S1A2221A02 SAMSUNG | Alldatasheet

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Technical content

DUAL LOW NOISE EQUALIZER AMPLIFIER S1A2221A02 INTRODUCTION The S1A2221A02 is a monolithic integrated circuit consisting of a 2-channel pre-amplifier in a 8-pin plastic single in line pack- age. The minimum operating voltage is 2.5V, Making it suitable for low voltage application.

FEATURES

  • Wide operating supply voltage: V DD = 2. 5V − 6V
  • Low noise (V HI = 1.0 µV: Typ)
  • High channel separation
  • Good ripple rejection ratio
  • Minimum number of external parts required

ORDERING INFORMATION

Device Package Operating Temperature S1A2221A02-I0U0 8-SlP −20 °C − +70 °C 8 −SIP INPUT1 NF1 OUTPUT1 V CC GND OUTPUT2 NF2 INPUT2 1 2 3 4 5 6 7 8 AMP1 AMP2

S1A2221A02 DUAL LOW NOISE EQUALIZER AMPLIFIER ABSOLUTE MAXIMUM RATINGS (T a = 25 °C)

ELECTRICAL CHARACTERISTICS

(Ta = 25 °C, V CC = 4V, R L = 10k Ω , R G = 600 Ω, f = 1kHz, NAB, unless otherwise specified) Characteristic Symbol Value Unit Supply Voltage V CC 7.5 V Power Dissipation P D 200 mW Operating Temperature T OPR − 20 − +70 °C Storage Temperature T STG − 40 − +125 °C Characteristic Symbol Test Conditions Min. Typ. Max. Unit Quiescent Circuit Current I CCQ V I = 0 − 2.0 6.0 mA Open Loop Voltage Gain G VO − 65 80 − dB Closed Loop Voltage Gain G VC V O = 0.2V 33 35 37 dB Output Voltage V O THD = 1% 0.4 0.7 − V Total Harmonic Distortion THD V O = 0.2V − 0.1 0.3 % Input Resistance R I − − 150 − k Ω Equivalent Input Noise Voltage V NI R G = 2.2k Ω BW ( −3dB) = 15Hz − 30kHz − 1.0 2.0 V Cross Talk CT R G = 2. 2k Ω 50 65 − dB

DUAL LOW NOISE EQUALIZER AMPLIFIER S1A2221A02 TEST CIRCUIT S1A2221X02 + 1 + 8 6 + INPUT 1 1000p 10 µ/6.3V INPUT 2 1000p 10 µ/6.3V C11 47 µ/6.3V 240 7.5K C10 0.015 µ 100K 10 µ/6.3V R L 10K OUTPUT 2 OUTPUT 1 R L 10K 10 µ/6.3V C8 0.015 µ R 3 100K 47 µ/6.3V V CC R 1 240 47 µ/6.3V 7.5K

S1A2221A02 DUAL LOW NOISE EQUALIZER AMPLIFIER

DUAL LOW NOISE EQUALIZER AMPLIFIER S1A2221A02 APPLICATION CIRCUIT S1A1222X L-CH R/P Head Vcc 470 µ/10V 120K 0.018 µ 47K 0.018 µ 47K 1 µ/50V 1 µ/50V 6.8K 3300p 6.8K 3300p power power 1 µ/50V 1 µ/50V SW (PLAY/REC): PLAY 0 . 0 3 9 µ 0 .0 3 9 µ 56K56K 47 µ/10V 120K 47 µ/10V 682200p2200p R/P Head R-CH 10 µ/25V 10 µ/25V 200K

S1A2221A02 DUAL LOW NOISE EQUALIZER AMPLIFIER NOTES