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| CXA1211M Electronic Volume Description The CXA1211M is a wide band general-purpose VCA. This bipolar IC incorporates 2 chnannels. Features * Wide band frequency characteristics: 100kHz to 20MHz (-0.5dB) * Wide dynamic range * Low noise, low distortion * Low power consumption Applications Video signals and other wide band VCA Operating Conditions Supply voltage 8 pin SOP (Plastic) VCC 4.50 to 5.50 V Absolute Maximum Ratings * Supply voltage VCC * Operating temperature Topr * Storage temperature Tstg * Allowable power dissipation PD 14 -20 to +75 -65 to +150 510 V C C mW Block Diagram and Pin Configuration CONT2 VCC IN2 OUT2 5 4 8 7 6 VCA2 VCA1 1 2 3 CONT1 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. OUT1 GND IN1 -1- E90534D8X CXA1211M Pin Description Pin No. Symbol Voltage DC AC I/O resistance Equivalent circuit Description VCC 1 IN1 2.5V 1.0Vp-p 40k 1 40k 3k Signal input pin (CH1) GND VCC 2 CONT1 2.7V 2 -- 24k 5k Input pin of gain control signal (CH1). At "Low" power save is possible. Low: 1V and below GND 100 1 100 VCC 129 3 OUT1 1.9V 1.0Vp-p 3 1m GND Signal output pin (CH1) 4 GND 0V -- -- -- GND pin VCC 129 5 OUT2 1.9V 1.0Vp-p 5 1m GND Signal output pin (CH2) External input -2- CXA1211M Pin No. Symbol Voltage DC AC I/O resistance Equivalent circuit Description VCC 6 CONT2 2.7V 6 -- 24k 5k Input pin of gain control signal (CH2). At "Low" power save is possible. Low: 1V and below GND 100 1 100 VCC 7 IN2 2.5V 1.0Vp-p 40k 7 40k 3k Signal input pin (CH2) GND 8 VCC 5V -- -- -- VCC pin External input -3- CXA1211M Notes on Operation Do not fail to take the following precautions upon usage of the CXA1211M. 1. Countermeasure to cross talk between channels Fix a bypass capacitor to Pins CONT1 and CONT2 that control the amplifier gain. When the impedance of the control voltage source is visible, depending on the package volume and others, cross talk between channels is easily generated. 2. Input signal dynamic range The input dynamic range is at a max of 1.4Vp-p. When the input signal exceeds 1.4Vp-p, the waveform may be clipped and deformed. -4- CXA1211M Electrical Characteristics (Ta = 25C, VCC = 5.0V, See Electrical Characteristics Test Circuit.) Test point Test conditions Item Symbol Input conditions CONT SW set voltage to ON IN Level Freq (V) 0 0 2.87 1 500 300 mVp-p kHz 7 5.0 Test method Min. Typ. Max. Unit 1-ch I1CH Current consumption Both-ch I2CH Max. gain CH1 CH2 CH1 CH2 G1MAX G2MAX G1MIN G2MIN VF1 VF2 D1CH D2CH N1CH N2CH When only 1ch is A8 used, ch used is set to 2.87V. 2.0 4.5 3.0 4.0 7.5 5.0 6.0 mA 12 7.0 dB 0, 1 3 7 5 Min. gain 500 300 mVp-p kHz 7 1 1 1.8 0, 1 3 7 5 20MHz level 300kHz level -7.0 -5.0 -3.0 dB CH1 Frequency characteristics CH2 CH1 Distortion 1 CH2 CH1 S/N CH2 300k 0, 1 3 500 to 2.87 7 5 7 mVp-p 20M 1 7 1 7 1.0 Vp-p 0.5 Vp-p 5.0 MHz 100k to 1.8 4.2M -1.0 +1.3 dB 0, 1 3 Adjust CONT to obtain 1.0Vp-p at 5 output 7 0, 1 3 7 Test at no signal 5 conditon -40 dB 61 dB -5- CXA1211M Electrical Characteristics Test Circuit A8 0.1 0.01 51k V3 CONT2 OFF OUT2 VCC ON IN2 SW7 V5 10k 10P 8 0.1 OFF SW0 ON S.G. 51 1 7 6 5 3300P VCA2 47 V1 VCA1 2 3 4 CONT1 OUT1 ON OFF SW1 GND IN1 V3 10k 10P 51k 0.1 0.01 V2 -6- CXA1211M Application Circuit When VCA2 is not in use 0.1 8 VCC 7 6 5 3300P VCA2 47 5V VCA1 GND 1 0.1 2 3 4 S.G. 51 CONT 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- CXA1211M Frequency characteristics 1 (When Gain = 0dB) 150 100 50 0 Gain 2.0 0 -2 -4 Phase [degree] -100 -150 -200 -250 -300 -350 0.1 1 Frequency [MHz] 10 -8 -10 -12 -14 -16 -18 100 Frequency characteristics 2 (MAX Gain, MIN Gain) +10 8 MAX 6 4 0 MIN -2 -4 -6 -8 -10 0.1 1 Frequency [MHz] 10 100 -8- Gain [dB] NORMAL 2 Gain [dB] -50 Phase -6 CXA1211M Gain vs. CONT voltage characteristics Room temperature VCC = 5.0V 5 4 3 2 Gain [dB] 1 0 -1 -2 -3 -4 2.0 3.0 CONT [V] 4.0 5.0 Gain vs. Temperature characteristics 0.4 VCC = 5.0V f = 300kHz Adjust to 0dB at 20C 0.3 0.2 0.1 Gain [dB] 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 -20 0 20 40 60 Temperature [C] 80 100 -9- CXA1211M Package Outline Unit: mm 8PIN SOP (PLASTIC) + 0.4 1.25 - 0.15 + 0.4 5.0 - 0.1 8 5 A 0.10 + 0.3 4.4 - 0.1 1 4 1.27 b 0.24 M 0 to 10 (0.15) + 0.1 0.15 - 0.05 b = 0.4 0.03 + 0.03 0.15 - 0.01 + 0.1 b = 0.4 - 0.05 (0.4) DETAILA DETAIL B : SOLDER DETAIL B : PALLADIUM PACKAGE STRUCTURE PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE SOP-8P-L03 SOP008-P-0225 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). - 10 - 0.5 0.2 B 6.4 0.4 + 0.15 0.1 - 0.1 |
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