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TA2069AF TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2069AF 3V Stereo Headphone Amplifier (3V USE) The TA2069AF is developed for play-back stereo headphone equipments (3V use). It is built in dual preamplifiers, dual OCL power amplifiers, motor governor, DC volume control and volume limiter etc. Features * Built-in preamplifier Input coupling condenser-less Built-in input capacitor for reducing buzz noise Low noise: Vni = 1.2 Vrms (typ.) Built-in power amplifier OCL (output condenser-less) Voltage gain : GV = 31dB (typ.) Built-in motor governor Current proportion type Built-in DC volume control function DC volume maximum attenuation : ATT = 82dB (typ.) Built-in volume limiter function Built-in bass boost function Operating supply voltage range (Ta = 25C) PRE + PW: VCC (opr) = 1.8~3.6V GVN: VCC (opr) = 2.1~3.6V (motor voltage = 1.8V) Low supply current (VCC = 3V, f = 1kHz, Ta = 25C, typ.) PRE + PW Output Power 0.1mW x 2 14.2mA 12.5mA 0.5mW x 2 19.5mA 16.5mA * Weight: 0.32g (typ.) * * * * * * No Signal RL = 16 RL = 32 9.5mA 9.5mA GVN: ICC = 2.5mA 1 2002-10-30 TA2069AF Block Diagram OFF M ON VREF INB NFB 24 23 22 PRE OUTB 21 20 PW INB 19 RF IN 18 VLIM VCC GVN VCC Rt 17 16 15 14 GVN CTL 13 GVN OUT RIPPLE PREB VOL. VREF LIMITER FILTER VOL. PW B PREA VOL. CONTROL PW A PW C 1 PRE GND 2 INA 3 NFA 4 PRE OUTA 5 PW INA 6 VCTL 7 OUTB 8 OUTA 9 10 OUTC PW INC 11 PW GND 12 GVN GND OUTA RL BST SW VREF BST : OFF OUTC RL OUTB 2 2002-10-30 TA2069AF Terminal Explanation Terminal Voltage: Typical terminal voltage at no signal with test circuit (VCC = 3V, Ta = 25C) No. 1 2 23 3 22 4 Terminal Name PRE GND INA INB NFA NFB PRE OUTA Output of preamplifier 21 PRE OUTB 5 10K Function The GND, except for power drive stage and motor governer stage. Input of preamplifier Internal Circuit RF Terminal Voltage (V) 0 3 2 500 1.2 500 NF of preamplifier VREF VCC 1.2 4 1.2 5 PW INA Input of power amplifier RF VREF 1.2 20 PW INB The terminal of DC volume control This terminal can be used also for VLIM terminal. The terminal of volume limiter level control This terminal can be used also for VCTL terminal. 6 VCTL VCC VREF VREF 6 18 18 VLIM 7 8 9 OUTB OUTA OUTC Output of power amplifier VCC 7 1.2 3 2002-10-30 TA2069AF No. Terminal Name Function Internal Circuit 20k VREF Terminal Voltage (V) 10 10 PW INC Input of center amplifier 1.2 30k VREF 2k 11 12 PW GND GVN GND GND for power drive stage GND for motor governor stage M 0 0 13 GVN OUT Motor terminal 16 15 14 13 14 GVN CTL The terminal of motor speed control 15 Rt The terminal of amateur compensation resistor 16 GVN VCC VCC for motor governor stage. VCC for preamplifier stage and power amplifier stage. 3 17 VCC 3 19 RF IN 24 VREF 10k Reference voltage Preamplifier and power amplifier operate on this reference. 