TA2152FNG TOSHIBA Bipolar Linear IC Silicon Monolithic TA2152FNG Low Current Consumption Headphone Amplifier (for 1.5-V/3-V Use) The TA2152FNG is a headphone amplifier of low current consumption type developed for portable digital audio. It is especially suitable for portable CD players, portable MD players etc. Features • Low current consumption • The power drive stage can be driven using a single battery. As a result, overall current consumption is low. • Weight: 0.14 g (typ.) Built-in center amplifier switch For the output-coupling type, the consumption current has been decreased still further. • Current value (VCC1 = 2.4 V, VCC2 = 1.2 V, f = 1 kHz, RL = 16 Ω, Ta = 25°C, typ.) • Output-coupling type • No Signal: ICC (VCC1) = 0.4 mA, ICC (VCC2) = 0.3 mA • 0.1 mW × 2 ch: ICC (VCC1) = 0.5 mA, ICC (VCC2) = 2.2 mA • 0.5 mW × 2 ch: ICC (VCC1) = 0.5 mA, ICC (VCC2) = 5.0 mA • OCL type • No Signal: ICC (VCC1) = 0.7 mA, ICC (VCC2) = 0.7 mA • 0.1 mW × 2 ch: ICC (VCC1) = 0.7 mA, ICC (VCC2) = 4.5 mA • 0.5 mW × 2 ch: ICC (VCC1) = 0.8 mA, ICC (VCC2) = 10.0 mA • Output power: Po = 8 mW (typ.) (VCC1 = 2.4 V, VCC2 = 1.2 V, f = 1 kHz, RL = 16 Ω, THD = 10%, Ta = 25°C) • Built-in beep function • Built-in low-pass compensation (output-coupling type) • Built-in mute switch • Built-in power switch • Operating supply voltage range (Ta = 25°C) VCC1 (opr) = 1.8 V~4.5 V VCC2 (opr) = 0.9 V~4.5 V 1 2006-04-19 TA2152FNG Block Diagram (of OCL Application) 24 OUT ADJ 23 BIAS IN 22 ON ON OFF OFF BIAS BEEP MUTE PW C-AMP GND SW SW SW OUT IN 21 20 19 18 17 16 RF IN C-Amp SW Beep MUTE VCC1 INB TC 15 14 13 PW/Mute SW BIAS PW A 1 NC 2 NC 3 BEEP OUTB 4 PW C OUTB 5 EQB 6 OUTC PW B 7 RL PW GND 8 EQA 9 10 11 12 INA OUTA BEEP VCC2 OUTA RL 2 2006-04-19 TA2152FNG Pin Descriptions Pin Voltage: Typical pin voltage for test circuit when no input signal is applied (VCC1 = 2.4 V, VCC2 = 1.2 V, Ta = 25°C) Pin No. Function Internal Circuit Pin Voltage (V) ⎯ ⎯ Name 1 NC 2 NC 3 BEEP OUTB Not connected VCC2 ⎯ Outputs for beep signal 10 BEEP OUTA 4 OUTB 6 OUTC 9 OUTA 7 PW GND 10 11 VCC2 Outputs from power amplifier 0.6 9 GND for power drive stage 0 7 11 VCC2 5 EQB 1.2 VCC for power drive stage 20 kΩ Low-pass compensation pins 8 EQA 12 INA 0.6 12 9 Inputs to power amplifier 5 kΩ 14 VCC1 VCC for everything other than power drive stage 19 BIAS OUT Bias circuit output 22 RF IN Ripple filter input 23 BIAS IN Bias circuit output OUT ADJ DC output voltage adjustment Either connect this pin or leave it open depending on the level of VCC2. If the power supply of a 1.5 V system is applied to VCC2. connect this pin to BIAS IN (pin 23). If the power supply of