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| CXA1812Q S-terminal Compatible Video I/O Description The CXA1812Q is an IC developed for processing video I/O signals in VCRs. This IC has a built-in video output circuit designed especially for use with viewfinders (VF), making this IC optimal for use in camcorders. In addition, both the video input system and the viewfinder video output system provide title insertion functions, making it possible to insert characters and graphics into video signals. Features * Built-in video output circuit for use with viewfinders (title insertion function (white or black character), compatible with SY/C and composite video output) * Built-in C system EE/PB switch EE : Electric-Electric monitor mode * Title insertion function (white or black character) * C MUTE function for playback in PAL mode (Outputs C signal used for generating the composite video signal) * Built-in switch for switching between the two input systems, Y and C * Built-in 75 driver for the two input systems, Y and C (with power saving function) Structure Bipolar silicon monolithic IC 32 pin QFP (Plastic) Absolute Maximum Ratings (Ta=25 C) * Supply voltage VCC 7 V * Operating temperature Topr -20 to +75 C * Storage temperature Tstg -65 to +150 C * Allowable power dissipation PD 450 mW Operating Conditions * Supply voltage * Supply voltage range VCC VCC 4.75 4.5 to 5.25 V V Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. --1-- E93701A79-TE CXA1812Q Block Diagram and Pin Configuration EVFY/VOUT EVFCOUT INSEL 24 23 22 21 20 VOW 19 18 17 CLAMP YIN2 25 CLAMP GND 26 DDS1 BUFF 15 COUT1 16 VOB CIN1 27 BUFF 12dB 6dB YOUT1 VOW1 YIN1 VOB1 MUTE1 14 VCC Y/VSEL 28 CLAMP 13 YIN CIN2 29 12 P.SAVE YOUTGND 30 MUTE2 DDS2 CLAMP 11 EVFYIN YOUT 31 DRIV MUTE3 10 SEL1 YINVIN 32 BUFF DRIV 9 YOUTVCC 1 COUTGND 2 VREG 3 COUT2 4 CMUTE 5 COUT 6 SEL2 7 CIN 8 COUTVCC --2-- CXA1812Q Pin Description Pin No. 1 Symbol COUTGND Pin voltage 0 V Equivalent circuit -- Externally applied voltage Description Chroma 75 driver GND. 4 V internal regular output. Connect a decoupling capacitor. Do not use for external bias. VCC 60 200 2 VREG 4V -- Chroma signal output used for generating a composite video signal. 3 COUT2 2.2 V 3 GND 120 150 VCC 20 143mVp-p 314mVp-p 4 CMUTE 0V 4 150 72k GND VCC 660 Control input used for muting both the chroma signals that are input to Pins 27 (CIN1) and 29 (CIN2) and pass through the EE path, as well as the chroma signal that is input from Pin 7 (CIN). Low (0 to 0.8 V) : normal operation High (2 V to VCC) : mute Chroma 75 driver output. 5 COUT 2.2 V 5.3k 16k 2.2V 660 1.2m 5 GND 572mVp-p 1.256Vp-p VCC 20 6 SEL2 0V 6 150 72k GND Control input used for switching between the signals input to Pins 27 and 29 and the signal input to Pin 7. Low (0 to 0.8 V) : signal at Pin 7 is selected High (2 V to VCC) : signals at Pins 27 and 29 are selected --3-- CXA1812Q Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description Video output chroma signal input. Coupled by means of a capacitor within the IC. Inputting a signal of -0.3 V or less may lead waveform distortion. VCC 7 CIN -- 7 50k 150 20p 2.2V 80 GND 143mVp-p 314mVp-p 8 9 COUTVCC YOUTVCC 4.75 V 4.75 V -- -- Chroma 75 driver power supply. Y 75 driver power supply. Control input used for switching the signals that are input from Pins 11 (EVFYIN) and 13 (YIN). Low (0 to 0.8 V) : signal at Pin 13 is selected High (2 V to VCC) : signal at Pin 11 is selected Y signal input for viewfinder. Coupled by means of a capacitor ; in order to keep clamp error to a minimum, keep the input impedance as low as possible. 