CXA3219M UHF-Band RF Modulator for VCR Description The CXA3219M is a UHF-band RF modulator which converts the frequency of audio and video signals. Some circuits which comprise this IC are a UHF oscillator video clamp, white clip, video modulator, audio FM modulator and an intercarrier SW. 16 pin SOP (Plastic) Features • Low voltage of 5V • Wide bandwidth 470 to 750MHz • UHF oscillator greatly reduces external parts • Sharp white clip circuit • Built-in voltage regulator can accept large fluctuation of supply voltage • Video input of 0.5Vp-p for general-purpose use • Mixer simplifies RF unit design • Picture/sound ratio is adjustable with external parts • Intercarrier switch • • • • Structure Bipolar silicon monolithic IC Recommended Supply Voltage Range Supply voltage VCC 5.0 ± 0.5 Applications PAL system VCR Absolute Maximum Ratings Supply voltage VCC 7 V Operating temperature Topr –20 to +75 °C Storage temperature Tstg –55 to +150 °C Allowable power dissipation PD 350 mW V RF-OUT ANALOG VCC OSC VCC OSC GND OSC4 OSC3 OSC2 OSC1 Block Diagram and Pin Configuration 16 15 14 13 12 11 10 9 VIDEO MIXER AMP UHF OSC FM-OSC W/C-CLAMP 6 7 8 Video-in T1/T2-SW 5 FM-Tank PS-ADJ 4 FM-Tank 3 Audio-in 2 REG 1 ANALOG-GND REG 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– E97X19-PS CXA3219M Pin Description and Equivalent Circuit Pin No. 1 2 Symbol Typical pin voltage [V] Equivalent circuit Description GND1 GND for RF/audio. P/S ADJ P/S adjustment (Adding a capacitor between Pin 2 and GND increases P/S ratio.) Video modulation depth adjustment (Adding a resistor between Pin 2 and GND increases the modulation depth; adding a resistor between Pins 2 and 4 decreases the modulation depth.) 1.8 2 740 11.4k 53.8k 3 T1/T2 SW 2.4 T1/T2 SW. T1 for GND. T2 for OPEN. 3 37.6k 75k 4 4 REG OUT 4.1 5 AUDIO IN 0 12.5k Regulator output. Audio input. 5 22.5k 6 6.4k 6 TANK1 5.5MHz audio tank coil connection. 3.1 1.6k –2– CXA3219M Pin No. Symbol Typical pin voltage [V] Equivalent circuit Description 7 7.8k 7 TANK2 6.0MHz audio tank coil connection. 2.9 1.6k 8.2k 8 VIDEO IN 2.6 Video input. 8 32.4k 12 9 10 11 12 OSC1 OSC2 OSC3 OSC4 2.5 1.7 1.7 2.5 9 11 10 130 130 Oscillator pin. 8k 8k 13 GND2 GND for oscillator. 14 VCC1 Power supply for oscillator. 15 VCC2 Power supply for RF/audio. 16 RF OUT 125 RF output. 4.1 16 1.9k –3– CXA3219M Electrical Characteristics 1 Refer to Electrical Characteristics Test Circuit. (Ta = 25°C, VCC = 5V, fP = 591.25MHz) Item Symbol Conditions Min. Typ. Max. Unit 22 28 35 mA Vo V1 (VIDEO IN) and V2 (AUDIO IN) at no signal ∗1 78.7 81.2 83.7 dBµV Video modulation depth mp V1 = 0.5Vp-p, FLAT FIELD signal input 72 78.5 86 % Max. video modulation depth (During limiter operation) mp (Max.) V1 = 1.0Vp-p, FLAT FIELD signal input 92 95.5 99 % Chroma beat Vcb V1 = 4.43MHz, 0.5Vp-p sine wave input∗5 68 78 – dB Sync crush level ∆Sync V1 = 0.5Vp-p, FLAT FIELD signal input ∆Sync = (1 – S/W • 10/4) × 100 – 2 5 % Differential gain DG STAIR STEP signal input V1 = 0.5Vp-p∗2 0 1.6 5 % Differential phase DP STAIR STEP signal input V1 = 0.5Vp-p∗2 –5 0 5 deg Video 2nd-harmonic wave ratio VVH V1 = 0.5Vp-p, 1MHz sine wave input∗3 48 52.5 – dB PS ratio Vps V1 = no input, fs = 5.5MHz 11.5 14 16.5 dB Audio FM modulation sensitivity βS1 (T1) 0.420 0.455 0.400 0.440 Audio distortion THD V2 = 100mVp-p, fs = 5.5MHz 0.400 1kHz sine wave input fs frequency change/0.1V∗6 fs = 6.0MHz 0.380 0 V2 = 1kHz sine wave input∗4 0.4 1 % Supply current ICC Video output level βS2 (T2) kHz/mV Audio S/N ratio ASN V2 = 1kHz sine wave input 0dB at fs = 5.5MHz with 60kHz deviation V1 = STAIR STEP signal input (rms measurement) Max. audio FM modulation depth ms (Max.) V2 = 1Vp-p, 1kHz sine wave input (T1) fs frequency change (kHz)/100kHz × 100 380 415 – % Audio 2nd-harmonic wave ratio VS2 Difference between video carrier (V1 = no input) and 2nd-harmonic wave, at PS ratio of 14dB conversion 52 57 – dB –4– 45 54 – dB CXA3219M Electrical Characteristics 2 1. Video S/N 50dB (min.), 58dB (typ.) 2. Video amplitude frequency characteristics Within ±1dB at 0.5 to 5MHz (at 1MHz reference) 3. APL variation (Normalized to APL 50%) Within ±2% at 10 to 90% 4. Pin 5 input impedance 1MΩ and above 5. Pin 8 input impedance 1MΩ and above ∗1 Spectrum analyzer with 50Ω input impedance should be used to test video output level. Measured value Vo (dBm) is used to calculate output according to the following relationship: Output (dBµ) = Vo (dBm) + 107 50Ω terminal direct reading value ∗2 Measured after demodulating by standard demodulator. ∗3 fc + 2MHz component of V1 carrier (fc) level. ∗4 Adjust the V2 level to obtain an FM deviation of ±30kHz and measure the harmonic distortion after demodulating Vo with a standard demodulator. ∗5 Video determined by measuring ratio (dB) of chroma beat to video carrier level when V1 = no signal by spectrum analyzer. ∗6 R1 (12kΩ) of the Electrical Characteristics Test Circuit is added for obtaining a better match between the audio modulation sensitivity classifications and the actual pre-emphasis. Input Waveform STAIR STEP signal APL 50% subcarrier 20 IRE FLAT FIELD signal V white 100 IRE 90 IRE 0.5Vp-p 40 IRE V sync 40 IRE 63.5µs 63.5µs –5– CXA3219M Electrical Characteristics Test Circuit 30V 10µ DIN 10µ LAT CLK 5V 1000p 10k 100Ω 62p 20p 1000p 10k 2SC1623 10k 10k XTAL 4MHz 724-41RVR39L2 13 14 15 16 12 11 10 9 6 7 8 CXA1356N 1 2 5 4 3 0.1µ 10k 1000p 1000p 47k 100p 47k 1000p 13 14 2p OSC4 GND2 VCC1 VCC2 RF OUT 15 16 4p 12 VIDEO MIXER AMP 1000p 4p 10 11 1000p OSC1 22p RF OUT 2p 10p OSC2 10µ VCC 0.022µ 1T362 OSC3 100p 1000p 50Ω 9 UHF OSC FM-OSC 6p 1M TANK2 7 8 5.5 6.0 10µ MHz MHz 0.33µ VIDEO IN V1 75 S1 100p 47p AUD IN V2 R1 12k 6 TANK1 REG T1/T2 SW 5 4 3 AUD 2 P/S ADJ GND1 1 W/C-CLAMP VIDEO REG 47p 1000p 22k –6– 1000p CXA3219M Application Circuit 1 100p 100p 2p 10p 1000p 15 OSC4 GND2 VCC1 VCC2 RF OUT 16 14 4p 13 12 VIDEO MIXER AMP 2p 10 11 1000p 4p OSC2 22p RF OUT OSC3 VCC OSC1 10µ 9 UHF OSC FM-OSC 7 TANK2 TANK1 6 8 0.33µ 