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