0.5Vp-p 10 SEL1 0V Same as for Pin 6. VCC 200 11 EVFYIN 2.5 V (Sync tip) 11 1100 1 50 GND 2.5V VCC 20 12 P. SAVE 0V 12 150 GND Control input for power saver. When in power saving mode, the Y and C 75 drivers stop operating. The output of Pin 31 (YOUT) and Pin 5 (COUT) goes to high impedance. Low (0 to 0.8 V) : normal operation High (2 V to VCC) : power saving mode 72k 15k --4-- CXA1812Q Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description Video output Y signal input. Coupled by means of a capacitor; in order to keep clamp error to a minimum, keep the input impedance as low as possible. 0.5Vp-p 13 YIN 2.5 V (Sync tip) Same as for Pin 11. 2.5V 14 VCC 4.75 V -- Power supply other than the 75 driver. Video input chroma signal output. 15 COUT1 2.2 V Same as for Pin 3. 143mVp-p 314mVp-p VCC 20 16 VOB 0V 16 72k 150 GND VCC 90 200 Control input for black level insertion of the Y signals input to Pins 23 (YIN1) and 25 (YIN2). The chroma signals input from Pins 27 and 29 are also muted simultaneously. Low (0 to 0.8 V) : normal operation High (2 V to VCC) : insertion mode Video input Y signal output. 17 YOUT1 1.8 V (Sync tip) 17 0.5Vp-p GND 180 250 1.8V 18 VOW 0V Same as for Pin 4. Control input for white level insertion of the Y signals input to Pins 23 and 25. The chroma signals input from Pins 27 and 29 are also muted simultaneously. This pin takes precedence over the Pin 16 control signal. Low (0 to 0.8V) : normal operation High (2 V to Vcc) : insertion mode --5-- CXA1812Q Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description Y and composite video signal output for the viewfinder. A composite video signal is output when Pin 28 (Y/VSEL) is high. VCC 180 19 1.8 V EVFY/VOUT (Sync tip) 5.3k 16k 2.1V 360 800 19 1Vp-p GND 1.8V 20 VOW1 0V Same as for Pin 4. VCC 100 200 21 EVFCOUT 2.2 V 20k 20k 2.2V 200 300 21 Control input for white level insertion of the Y and composite video signals for the viewfinder (output from Pin 19). The chroma signal for the viewfinder output from Pin 21 (EVFCOUT) is also muted simultaneously. This pin takes precedence over the Pin 22 (VOB1) control signal. Low (0 to 0.8 V) : normal operation High (2 V to VCC) : insertion mode Chroma signal output for the viewfinder. When Pin 28 is high, the output amplifier goes into power saving mode and Pin 21 goes to high impedance. GND 286mVp-p 628mVp-p 22 VOB1 0V Same as for Pin 6. Control input for black level insertion of the Y and composite video signals for the viewfinder. The chroma signal for the viewfinder is also muted. Low (0 to 0.8 V) : normal operation High (2 V to VCC) : insertion mode --6-- CXA1812Q Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description Video input Y signal inputs. Coupled by means of a capacitor; in order to keep clamp error to a minimum, keep the input impedance as low as possible. 0.5Vp-p 1 40 GND 2.5V VCC 200 23 25 YIN1 YIN2 2.5 V (Sync tip) 23 25 1100 VCC 20 20 24 INSEL 0V 24 150 72k GND Control input for switching between signals input from Pins 23 and 25 and from Pins 27 and 29. Low (0 to 0.8 V) : signals at Pins 23 and 27 are selected High (2 V to VCC) : signals at Pins 25 and 29 are selected GND other than the 75 driver. Video input chroma signal inputs. Coupled by means of a capacitor within the IC. Inputting a signal of -0.3 V or less may lead waveform distortion. 26 GND 0 V -- 27 29 CIN1 CIN2 -- Same as for Pin 7. 