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 Ω driver for the two input systems, Y and C (with power saving function) 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 Structure Bipolar silicon monolithic IC 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 YIN1 VOB1 EVFCOUT VOW1 EVFY/VOUT VOW YOUT1 24 23 22 21 20 19 18 17 6dB 12dB BUFF INSEL Block Diagram and Pin Configuration CLAMP YIN2 25 16 VOB CLAMP GND 26 DDS1 CIN1 27 Y/VSEL BUFF MUTE1 28 CLAMP CIN2 29 YOUTGND 14 VCC 13 YIN 12 P.SAVE MUTE2 30 YOUT 31 15 COUT1 DDS2 CLAMP DRIV 11 EVFYIN 10 SEL1 MUTE3 COUT2 CMUTE —2— 5 6 7 8 COUTVCC 4 CIN 3 SEL2 2 COUT 1 VREG DRIV BUFF 9 COUTGND YINVIN 32 YOUTVCC CXA1812Q ∗Externally applied voltage Pin Description Pin No. Symbol Pin voltage Equivalent circuit 1 COUTGND 0 V∗ — Chroma 75 Ω driver GND. 2 VREG 4V — 4 V internal regular output. Connect a decoupling capacitor. Do not use for external bias. Description 200 VCC 60µ 3 COUT2 Chroma signal output used for generating a composite video signal. 3 2.2 V GND 143mVp-p 314mVp-p 120µ 150µ VCC 20µ 4 CMUTE 0V 4 72k 150 GND VCC 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 Ω driver output. 660µ COUT 2.2 V 5 5.3k 5 16k 2.2V 660µ 1.2m GND VCC 20µ SEL2 0V 6 150 72k 6 GND —3— 572mVp-p 1.256Vp-p 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 CXA1812Q ∗Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description VCC CIN — 7 150 20p 50k 7 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. 80µ 2.2V GND 143mVp-p 314mVp-p 8 COUTVCC 4.75 V∗ — Chroma 75 Ω driver power supply. 9 YOUTVCC 4.75 V∗ — Y 75 Ω driver power supply. 10 SEL1 0V 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 Same as for Pin 6. 200 VCC 11 EVFYIN 2.5 V (Sync tip) 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. 11 1100 0.5Vp-p 1µ 50µ GND VCC P. SAVE 0V 12 150 72k 12 15k 20µ GND —4— 2.5V Control input for power saver. When in power saving mode, the Y and C 75 Ω 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 CXA1812Q ∗Externally applied voltage Pin No. 13 Symbol YIN Pin voltage Equivalent circuit 2.5 V (Sync tip) 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. Same as for Pin 11. 0.5Vp-p 2.5V Power supply other than the 75 Ω driver. Video input chroma signal output. 14 VCC 4.75 V∗ — 15 COUT1 2.2 V Same as for Pin 3. 143mVp-p VCC 20µ VOB 0V 16 150 72k 16 GND 90µ 17 YOUT1 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. 200 VCC 314mVp-p 1.8 V (Sync tip) 17 GND 0.5Vp-p 1.8V 180µ 250µ 18 VOW 0V Same as for Pin 4. —5— 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 CXA1812Q ∗Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description VCC 180µ 5.3k 19 1.8 V EVFY/VOUT (Sync tip) Y and composite video signal output for the viewfinder. A composite video signal is output when Pin 28 (Y/VSEL) is high. 19 16k 1Vp-p 2.1V 360µ 800µ 20 VOW1 GND Same as for Pin 4. 0V 100µ EVFCOUT 2.2 V 20k 21 200 VCC 21 20k 1.8V 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. 2.2V 200µ 300µ GND 286mVp-p 22 VOB1 0V Same as for Pin 6. —6— 628mVp-p 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 CXA1812Q ∗Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description 200 VCC 23 25 YIN1 YIN2 2.5 V (Sync tip) 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. 