APA2069
APA2120/2121
Stereo 2-W Audio Power Amplifier (with DC_Volume Control)
Features |
General Description |
∙Low operating current with 14mA
∙Improved depop circuitry to eliminate turn-on and turn off transients in outputs
∙High PSRR
∙32 steps volume adjustable by DC voltage with hysteresis
∙2W per channel output power into 4Ω load at 5V, BTL mode
∙Two output modes allowable with BTL and SE modes selected by SE/BTL pin
∙Low current consumption in shutdown mode (50μA)
∙Short Circuit Protection
∙Power off depop circuit integration
∙TSSOP-24 with or without thermal pad package
Applications
∙NoteBook PC
∙LCD Monitor or TV
APA2120/1 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.7W(2.0W) into 3Ω with less than 10% (1.0%) THD+N. The attenuator range of the volume control in APA2120/1 is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in APA2120/1, that reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, APA2120/1 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. Besides, the multiple input selection is used for portable audio system.
Ordering and Marking Information
APA2120/1 |
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Package Code |
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R : TSSOP-P * |
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Lead Free Code |
Temp. Range |
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I : - 40 to 85 °C |
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Handling Code |
Handling Code |
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Temp. Range |
TU : Tube |
TR : Tape & Reel |
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TY : Tray |
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Package Code |
Lead Free Code |
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L : Lead Free Device |
Blank : Original Device |
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APA2120/1 R : |
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APA2120/1 |
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XXXXX - Date Code |
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XXXXX |
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* TSSOP-P is a standard TSSOP package with a thermal pad exposure on the bottom of the package.
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ã ANPEC Electronics Corp. |
1 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
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APA2120/2121
Block Diagram
LLINEIN |
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LOUT+ |
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LHPIN |
MUX |
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Volume |
LOUT- |
RLINEIN |
Control |
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RHPIN |
MUX |
LBYPASS |
VOLUME |
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BYPASS |
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BYPASS |
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ROUT+ |
HP/LINE |
HP/LINE |
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SE/BTL |
SE/BTL |
ROUT- |
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RBYPASS |
SHUTDOWN |
Shutdown |
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ckt |
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PCBEEP |
PC-BEEP |
CLK |
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Clock Gen |
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ckt |
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For APA2121
Absolute Maximum Ratings
(Over operating free-air temperature range unless otherwise noted.)
Symbol |
Parameter |
Rating |
Unit |
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VDD |
Supply Voltage Range |
-0.3 to 6 |
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VIN |
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Input Voltage Range, SE/BTL, |
HP/LINE, |
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-0.3 to VDD+0.3 |
V |
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SHUTDOWN, PCBEN |
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TA |
Operating Ambient Temperature Range |
-40 to 85 |
°C |
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TJ |
Maximum Junction Temperature |
Intermal Limited*1 |
°C |
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TSTG |
Storage Temperature Range |
-65 to +150 |
°C |
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TS |
Soldering Temperature,10 seconds |
260 |
°C |
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VESD |
Electrostatic Discharge |
-3000 to 3000*2 |
V |
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-200 to 200*3 |
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PD |
Power Dissipation |
Intermal Limited |
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Note:
1.APA2120/1 integrated internal thermal shutdown protection when junction temperature ramp up to 150°C 2.Human body model: C=100pF, R=1500W, 3 positives pulse plus 3 negative pulses
3.Machine model: C=200pF, L=0.5mF, 3 positive pulses plus 3 negative pulses
Copyright ã ANPEC Electronics Corp. |
2 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
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APA2120/2121
Recommended Operating Conditions
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Min. |
Max. |
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Unit |
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Supply Voltage, VDD |
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4.5 |
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5.5 |
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V |
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High level threshold voltage, VIH |
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SHUTDOWN, |
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PCBEN |
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2 |
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V |
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SE/BTL , HP/LINE |
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4 |
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PCBEN |
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1.0 |
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Low level threshold voltage, VIL |
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SHUTDOWN, |
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V |
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SE/BTL , HP/LINE |
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3 |
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Common mode input voltage, VICM |
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VDD-1.0 |
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V |
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Thermal Characteristics |
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Symbol |
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Value |
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RTHJA |
Thermal Resistance from Junction to Ambient in Free Air |
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TSSOP-P* |
45 |
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°C/W |
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* 5 in2 printed circuit board with 2oz trace and copper pad through 9 25mil diameter vias. The thermal pad on the TSSOP_P package with solder on the printed circuit board.
