SA2011 MIC AMP IC DESCRIPTION SA2011 is suitable for audio MIC amplifier of portable cassette tape recorder and karaoke. FEATURES * Built in ALC DET Circuit. * Built in NFB resistance. (Voltage gain is fixed) Gv = 47dB ( Typ.) : f=1kHz, ALC OFF * ALC Level: Vout(ALC) = 0.6Vrms(Typ.) * ALC Range: RALC = 58dB(Typ.) * Operating Supply Voltage Range: VCC=4V~14V APPLICATIONS ORDERING INFORMATION * Cassette tape recorder, karaoke, etc… Device SA2011 Package SIP8-7 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATING (Tamb=25°C) Characteristics Symbol Rating Unit VCC max 14 V Pd max 900 mW Operating Temperature Topr –25 ~ +75 °C Storage Temperature Tstg –55 ~+150 °C Maximum Supply Voltage Allowable Power Dissipation HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.3 2006.05.22 Page 1 of 4 SA2011 ELECTIVAL DHARACTERISTICS (VCC=7V, fr =1kHz, RL=10kΩ, Tamb=25°C) Characteristics Symbol Quiescent Current ICCQ Test condition VIN =0, ALC ON Min. Typ. Max. Unit -- 5.0 8.0 mA Voltage Gain Gv -- 45.5 47 48.5 dB Maximum Output Voltage Vom THD = 1% 1.0 1.3 -- Vrms Total Harmonic Distortion THD -- 0.2 0.5 % 0.7 0.8 0.9 Vrms 40 58 -- dB -- 0.05 -- s -- 2 -- s -30 -46 -- dB -- 20 -- kΩ -- 1.4 3.0 ALC Level VOUT= 0.3Vrms BW = 400Hz~30kHz Vout(ALC) VIN= 0.0178Vrms(-35dBv) ALC Range RALC Attack Time TATK Recovery Time TRCV Ripple Rejection Ratio R.R. Input Resistance RIN Equivalent Input Noise Voltage Vni 3dB up VIN=1.41mVrms(-57.0dBV) →0.014Vrms(-37.0dBV) VIN=0.014Vrms(-37.0dBV) →0.447mVrms(-67.0dBV) f=100Hz,Vripple = 0.1Vrms BW = 20Hz~20kHz Gv = 47dB, Rg = 2.2kΩ V PIN CONFIGURATION Note: When the seal is looked in positive direction, the left pin on the bottom is the first pin (Pin 1). PIN DESCRIPTIONS Pin no. Pin name Description 1 NC No connection. 2 IN- Feedback port. 3 IN Positive input of AMP. 4 GND Ground. 5 OUT Output of AMP. 6 DETOUT 7 VCC Output of ALC DET, connected to a 10 F capacitance . VCC. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.3 2006.05.22 Page 2 of 4 SA2011 FUNCTION DESCRIPTION 1. This IC built-in ALC detect circuit. When input large signal, the ALC become high level, and control the output amplitude; when input small signal, the ALC is shut down, output gain is fixed. 2. Voltage gain of amplifier is determined by the built-in negative feedback resistance. TEST CIRCUIT PACKAGE OUTLINE SIP8-7 Unit: mm 45° 0.7MAX 8.00±0.30 6.50±0.25 19.2±0.3 2.54 0.5 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn 3.40±0.30 0.27±0.07 1.20 2.80±0.25 REV:1.3 2006.05.22 Page 3 of 4