143mVp-p 314mVp-p 28 Y/VSEL 0V Same as for Pin 6. Control input for switching the output signal format for Pin 19. Pin 19 output Pin 21 output Low : Y signal Chroma signal High : Composite High impedance video signal Low (0 to 0.8 V) High (2 V to VCC) Y 75 driver GND. 30 YOUTGND 0 V -- --7-- CXA1812Q Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description Y 75 driver output. 1.3 V (Sync tip) 2Vp-p VCC 800 1.3V 31 2.7k 8k 1.2V 1.2m 1.5m GND 0.5Vp-p 32 31 YOUT Y 75 driver feedback input. 32 YINVIN 1.3 V (Sync tip) 1.3V --8-- Electrical Characteristics Measu rement Measurement conditions SW SW SW SW SW 2 Adjust VADJ pin to 2.85 V with RV 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 16.0 2.0 2.0 0.8 O O O 2.0 O 160 O O 3.90 0.8 9.5 15.0 24.0 16.0 4.05 25.0 No signal No signal No signal No signal O -- -- -- 35.0 34.0 22.5 4.20 11 13 23 25 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 -- mA mA mA V point VADJ ICC ICC ICC 2 (O ON) Min. Typ. Max. Unit SW conditions Bias conditions (Unit : V) (Ta=25 C, VCC=4.75 V, refer to the electrical characteristics measurement circuit.) No. Item Symbol Input pins 0 Bias voltage adjustment VADJ -- 1 Current consumption 1 ICC1 -- 2 Current consumption 2 ICC2 -- 3 Current consumption PS ICCPS -- 4 17 357 mVp-p, 300 kHz G (300 k) 357 mVp-p, 5 MHz G (5 M)/G (300 k) 357 mVp-p, 5 MHz V (10 M)/V (5 M) 500 mVp-p (Y100 %), difference between input and Sync tip 500 mVp-p (Y100 %), difference between input and Sync tip 357 mVp-p, 5 MHz G (CT)/G (5 M) 357 mVp-p, 5 MHz G (CT)/G (5 M) O O O O O O O 0.8 2.0 2 2 0.8 0.8 3 5.5 17 17 17 VREG voltage VREG -- Y input 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1 0.8 -0.5 -0.5 0 0 -54 180 200 0.5 0.5 dB dB dB mV 5 Gain G17 23, 25 6 Frequency response F17 23, 25 7 Secondary distortion HD17 23, 25 8 17 17 17 VOB1 level VOB1 23, 25 9 VOW1 level VOW1 23, 25 390 410 -74 -53 430 mV dB dB 10 DDS1 cross talk CTD117 23, 25 11 31A 357 mVp-p, 300 kHz G (300 k) 357 mVp-p, 5 MHz G (5 M)/G (300 k) 357 mVp-p, 5 MHz V (10 M)/V (5 M) Output amplitude for 679 mVp-p (Y150 %) input O O O O O O 31A 31A 31A Input SW cross talk CTIN17 23, 25 --9-- 19 357 mVp-p, 300 kHz G (300 k) 357 mVp-p, 5 MHz G (5 M)/G (300 k) 357 mVp-p, 5 MHz V (10 M)/V (5 M) 500 mVp-p (Y100 %), difference between input and Sync tip 500 mVp-p (Y100 %), difference between input and Sync tip 357 mVp-p, 5 MHz G (CT)/G (5 M) 357 mVp-p, 5 MHz G (CT)/G ( 5M) O O O O 7 19 19 19 19 19 19 Y output 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6.0 -0.75 -0.25 -54 1.20 1.34 6.5 0.25 dB dB dB Vp-p 12 Gain G31 13 13 Frequency response F31 13 14 Secondary distortion HD31 13 15 Output D range V31 13 EVF Y output 4.75 0.8 0.8 4 0.8 0.8 0.8 0.8 0.8 0.8 5 5.5 -0.5 6.0 0 -51 2.0 320 360 400 6.5 0.5 dB dB dB mV 16 Gain G19 11, 13 17 Frequency response F19 11, 13 18 Secondary distortion HD19 11, 13 19 VOB2 level VOB2 11, 13 20 VOW2 level VOW2 11, 13 2.0 0.8 6 6 0.8 0.8 780 820 -57 -53 860 mV dB dB 21 DDS2 cross talk CTD219 11, 13 22 Input SW cross talk CTSE19 11, 13 CXA1812Q No. rement Measurement conditions SW SW SW SW SW 2 11 13 23 25 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 Min. Typ. Max. Unit point Item Symbol Input Measu (O ON) SW conditions Bias conditions (Unit : V) pins C input 1 15 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 0.8 9 5.2 -0.5 -0.5 -0.5 2 2 -15 -0.5 0 -55 0 -57 -66 15 -0.5 0 -0.5 0 0.5 0.5 0.5 -0.8 -0.3 0.2 15 15 15 15 15 15 15 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 dB dB