1.3k 4.7k 4k Ripple filter of power supply 19 24 VCC 2.5 1.2 4 2002-10-30 TA2069AF Application Note 1. VCC and GND This IC has two VCC terminals and three GND terminals. Pattern layout should be designed carefully to reduce the common impedance. VCC VCC (pin 17): Preamplifier stage and power amplifier stage. GVN VCC (pin 16): Motor governor stage. GND PRE GND (pin 1): Preamplifier stage and power amplifier stage except the power drive stage. PW GND (pin 11): Power drive stage of power amplifier. GVN GND (pin 12): Motor governor stage. 2. VREF It is necessary to stabilize the VREF circuit, the internal circuit operate on this reference. 3. Preamplifier Input signal should be applied to VREF standard, otherwise pop noise become bigger when VCC is turned on and off. 4. Power amplifier It is necessary to insert the coupling capacitor through the PW IN terminal. In case that DC current or DC voltage is applied to the PW IN terminal, the internal circuit has unbalance and the power amplifier doesn't operate normally. Maximum Ratings (Ta = 25C) Characteristic Supply voltage Power dissipation Output current (PW AMP.) Output current (GVN) Operating temperature Storage temperature PD Symbol VCC (Note 1) (Note 2) IO (PW) IO (GVN) Topr Tstg Rating 4 400 925 200 700 -25~75 -55~150 Unit V mW mA mA C C (Note 1) IC only : Derated above Ta = 25C in the proportion 3.2mW / C (Note 2) IC + PCB (TOSHIBA typical PCB): Derated above Ta = 25C in the proportion 7.4mW / C 5 2002-10-30 TA2069AF Electrical Characteristics Unless otherwise specified, VCC = 3V, Ta = 25C, f = 1kHz, SW2: a, SW5: a Preamplifier: Rg = 2.2k, RL = 10k, SW1: ON, SW3: b, SW4: b Power amplifier: Rg = 600, RL = 16, Vol: Max, SW1: OPEN, SW3: a, SW4: a Motor governor: Im = 100mA, SW1: OPEN, SW3: b, SW4: b Characteristic Quiescent supply current Open loop voltage gain Closed loop voltage gain maximum output voltage Pre AMP. Total harmonic distortion Equivalent input noise voltage Cross talk Ripple rejection ratio Voltage gain 1 Channel balance Voltage gain 2 Output power 1 Output power 2 Power AMP. Total harmonic distortion Output noise voltage 1 Output noise voltage 2 Ripple rejection ratio Cross talk DC volume maximum attenuation Supply current Saturation voltage Reference voltage Motor Governor Reference voltage fluctuation 1 Reference voltage fluctuation 2 Reference voltage fluctuation 3 Current ratio Current ratio fluctuation 1 Current ratio fluctuation 2 Current ratio fluctuation 3 Symbol ICCQ GVO GVC Vom THD1 Vni CT1 RR1 GV1 CB GV2 Po1 Po2 THD2 Vno1 Vno2 RR2 CT2 ATT ICC VCE (sat) VREF VREF1 VREF2 VREF3 K K1 K2 K3 Test Circuit 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 VCC = 2.1~3.6V Im = 25~250mA Ta = -25~75C Test Condition PRE + PW + GVN Vin = 0, VOL: Min, SW4: b Vo = -10dBV, SW2: b Vo = -10dBV THD = 1% Vo = -10dBV Rg = 2.2k, SW1: OPEN BPF = 20Hz~20kHz, NAB (GV = 35dB, f = 1kHz) Vo = -10dBV fr = 100Hz, Vr = -20dBV Vo = -10dBV Vo = -10dBV, SW5: b RL = 16, THD = 10% RL = 32, THD = 10% Po = 1mW Rg = 600, SW3: b