SINGLE CHIP STEREO CASSETTE PLAYBACK
TDA7273
SINGLE CHIP STEREO CASSETTE PLAYBACK SYSTEM
WIDE OPERATING SUPPLY VOLTAGE (1.8V to 7V) INPUT COUPLING WITHOUT CA...
Description
TDA7273
SINGLE CHIP STEREO CASSETTE PLAYBACK SYSTEM
WIDE OPERATING SUPPLY VOLTAGE (1.8V to 7V) INPUT COUPLING WITHOUT CAPACITORS BUILT-IN DC STEREO VOLUME CONTROL BUILT-IN RIPPLE FILTERS LOW QUIESCENT CURRENT NO EXTERNAL BOUCHEROT CELL MAX OUTPUT CURRENT 70mA PEAK DESCRIPTION The TDA7273 is a monolithic integrated circuit designed for portable cassette players market. It comprises preamplifiers, DC volume control, and headphone drivers.
DIP16 SO16 ORDERING NUMBERS: TDA7273 TDA7273D
BLOCK DIAGRAM
May 1997
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TDA7273
ABSOLUTE MAXIMUM RATINGS
Symbol VS Io Top Tstg , Tj Supply Voltage Output Current (max) Operating Temperature Range Storage & Junction Temperature Range Parameter Test Conditions 9 70 -20 to 70 -40 to +150 Unit V mA °C °C
THERMAL DATA
Symbol Rthj-amb Description Thermal Resistance Junction-ambient Max DIP-16 100 SO-16 200 Unit °C/W
DC CHARACTERISTICS: Tamb = 25°C; VS = 3V; RL = 10KΩ (Preamplifier), RL = 32Ω (Headphone); VIN = 0; VOL control = Vref
Terminal No Terminal Voltage (V) 1 0 2 1.5 3 1.5 4 1.5 5 1.5 6 2.7 7 1.5 8 0 9 3 10 1.5 11 1.5 12 1.5 13 1.5 14 1.5 15 1.5 16 1.5
TEST CIRCUIT
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TDA7273
PIN CONNECTION (Top view)
ELECTRICAL CHARACTERISTICS (Tamb = 25°C, VS = 3V, f = 1KHz, RL = 32Ω Vol. control = 2/3Vref unless otherwise specified)
Symbol VS Id Vref Parameter Supply Voltage Quiescent Current Reference Voltage 1.3 Test Condition Min. 1.8 14 1.49 Typ. Max. 7 20 1.7 Unit V mA V
PREAMPLIFIER SECTION
GVO GV Vo Ib THD Ct EN SVR Open Loop Gain Clos...
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