a 3 V system is applied to VCC2, leave this pin open. 0.6 43 kΩ 8 2.4 VCC2 0.6 47 kΩ 15 kΩ INB 22 3 1.1 VCC1 24 14 23 19 62 kΩ 13 24 15 kΩ 0.6 0.6 2006-04-19 TA2152FNG Pin No. Function Pin Voltage (V) Internal Circuit Name VCC1 15 MUTE TC 15 Mute smoothing Reduces popping noises during switching. ⎯ VCC1 100 kΩ PW SW ⎯ 10 kΩ 16 16 Power switch IC ON :H level IC OFF :L level 39 kΩ Refer to application note (6) 17 MUTE SW VCC1 Mute switch Mute OFF: L level Mute ON: H level 62 kΩ 17 ⎯ Refer to application note (6) 18 BEEP IN Beep signal input If the beep function is not used, this pin should be connected to GND. 20 GND GND for everything other than power drive stage 10 kΩ 16 ⎯ ⎯ 0 VCC1 21 C-AMP SW Center amplifier switch C-Cup type: GND OCL type: Open 21 ⎯ to center amplifier 4 2006-04-19 TA2152FNG Application Notes (1) Beep function In Power Mute Mode, the beep signal from the microcomputer or other controlling device is input on the BEEP IN pin (pin 18). This signal is output as a current which flows to the load via the BEEP output pin (pin 3/10). The beep level is set to Vo = −50dBV (RL = 16 Ω (typ.) ). For the beep signal timing, please refer to Figure 1. ON PW SW OFF ON MUTE SW OFF BEEP OUT OCL type Output-coupling type 100 ms 100 ms 10 ms 100 ms 200 ms 100 ms 10 ms 100 ms Figure 1 Timing chart for beep and output signals (2) Low-cut compensation For output-coupling type, the low-frequency range can be decreased using an output-coupling capacitor and a load (fc = 45 Hz at C = 220 µF, R = 16 Ω). However, since the capacitor is connected between the IC’s output pin (pin 4/9) and EQ pin (pin 5/8), the low-frequency gain of the power amplifier increases, enabling low-cut compensation to be performed. For the response of capacitors of different values, please refer to Figure 2. RES − f 4 Response (dB) 2 0 0.18 µF 0.22 µF −2 0.33 µF −4 0.47 µF 0.68 µF −6 No compensation −8 20 50 100 200 Frequency 500 1k 2k f (Hz) Figure 2 Capacitor response 5 2006-04-19 TA2152FNG (3) Adjustment of DC output voltage Please perform the OUT ADJ pin (pin 24) as follows by the power supply of VCC1 and VCC2. • If a boost voltage is applied to VCC1, VCC2 is connected to a battery and the difference between VCC1 and VCC2 is greater than or equal to 0.7 V, short pins 23 and 24 together. In this case the DC output voltage will be • VCC2 . 2 If the difference between VCC1 and VCC2 is less than 0.7 V, or if VCC1 and VCC2 are connected to the same power supply, leave pin 24 open. In these cases the DC output voltage will be VCC2 − 0.7 V . 