Features High signal sensitivity Simple filter components configuration ESD protected and few external Alignment free AM demodulator for the standard L Processing of two carrier stereo signals VCO controlled mixer stage converts intercarrier frequencies of different standards into a preferred sound IF Low intercarrier distortions Optimum tuning characteristic Case: 20-pin dual inline plastic Figure 1 Block diagram Preliminary Information 1 TDA 4480-C TELEFUNKEN Semiconductors Pin Configuration Pin Symbol 1–2 Function Vision-IF-carrier input Pin Symbol 11 Function Ground 3 Intercarrier input 5.74 MHz 4 AGC time constant 14 AF output 2 5 Intercarrier output 5.74 MHz 15 Intercarrier output 5.5 MHz 6 Standard switch 16 Supply voltage 7 AF output 1 17 Intercarrier input 5.5 MHz 8-9 Phase tank circuit 5.74 MHz 10 VC0 tank circuit 12-13 18-19 20 Phase tank circuit 5.5 MHz Sound-IF-carrier input n.c. Circuit Description The integrated circuit allows the high quality processing of sound carrier for different TV standards. The circuit requires separate vision and audio carrier inputs. It delivers the output audio signal for mono, two channels or stereo applications. Audio carrier signal (simple or double carrier, FM and AM) is applied via three stage AGC controlled broad band amplifier which delivers regulated output signal for two mixing stages. One mixer works for AM-demodulation and AGC-function whereas the second mixer produces the sound intercarrier IF-frequencies (5.5/5.74 MHz). Vision carrier signal for the intercarrier generation is delivered from the demodulator tank of the video IF circuit (TDA 4439, TDA 4453). It is then matched via a limiter stage to the FM intercarrier mixer. FM-sound-IF-carrier reaches the quadrature demodulator via the selection circuit and the following limiter amplifier. The final audio signal is supplied to the low ohmic output (Pin 7,14) with low pass filter character. There is a switchable converter for different audio standards (4.5, 6.00 and 6.5 MHZ), which mixes the sound 1P-signal properly e.g. at 5.5 MHz. The VC0 (Pin 10) must be controlled across the sound output (Pin 7) which includes AFC-function. Sound signal at the AM-modulation is introduced via standard switch in the first sound channel, whereas the intercarrier, converter section and both FM demodulators are switched off. In case of sound IF converter operation, the second sound channel and the AM-section are switched off. The standard mode is controlled by a tristate signal on Pin 6. Absolute Maximum Ratings Reference point Pin 11, unless otherwise specified Parameters Supply voltage Supply current External voltage Pin 16 Pin 16 Pin 6 ! 2 Symbol VS IS Vext Value 10 to 13.5 80 VS Unit V mA V Vext 6 V Ptot Tj Tamb Tstg 1 125 - 25 to + 70 - 25 to + 125 Preliminary Information W _C _C _C TDA 4480-C TELEFUNKEN Semiconductors Thermal Resistance Parameters Symbol RthJA Value 60 Unit K/W Electrical Characteristics V5 = 12 V, Tamb = 25 _C, reference point pin 11, fPC = 38.9 MHz, fSC1 = 33.4 MHz, fSC2 = 33.1578 MHz, Parameters Supply voltage range Supply current Test Conditions / Pin Pin 16 FM-operation, AM-operation, Output DC voltage Pin 16 Pin 16 Pin 7,14 Standard switching voltage Standard B/G, Pin 6 Standard L, Pin 6 converter operation Pin 6 Standard switching current V6 5 V Pin 6 Picture carrier input voltage Pin 1,2 Min. sound carrier input 5.5 MHz-output Pin 18,19 voltage SC1 signal –3 dB Max. sound carrier input Pin 18,19 voltage SC1 AGC range Audio output voltage FM-deviation = 30 kHz m = 80 % Pin 7,14 Audio voltage difference Pin 7,14 between both outputs Harmonic distortion AMfmod = 1 kHz, Pin 7,14 operation FM-deviation = 30 kHz Harmonic distortion AMfmod = 1 kHz, Pin 7 operation m = 80 %, v18-19 = 10 mV Min. output load Pin 7,14 Signal to noise ratio (Standard B/G) according to CCIR 468-2 specifications, SC1: v18-19 = 10 mV, PC: v1-2 = 10 mV, prelimited demodulator picture carrier signal from TDA 4453 reference signal: fmod = 1 kHz, FM deviation = 30 kHz Black burst 1. channel/2. channel 1) Grid test signal 1. channel/2. channel 1) Converter DC voltage Tuning range Input resistance Input capacity V6 3.5 V Symbol VS Min 10 IS IS V0 V V V I v v Type Max 13.5 65 40 3.5 1.7 0 3.5 2.2 5 10 50 Unit V mA mA V 2.7 1.5 VS 20 20 V V V A mV V v 100 mV v 65 500 dB mVeff 1 v d 0.5 d 1.5 R dB % 3.0 3 % k Pin 7/14 (S=N)/N 62/60 dB Pin 7/14 (S=N)/N 50/48 dB V10 f R C 2.7 V MHz k pF Pin 10 Pin 10 Pin 10 Pin 10 9 Preliminary Information 13 100 12 3 TDA 4480-C TELEFUNKEN Semiconductors Parameters Test Conditions / Pin Signal to noise ratio (Standard B/G) according to CCIR 468-2 specifications, SC1: v18-19 = 10 mV, PC: v1-2 = 10 mV, prelimited demodulator picture carrier signal from TDA 4453 reference signal: fmod = 1 kHz, FM deviation = 30 kHz Symbol Black burst 1. channel/2. channel 1) Grid test signal 1. channel/2. channel 1) Converter DC voltage V6 3.5 V Tuning range Input resistance Input capacity 1) Standard B/G IF-modulated FBAS-signal Pin 7/14 (S=N)/N 62/60 dB Pin 7/14 (S=N)/N 50/48 dB V10 f R C 2.7 V MHz k pF Pin 10 Pin 10 Pin 10 Pin 10 Min 9 Figure 2: Test circuit 4 Type Preliminary Information Max 13 100 12 Unit TELEFUNKEN Semiconductors TDA 4480-C Pin 1,2 IF-input vision carrier Pin 18,19 IF-input sound carrier Pin 3 (17) Intercarrier input Pin 3: 5.74 MHz Pin 17: 5.5 MHz Preliminary Information 5 TDA 4480-C TELEFUNKEN Semiconductors Pin 5 (15) Intercarrier output Pin 5: 5.74 MHz Pin 15: 5.5 MHz Pin 7 AP-output AM/PM (channel 1, 5.5 MHz) Pin 14 AF-output FM (channel 2, 5.74 MHz) 6 Preliminary Information TELEFUNKEN Semiconductors TDA 4480-C Pin 8,9 (12,13) Phase tank circuit Pin 8, 9 : 5.74 MHz Pin 12,13 : 5.5 MHz Pin 4 AGC time constant Pin 6 Standard switch Preliminary Information 7 TDA 4480-C TELEFUNKEN Semiconductors Pin 10 VC0 tank circuit Dimensions in mm 8 Preliminary Information TELEFUNKEN Semiconductors TDA 4480-C 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 and 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. Of particular concern is the control or elimination of releases into the atmosphere of those substances which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) will soon 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 any 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 and 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 and do not contain ozone depleting substances. We reserve the right to make changes to improve technical design 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 Preliminary Information 9