Electrical Characteristics
VDD=5V, -20°C<TA<85°C (unless otherwise noted)
Symbol |
Parameter |
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Test Condition |
APA2120/1 |
Unit |
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Min. |
Typ. |
Max. |
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VDD |
Supply Voltage |
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4.5 |
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5.5 |
V |
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14 |
25 |
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IDD |
Supply Current |
SE/BTL=0V |
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mA |
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SE/BTL=5V |
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8.0 |
15 |
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ISD |
Supply Current in Shutdown |
SE/BTL=5V |
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50 |
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μA |
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Mode |
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SHUTDOWN=0V |
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IIH |
High input Current |
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900 |
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nA |
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IIL |
Low Input Current |
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900 |
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nA |
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VOS |
Output Differential Voltage |
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5 |
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mV |
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Copyright ã ANPEC Electronics Corp. |
3 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
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APA2120/2121
Electrical Characteristics (Cont.)
Operating Characteristics, BTL mode
VDD=5V,TA=25°C,RL=4Ω, Gain=2V/V (unless otherwise noted)
Symbol |
Parameter |
Test Condition |
APA2120/1 |
Unit |
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Min. |
Typ. |
Max. |
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THD=10%, RL=3Ω, Fin=1kHz |
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2.7 |
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THD=10%, RL=4Ω, Fin=1kHz |
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2.3 |
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PO |
Maximum Output Power |
THD=10%, RL=8Ω, Fin=1kHz |
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1.5 |
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W |
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THD=1%, RL=3Ω, Fin=1kHz |
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2.0 |
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THD=1%, RL=4Ω, Fin=1kHz |
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1.9 |
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THD=0.5%, RL=8Ω, Fin=1kHz |
1 |
1.1 |
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THD+N |
Total Harmonic Distortion Plus |
PO=1.5W, RL=4Ω, Fin=1kHz |
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0.05 |
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Noise |
PO=1W, RL=8Ω, Fin=1kHz |
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0.07 |
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PSRR |
Power Ripple Rejection Ratio |
VIN=0.1Vrms, RL=8Ω, CB=1μF, |
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60 |
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dB |
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Fin=120Hz |
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Xtalk |
Channel Separation |
CB=1μF, RL=8Ω, Fin=1kHz |
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90 |
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dB |
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S/N |
Signal to Noise Ratio |
PO=1.1W, RL=8Ω, A_wieght |
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95 |
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dB |
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Operating Characteristics, SE mode
VDD=5V,TA=25°C,RL=4Ω, Gain=1V/V (unless otherwise noted)
Symbol |
Parameter |
Test Condition |
APA2120/1 |
Unit |
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Min. |
Typ. |
Max. |
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THD=10%, RL=8Ω, Fin=1kHz |
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400 |
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PO |
Maximum Output Power |
THD=10%, RL=32Ω, Fin=1kHz |
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110 |
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mW |
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THD=1%, RL=8Ω, Fin=1kHz |
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320 |
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THD=1%, RL=32Ω, Fin=1kHz |
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90 |
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THD+N |
Total Harmonic Distortion Plus |
PO=250mW, RL=8Ω, Fin=1kHz |
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0.08 |
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Noise |
Ω |
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0.08 |
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PO=75mW, RL=32 , Fin=1kHz |
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PSRR |
Power Ripple Rejection Ratio |
VIN=0.1Vrms, RL=8Ω, CB=1μF, |
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Fin=120Hz |
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Xtalk |
Channel Separation |
CB=1μF, RL=32Ω, Fin=1kHz |
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100 |
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dB |
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S/N |
Signal to Noise Ratio |
PO=75mW, SE, RL=32Ω, A_wieght |
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100 |
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dB |
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Copyright ã ANPEC Electronics Corp. |
4 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
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APA2120/2121
Pin Description
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GND |
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GND |
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PCBEN |
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RLINEIN |
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VOLUME |
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SHUTDOWN |
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LOUT+ |
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ROUT+ |
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LLINEIN |
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RHPIN |
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LHPIN |
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6 |
APA2120 |
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VDD |
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PVDD |
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7 |
TOP View |
18 |
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PVDD |
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RBYPASS |
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CLK |
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LOUT- |
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ROUT- |
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LBYPASS |
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15 |
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SE/BTL |
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BYPASS |
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PC-BEEP |
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GND |
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12 |
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GND |
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Thermal
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1 |
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GND |
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GND |
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23 |
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RLINEIN |
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HP/LINE |
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VOLUME |
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3 |
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22 |
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SHUTDOWN |
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LOUT+ |
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4 |
