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| TELEFUNKEN Semiconductors TDA4439 Video IF Amplifier for Multistandard TV and VTR Technology: Bipolar Features D Standard B/G-L suitable, processes negatively and positively modulated IF-signals with equal polarity of the output signal D High input sensitivity D Fast AGC by controlled discharge of the AGC capacitor Standard L mode: AGC acting on peak white level, capacitor discharge control by averaged video signal Standard B/G: AGC acting on the sync. pulse peak D Ultra white inverter and ultra black limiter for reducing transmission interference D Internally noise protected gain control, no flyback pulses required D Expanded video frequency response allows the demodulation of amplitude modulated MAC signals D The direction of the AFC curve is selectable independently from the standard switch Case: DIP18 Figure 1. Block diagram Rev. A1: 14.09.1995 1 (7) TDA4439 Pin Description 1 2 3 4 5 6 7 8 95 10840 TELEFUNKEN Semiconductors 16 15 14 13 12 11 10 9 Pin 1, 18 2 3, 17 4 5 6 7 8, 11 9, 10 12 13 14 15 16 Function IF input Standard switch: open B/G ground L Ground IF-AGC storage capacitor AGC (tuner control) Tuner AGC take over Polarity switch: open AFC "DOWN" ground AFC "UP" Demodulator circuit AFC circuit AFC output Average capacitor standard L Video output Supply voltage n.c. Circuit Description The following function units are integrated in this circuit combination for video-IF processing: - Three symmetric, highly stable, gain controlled wide- - Disconnectable AFC generator with push pull band amplifier, quasi galvanic coupling eliminates current output feed back - High impedance, interference free controlled voltage - Video carrier controlled demodulator of high linearity facilities, best possible AGC time constant with small storage capacitor - Polarity switch over for video and AFC-signal - Controlled discharge circuit for fast gain control - Video output amplifier with low-pass characteristics, limiter for ultra black and inverter for ultra white - With VTR operation the video output level is interference according to the ultra white level in B/G, ultra black level in L * * Absolute Maximum Ratings Reference point pin 3, unless otherwise specified Parameters Supply voltage Supply current Open loop voltage External voltage Pin 15 Pin 15 Pin 5 Pin 4 Pin 14 Pin 4 Symbol VS IS V5 V4 V14 I4 I0 Ptot Tj Tamb Tstg Value 10 to 15 75 VS 10 8 0.5 5 50 1.0 125 -25 to +70 -25 to +125 Unit V mA V V V mA mA W C C C Rev. A1: 14.09.1995 Breaking current for VTR operation Video output current max load Pin 14 short circuit max 1 s Pin 14 Power dissipation Tamb 60C Junction temperature Ambient temperature range Storage temperature range 2 (7) TELEFUNKEN Semiconductors TDA4439 Symbol RthJA Maximum 60 Unit K/W Thermal Resistance Parameters Junction ambient Electrical Characteristics VS = 12 V, Tamb = 25C, Reference point Pin 3, unless otherwise specified Parameters Supply current Ultra white level at 1) standard B/G Ultra black clamping level at standard B/G Composite video output 2) signal B/G Video signal standard L 3) (black/white) Difference of the video signals standard L-B/G Clamping level of black limiter Threshold of the ultra white inverter Grey level of the ultra white inverter Supply voltage influence on the ultra black level in standard B/G Supply voltage influence on the ultra white level in standard B/G Video bandwidth Video frequency response over the AGC control range Output DC current Response time of the peak 4) white control in standard L Voltage level standard B/G 5) Voltage level standard L 5) Input sensitivity (sym.) 6) IF-AGC gain reduction Available tuner AGC 10 dB via AGC use Automatic tuner AGC with IF-control Pin 6 n.c. Test Conditions / Pins Pin 15 Pin 14 Pin 14 Peak to peak Peak to peak Pin 14 Pin 14 Pin 14 Pin 14 Pin 14 Pin 14 Symbol IS v0 v0 v0 v0 V14 V14 V14 Bvideo Vvideo I14 tr V2 V2 vi vp I5 AGC Min. Typ. 65 5.2 1.9 3.0 2.1 Max. Unit mA V V V V % 4.8 1.75 2.7 1.85 5.6 2.05 3.3 2.35 10 250 mV below Sync. (typ.) 900 mV upper ultra white level (typ.) 3.6 V Pin 14 0.5 %/V -3 dB Pin 14 Pin 14 Pin 14 Pin 14 Pin 4 Pin 2 Pin 2 1.0 10 2.0 2.8 10 VS 1.2 120 60 3 4 61 %/V MHz dB mA V14 = 8 V ms V V 2 0 v14=3.0 Vpp, V4 = 0.8 V Pin 1-18 mV dB mA dB Pin 5 Pin 5 Rev. A1: 14.09.1995 3 (7) TDA4439 Parameters IF-residual voltage at the video output in the AGC area Differential gain error Differential phase error Sound-chroma beat (1.07 MHz intermodulation) relating to demodulated auxiliary colour carrier Upsetting factor sync. pulse Input impedance Switch OFF voltage for VTR-operation Switch OFF current for VTR-operation DC voltage at the AFC circuit Scope of the AFC voltage AFC current AFC transconductance AFC residual current (AFC "OFF") AFC current - OFF AFC polarity switching voltage 7) 1) 2) 4) 5) 6) 7) TELEFUNKEN Semiconductors Test Conditions / Pins f = 38.9 MHz Pin 14 f = 77.8 MHz Pin 14 Pin 14 Pin 14 Video carrier = 0 dB Pin 14 Colour carrier = -6 dB Sound carrier = -24 dB Symbol v Min. Typ. 10 20 3 3 50 Max. Unit mV o aIM DV sync V sync Ri Ci V4 I4 V V i12 g IR IOFF V7 100 0 2 8 d 5 5 % degree dB 3 1.6 2 10 150 5.0 1.0 0.8 0.2 10 150 1.2 VS VS-1.5 % kW pF V Pin 1-18 Pin 1-18 Pin 4 Pin 4 Pins 9 and 10 Pin 12 Pin 12 Pin 12 V12 = VS/2 Pin 12 mA V V mA mA 100kHz mA mA V Pins 9 and 10 "AFC-up" Pin 7 "AFC-down" All measurements Pin 14 without load Residual carrier 10 %3), Blanking level 30 % carrier amplitude A peak white value for at least 10 ms must be transmitted for each complete frame Direct control of standard reversing switch with TTL level Sync peak value standard B/G AFC polarity switch may be directly matched to TTL-output (i.e. processor output) Figure 2. AFC characteristics/polarity 4 (7) Rev. A1: 14.09.1995 TELEFUNKEN Semiconductors TDA4439 Coil data: Toko 7 KN L1=6 turns, 0.2 CuL L2=4 turns, 0.2 CuL Figure 3. Test circuit Rev. A1: 14.09.1995 5 (7) TDA4439 Dimensions in mm Package: DIP 16 TELEFUNKEN Semiconductors 94 8877 6 (7) Rev. A1: 14.09.1995 TELEFUNKEN Semiconductors TDA4439 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 Rev. A1: 14.09.1995 7 (7) |
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