TDA4454 TEMIC Semiconductors, TDA4454 Datasheet
TDA4454
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TDA4454 Summary of contents
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... Package Options Case: 16-pin DIL plastic Rev. A1: 04.05.1995 Preliminary Information TDA4454 amplified and fed via an interference limiter to the video output (Pin 6). The standard switch also determines the clamp level of the video amplifier and the required IF-AGC mode. In the standard B/G mode the sync peak value is the criterion for a fast charge and discharge ...
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... TDA4454 Block Diagram Loop filter 12 Video Lock detector 16 IF input 1 4 Tuner AGC 2 Tuner AGC take over Pin Description Pin Symbol Function input 2 Tuner AGC adjustment (turn over point) 3 Delayed tuner AGC current 4, 15 Ground 5 IF AGC time constant 6 Video output ...
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... Rev. A1: 04.05.1995 Preliminary Information Symbol out amb T stg Symbol R thJA Voltage Range *) v min ( min ( min ( min ( min ( TDA4454 Value Unit 6 5.0 mA 720 mW +125 C –25 to +85 C –25 to +125 C Value Unit 60 K/W 3 (11) ...
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... TDA4454 Electrical Characteristics reference point Pin 4, unless otherwise specified amb Parameters Test Conditions / Pins DC-supply Supply voltage Supply current IF-amplifier Input sensitivity Sync peak value, B/G Input impedance Input capacitance IF-AGC IF gain control range Response time, standard L See note 1 AGC capacitor ...
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... Measure the dc-voltage at Pin 11 (phase detector). 3. Apply a 38.9 MHz unmodulated carrier signal to the IF input (Pins 1–16); adjust the input level so that the AGC voltage at Pin 5 is between 2.0 V and 2 Adjust the VCO circuit until at Pin 11 is the same dc-voltage as measured in step 2. TDA4454 Typ. Max. Unit 2 mV ...
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... TDA4454 Pin Related Internal Circuits 7634 Figure 1. Pin 1 – 7635 Figure 2. Pin 2 93 7636 3 Figure 3. Pin 3 6 (11) Preliminary Information TELEFUNKEN Semiconductors 7637 Figure 4. Pin 5 Figure 5. Pin Figure 6. Pin 7638 93 7639 Rev. A1: 04.05.1995 ...
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... TELEFUNKEN Semiconductors Pin Related Internal Circuits (Continued Figure 7. Pin 8 – 12 300 10 Figure 8. Pin Figure 9. Pin 11 Rev. A1: 04.05.1995 Preliminary Information 93 7640 Figure 10. Pin 12 93 7641 7644 W 2 Figure 11. Pin 13 93 7642 TDA4454 12 93 7643 13 7 (11) ...
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... TDA4454 IF-AGC, Switching Thresholds 93 7645 93 7646 93 7647 Dig.: Analog: Sound Chrominance +Sync. Diff.: Signal Figure 14. D2MAC-standard (neg. modulated) 8 (11) Preliminary Information TELEFUNKEN Semiconductors 4.2 V Ultra white level: zero carrier 4.0 V White level carrier 2.0 V Sync. peak level: 100% carrier (charge / discharge threshold) Figure 12 ...
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... SAW driver 93 7649 Rev. A1: 04.05.1995 Preliminary Information + 4 470 TDA 4454 4 AGC Tuner AGC Video V + TDA 4454 Tuner AGC take over Tuner AGC IF AGC TDA4454 Standard switch 38.9 MHz VCO L VCO 7648 Standard switch 38.9 MHz 470 VCO L VCO 470 4 Video 9 (11) ...
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... TDA4454 Dimensions in mm Package: DIP 16 10 (11) Preliminary Information TELEFUNKEN Semiconductors 94 9128 Rev. A1: 04.05.1995 ...
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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 Rev. A1: 04.05.1995 Preliminary Information unauthorized use. TDA4454 11 (11) ...