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ROUT+ |
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LLINEIN |
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RHPIN |
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LHPIN |
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6 |
APA2121 |
19 |
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VDD |
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PVDD |
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7 |
TOP View |
18 |
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PVDD |
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RBYPASS |
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CLK |
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LOUT- |
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ROUT- |
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LBYPASS |
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10 |
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15 |
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SE/BTL |
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BYPASS |
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PC-BEEP |
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11 |
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14 |
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GND |
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12 |
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13 |
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GND |
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APA2120/1
Bottom View
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Multiple Input Selection |
PCBEEP Control Input |
APA2120 |
SE/BTL |
PCBEN |
APA2121 |
HP/LINE |
- |
Copyright ã ANPEC Electronics Corp. |
5 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
|
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APA2120/2121
Pin Function Description
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Pin |
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Config. |
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Description |
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Name |
No |
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GND |
1,12, |
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Ground connection, Connected to thermal pad. |
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13,24 |
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PCBEN |
2 |
I/P |
BEEP mode control input, active H, for APA2120 only |
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Multi-input selection input, headphone mode when held high, line-in |
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HP/LINE |
2 |
I/P |
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mode when held low for APA2121 only. |
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VOLUME |
3 |
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Input signal for internal volume gain setting. |
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LOUT+ |
4 |
O/P |
Left channel positive output in BTL mode and SE mode. |
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LLINEIN |
5 |
I/P |
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is held low. |
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Left channel line input terminal, selected when HP/LINE |
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is |
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LHPIN |
6 |
O/P |
Left channel headphone input terminal, selected when HP/LINE |
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held high. |
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PVDD |
7,18 |
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Supply voltage only for power amplifier. |
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RBYPASS |
8 |
I/P |
Right channel bypass voltage. |
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LOUT- |
9 |
O/P |
Left channel negative output in BTL mode and high impedance in |
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SE mode. |
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LBYPASS |
10 |
I/P |
Left channel bias voltage generator. |
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BYPASS |
11 |
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Bias voltage generator |
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PC_BEEP |
14 |
I/P |
PCBEP signal input |
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Output mode control input, high for SE output mode and low for |
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SE/BTL |
15 |
I/P |
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BTL mode. |
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ROUT- |
16 |
O/P |
Right channel negative output in BTL mode and high impedance in |
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SE mode. |
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CLK |
17 |
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Clock signal generator |
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VDD |
19 |
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Supply voltage for internal circuit excepting power amplifier. |
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is |
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RHPIN |
20 |
I/P |
Right channel headphone input terminal, selected when HP/LINE |
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held high. |
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ROUT+ |
21 |
O/P |
Right channel positive output in BTL mode and SE mode. |
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SHUTDOWN |
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22 |
I/P |
It will be into shutdown mode when pull low. |
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is held |
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RLINEIN |
23 |
I/P |
Right channel line input terminal, selected when HP/LINE |
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low. |
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Copyright ã ANPEC Electronics Corp. |
6 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
|
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APA2120/2121
Control Input Table
For APA2120
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SE/BTL |
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SHUTDOWN |
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PC-BEEP |
Operating mode |
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X |
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L |
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Disable |
Shutdown mode |
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L |
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H |
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Disable |
Line input, BTL out |
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H |
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H |
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Disable |
HP input, SE out |
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X |
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X |
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Enable |
PCBEEP input, BTL out |
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For APA2121 |
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SE/BTL |
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HP/LINE |
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SHUTDOWN |
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PC-BEEP |
Operating mode |
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X |
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X |
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L |
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Disable |
Shutdown mode |
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L |
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L |
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H |
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Disable |
Line input, BTL out |
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L |
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H |
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H |
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Disable |
HP input, BTL out |
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H |
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L |
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H |
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Disable |
Line input, SE out |
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H |
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H |
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H |
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Disable |