23 1100 25 0.5Vp-p 1µ 40µ GND 2.5V VCC 20µ 24 INSEL 0V 20µ 24 72k 150 GND 26 27 29 GND CIN1 CIN2 0 V∗ — 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 Ω driver. — Same as for Pin 7. 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. 143mVp-p 28 Y/VSEL 0V Same as for Pin 6. 30 YOUTGND 0 V∗ — 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 Ω driver GND. —7— 314mVp-p CXA1812Q ∗Externally applied voltage Pin No. Symbol Pin voltage Equivalent circuit Description Y 75 Ω driver output. 31 YOUT 1.3 V (Sync tip) 2Vp-p VCC 800µ 1.3V 2.7k 31 32 YINVIN 1.3 V (Sync tip) 32 8k Y 75 Ω driver feedback input. 1.2V 1.2m 1.5m 0.5Vp-p GND 1.3V —8— Bias voltage adjustment Current consumption 1 Current consumption 2 Current consumption PS VREG voltage 0 1 2 3 4 Secondary distortion VOB1 level VOW1 level DDS1 cross talk 7 8 9 10 —9— Frequency response Secondary distortion Output D range 13 14 15 Gain Frequency response Secondary distortion VOB2 level VOW2 level DDS2 cross talk Input SW cross talk 16 17 18 19 20 21 22 EVF Y output Gain 12 Y output Input SW cross talk Frequency response 6 11 Gain 5 Y input Item No. 23, 25 23, 25 VOW1 CTD117 CTSE19 CTD219 VOW2 VOB2 HD19 F19 G19 V31 HD31 F31 G31 357 mVp-p, 5 MHz G (5 M)/G (300 k) 357 mVp-p, 5 MHz V (10 M)/V (5 M) 31A 31A 31A 13 13 357 mVp-p, 5 MHz G (5 M)/G (300 k) 357 mVp-p, 5 MHz V (10 M)/V (5 M) 357 mVp-p, 5 MHz G (CT)/G (5 M) 357 mVp-p, 5 MHz G (CT)/G ( 5M) 19 19 19 19 19 19 11, 13 11, 13 11, 13 11, 13 11, 13 11, 13 difference between input and Sync tip 500 mVp-p (Y100 %), difference between input and Sync tip 500 mVp-p (Y100 %), 357 mVp-p, 300 kHz G (300 k) 19 11, 13 (Y150 %) input Output amplitude for 679 mVp-p 357 mVp-p, 300 kHz G (300 k) 31A 357 mVp-p, 5 MHz G (CT)/G (5 M) 357 mVp-p, 5 MHz G (CT)/G (5 M) difference between input and Sync tip 500 mVp-p (Y100 %), difference between input and Sync tip 13 17 17 17 17 500 mVp-p (Y100 %), 357 mVp-p, 5 MHz V (10 M)/V (5 M) 17 No signal 2 357 mVp-p, 5 MHz G (5 M)/G (300 k) No signal ICC 357 mVp-p, 300 kHz G (300 k) No signal ICC 17 No signal ICC 17 Adjust VADJ pin to 2.85 V with RV Measurement conditions VADJ point rement Measu O 2 O O O O O O O O O O O O O O O O O O O O O O O 11 13 23 25 SW SW SW SW SW (O → ON) SW conditions 0.8 2.0 ∗3 ∗7 0.8 0.8 ∗6 ∗6 2.0 0.8 2.0 4.75 0.8 0.8 ∗4 0.8 0.8 0.8 0.8 0.8 0.8 ∗5 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 ∗2 ∗2 0.8 2.0 2.0 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 ∗1 0.8 0.8 2.0 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 Bias conditions (Unit : V) 3.90 780 320 –0.5 5.5 1.20 –0.75 5.5 390 160 –0.5 –53 –57 820 360 –51 0 6.0 1.34 –54 –0.25 6.0 –53 –74 410 180 –54 0 0 4.05 9.5 –0.5 24.0 16.0 15.0 — 25.0 — Typ. 16.0 Min. 860 400 0.5 6.5 0.25 6.5 430 200 0.5 0.5 4.20 22.5 34.0 35.0 — Max. dB dB mV mV dB dB dB Vp-p dB dB dB dB dB mV mV dB dB dB V mA mA mA — Unit (Ta=25 °C, VCC=4.75 V, refer to the electrical characteristics measurement circuit.) 