dB dB dB mV dB dB 23 Gain G15A 27, 29 24 Frequency response 1 F115A 27, 29 25 Frequency response 2 F215A 27, 29 26 Frequency response 3 F315A 27, 29 27 Secondary distortion HD15A 27, 29 28 MUTE level M15A 27, 29 29 MUTE cross talk CTM15A 27, 29 30 Input SW cross talk 5A 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V(8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 0.8 314 mVp-p, 4.43 MHz G(CT)/G (4.43 M) 0.8 0.8 9 8 10 10 10 5A 5A 5A 5A 5B 5A 5A 5A CTIN15A 27, 29 C EE 1 4.75 0.8 2.0 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 5.7 0 0 0 -60 -60 0 -57 -66 -78 60 6.2 0.5 0.5 0.5 dB dB dB dB dB mV dB dB dB 31 Gain G5A 27, 29 32 Frequency response 1 F15A 27, 29 33 Frequency response 2 F25A 27, 29 34 Frequency response 3 F35A 27, 29 35 Secondary distortion HD5A 27, 29 36 MUTE level M5A 27, 29 --10-- 3 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V(8.86 M)/V (4.43M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 0.8 10 3 3 3 3 3 3 3 3 37 MUTE cross talk CTM5A 27, 29 38 Input SW cross talk CTIN5A 27, 29 39 SEL2 SW cross talk CTSE5A 27, 29 C EE 2 4.75 0.8 2.0 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 -0.8 -0.5 -0.5 -0.5 -0.3 0 0 0 -53 10 10 0.8 0.8 9 8 -15 0 -57 -70 -60 15 0.2 0.5 0.5 0.5 dB dB dB dB dB mV dB dB dB 40 Gain G3A 27, 29 41 Frequency response 1 F13A 27, 29 42 Frequency response 2 F23A 27, 29 43 Frequency response 3 F33A 27, 29 44 Secondary distortion HD3A 27, 29 45 MUTE level M3A 27, 29 46 MUTE cross talk CTM3A 27, 29 47 Input SW cross talk CTIN3A 27, 29 48 SEL2 SW cross talk CTSE3A 27, 29 CXA1812Q No. rement Measurement conditions SW SW SW SW SW 2 11 13 23 25 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 point Min. Typ. Max. Unit Item Symbol Input Measu (O ON) SW conditions Bias conditions (Unit : V) pins C EE EVF 1 21 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 0.8 8 5.2 -0.5 -0.5 -0.5 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 0.8 0.8 0.8 9 11 11 11 11 11 -30 -0.5 0 -52 0 -58 -67 -70 30 -0.5 0 -0.5 0 0.5 0.5 0.5 21 21 21 21 21 21 21 21 4.75 0.8 2.0 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 5.2 5.7 6.2 dB dB dB dB dB mV dB dB dB 49 Gain G21A 27, 29 50 Frequency response 1 F121A 27, 29 51 Frequency response 2 F221A 27, 29 52 Frequency response 3 F321A 27, 29 53 Secondary distortion HD21A 27, 29 54 MUTE level M21A 27, 29 55 MUTE cross talk CTM21A 27, 29 56 Input SW cross talk CTIN21A 27, 29 57 SEL2 SW cross talk 19 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 0.8 2.0 11 11 11 11 11 19 19 19 19 19 19 19 19 19 CTSE21A 27, 29 C EE V 1 4.75 0.8 2.0 0.8 0.8 0.8 08 0.8 0.8 8 2.0 5.7 0 0 0 -52 -30 0 -53 0.8 0.8 0.8 0.8 9 8 0.8 5.2 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 -0.5 -0.5 -0.5 -56 -55 -54 30 6.2 0.5 0.5 0.5 dB dB dB dB dB mV dB dB dB dB 58 Gain G19A 27, 29 59 Frequency response 1 F119A 27, 29 60 Frequency response 2 F219A 27, 29 61 Frequency response 3 F319A 27, 29 62 Secondary distortion HD19A 27, 29 --11-- 5A 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 2.0 2.0 5A 5A 5A 5A 5B 5A 5A 63 MUTE level M19A 27, 29 64 MUTE cross talk CTM19A 27, 29 65 Input SW cross talk CTIN19A 27, 29 66 SEL2 SW cross talk CTSE19A 27, 29 67 Y/V SW cross talk CTYV19A 27, 29 C output 1 5.7 0 0 0 -53 -60 0 -72 -74 60 6.2 0.5 0.5 0.5 dB dB dB dB dB mV dB dB 68 Gain G5B 7 69 Frequency response 1 F15B 7 70 Frequency response 2 F25B 7 71 Frequency response 3 F35B 7 72 Secondary distortion HD5B 7 73 MUTE level M5B 7 74 MUTE cross talk CTM5B 7 75 SEL2 SW