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Ordering number : EN5765 Monolithic Linear IC LA7567N, 7567NM TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support Overview The LA7567N and LA7567NM are PAL/NTSC multiformat audio VIF/SIF IF ICs that adopt a semiadjustment-free system. The VIF block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus simplifying the adjustment steps in the manufacturing process. PLL detection is adopted in the FM detector to support multi-format audio detection. A built-in SIF converter is included to simplify multi-format system designs. A 5-V power-supply voltage is used to match that used in most multimedia systems. In addition, these ICs also include a buzz canceller to suppress Nyquist buzz and provide high audio quality. Package Dimensions unit: mm 3067-DIP24S [LA7567N] Functions [VIF] · VIF amplifier · PLL detector · BNC · RF AGC · EQ amplifier · AFT · IF AGC · Buzz canceller [First SIF] · First SIF · First SIF detector · AGC [SIF] · Multi-format SIF converter · Limiter amplifier · PLL FM detector SANYO: DIP24S unit: mm 3112-MFP24S [LA7567NM] Features · Both AFT and SIF inductors built in, thus making adjustment of external inductance unnecessary. · A PAL/NTSC multi-format audio system can be constructed easily. · Built-in buzz canceller for excellent audio performance. · VCC = 5 V, low power dissipation (250 mW) Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Circuit voltage Symbol VCC max V13, V17 I6 Circuit current I10 I24 Allowable power dissipation Operating temperature Storage temperature Pd max Topr Tstg TA 50°C, Independent IC [LA7567NM] *: Mounted on a printed circuit board TA 70°C, Independent IC [LA7567N] Conditions SANYO: MFP24S Ratings 6 VCC ­3 ­10 ­2 420 720 500 ­20 to +70 ­55 to +150 Unit V V mA mA mA mW mW mW °C °C Note: When mounted on a 65 Ч 72 Ч 1.6 mm paper/phenolic resin printed circuit board. SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 50698RM (OT) No. 5765-1/14 LA7567N, 7567NM Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Ratings 5 4.5 to 5.5 Unit V V Operating Characteristics at Ta = 25°C, VCC = 5 V, fp = 38.9 MHz Parameter [VIF Block] Circuit current Maximum RF AGC voltage Minimum RF AGC voltage Input sensitivity AGC range Maximum allowable input No-signal state video output voltage Synchronizing signal tip voltage Video output level Black noise threshold voltage Black noise clamp voltage Video signal-to-noise ratio C-S beat Frequency characteristics Differential gain Differential phase No-signal state AFT voltage Maximum AFT voltage Minimum AFT voltage AFT detection sensitivity VIF input resistance VIF input capacitance APC pull-in range (U) APC pull-in range (L) AFT tolerance frequency 1 VCO1 maximum variability range (U) VCO1 maximum varia