CXA1821M Sony, CXA1821M Datasheet
CXA1821M
Available stocks
Related parts for CXA1821M
CXA1821M Summary of contents
Page 1
... RF Amplifier for CD Players Description The CXA1821M developed for compact disc players. This IC incorporates an APC circuit and RF, focus error, and tracking error amplifiers for 3- spot optical pickup output. (The voltage-converted optical pickup output is supported.) Features • Low power consumption ( ±2 • ...
Page 2
... VC 6 30k – 2 – Description 55.7k Output pin of APC amplifier. 55k Input pin of APC amplifier. 10k 25p Input pin of RF and 174k FE amplifier for Pins and 6; focus 87k bias adjustment for 25p 8 Pin 14 164k 14 FE BIAS CXA1821M ...
Page 3
... 123k 147 13 400 – 3 – CXA1821M Description Input pin of tracking error amplifier for V CC Pins 8 and 9. An external resistor for 147 V-I conversion 11 should be connected because these pins are for current input. 23.8k Gain adjustment of input signal from Pin 9 for Pins 10 and 11 ...
Page 4
... 147 – 4 – CXA1821M Description Output pin of focus error amplifier. Output pin of RF amplifier. Equalizing pin is used of RF amplifier. Frequency response can be adjusted by connecting CR to this pin. VC ON/OFF selection pin of APC amplifier. ON for V and OFF ...
Page 5
... Measurement amplifier RF No. Measurement amplifier FE amplifier TE – 5 – CXA1821M APC amplifier Center ...
Page 6
... Electrical Characteristics Measurement Circuit – 6 – CXA1821M ...
Page 7
... B I-V 4 30k I-V 30k I-V 30k D GND 24k RF SUMMING AMP 28k 24k 10k 24k 4.9k 24k VC VC 30k 25p 174k FOCUS ERROR AMP 25p 164k 87k VC – 7 – RFE 17 5.6k 22k RF EQAMP RFO RFOUT 16 7. FEOUT V CC FOCUS FE BIAS 14 47k BIAS GND CXA1821M ...
Page 8
... PD IC when left open 260k 26k VC 13k 23.8k 23.8k 12p VC 12p 56k 10k 55k 10k 10k VREF 1.25V – 8 – 18 LC/PD 123k TE 13 TRACKING ERROR AMP 123k TRK E GAIN VC 22k EO 11 LDON 19 56k CXA1821M TEOUT 22k , APC is CC MICRO COMPUTER ...
Page 9
... The output impedance is approximately 147 . Connect this circuit to GND when used at dual power supply. 30k 30k Notes on Operation Power supply The CXA1821M can be used either at dual power supply or single power supply. The table below shows the connection of power supply for each case. Dual power supply Single power supply V V ...
Page 10
... 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 and other right due to same. * Connect Pin Connect Pin – 10 – CXA1821M when LC is used. CC when LC is used. CC ...
Page 11
... RF Amp 100 mV input A+B+C+D input Short between VC and GND 1k 10k 100k Frequency (Hz) – 30 2.5V Supply voltage 2.5V FE Amp 260mVp-p input A+C input A+C+B+D input B+D input Short between VC and GND – 40 – 50 – 60 10k 100k 100 – 11 – 10M FE amplifier frequency errer characteristics 1k 10k Frequency (Hz) CXA1821M 100k ...
Page 12
... TE amplifier frequency error characteristics 2.5V 1k 10k Frequency (Hz) APC I/O voltage characteristics Supply voltage 2.5V APC ON APC OFF Short between VC and GND 100 200 Input DC voltage (mV) – 12 – CXA1821M 150k 8 F 150k 13k 26k 10k 100k Frequency (Hz) 100k 300 ...
Page 13
... Package Outline Unit 0.45 0.1 SONY CODE SOP-20P-L01 *SOP020-P-0300-A EIAJ CODE JEDEC CODE 20PIN SOP (PLASTIC) 300MIL +0.4 12.45 -0 1.27 0.12 M PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT – 13 – +0.4 1.85 -0.15 0.15 +0.2 0.1 -0.05 +0.1 0.2 -0.05 EPOXY RESIN SOLDER PLATING COPPER ALLOY 0.3g CXA1821M ...
Page 14
... JEDEC CODE LEAD PLATING SPECIFICATIONS ITEM SPEC. LEAD MATERIAL COPPER ALLOY SOLDER COMPOSITION Sn-Bi Bi:1-4wt% PLATING THICKNESS 5-18 m 1.85 -0.15 11 0.1 -0.05 10 +0.1 1.27 0.2 -0.05 0.12 M PACKAGE STRUCTURE PACKAGE MATERIAL EPOXY RESIN LEAD TREATMENT SOLDER PLATING LEAD MATERIAL COPPER ALLOY 0.3g PACKAGE WEIGHT – 14 – CXA1821M +0.4 0.15 +0.2 Sony Corporation ...