13 23, 25 23, 25 VOB1 CTIN17 23, 25 HD17 — VREG 23, 25 — 23, 25 — ICC2 ICCPS F17 — ICC1 G17 — pins Input VADJ Symbol Electrical Characteristics CXA1812Q Frequency response 1 Frequency response 2 Frequency response 3 Secondary distortion MUTE level MUTE cross talk Input SW cross talk 25 26 27 28 29 30 —10— Input SW cross talk SEL2 SW cross talk 39 Gain Frequency response 1 Frequency response 2 Frequency response 3 Secondary distortion MUTE level MUTE cross talk Input SW cross talk SEL2 SW cross talk 40 41 42 43 44 45 46 47 48 C EE 2 MUTE cross talk Secondary distortion 35 38 Frequency response 3 34 37 Frequency response 2 33 MUTE level Frequency response 1 32 36 Gain 31 C EE 1 Gain 24 Item 23 C input 1 No. CTSE3A CTIN3A CTM3A M3A HD3A F33A F23A F13A G3A CTSE5A CTIN5A CTM5A M5A HD5A F35A F25A F15A G5A CTIN15A CTM15A M15A HD15A F315A F215A F115A G15A Symbol 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 pins Input 3 3 3 3 3 3 3 3 3 5A 5A 5A 5B 5A 5A 5A 5A 5A 15 15 15 15 15 15 15 15 point rement Measu 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V(8.86 M)/V (4.43M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V(8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 M) Measurement conditions 2 11 13 23 25 SW SW SW SW SW (O → ON) SW conditions ∗9 0.8 0.8 0.8 ∗10 ∗10 0.8 ∗10 0.8 0.8 0.8 ∗10 ∗10 –70 –60 ∗8 –57 0 –53 0 0 0 –0.3 ∗9 –15 –0.5 –0.5 –0.5 –78 ∗8 –57 0 –60 0 0 0 5.7 –66 –57 0 –55 0 0 0 –0.3 Typ. –66 –0.8 –60 –0.5 –0.5 –0.5 5.2 –15 –0.5 –0.5 –0.5 –0.8 Min. ∗9 4.75 0.8 2.0 0.8 0.8 0.8 0.8 0.8 0.8 ∗8 0.8 0.8 ∗10 4.75 0.8 2.0 0.8 0.8 0.8 0.8 0.8 0.8 ∗8 0.8 0.8 0.8 ∗2 ∗2 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 ∗8 0.8 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 Bias conditions (Unit : V) 15 0.5 0.5 0.5 0.2 60 0.5 0.5 0.5 6.2 15 0.5 0.5 0.5 0.2 Max. dB dB dB mV dB dB dB dB dB dB dB dB mV dB dB dB dB dB dB dB mV dB dB dB dB dB Unit CXA1812Q Frequency response 1 Frequency response 2 Frequency response 3 Secondary distortion MUTE level MUTE cross talk Input SW cross talk SEL2 SW cross talk 51 52 53 54 55 56 57 —11— MUTE cross talk Input SW cross talk SEL2 SW cross talk Y/V SW cross talk 64 65 66 67 Gain Frequency response 1 Frequency response 2 Frequency response 3 Secondary distortion MUTE level MUTE cross talk SEL2 SW cross talk 68 69 70 71 72 73 74 75 C output 1 MUTE level Frequency response 3 61 63 Frequency response 2 60 Secondary distortion Frequency response 1 59 62 Gain 58 C EE V 1 Gain 50 Item 49 C EE EVF 1 No. CTSE5B CTM5B M5B HD5B F35B F25B F15B G5B CTYV19A CTSE19A CTIN19A CTM19A M19A HD19A F319A F219A F119A G19A CTSE21A CTIN21A CTM21A M21A HD21A F321A F221A F121A G21A Symbol 7 7 7 7 7 7 7 7 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 27, 29 pins Input 5A 5A 5B 5A 5A 5A 5A 5A 19 19 19 19 19 19 19 19 19 19 21 21 21 21 21 21 21 21 21 point rement Measu 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 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) 314 mVp-p, 4.43 MHz G (CT)/G (4.43 M) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 M) Measurement conditions 2 11 13 23 25 SW SW SW SW SW (O → ON) SW conditions 0.8 2.0 