2 However, when the voltage level of VCC2 is high, the DC output voltage is will be set to approximately 1.4 V. (4) RF IN pin The ripple rejection ratio can by improved by connecting a capacitor to this pin. Connection of a capacitor is recommended, particularly for output-coupling type. RR − C (RF IN) 30 Ripple rejection ratio RR (dB) Output-coupling type 40 50 60 70 VCC1 = 2.4 V VCC2 = 1.2 V (ripple signal applied) 80 fr = 100 Hz Vr = −20dBV BIAS IN = 4.7 µF Open 0.1 0.2 0.5 RF IN capacitance 1 2 C (µF) 5 10 Figure 3 Improvement of ripple rejection ratio (5) Output application of power amplifier For output-coupling type the center amplifier is not used with the result that current consumption is low. Please set the C-AMP SW pin (pin 21) accordingly. Output-coupling type: Pin 21 is connected to GND. OCL type: Pin 21 is open. 6 2006-04-19 TA2152FNG (6) Switching pins (a) PW SW The device is ON when this pin is set to High. To prevent the IC being turned ON by external noise, it is necessary to connect an external pull-down resistor to the PW SW pin. The pin is highly sensitive. (b) MUTE SW If the MUTE SW pin is fixed to High, current will flow through the pin, even when the PW SW pin is in OFF Mode. To prevent the IC being turned ON by external noise, it is necessary to connect an external pull-down resistor. The pop noise heard when the MUTE SW switch is turned ON or OFF can be reduced by connecting an external capacitor to the MUTE TC pin. (c) Switch sensitivity (Ta = 25°C) PW SW MUTE SW 5 5 4.5 V 4.5 V 4 1.5 V 1 3 2 H 1.0 V 1 0.3 V 0 0 V17 2 H Pin voltage V16 3 Pin voltage (V) (V) 4 1 0.3 V L 2 Supply voltage 3 4 VCC1 0 0 5 (V) 1 L 2 Supply voltage PW SW 3 VCC1 4 5 (V) MUTE SW H level IC ON H level Mute ON L level IC OFF L level Mute OFF Figure 4 Switch sensitivity (7) Miscellaneous The following capacitors must have excellent temperature and frequency characteristics. • Capacitor between VCC1 (pin 14) and GND (pin 20) • Capacitor between VCC2 (pin 11) and PW GND (pin 7) • Capacitor between BIAS IN (pin 23) and GND (pin 20) • Capacitor between BIAS OUT (pin 19) and GND (pin 20) • Capacitor between RF IN (pin 22) and GND (pin 20) 7 2006-04-19 TA2152FNG Absolute Maximum Ratings (Ta = 25°C) Characteristic Symbol Rating Supply voltage 1 VCC1 4.5 Supply voltage 2 VCC2 4.5 Unit V Output current Io (peak) 100 mA Power dissipation PD (Note) 500 mW Operating temperature Topr −25~75 °C Storage temperature Tstg −55~150 °C Note: Derated by 4 mW/°C above Ta = 25°C Electrical Characteristics (Unless otherwise specified VCC1 = 2.4 V, VCC2 = 1.2 V, Rg = 600 Ω, RL = 16 Ω, f = 1 kHz, Ta = 25°C, SW1: a, SW2: b, SW3: a) Characteristic Quiescent supply current Power supply current during drive Symbol