cross talk CTSE5B 7 CXA1812Q No. rement Measurement conditions SW SW SW SW SW 2 11 13 23 25 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 point Min. Typ. Max. Unit Item Symbol Input Measu (O ON) SW conditions Bias conditions (Unit : V) pins C output 2 3 314 mVp-p, 3.58 MHz G (3.58 M) 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 -0.5 -0.5 -0.5 0 -53 2.0 -15 0 -69 0.8 2.0 5.2 -0.5 -0.5 -0.5 -77 15 0 0 0.5 0.5 0.5 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 3 3 3 3 3 3 3 -0.8 -0.3 0.2 dB dB dB dB dB mV dB dB 76 Gain G3B 7 77 Frequency response 1 F13B 7 78 Frequency response 2 F23B 7 79 Frequency response 3 F33B 7 80 Secondary distortion HD3B 7 81 MUTE level M3B 7 82 MUTE cross talk CTM3B 7 83 SEL2 SW cross talk 21 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 2.0 0.8 0.8 12 12 12 21 21 21 21 21 21 21 CTSE3B 7 C EVF output 1 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.7 0 0 0 -50 -30 0 -55 -60 30 6.2 0.5 0.5 0.5 dB dB dB dB dB mV dB dB 84 Gain G21B 7 85 Frequency response 1 F121B 7 86 Frequency response 2 F221B 7 87 Frequency response 3 F321B 7 88 Secondary distortion HD21B 7 89 MUTE level M21B 7 --12-- 19 314 mVp-p, 3.58 MHz G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 0.8 2.0 0.8 12 19 19 19 19 19 19 19 19 90 MUTE cross talk CTM21B 7 91 SEL2 SW cross talk CTSE21B 7 C EVF output 2 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 5.2 -0.5 -0.5 -0.5 5.7 0 0 0 -54 -30 12 12 0.8 0.8 0.8 0 -63 -67 -57 30 6.2 0.5 0.5 0.5 dB dB dB dB dB mV dB dB dB 92 Gain G19B 7 93 Frequency response 1 F119B 7 94 Frequency response 2 F219B 7 95 Frequency response 3 F319B 7 96 Secondary distortion HD19B 7 97 MUTE level M19B 7 98 MUTE cross talk CTM19B 7 99 SEL2 SW cross talk CTSE19B 7 100 Y/V SW cross talk CTYV19B 7 CXA1812Q No. point 2 11 13 23 25 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 SW SW SW SW SW Item Measurement conditions Min. Typ. Max. Unit Symbol Input rement Measu (O ON) Bias conditions (Unit : V) SW conditions pins Cross talk between Y and C (These measurement items are performed with the reference inputs.) 3 357 mVp-p, 5 MHz G (CT)/G (4.43 M) -55 O O O O 4.75 0.8 2.0 13 0.8 0.8 0.8 0.8 0.8 14 0.8 -54 0.8 dB 101 5A 357 mVp-p, 5 MHz G (CT)/G (4.43 M) O O O O Y input CTYC3Y 11, 13 23, 25 102 15 357 mVp-p, 5 MHz G (CT)/G (4.43 M) O O O O CTYC5Y 11, 13 23, 25 dB 103 21 357 mVp-p, 5 MHz G (CT)/G (4.43 M) O 2.0 O O O CTYC15Y 11, 13 23, 25 -55 dB 104 17 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) CTYC21Y 11, 13 23, 25 15 0.8 -51 dB 105 19 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) C input CTYC17C 7, 27 29 -60 dB 106 31A 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) CTYC19C 7, 27 29 -45 dB 107 CTYC31C 7, 27 29 -58 dB --13-- 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 0.8 V for Pin 23 input; 2.0 V for Pin 25 input With E16 and E18=0.8 V or 2.0 V, measure in all combination modes except for E16=E18=0.8 V 2.0 V for Pin 23 input; 0.8 V for Pin 25 input 0.8 V for Pin 13 input; 2.0 V for Pin 11 input 0.8 V for Y/C output; 2.0 V for V output With E20 and E22=0.8 V or 2.0 V, measure in all combination modes except for E20=E22=0.8 V 2.0 V for Pin 13 input; 0.8 V for Pin 11 input 0.8 V for Pin 27 input; 2.0 V for Pin 29 input 2.0 V for Pin 27 input; 0.8 V for Pin 29 input With E4, E16 and E18=0.8 V or 2.0 V, measure in all combination modes except for E4=E16=E18=0.8 V With E4, E16, E18, E20 and E22=0.8 V or 2.0 V, measure in all combination modes except for