5.5 6.0 10µ MHz MHz 47p S1 12k VIDEO IN V1 75 100p 1M AUD IN V2 REG T1/T2 SW 6p 5 4 3 AUD 2 P/S ADJ GND1 1 W/C-CLAMP VIDEO REG 47p 1000p 22k 1000p 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. –7– CXA3219M Application Circuit 2 100p SG –10dBm 100p 50 10µ VCC 22p 16 15 14 13 12 VIDEO MIXER AMP OSC1 OSC2 OSC3 OSC4 GND2 VCC1 VCC2 RF OUT RF OUT 9 10 11 UHF OSC FM-OSC REG 8 VIDEO 7 TANK2 TANK1 6 0.33µ 5.5 6.0 10µ MHz MHz 47p S1 12k VIDEO IN V1 75 100p 1M AUD IN V2 REG T1/T2 SW 6p 5 4 3 AUD 2 P/S ADJ GND1 1 W/C-CLAMP 22k 1n 47p 1n 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. –8– CXA3219M Example of Representative Characteristics Supply voltage vs. Video modulation depth Supply voltage vs. Video output level (fp = 591.25MHz, Ta = 25°C) 100 90 mp – Video modulation depth [%] Vo – Video output level [dBµV] mp Max mp 85 80 75 70 Max. video modulation depth mp Max. 90 85 80 75 Video modulation depth mp 70 4 5 6 Vcc – Supply voltage [V] 7 4 Supply voltage vs. PS ratio βS1 – Audio FM modulation sensitivity [kHz/mV] 20 15 10 5 0 4 5 6 Vcc – Supply voltage [V] 5 6 Vcc – Supply voltage [V] 7 Supply voltage vs. Audio FM modulation sensitivity 25 Vps – PS ratio [dB] 95 7 0.7 0.6 0.5 0.4 0.3 0.2 4 –9– 5 6 Vcc – Supply voltage [V] 7 CXA3219M Ambient temperature vs. Video modulation depth Ambient temperature vs. Video output level 85 90 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz mp – Video modulation depth [%] Vo – Video output level [dBµV] 90 80 75 70 –20 0 20 40 60 Ta – Ambient temperature [°C] 85 80 75 70 –20 80 20 95 15 Vps – PS ratio [dB] mp Max – Max. video modulation depth [%] 100 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 85 80 –20 0 20 40 60 Ta – Ambient temperature [°C] C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 0 20 40 60 Ta – Ambient temperature [°C] 80 Ambient temperature vs. Video 2nd-harmonic wave ratio 70 VvH – Video 2nd-harmonic wave ratio [dB] Vs2 – Audio 2nd-harmonic wave ratio [dB] 10 0 –20 80 70 60 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 40 30 –20 80 5 Ambient temperature vs. Audio 2nd-harmonic wave ratio 50 0 20 40 60 Ta – Ambient temperature [°C] Ambient temperature vs. PS ratio Ambient temperature vs. Max. video modulation dep 90 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 0 20 40 60 Ta – Ambient temperature [°C] 60 50 40 30 –20 80 – 10 – C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 0 20 40 60 Ta – Ambient temperature [°C] 80 CXA3219M Ambient temperature vs. Chroma beat Ambient temperature vs. Differential gain 100 20 16 DG – Differential gain [%] Vcb – Chroma beat [dB] 90 80 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 70 60 12 8 4 50 –20 0 20 40 60 Ta – Ambient temperature [°C] 0 –20 80 Ambient temperature vs. Differential phase 80 1.0 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 10 THD – Audio distortion [%] DP – Differential phase [deg] 0 20 40 60 Ta – Ambient temperature [°C] Ambient temperature vs. Audio distortion 20 0 –10 