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| YOUDA INTEGRATED CIRCUIT YD5020 LOW VOLTAGE COMPANDER--YD5020 DESCRIPTION The YD5020 contains two variable gain circuits configured for compressing and expanding the dynamic range of an audio signal. One circuit is configured as an expander, while the other circuit can be configured as a compressor or expander. Each circuit has a full wave rectifier to provide average value information to a variable gain cell located in either the input stage or the feedback path. FEATURES *Low voltage operation: Vopr=1.85.0V *Decreasing external component *Built in compressor and expander mute circuit *Unity gain level set a 100mVrms *Response time adjustable BLOCK DIAGRAM 14 Vcc 13 12 11 10 9 8 _ Mute Bais + _ Mute + VB VB Gain RECT Gain RECT Vref 1 2 3 VB 4 5 6 GND 7 WuXi YouDa Electronics Co., Ltd Tel: Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com SHENZHEN OFFICE Tel 86-755-83740369 Fax 86-755-83741418 1 of 4 2006-08-11 Ver 5.0 YOUDA INTEGRATED CIRCUIT PIN NO. 1 2 3 4 5 6 7 SYMBOL Vref EXP MUTE EXP FILTER EXP OUTPUT EXP INPUT VB GND PIN NO. 8 9 10 11 12 13 14 SYMBOL COM FEED COM CF COM INPUT COM OUTPUT COM FILTER COM MUTE Vcc YD5020 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Operating Temperature Storage Temperature (Tamb=25) VALUE 10 410 -20+75 -55+150 UNIT V mW SYMBOL Vcc PD Topr Tstg OPERATION CONDITIONS PARAMETER Supply Voltage Input Frequency Range Compressor Input Voltage Expander Input Voltage (Vcc=3V,Tamb=25,Unless otherwise specified) SYMBOL Vcc fin Vinc Vine VALUE 1.85.0 10020k 700 316 UNIT V Hz mVrms mVrms WuXi YouDa Electronics Co., Ltd 2of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS Parameter Supply Current Compressor 0dB Gain GC0 GC1 Gain ErrorNote GC2 GC3 GC4 Distortion Noise Output Ripple Rejection Ratio Cross TalkCE Muting Attenuation Input Impedance Expander Section 0dB Gain Ge0 Ge1 Ge2 Gain ErrorNote Ge3 Ge4 Distortion Noise Output Ripple Rejection Ratio CrossTalkEC Muting Attenuation Input Impedance THDe VN0e RRe CTe Atte Rine Vine=10mV-20dB Vine=3.16mV-30dB Vine=100mVf=1kHz Rg=600 Vcc=1kHz3V(DC)100mV Vine=100mVCOM Output Vine=316mVVpin2=GND PIN 4 -1 -1 0 0 0.4 0.06 -58 -34 -70 4.3 Vine=100mV0dB Vine=178mV5dB Vine=31.6mV-10dB -1.5 -1 -1 0 0 0 THDC VN0c RRC CTc Attc Rinc Vinc=100mV0dB Vinc=316mV10dB Vinc=10mV-20dB Vinc=1mV-40dB Vinc=100V-60dB Vinc=100mVf=1kHz Rg=600 Vcc=1kHz3V(DC)100mV Vinc=100mVEXP Output Vinc=100mVVpin13=GND PIN 10 -1.5 -1.0 -1.0 -1.0 -1.0 0 0 0 0 0 0.3 0.8 -25 -72 -65 20 Symbol Iccq YD5020 (Vcc=3V,Tamb=25,f=1kHz,Unless otherwise specified) Min. Typ. 3.1 Max. Unit mA Test Condition Vin=0 1.5 1.0 1.0 1.0 1.0 1.5 5.0 -18 -50 -50 dB dB dB dB dB % mV dB dB dB k 1.5 1 1 1 1 1.5 5.0 -38 -24 -50 dB dB dB dB dB % mV dB dB dB k Note1 Gain Error=Vout-20dBVinxK Compressor: K=0.5 Expander: K=2 WuXi YouDa Electronics Co., Ltd 3of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT APPLICATION CIRCUIT COM MUTE Vcc COM OUT COM IN YD5020 + 10 14 Vcc 10n 13 2 + 12 10k + 1 + 10 1 9 + 10 + 8 1 11 Vref 1 2 + 2 EXP MUTE 3 4 + 10k 1 EXP OUT 5 + 4.7 EXP IN VB 6 + 10 GND 7 OUTLINE DRAWING WuXi YouDa Electronics Co., Ltd 4 of 4 Website: www.e-youda.com |
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