E4=E16=E18=E20=E22=0.8 V With E4, E20 and E22=0.8 V or 2.0 V, measure in all combination modes except for E4=E20=E22=0.8 V 2.0 V for Pin 11 input; 0.8 V for all others 0.8 V for Pins 25 and 29 input; 2.0 V for all others 0.8 V for Pin 7 input; 2.0 V for all others CXA1812Q Electrical Characteristics Measurement Circuit SG23 10k 10 TP21 TP19 TP17 S23 E24 24 20 19 18 17 E22 TP23 23 22 21 E20 E18 75 75 CLAMP S25 CLAMP 26 BUFF 12dB BUFF SG25 25 DDS1 15 14 CLAMP 13 12 16 TP25 10k 6dB 10 E16 TP15 0.047 47 S13 10k TP13 E12 10 SG13 VADJ 27 MUTE1 28 29 30 DRIV SG27 75 E28 BUFF DRIV --14-- 75 MUTE2 DDS2 TP31B 31 220TP32 32 330 2.2 1k MUTE3 1 2 TP2 3 4 E4 75 TP3 10 SG7 75 47 TP5A 75 5 6 7 8 TP5B E6 100 OP AMP SG29 RV 50k 75 S11 10k CLAMP 11 10 E10 9 0.047 75 TP11 10 SG11 75 TP31A 75 47 0.047 S2 A ICC VCC CXA1812Q 4V Application Circuit 286mVp-p 628mVp-p 1Vp-p or 1Vp-p Viewfinder Signal Processing Block Control Block 0.47 24 20 19 18 17 23 22 21 0.5Vp-p 6dB 12dB BUFF CLAMP 25 0.47 CLAMP 26 BUFF 0.047 16 DDS1 15 14 47 0.5Vp-p 143mVp-p 314mVp-p Camera Signal Processing Block 27 MUTE1 CLAMP 12 MUTE2 DRIV 28 29 30 31 1k MUTE3 32 BUFF DRIV 13 0.47 --15-- DDS2 CLAMP 11 10 9 220 2.2 330 1 1Vp-p 10 0.01 75 2 3 4 5 6 7 8 47 0.047 Main Signal Processing Block 143mVp-p 314mVp-p 75 39 75 0.047 0.5Vp-p 39 47 75 39 143mVp-p 314mVp-p 39 VCC (TYP : 4.75V) 75 286mVp-p 628mVp-p 75 CXA1812Q Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. CXA1812Q Description of Operation (Refer to the Pin Description for details on the standard I/O signal levels and the control logic.) * Video Input System INSEL 24 From extemal camera signal processing block YIN1 23 YIN2 25 CIN1 27 CIN2 29 C input system L MUTE 1 H BUFF 15 COUT1 CLAMP L Y input system CLAMP To video signal processing block H DDS 1 BUFF 17 YOUT1 VOB 16 VOW 18 To C output system (EE) and VFC output system The Y signals input to Pins 23 (YIN1) and 25 (YIN2) are clamped by the respective sync tips, and one of the signals is selected by the control signal input to Pin 24 (INSEL). Titles are inserted by the control signals input to Pins 16 (VOB) and 18 (VOW), and after passing through the buffer the signal is output from Pin 17 (YOUT1). Regarding the title insertion levels, the white level is approximately 75IRE and the black level is approximately 10IRE. Title insertion is described in detail later. Just as with the Y signals, one of the C signals input to Pins 27 (CIN1) and 29 (CIN2) is selected by the control signal at Pin 24. The signal is muted to the chroma center level by the control signals at Pins 16 and 18, and after being branched to EE output, the signal passes through the buffer and is output from Pin 15 (COUT1). * Video Output System YIN 13 CLAMP DRIV Y output system From the video signal processing block To VFY output system To VFC output system From C input system(EE) L CIN 7 C output system BUFF 3 COUT2 6 SEL2 4 CMUTE 12 P.SAVE To composite video signal generation circuit MUTE 3 H COUT DRIV 0.01 5 YINVIN 31 220 32 2.2 1k External 330 video output 75 YOUT 75 --16-- CXA1812Q The Y signal input to Pin 13 (YIN) is clamped by the sync tip and is then branched to the Y output system and the VFY output system. The signal sent to the Y output system passes through the 75 driver (gain=12 dB) and is then output from Pin 31 (YOUT). Either the C signal input from Pin 7 (CIN) or the C signal for EE output that was branched from the C input system is selected by the control signal input to Pin 6 (SEL2). After the signal is muted to