0.8 0.8 2.0 2.0 5.2 –60 –0.5 –0.5 –0.5 –74 –72 0 –53 0 0 0 5.7 –54 –55 ∗8 –53 0 –56 0.8 –30 –52 0 0 0 5.7 0.8 0.8 0.8 0.8 ∗9 ∗11 ∗11 ∗11 ∗11 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 ∗11 –0.5 –0.5 –0.5 –70 ∗8 –58 0 –52 0 0 0 5.7 Typ. –67 5.2 –30 –0.5 –0.5 –0.5 5.2 Min. 0.8 0.8 0.8 0.8 ∗9 ∗11 ∗11 ∗11 ∗11 4.75 0.8 2.0 0.8 0.8 0.8 08 0.8 0.8 ∗8 2.0 0.8 ∗11 4.75 0.8 2.0 0.8 0.8 0.8 0.8 0.8 0.8 ∗8 0.8 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 Bias conditions (Unit : V) 60 0.5 0.5 0.5 6.2 30 0.5 0.5 0.5 6.2 30 0.5 0.5 0.5 6.2 Max. dB dB mV dB dB dB dB dB dB dB dB dB mV dB dB dB dB dB dB dB dB mV dB dB dB dB dB Unit CXA1812Q Frequency response 1 Frequency response 2 Frequency response 3 Secondary distortion MUTE level MUTE cross talk SEL2 SW cross talk 78 79 80 81 82 83 —12— SEL2 SW cross talk Gain Frequency response 1 Frequency response 2 Frequency response 3 Secondary distortion MUTE level MUTE cross talk SEL2 SW cross talk Y/V SW cross talk 92 93 94 95 96 97 98 99 100 C EVF output 2 MUTE cross talk Secondary distortion 88 91 Frequency response 3 87 90 Frequency response 2 86 MUTE level Frequency response 1 85 89 Gain 84 C EVF output 1 Gain 77 Item 76 C output 2 No. CTYV19B CTSE19B CTM19B M19B HD19B F319B F219B F119B G19B CTSE21B CTM21B M21B HD21B F321B F221B F121B G21B CTSE3B CTM3B M3B HD3B F33B F23B F13B G3B Symbol 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 pins Input 19 19 19 19 19 19 19 19 19 21 21 21 21 21 21 21 21 3 3 3 3 3 3 3 3 point rement Measu 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 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) DC differential when mute is off 314 mVp-p, 4.43 MHz V (8.86 M)/V (4.43 M) 314 mVp-p, 5.5 MHz G (5.5 M)/G (3.58 M) 314 mVp-p, 4.43 MHz G (4.43 M)/G (3.58 M) 314 mVp-p, 2.5 MHz G (2.5 M)/G (3.58 M) 314 mVp-p, 3.58 MHz G (3.58 M) Measurement conditions 2 11 13 23 25 SW SW SW SW SW (O → ON) SW conditions 0.8 0.8 ∗12 ∗12 0.8 0.8 2.0 ∗12 0.8 0.8 ∗12 ∗12 0.8 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 0.8 2.0 ∗12 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 2.0 4.75 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 Bias conditions (Unit : V) –30 –0.5 –0.5 –0.5 5.2 –30 –0.5 –0.5 –0.5 5.2 –15 –0.5 –0.5 –0.5 –0.8 Min. –57 –67 –63 0 –54 0 0 0 5.7 –60 –55 0 –50 0 0 0 5.7 –77 –69 0 –53 0 0 0 –0.3 Typ. 30 0.5 0.5 0.5 6.2 30 0.5 0.5 0.5 6.2 15 0.5 0.5 0.5 0.2 Max. dB dB dB mV dB dB dB dB dB dB dB mV dB dB dB dB dB dB dB mV dB dB dB dB dB Unit CXA1812Q Item Symbol pins point rement Measu Measurement conditions 29 7, 27 29 7, 27 29 7, 27 23, 25 11, 13 23, 25 11, 13 23, 25 11, 13 23, 25 11, 13 31A 19 17 21 15 5A 3 314 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) 357 mVp-p, 5 MHz G (CT)/G (4.43 M) 357 mVp-p, 5 MHz G (CT)/G (4.43 M) 357 mVp-p, 5 MHz G (CT)/G (4.43 M) 357 mVp-p, 5 MHz G (CT)/G (4.43 M) 2 O O O O O O O O O O O O O O O O 11 13 23 25 SW SW SW SW SW (O → ON) SW conditions ∗15 0.8 2.0 0.8 4.75 0.8 2.0 ∗13 0.8 0.8 0.8 0.8 0.8 ∗14 0.8 VCC E4 E6 E10 E12 E16 E18 E20 E22 E24 E28 Bias conditions (Unit : V) Min. 