an8934fa Panasonic Corporation of North America, an8934fa Datasheet
an8934fa
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an8934fa Summary of contents
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... ICs for TV AN8934FA Video signal processing and QPSK demodulation IC for BS/CS broadcasting Overview The AN8934FA is a single chip IC integrating video signal processing, QPSK demodulation, changeover switches of detection and bit-stream signals for BS/CS broadcasting. Features 4.5 MHz L.P.F. for video and 5.7 MHz B.P.F. for sound built-in C/N detection circuit built-in ...
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... AN8934FA Block Diagram 37 Q out Comp out 39 QPSK/CLK GND VCO1 40 CLK out VCO out 43 VCO in VCO 44 CLK Internal bit stream Unswitch Pin Descriptions Pin No. Description 1 Detection output changeover 1 2 Detection output changeover 2 3 External detection signal input ...
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... Noise reduction switch 47 Supply voltage (input amp.) 48 Internal detection signal input Symbol Rating V 5 136 CC P 431 opr 150 stg 80 C. For the independent IC without a heat sink. a Symbol Range V 4.5 to 5.5 CC AN8934FA Description Unit Unit V 3 ...
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... AN8934FA Electrical Characteristics at T Parameter Supply current Standby current Input amp. gain Int.1 Input amp. gain Int.2 Input amp. gain Int.3 Input amp. gain Int.4 Input amp. gain Int.5 Input amp. gain Int.6 Input amp. gain Int.7 Input amp. gain Int.8 Input amp ...
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... MHz and that 5.7773 MHz IN48 V Difference between 27C 27 6.7273 MHz, f 0.5 MHz and that 5.7773 MHz IN48 V Difference between 27D 27 5.2273 MHz, f 0.5 MHz and that 5.7773 MHz IN48 AN8934FA Min Typ Max 8 13.4 14 14.6 0.6 0.2 0 6.5 4.5 2.5 0.5 1.8 3.7 4.3 1 ...
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... AN8934FA Electrical Characteristics T Parameter QPSK B.P.F./L.P.F. frequency characteristic 4 QPSK B.P.F./L.P.F. frequency characteristic 5 Capture range 1 Capture range 2 Data output H Data output L Clock free-run frequency Clock output Clock Frequency adjustment ( ) Clock Frequency adjustment ( ) Switch changeover voltage H Switch changeover voltage L Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. ...
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... Adjusts the gain of input amp. with this 7 pin from Possible to adjust only the signal inputted from pin 48 Input pin of bit-stream ( 10 ) • Input level min. 0.4, typ. 0.5, max. 0.6 V[p-p] 0 Reference voltage pin for gain adjustment volume 7 AN8934FA Description DC voltage ( 2.5 5 1.5 2. ...
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... AN8934FA Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 100 2 100 200 12 13 Pin 12, Pin 13 14 200 14 8 Impedance ( ) 105 k Adjustment pin of C/N detection voltage 7 (to be adjusted Output pin of bit-stream signal • ...
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... V[p-p] 20 Output pin of 4.5 MHz L.P.F • Output level min. 0.35, typ. 0.4, max. 0.42 V[p-p] Input pin for clamp circuit of first stage and video amp. • Input level (luminance signal level) min. 0, typ. 0.4, max. 0.6 V[p-p] 600 Reference pin for pulse sampling in pulse clamp circuit AN8934FA Description DC voltage (V) 2.5 3.3 2.2 2.2 1.2 3.2 9 ...
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... AN8934FA Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 100 26 43.2 k 100 Pin 27, Pin 31 500 28 30 Pin 28, Pin 30 200 Impedance ( ) 30 Output pin of video amp • Capacitance coupling with pin 23. • Output level (luminance signal level) min ...
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... Connect a lag-lead filter between this pin and pin34, pin 35. 6.6 k Output pin of QPSK costus loop 100 Output pin data ( 20 ) • Connect to PCM decoder. • Output level min. 2, typ. 3.2, max. 5 V[p-p] 20 Output pin of data clock (18.4 MHz • Output level min. 1.1, typ. 1.5, max. 2 V[p-p] AN8934FA DC voltage (V) 2.4 2.5 4.7 3.3 11 ...
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... AN8934FA Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 41 41 200 100 43 8 200 100 3 Impedance ( ) 100 k Input phase error (PD signal) of PCM decoder through a lag-lead filter • Enables input voltage Output pin of data clock VCO (18.4 MHz) • ...
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... Figure 3. Frequency characteristics of figure 2. (R 390 ) group delay Figure 2. De-emphasis filter connection circuit De-emphasis filter gain 1 MHz Figure 4. Frequency characteristics of figure 2. gain 4 5 MHz 0 AN8934FA 0. L.P. 390 470 pF (R 470 ) group delay gain MHz 13 ...
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... AN8934FA P T curves of QFP048-P-1010C 1600 Mounted on standard board 1524 (glass epoxy t0.8 mm) 1500 R th(j-a) P 1400 D 1300 1200 1100 1000 900 828 800 700 600 500 400 300 200 100 Ambient temperature T Precaution on handling Supply voltage pins of this IC are pin 24, pin 36, pin 44 and pin 47. ...
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... IN48 IN45 High-level Changeover between BS and CS mode High-level V V Low-level 11 or open 10 Low-level BS (17 MHz[p-p]) JCSAT SCC High-level or open (15.8 MHz[p-p]) (18 MHz[p-p]) AN8934FA 0.047 F 21 0.033 Video GND 18 0. When bit-stream is When pin 6 is inputted on pin 6 no input ...
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Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...