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 0.8 0.6 0.4 0.2 –20 –20 0 20 40 60 Ta – Ambient temperature [°C] 0 –20 80 Ambient temperature vs. Audio S/N ratio C.C.I.R 40ch: 623.25MHz 50 40 30 –20 80 15 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz ∆Sync – Sync crush level [%] 60 0 20 40 60 Ta – Ambient temperature [°C] Ambient temperature vs. Sync crush level 70 ASN – Audio S/N ratio [dB] C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 0 20 40 60 Ta – Ambient temperature [°C] 10 5 0 –5 –10 –20 80 – 11 – 0 20 40 60 Ta – Ambient temperature [°C] 80 CXA3219M Ambient temperature vs. Max. audio FM modulation depth 0.7 ms Max – Max. audio FM modulation depth [%] βSI – Audio FM modulation sensitivity [kHz/mV] Ambient temperature vs. Audio FM modulation sensitivity C.C.I.R 40ch: 623.25MHz 0.6 0.5 0.4 0.3 0.2 –20 0 20 40 60 Ta – Ambient temperature [°C] 80 – 12 – 500 C.C.I.R 40ch: 623.25MHz 400 300 200 –20 0 20 40 60 Ta – Ambient temperature [°C] 80 CXA3219M Video carrier frequency vs. Video modulation depth Video carrier frequency vs. Video output level (Ta = 25°C) 100 90 mp – Video modulation depth [%] Vo – Video output level [dBµV] mp Max mp 85 80 75 70 550 600 650 700 750 800 850 fp – Video carrier frequency [MHz] Vs2 – Audio 2nd-harmonic wave [dB] 15 10 5 900 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 60 50 40 30 550 900 Video carrier frequency vs. Video 2nd-harmonic wave ratio 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 900 Video carrier frequency vs. Chroma beat 70 100 90 60 Vcb – Chroma beat [dB] VvH – Video 2nd-harmonic wave ratio [dB] 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 70 20 Vps – PS ratio [dB] Video modulation depth mp Video carrier frequency vs. Audio 2nd-harmonic wave ratio 25 0 550 80 70 550 900 Video carrier frequency vs. PS ratio Max. video modulation depth mp Max. 90 50 40 80 70 60 30 550 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 50 550 900 – 13 – 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 900 CXA3219M Video carrier frequency vs. Audio distortion Video carrier frequency vs. Audio S/N ratio 70 0.8 ASN – Audio S/N ratio [dB] THD – Audio distortion [%] 1.0 0.6 0.4 60 50 40 0.2 0 550 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 30 550 900 Video carrier frequency vs. Differential gain 20 DP – Differential phase [deg] DG – Differential gain [%] 900 Video carrier frequency vs. Differential phase 20 15 10 5 0 550 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 10 0 –10 –20 550 900 – 14 – 600 650 700 750 800 850 fp – Video carrier frequency [MHz] 900 CXA3219M Package Outline Unit: mm 16PIN SOP (PLASTIC) 300mil + 0.4 9.9 – 0.1 16 + 0.4 1.85 – 0.15 9 6.9 + 0.2 0.1 – 0.05 8 0.45 ± 0.1 + 0.1 0.2 – 0.05 1.27 0.5 ± 0.2 1 7.9 ± 0.4 + 0.3 5.3 – 0.1 0.15 ± 0.12 M PACKAGE STRUCTURE PACKAGE MATERIAL SONY CODE SOP-16P-L01 EIAJ CODE ∗SOP016-P-0300-A EPOXY RESIN LEAD TREATMENT SOLDER PLATING LEAD MATERIAL COPPER ALLOY PACKAGE WEIGHT 0.2g JEDEC CODE – 15 –