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 CTYC31C 107 ∗1. ∗2. ∗3. ∗4. ∗5. ∗6. ∗7. ∗8. ∗9. ∗10. ∗11. ∗12. ∗13. ∗14. ∗15. CTYC19C CTYC17C 106 C input CTYC21Y 104 105 CTYC15Y 103 CTYC3Y CTYC5Y Y input 102 101 Cross talk between Y and C (These measurement items are performed with the reference inputs.) No. Input –58 –45 –60 –51 –55 –54 –55 Typ. Max. dB dB dB dB dB dB dB Unit CXA1812Q —13— RV 50k 4V S2 OP AMP VADJ SG25 TP31A 75 75 S25 10µ 330 1k 75 SG29 75 SG27 10k 75 30 29 28 27 26 25 2.2µ 32 31 220µTP32 TP31B E28 TP25 DRIV 1 CLAMP CLAMP 24 E24 10µ TP21 3 10µ TP3 TP2 2 MUTE2 E22 TP23 23 22 21 S23 75 75 75 TP5A 7 18 E18 17 TP17 8 SG7 75 47µ TP5B E6 100µ 5 6 MUTE1 DDS1 DDS2 20 19 TP19 E20 MUTE3 E4 4 6dB 10k BUFF —14— DRIV 12dB SG23 BUFF Electrical Characteristics Measurement Circuit 0.047µ CLAMP CLAMP BUFF 9 10 11 12 13 14 15 16 47µ 0.047µ E10 TP11 E12 TP13 0.047µ 47µ E16 10µ 10µ 75 75 S11 10k S13 10k TP15 VCC A ICC SG11 SG13 CXA1812Q 75 75 75 75 330 2.2µ 220µ 1Vp-p 32 31 30 29 28 27 26 25 286mVp-p 628mVp-p 75 1k 0.47µ 0.47µ DRIV 1 CLAMP CLAMP 24 2 23 MUTE2 22 10µ 3 21 4 DDS1 MUTE3 DDS2 75 19 0.01µ 5 6 MUTE1 20 47µ 7 18 17 8 0.047µ CLAMP CLAMP BUFF 9 10 11 12 13 14 15 16 VCC (TYP : 4.75V) 47µ 0.047µ 0.47µ 47µ 0.047µ 0.5Vp-p 143mVp-p 314mVp-p Main Signal Processing Block 0.5Vp-p 143mVp-p 314mVp-p Control Block 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. 39 39 39 39 143mVp-p 314mVp-p Camera Signal Processing Block 0.5Vp-p Viewfinder Signal Processing Block 1Vp-p 6dB 1Vp-p or DRIV —15— BUFF 12dB 286mVp-p 628mVp-p BUFF Application Circuit CXA1812Q CXA1812Q Description of Operation (Refer to the Pin Description for details on the standard I/O signal levels and the control logic.) From extemal camera signal processing block • Video Input System INSEL VOB VOW 24 16 18 YIN1 23 CLAMP YOUT1 L Y input system YIN2 DDS 1 H 17 BUFF CLAMP 25 To video signal processing block CIN1 27 L C input system CIN2 MUTE 1 15 BUFF H COUT1 29 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 YOUT CLAMP 220µ Y output system From the video signal processing block To VFY output system 32 YINVIN To VFC output system L CIN 1k 2.2µ External 330 video output 0.01µ 75 From C input system(EE) MUTE 3 75 31 DRIV 5 DRIV H COUT 7 C output system 3 BUFF COUT2 6 SEL2 4 CMUTE —16— 12 P.SAVE To composite video signal generation circuit 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 Ω 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 Ω 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 Ω drivers cease functioning and the outputs go to high impedance. • VF Video Output System SEL1 10 VOB1 VOW1 22 Y/VSEL 28 20 EVFYIN 11 CLAMP H L DDS 2 L YIN 13 EVFY/VOUT CLAMP 12dB 19 To Y output system CMUTE H 4 EVFCOUT SEL2 6dB 6 CIN 21 MUTE 2 To VF block 7 L H MUTE 3 To C output system From C input system (EE) 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 10 IRE 140 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 <Relationship between the title insertion position and the inserted signal> arises in NTSC system, in the case of PAL REC Y, C, V VF system, because it is necessary to connect a color spectrum compensation IC with a delay output