Test Conditions Min Typ. Max ICCQ1 IC OFF (VCC1), SW1: b ⎯ 0.1 5 ICCQ2 IC OFF (VCC2), SW1: b ⎯ 0.1 5 ICCQ3 OCL, Mute ON (VCC1), SW2: a ⎯ 400 600 ICCQ4 OCL, Mute ON (VCC2), SW2: a ⎯ 650 1400 ICCQ5 C-Cup, Mute ON (VCC1), SW2: a ⎯ 170 250 ICCQ6 C-Cup, Mute ON (VCC2), SW2: a ⎯ 85 170 ICCQ7 OCL, no signal (VCC1) ⎯ 0.7 1.1 ICCQ8 OCL, no signal (VCC2) ⎯ 0.7 1.5 ICCQ9 C-Cup, no signal (VCC1) ⎯ 0.4 0.6 ICCQ10 C-Cup, no signal (VCC2) ⎯ 0.3 0.6 ICC1 OCL, 0.5 mW × 2 ch (VCC1) ⎯ 0.8 ⎯ ICC2 OCL, 0.5 mW × 2 ch (VCC2) ⎯ 10.0 ⎯ ICC3 C-Cup, 0.5 mW × 2 ch (VCC1) ⎯ 0.5 ⎯ ICC4 C-Cup, 0.5 mW × 2 ch (VCC2) ⎯ 5.0 ⎯ Unit µA mA mA Voltage gain GV Vo = −22dBV 9.5 11.5 13.5 Channel balance CB Vo = −22dBV −1.5 0 1.5 Output power Po THD = 10% 5 8 ⎯ Total harmonic distortion THD Po = 1 mW ⎯ 0.1 1.0 % Output noise voltage Vno Rg = 600 Ω, Filter: IHF-A, SW3: b ⎯ −100 −96 dBV Crosstalk CT Vo = −22 dBV −25 −35 ⎯ dB mW Ripple rejection ratio 1 RR1 Inflow to VCC1, SW3: b fr = 100 Hz, Vr = −20 dBV −65 −85 ⎯ Ripple rejection ratio 2 RR2 Inflow to VCC2, SW3: b fr = 100 Hz, Vr = −20 dBV −85 −100 ⎯ Muting attenuation ATT Vo = −12dBV −100 −115 ⎯ −55 −50 −45 dBV VCC1 = 1.8 V, VCC2 = 0.9 V 5 ⎯ ⎯ µA Beep sound output voltage VBEEP (OUT) VBEEP (IN) = 2 Vp-p dB PW SW ON current I16 PW SW OFF voltage V16 VCC1 = 1.8 V, VCC2 = 0.9 V 0 ⎯ 0.3 V Mute SW ON current I17 VCC1 = 1.8 V, VCC2 = 0.9 V 5 ⎯ ⎯ µA Mute SW OFF voltage V17 VCC1 = 1.8 V, VCC2 = 0.9 V 0 ⎯ 0.3 V 8 2006-04-19 TA2152FNG Test Circuit 24 23 22 21 OUT ADJ BIAS IN RF IN C-AMP SW 20 GND 19 18 17 16 BIAS OUT BEEP IN MUTE SW PW SW 15 MUTE SW EQA 8 OUTA 9 BEEP OUTA 10 600 Ω ∼ 1 µF 22 µF 0.47 µF VCC1 10 µF 4.7 µF VCC1 Rg = 600 Ω BIAS OUT 14 VCC1 13 INB VCC2 11 INA 12 BEEP OUTB 3 OUTB 4 EQB 5 RL OUTC 6 PW GND 7 RL 1 µF NC 2 ∼ 600 Ω NC 1 Rg=600 Ω 22 µF TA2152FNG BIAS OUT 9 2006-04-19 TA2152FNG Characteristic Curves (unless otherwise specified, VCC1 = 2.4 V, VCC2 = 1.2 V, Rg = 600 Ω, RL = 16 Ω, f = 1 kHz, Ta = 25°C) ICCQ – VCC2 ICCQ – VCC1 1.5 1.5 1 OCL: VCC1 current OCL: VCC2 current 0.5 C-Cup: VCC1 current C-Cup: VCC2 current 0 1.5 V application (mA) ICCQ VCC1 = 2.4 V Quiescent supply current Quiescent supply current ICCQ (mA) 1.5 V application VCC2 = 1.2 V OCL: VCC2 current 1 OCL: VCC1 current 0.5 C-Cup: VCC1 current C-Cup: VCC2 current 0 0 1 1.5 2 Supply voltage of power drive stage 2.5 VCC2 0 1 (V) 2 (V) 1 C-Cup 0.5 3 V application VCC1 = VCC2 ICCQ (VCC1 + VCC2) 1 2 3 Supply voltage 4 Pin 23, 24: Short 1.5 V application 1 Pin 23, 24: Open 3 V application 0.5 0 5 VCC (V) 0 1 2 ICC – Po 4 VCC2 5 (V) ICC – Po 100 OCL mode C-Cup mode f = 1 kHz f = 1 kHz VCC2 Supply current ICC 10 1 VCC1 0.1 