BPF = 20Hz~20kHz Rg = 600, SW3: b SW5: b, BPF = 20Hz~20kHz fr = 100Hz, Vr = -20dBV Vo = -10dBV Vo = -10dBV SW4: ab (VOL: Maxmin) Im = 0 Im = 200mA Im = 100mA VCC = 2.1~3.6V Im = 25~250mA Ta = -25~75C Min. 3/4 3/4 3/4 550 3/4 3/4 3/4 3/4 29 -1.5 3/4 17 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 0.76 3/4 3/4 3/4 34.5 3/4 3/4 3/4 Typ. 12 86 35 720 0.02 1.2 70 48 31 0 5 28 20 0.5 270 45 52 32 82 2.5 3/4 0.81 0.25 0.003 0.005 37.5 0.25 0.08 0.005 Max. 18 3/4 3/4 3/4 0.3 2.4 3/4 3/4 33 +1.5 3/4 3/4 3/4 3/4 400 3/4 3/4 3/4 3/4 4.3 0.5 0.86 3/4 3/4 3/4 40.5 3/4 3/4 3/4 %/V % / mA % / C Unit mA dB dB mVrms % Vrms dB dB dB dB dB mW mW % Vrms Vrms dB dB dB mA V V %/V % / mA % / C 6 2002-10-30 TA2069AF Test Circuit Rg = 600 PW INB VREF PRE OUTB 1 F 10k 1 F (a) (b) SW3b 600 VREF 4.3k (a) SW5 47 F 8.2k (b) 47 F 180 5 VCC SW2b 220 F (b) (a) 18 k PRE INB SW1b 1000pF 1000pF 2.2k 22 F 470 470 k 8200 pF 100 F Rg = 600 22 F 1 F 3.6 k 5 k 2.2k Rg = 600 PRE INA 24 VREF 23 INB 22 NFB 21 PRE OUTB 20 PW INB 19 RF IN 18 VLIM 17 PW VCC 16 GVN VCC 15 Rt 14 GVN CTL 13 GVN OUT SW1a TA2069AF PRE GND INA NFA PRE OUTA PW INA VCTL OUTB OUTA OUTC PW INC PW GND GVN GND 1 2 3 470k 4 5 6 7 8 9 10 11 12 22F 470 8200 pF 18 k SW4 (a) (b) PW OUTA RL PW OUTC RL PW OUTB (a) 220F (b) SW2a 10 k 1 F 1 F Rg = 600 10 k PRE OUTA (a) SW3a PW INA VREF (b) 600 VREF 7 2002-10-30 TA2069AF Characteristic Curves Unless otherwise specified VCC = 3V, Ta = 25C, f = 1kHz Preamplifier: Rg = 2.2k, RL = 10k Power amplifier: Rg = 600, RL = 16, Vol = max. Motor governor: Im = 100mA VO (DC) - VCC 2.5 ICCQ, ICC - VCC 20 Quiescent supply current ICCQ (mA) Supply current ICC (mA) (V) ICCQ (PRE + PW + GVN, Vol: MIN.) Output DC voltage VO (DC) 15 2.0 1.5 VREF PW OUT, PRE OUT 1.0 10 5 ICC (GVN: Im = 0) 0.5 0 0 1.5 2.0 2.5 3.0 3.5 4.0 0 1.5 2.0 2.5 3.0 3.5 4.0 Supply voltage VCC (V) Supply voltage VCC (V) PRE 100 GVO, GVC - f Vo = -10dBV 40 PRE CT - f Vo = -10dBV Open loop voltage gain GVO (dB) Closed loop voltage gain GVC (dB) 80 GVO 60 CT (dB) Cross talk 10k 100k 50 60 40 20 GVC 70 0 10 100 1k 80 10 100 1k 10k 100k Frequency f (Hz) Frequency f (Hz) PRE Maximum output voltage Vom (mVrms) 1000 THD = 1 % Vom - VCC Total harmonic distortion THD (%) 10 3 1 PRE THD - Vo 500 f = 10kHz 3 f = 100kHz 0.1 0.03 0.01 1 f = 1kHz 200 100 0 1.5 2.0 2.5 3.0 3.5 4.0 10 100 1000 10000 Supply voltage VCC (V) Output voltage Vo (mVrms) 8 2002-10-30 TA2069AF PRE (Vrms) 20 Vni - VCC 10 20 30 40 50 60 70 PRE fr = 100Hz Vr = -20dBV RR - VCC 10 Vni Equivalent input noise voltage 5 2 1 0.5 0 Ripple rejection ratio RR 1.5 2.0 2.5 3.0 3.5 4.0 (dB) 80 0 1.5 2.0 2.5 3.0 3.5 4.0 Supply voltage VCC (V) Supply voltage VCC (V) PW 60 Vo = - 10dBV GV - f PW CT - f Vo = -10dBV 0 (dB) CT (dB) 50 10 BST = ON 20 BST = OFF Voltage gain GV Cross talk 10k 100k 40 BST = ON BST = OFF 30 40 50 30 20 20 100 1k 60 20 100 1 10 100 Frequency f (Hz) Frequency f (Hz) PW 100 THD = 10% Po - VCC Total harmonic distortion THD (%) 30 PW VCC = 3V RL = 16 THD - Po Output power Po (mW) 10 RL = 16 32 10 3 f = 10kHz 1 100Hz 1kHz 0.2 0.2 2 0 1.5 2.0 2.5 3.0 3.5 4.0 1 10 100 Supply voltage VCC (V) Output power Po (mW) 9 2002-10-30 TA2069AF PW 10 Volume ratio - 10 == Vo - Vol. Resistance (PIN(6) - GND) 500 Volume resistance PW Volume ratio 200 = Vno - Vol. Resistance (PIN(6) - GND) Volume resistance (dB) 0dB = -10dBV Output voltage Vo - 30 Vno Output noise voltage 0.2 0.4 0.6 0.8 1 (Vrms) 100 - 50 50 - 70 20 - 90 0 10 0 0.2 0.4 0.6 0.8 1 Volume ratio Volume ratio PW 40 Volume ratio = 50 RR - Vol. (mV) Resistance (PIN(6) - GND) Volume resistance 7.5 GVN VREF, K - VCC Ripple rejection ratio RR (dB) fr = 100Hz, Vr = -20dBV Reference voltage fluctuation VREF Current ratio fluctuation K 5.0 2.5 VREF 60 0.0 K - 2.5 70 - 5.0 80 0 0.2 0.4 0.5 0.8 1 - 7.5 1.5 2.0 2.5 3.0 3.5 4.0 Volume ratio Supply voltage VCC (V) (mV) GVN 10 VREF, K - Im 20 GVN ICCQ, ICC - Ta Reference voltage fluctuation VREF Current ratio fluctuation K 5 ICCQ (mA) ICC (mA) 15 ICCQ (PRE + PW + GVN, Vol.=MIN) VREF 0 K Quiescent supply current Supply current 10 -5 5 ICC (GVM : Im = 0) -10 0 50 100 150 200 250 300 0 - 20 0 20 40 60 80 Motor current Im (mA) Ambient temperature Ta (C) 10 2002-10-30 TA2069AF VO (DC) - Ta 1.5 40 PRE GV : Vo = -10dBV Vom : THD = 1% 38 GV , Vom - Ta 800 760 Vom Output DC voltage VO (DC) VREF, PW OUT, PRE OUT 1 GV (dB) 36 GV 34 720 680 0.5 32 640 0 - 20 0 20 40 60 80 30 - 20 0 20 40 60 600 80 Ambient temperature Ta (C) Ambient temperature Ta (C) PRE 1 THD - Ta 35 PW GV : Vo = -10dBV Po : THD = 10% GV, Po - Ta 50 Total harmonic distortion THD (%) Vo = -10dBV (dB) 0.1 40 GV 30 Voltage gain GV 0.01 Po 20 0.001 - 20 0 20 40 60 80 25 - 20 0 20 40 60 10 80 Ambient temperature Ta (C) Ambient temperature Ta (C) PW 10 Po = 1mW THD - Ta (mV) 6 GVN VREF, K - Ta Total harmonic distortion THD (%) 2 1 0.5 Reference voltage fluctuation VREF K Current ratio fluctuation 5 4 2 K 0 VREF -2 0.2 -4 0.1 - 20 0 20 40 60 80 -6 - 20 0 20 40 60 80 Ambient temperature Ta (C) Ambient temperature Ta (C) 11 2002-10-30 Output power 30 Po (mW) Maximum output voltage Vom Voltage gain (mVrms) (V) TA2069AF Application Note VCC 0.1 F 22 F PRE INB 1000pF 1000pF 2.2k 470 k 8200 pF 18 k 470 k 1 F 100 F 4.3k 47 F 8.2k 180 1 F M 3.6 k 5 k VREF 2.2k 22 F 24 VREF 23 INB 22 NFB 21 PRE OUTB 20 PW INB 19 RF IN 18 VLIM 17 PW VCC 16 GVN VCC 15 Rt 14 GVN CTL 13 GVN OUT PRE INA TA2069AF PRE GND INA NFA PRE OUTA PW INA VCTL OUTB OUTA OUTC PW INC PW GND GVN GND 1 2 3 470k 18 k 4 1 F 5 6 33k 7 33k 8 9 10 11 12 OUTA RL OUTC 12 k 0.1 F 0.1 F 10k VREF 0.1 F 22 F 470 8200 pF BST SW BST : OFF RL OUTB 12 2002-10-30 TA2069AF Package Dimensions Weight: 0.32g (typ.) 13 2002-10-30 TA2069AF RESTRICTIONS ON PRODUCT USE 000707EBA * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 14 2002-10-30 |
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