output output element between the Y/C main signal Title insertion 1 O O O processing IC and the CXA1812Q, if the title Title insertion 2 X O O is inserted in the Y/C main signal processing Title insertion 3 X X O IC, a temporal deviation occurs in the title insertion position for Y and C. This problem is resolved by using MUTE 3 in the C system only. In addition, because a C signal processed with MUTE 3 and with no temporal deviation is output from Pin 3, the composite video signal can be obtained by mixing this signal with the Y signal. <Positioning of the title insertion function within the overall flow of video signal processing> Title insertion 1 Y input DDS 1 C input MUTE 1 REC output Y output C output DDS MUTE 3 DDS 2 VF output MUTE 2 Color spectrum compensation IC (required in PAL system) Includes delay element MUTE Title insertion 2 Pin 3 Composite (V) output Title insertion 3 CXA1812Q Y/C main signal processing IC —18— PB input 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 Ω 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 Ω 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 Ambient temperature vs. VREG voltage 35 30 VREG voltage (V) ICC-Current consumption (mA) 4.080 25 4.070 4.060 20 4.050 15 –25 0 25 50 75 Ta-Ambient temperature (°C) 100 –25 10 0 0 –10 –10 –20 –20 Vin=357mVp-p Vin=314mVp-p –30 –30 100k 1M 10M 100k 100M 10M Frequency (Hz) Input amplitude vs. Second distortion (Y output system) Input amplitude vs. Second distortion (CEE system) 100M –40 Second distortion (dB) Second distortion (dB) 1M Frequency (Hz) –40 –50 –60 100 100 Frequency response (CEE system) 10 Gain (dB) Gain (dB) Frequency response (Y output system) 0 25 50 75 Ta-Ambient temperature (°C) 200 300 400 500 Input amplitude (mVp-p) 600 —20— –50 –60 100 200 300 400 500 Input amplitude (mVp-p) 600 CXA1812Q Input amplitude vs. Cross talk (EVF output system) <SEL1 SW cross talk> Input amplitude vs. Cross talk (CEE system) <SEL2 SW cross talk> –60 Cross talk (dB) Cross talk (dB) –40 –50 –60 –70 –80 100 200 300 400 500 Input amplitude (mVp-p) 600 100 Frequency vs. Secondary distortion (Y output system) Vin=314mVp-p Secondary distortion (dB) Secondary distortion (dB) 600 –30 Vin=357mVp-p –40 –50 –60 –70 –40 –50 –60 –70 2M 3M 4M 5M Frequency (Hz) 7M 10M 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M Frequency vs. Cross talk (CEE system) <SEL2 SW cross talk> Frequency vs. Cross talk (EVFY output system) <SEL1 SW cross talk> –30 –40 Vin=357mVp-p Vin=314mVp-p –50 Cross talk (dB) –40 Cross talk (dB) 300 400 500 Input amplitude (mVp-p) Frequency vs. Secondary distortion (CEE system) –30 1M 200 –50 –60 –60 –70 –80 –70 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M —21— 1M 2M 3M 4M 5M Frequency (Hz) 7M 10M CXA1812Q Package Outline Unit : mm 32PIN QFP (PLASTIC) 9.0 ± 0.2 24 0.1 + 0.35 1.5 – 0.15 + 0.3 7.0 – 0.1 17 16 32 9 (8.0) 25 1 + 0.2 0.1 – 0.1 0.8 + 0.15 0.3 – 0.1 0.24 M + 0.1 0.127 – 0.05 0° to 10° PACKAGE MATERIAL EPOXY RESIN SONY CODE QFP-32P-L01 LEAD TREATMENT SOLDER PLATING EIAJ CODE QFP032-P-0707 LEAD MATERIAL 42 ALLOY PACKAGE MASS 0.2g JEDEC CODE —22— 0.50 8