the chroma center level by the control signal input to Pin 4 (CMUTE), the signal is branched to the VFC output system and is also passed through the 75 driver (gain=12 dB), after which it is output from Pin 5 (COUT). The signal is also output from Pin 3 (COUT2) for composite video signal generation. The role of Pin 3 is explained in more detail later. When Pin 12 (P.SAVE) is set high, it is power saving mode. At this time, the Y and C 75 drivers cease functioning and the outputs go to high impedance. * VF Video Output System SEL1 10 EVFYIN 11 CLAMP H YIN 13 CLAMP To Y output system CMUTE 4 H EVFCOUT SEL2 CIN 7 L H MUTE 3 To C output system From C input system (EE) 6 MUTE 2 To VF block 6dB 21 L DDS 2 EVFY/VOUT 12dB 19 L VOB1 VOW1 22 20 Y/VSEL 28 The Y signals input to Pins 13 and 11 (EVFYIN) are clamped by the respective sync tips, and one of the signals is selected by the control signal input to Pin 10 (SEL1). When the video signal required for the viewfinder is different from the signal input to Pin 13, the necessary signal is input from Pin 11. Titles are inserted by the control signals input to Pins 22 (VOB1) and 20 (VOW1). Just as in the video input system, regarding the title insertion levels, the white level is approximately 75IRE and the black level is approximately 10IRE. Either this Y signal or the post-Y/C MIX composite video signal is selected by the control signal input to Pin 28 (Y/VSEL), and then the signal passes through the 12 dB amplifier and is output from Pin 19 (EVFY/VOUT). When Pin 28 is high, the post-Y/C MIX composite video signal is selected. At the same time, the 6 dB amplifier (for C output) stops functioning in order to reduce the amount of current consumption. At this time, the output from Pin 21 (EVFCOUT) goes to high impedance. The C signal for the viewfinder that was branched from the C output system is muted to the chroma center level by the control signals input to Pins 22 and 20. This signal is input to the Y/C MIX circuit in order to generate the composite video signal for the viewfinder; the signal is also passed through the 6 dB amplifier and is output from Pin 21. --17-- CXA1812Q * Title Insertion Function (Timing Relationships) When VOW/VOW1 is high, the Y signal replaces from the pedestal level to an electric potential of 75IRE (white character); when VOB/VOB1 is high, the Y signal Y signal replaces from the pedestal level to an electric potential of 10IRE (black character). The C signal replaces to the chroma center VOW electric potential when VOW/VOW1 or VOW1 VOB/VOB1/CMUTE is high. Because VOW/VOW1 have precedence, VOB VOW/VOW1 going high results in the VOB1 insertion of white character even if CMUTE VOB/VOB1 is high. If the settings are as depicted in the diagram at right, white C signal character can be bordered with black. 100 IRE 140 IRE 10 IRE 75 IRE Bolder section * Relationship between Signal Flow and the Title Insertion function, and the Role of Pin 3 Title insertion 2 is performed by a Y/C main signal processing IC. Although no problem Title insertion 1 Y input C input Y output C output MUTE 3 Color spectrum compensation IC (required in PAL system) Includes delay element DDS 1 MUTE 1 DDS MUTE REC output PB input DDS 2 VF output MUTE 2 Pin 3 Composite (V) output Title insertion 3 Title insertion 2 CXA1812Q Y/C main signal processing IC --18-- CXA1812Q Notes on Operation * Cross talk may become severe, depending on the power supply and the ground connections, and on the substrate pattern. The power