TA2120FN Schematic ( PDF Datasheet ) - Toshiba Semiconductor

Teilenummer	TA2120FN
Beschreibung	LOW CONSUMPTION CURRENT STEREO GEADPHONE POWER AMPLIFIER FOR PORTABLE CD (3V USE)
Hersteller	Toshiba Semiconductor
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Gesamt 17 Seiten TOSHIBA Bipolar Linear Integrated Circuit SIlicon Monolithic TA2120FN TA2120FN Low Consumption Current Stereo Headphone Power Amplifier for Portable CD (3V Use) The TA2120FN is a low consumption current stereo headphone power amplifier developed for portable CD players (3V). This IC has active bass boost, output limiter, input pin for beep sound. Features · Low consumption current: ICCQ = 1.9 mA (C-CUP) (typ.) ICCQ = 2.6 mA (OCL) (typ.) · Two kinds of gain mode available: GV = 16dB or 8.5dB · Output power (VCC = 2.0 V, f = 1 kHz, THD = 10%, RL = 16 Ω) Po = 8 mW (typ.) · Low noise: Vno = −98dBV (typ.) Weight: 0.14 g (typ.) · Built-in the center amplifier ON/OFF function. (Favorable for low dissipation current in the C-Couple output configuration) · Built-in active bass boost system · Built-in output limiter function · Input pin for beep sound · Excellent ripple rejection ratio · Built-in capacitor for reducing buzz noise · Built-in power mute · Built-in a power on/off switch · Operating supply voltage range (Ta = 25°C): VCC = 1.8~4.5 V 1 2002-04-19 Terminal No. Name Function 19 MT SW Power mute switchover GND/OPEN: Mute off VCC: Mute on 20 PW SW Power on/off switchover VCC: Power on GND/OPEN: Power off Internal Circuit VCC 5 47 kW 19 VCC 5 47 kW 20 TA2120FN Terminal Voltage (V) ¾ ¾ 23 BST SW Bst on/off switchover BST on: OPEN/VCC BST off: GND 5 20 kW 23 ¾ 6 2002-04-19 6 Page Application Circuit 2 (OCL mode) TA2120FN BIAS BST SW OFF ON VCC VCC ON PW ON MT OFF SWOFF SW 24 23 22 21 20 19 18 BST BST BIAS BIAS PW MT MT OUT SW IN SW SW TC BEEP DAC OUT Vol: 10 kW ON OFF ATT SW 17 16 15 14 13 BEEP GND INB INA ATT IN SW TA2120FN BST NF 1 ADD OUT 2 BIAS BIAS RF PW-C PWR MIX ALC ALC IN SW VCC OUTB OUTC OUTA GND OUT IN DET 3 4 5 6 7 8 9 10 11 12 OCL RL RL 0.1 mF ALC SW ON VCC OFF *: Monolithic ceramic capacitor PWR AMP GAIN ATT ON: GV = 8.5dB ATT OFF: GV = 16dB 12 2002-04-19 12 Page
Seiten	Gesamt 17 Seiten
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Besondere Datenblatt

Teilenummer	Beschreibung	Hersteller
TA2120FN	LOW CONSUMPTION CURRENT STEREO GEADPHONE POWER AMPLIFIER FOR PORTABLE CD (3V USE)	Toshiba Semiconductor

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