1 Dual input (mA) Dual input (mA) ICC Supply current 3 Supply voltage of power drive stage 100 0.1 0.01 5 1.5 VO(DC) OCL Output DC voltage Quiescent supply current ICCQ 1.5 0 4 VCC1 (V) VO (DC) – VCC2 (mA) ICCQ – VCC 0 3 Supply voltage 10 10 VCC2 1 VCC1 0.1 0.01 100 Output power Po (mW) 0.1 1 10 100 Output power Po (mW) 10 2006-04-19 TA2152FNG Po – VCC2 Po – VCC 100 30 3 V application VCC1 = VCC2 20 (mW) 20 Output power 5 1.5 V application VCC1 = 2.4 V 3 30 Po (mW) Po Output power 10 f = 1 kHz 0 1 1.5 2 Supply voltage of power drive stage RL = 16 Ω 10 5 3 RL = 16 Ω 2 f = 1 kHz 50 2 0 2.5 VCC2 1 2 (V) Supply voltage THD – Vo 3 V application VCC1 = 2.4 V VCC1 = VCC2 = 2.4 V RL = 16 Ω (%) (%) THD Total harmonic distortion THD Total harmonic distortion 1.5 V application RL = 16 Ω 10 1 f = 10 kHz f = 100 Hz 0.1 f = 1 kHz 0.01 −60 −50 −40 −30 Output voltage −20 Vo −10 1 f = 10 kHz f = 100 Hz 0.1 f = 1 kHz 0.01 −60 0 −50 (dBV) −40 (dBV) Vno OCL C-Cup −110 1.5 V application VCC1 = 2.4 V Rg = 600 Ω −120 −20 Vo 1.5 Supply voltage of power drive stage 0 (dBV) −90 OCL −100 C-Cup −110 3 V application VCC1 = VCC2 Rg = 600 Ω −120 Filter: IHF-A Filter: IHF-A 1 −10 Vno – VCC −90 −100 −30 Output voltage Output noise voltage (dBV) VCC (V) 10 Vno – VCC2 Vno 5 100 VCC2 = 1.2 V 0 4 THD – Vo 100 Output noise voltage 3 2 0 2.5 VCC2 (V) 1 2 Supply voltage 11 3 4 5 VCC (V) 2006-04-19 TA2152FNG CT – VCC2 CT – VCC 1.5 V application VCC1 = VCC2 f = 1 kHz CT (dB) 0 −20 OCL Cross talk CT (dB) Cross talk 3 V application VCC1 = 2.4 V f = 1 kHz 0 −40 −20 OCL −40 C-Cup C-Cup −60 −60 0 1 1.5 2 Supply voltage of power drive stage 2.5 VCC2 0 1 (V) 2 3 Supply voltage RR – VCC2 4 5 4 5 VCC (V) RR – VCC (dB) fr = 100 Hz Vr = −20 dBV RR RR1: Inflow to VCC1 RR2: Inflow to VCC2 −60 Ripple rejection ratio Ripple rejection ratio RR (dB) 1.5 V application −40 RR2 (C-Cup) −80 RR1 (OCL) RR1 (C-Cup) −100 1 1.5 3 V application fr = 100 Hz Vr = −20 dBV VCC1 = VCC2 −60 C-Cup −80 OCL −100 RR2 (OCL) 0 −40 2 Supply voltage of power drive stage 0 2.5 VCC2 (V) 1 2 Supply voltage 3 VCC (V) VBEEP (OUT) – VBEEP (IN) (dBV) −20 Beep output voltage f = 400 Hz (rectangle wave) −10 R = 16 Ω L VBEEP (OUT) 0 −30 −40 −50 −60 −70 −80 −90 −100 0.1 0.3 0.5 Beep input voltage 1 3 VBEEP (IN) 5 10 (Vp-p) 12 2006-04-19 TA2152FNG C-Cup: VCC1 current 0.4 C-Cup: VCC2 current 0.2 GV 10 Po 0.4 5 0.2 VCC1 = 2.4 V VCC2 = 1.2 V 0 −20 0 20 40 Ambient temperature 60 Ta THD 0 80 −20 (°C) 0 CT (dB) VBEEP (OUT) Cross talk Output noise voltage Vno (dBV) Beep output voltage VBEEP (OUT) (dBV) 0 −60 −80 Vno (OCL) 80 0 (°C) −20 OCL −40 C-Cup Vno (C-Cup) −120 −20 0 20 40 Ta 60 −80 80 −20 (°C) 0 VCC1 = 2.4 V ATT (dB) RR fr = 100 Hz Vr = −20 dBV Muting attenuation RR2: Inflow to VCC2 RR2 (C-Cup) −80 Ta 60 80 (°C) ATT – Ta RR1: Inflow to VCC1 −60 40 −60 VCC1 = 2.4 V VCC2 = 1.2 V VCC2 = 1.2 V −40 20 Ambient temperature RR – Ta −20 (dB) Ta 60 VCC1 = 2.4 V VCC2 = 1.2 V −60 Ambient temperature Ripple rejection ratio 40 CT – Ta VCC1 = 2.4 V VCC2 = 1.2 V −100 20 Ambient temperature Vno, VBEEP (OUT) − Ta −40 0.6 THD OCL: VCC1 current 0.6 0.8 15 OCL: VCC2 current Total harmonic distortion VCC1 = 2.4 V VCC2 = 1.2 V 0.8 (%) GV, Po, THD – Ta Voltage gain GV (dB) Output power Po (mW) Quiescent supply current ICCQ (mA) ICCQ − Ta RR1 (OCL) RR1 (C-Cup) −100 −80 −100 OCL −120 C-Cup −140 RR2 (OCL) −20 0 20 Ambient temperature 40 Ta 60 −20 80 (°C) 0 20 Ambient temperature 13 40 Ta 60 80 (°C) 2006-04-19 TA2152FNG Application Circuit 1 (1.5 V Output Coupling Type) 24 OUT ADJ 23 BIAS IN 22 OFF OFF C-AMP BIAS BEEP MUTE PW GND SW SW OUT IN SW 21 20 19 18 17 16 RF IN C-Amp SW Beep 22 µF ON ON 10 µF 2.2 µF 4.7 µF 3 V application: Open VCC1 0.47 µF (Boosted voltage) VCC1 MUTE VCC1 INB TC 15 14 13 PW/Mute SW BIAS NC 3 4 BEEP OUTB OUTB 5 EQB 6 PW B OUTC 7 0.22 µF PW GND 8 9 EQA 0.22 µF RL 10 11 12 INA OUTA BEEP VCC2 OUTA 22 µF 2 NC 220 µF 1 PW C 220 µF PW A RL (+B) Application Circuit 2 (1.5 V OCL Type) 24 OUT ADJ 23 BIAS IN 22 RF IN C-Amp SW Beep 22 µF ON OFF OFF C-AMP BIAS BEEP MUTE PW GND SW SW OUT IN SW 21 20 19 18 17 16 0.47 µF (Boosted voltage) VCC1 ON 10 µF 3 V application: Open 4.7 µF VCC1 MUTE INB VCC1 TC 15 14 13 PW/Mute SW BIAS 1 NC 2 NC 3 BEEP OUTB 4 PW C OUTB 5 EQB 6 PW B OUTC RL 7 PW GND 8 EQA 9 10 11 12 OUTA BEEP VCC2 INA OUTA 22 µF PW A RL (+B) 14 2006-04-19 TA2152FNG Package Dimensions Weight: 0.14 g (typ.) 15 2006-04-19 TA2152FNG RESTRICTIONS ON PRODUCT USE 060116EBA • The information contained herein is subject to change without notice. 021023_D • 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. 021023_A • 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. 021023_B • The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_Q • The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. 021023_C • The products described in this document are subject to the foreign exchange and foreign trade laws. 021023_E About solderability, following conditions were confirmed • Solderability (1) Use of Sn-37Pb solder Bath · solder bath temperature = 230°C · dipping time = 5 seconds · the number of times = once · use of R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath · solder bath temperature = 245°C · dipping time = 5 seconds · the number of times = once · use of R-type flux 16 2006-04-19