supply and ground connections should be wired so that impedance is as low as possible, and the signal lines should be located away from other lines. * The power supply pins should be decoupled as closely as possible to the IC. Because Pin 14 (VCC) is the main power supply for this IC, inadequate decoupling can result in a worsening of characteristics such as distortion and cross talk. Pins 8 (COUTVCC) and 9 (YOUTVCC) are power supplies for the output stage of the 75 drivers, and inadequate decoupling can result in oscillation. * If more than the necessary capacitance is connected to the output pins (Pins 3, 5, 15, 17, 19, 21, and 31), oscillation may result. Wiring should be kept as short as possible. * The frequency response of the Y 75 driver can be controlled by external elements. The frequency response is raised if capacitance is connected to Pin 32 (YINVIN) versus GND. The frequency response is attenuated in the high frequency if capacitance is connected between Pin 31 (YOUT) and Pin 32. * When Pin 6 (SEL2) is low, Pin 7 (CIN) and Pin 5 (COUT) have an input/output relationship, so that if more than the necessary amount of capacitance is connected between these two pins, a loop may be formed and oscillation may easily result. When designing the board, make sure that there is no parasitic capacitance between Pins 7 and 5. * Pins 7 (CIN), 27 (CIN1), and 29 (CIN2) are coupled within the IC. If a signal of -0.3 V or less is input, a protective element may cause waveform distortion. When inputting a signal of -0.3 V or less, it is recommended that a suitable DC bias be applied to the input signal. --19-- CXA1812Q Ambient temperature vs. Current consumption 35 4.080 ICC-Current consumption (mA) 30 Ambient temperature vs. VREG voltage VREG voltage (V) -25 0 25 50 75 Ta-Ambient temperature (C) 100 4.070 25 4.060 20 4.050 15 -25 0 25 50 75 Ta-Ambient temperature (C) 100 Frequency response (Y output system) 10 10 Frequency response (CEE system) 0 0 Gain (dB) -20 Vin=357mVp-p -30 Gain (dB) -10 -10 -20 Vin=314mVp-p -30 100k 1M 10M 100M 100k 1M 10M Frequency (Hz) 100M Frequency (Hz) Input amplitude vs. Second distortion (Y output system) -40 -40 Input amplitude vs. Second distortion (CEE system) Second distortion (dB) -50 Second distortion (dB) 200 300 400 500 Input amplitude (mVp-p) 600 -50 -60 -60 100 100 200 300 400 500 Input amplitude (mVp-p) 600 --20-- CXA1812Q Input amplitude vs. Cross talk (EVF output system) Input amplitude vs. Cross talk (CEE system) Cross talk (dB) -50 Cross talk (dB) 200 300 400 500 Input amplitude (mVp-p) 600 -70 -60 -80 100 100 200 300 400 500 Input amplitude (mVp-p) 600 Frequency vs. Secondary distortion (Y output system) -30 Vin=357mVp-p Secondary distortion (dB) -40 Secondary distortion (dB) -40 -30 Frequency vs. Secondary distortion (CEE system) Vin=314mVp-p -50 -50 -60 -60 -70 -70 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M Frequency vs. Cross talk (EVFY output system) Frequency vs. Cross talk (CEE system) -50 -60 -60 -70 -80 -70 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M --21-- CXA1812Q Package Outline Unit : mm 32PIN QFP (PLASTIC) 9.0 0.2 + 0.3 7.0 - 0.1 24 17 + 0.35 1.5 - 0.15 0.1 25 16 32 9 + 0.2 0.1 - 0.1 1 0.8 + 0.15 0.3 - 0.1 8 + 0.1 0.127 - 0.05 0 to 10 0.24 M PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE QFP-32P-L01 QFP032-P-0707 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER PLATING 42 ALLOY 0.2g --22-- 0.50 (8.0) |
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