HP input, BTL out |
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X |
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X |
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X |
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Enable |
PCBEEP input, BTL out |
Copyright ã ANPEC Electronics Corp. |
7 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
|
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APA2120/2121 |
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Typical Application Circuit |
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APA2120 |
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VDD |
0Ω |
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0.1μF |
100μF |
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VDD |
GND |
PVDD |
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1μF |
LLINEIN |
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LOUT+ |
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L-LINE |
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LHPIN |
MUX |
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220μF |
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1μF |
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1kΩ |
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L-HP |
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4Ω |
Control |
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Volume |
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LOUT- |
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1μF |
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Pin |
Ring |
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RLINEIN |
Control |
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R-LINE |
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RHPIN |
MUX |
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LBYPASS |
SE/BTL |
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1μF |
VDD |
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2.2μF |
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R-HP |
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BYPASS |
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Sleeve |
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Tip |
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BYPASS |
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Headphone Jack |
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50kΩ |
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VOLUME |
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ROUT+ |
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220μF |
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1kΩ |
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VDD |
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100kΩ |
100kΩ SE/BTL |
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4Ω |
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SE/BTL |
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ROUT- |
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RBYPASS |
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Shutdown |
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SHUTDOWN |
Shutdown |
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Signal |
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ckt |
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0.47μF |
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BEEP |
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PCBEEP |
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CLK |
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Signal |
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PC-BEEP |
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Clock Gen |
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PCBEN |
PCBEN |
ckt |
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47nF |
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Signal |
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Copyright ã ANPEC Electronics Corp. |
8 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003
APA2120/2121 |
|
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Typical Application Circuit |
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APA2121 |
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VDD |
0Ω |
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0.1μF |
100μF |
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VDD |
GND |
PVDD |
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1μF |
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LOUT+ |
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L-LINE |
LLINEIN |
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LHPIN |
MUX |
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220μF |
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1μF |
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1kΩ |
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L-HP |
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4Ω |
Control |
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Volume |
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LOUT- |
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1μF |
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Pin |
Ring |
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Control |
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R-LINE |
RLINEIN |
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RHPIN |
MUX |
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LBYPASS |
SE/BTL |
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1μF |
VDD |
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2.2μF |
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Sleeve |
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R-HP |
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BYPASS |
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Tip |
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BYPASS |
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VOLUME |
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Headphone Jack |
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ROUT+ |
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50kΩ |
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220μF |
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HP/LINE |
HP/LINE |
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1kΩ |
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HP/LINE |
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Signal |
VDD |
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100kΩ |
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4Ω |
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100kΩ SE/BTL |
SE/BTL |
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ROUT- |
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RBYPASS |
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Shutdown |
SHUTDOWN |
Shutdown |
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Signal |
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ckt |
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BEEP |
PCBEEP |
PC-BEEP |
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CLK |
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Signal |
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ckt |
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Clock Gen |
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0.47μF |
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47nF |
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Copyright ã ANPEC Electronics Corp. |
9 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003
APA2120/2121
Volume Control Table_BTL Mode
Supply Voltage Vdd=5V
Gain(dB) |
High(V) |
Low(V) |
Hysteresis(mV) |
Recommended Voltage(V) |
20 |
0.12 |
0.00 |
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0 |
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18 |
0.23 |
0.17 |
52 |
0.20 |
16 |
0.34 |
0.28 |
51 |
0.31 |
14 |
0.46 |
0.39 |
50 |
0.43 |
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12 |
0.57 |
0.51 |
49 |
0.54 |
10 |
0.69 |
0.62 |
47 |
0.65 |
8 |
0.80 |
0.73 |
46 |
0.77 |
6 |
0.91 |
0.84 |
45 |
0.88 |
4 |
1.03 |
0.96 |
44 |
0.99 |
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2 |
1.14 |
1.07 |
43 |
1.10 |
0 |
1.25 |
1.18 |
41 |
1.22 |
-2 |
1.37 |
1.29 |
40 |
1.33 |
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-4 |
1.48 |
1.41 |
39 |
1.44 |
-6 |
1.59 |
1.52 |
38 |
1.56 |
-8 |
1.71 |
1.63 |
37 |
1.67 |
-10 |
1.82 |
1.74 |
35 |
1.78 |
-12 |
1.93 |
1.85 |
34 |
1.89 |
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-14 |
2.05 |
1.97 |
33 |
2.01 |
-16 |
2.16 |
2.08 |
32 |
2.12 |
-18 |
2.28 |
2.19 |
30 |
2.23 |
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-20 |
2.39 |
2.30 |
29 |
2.35 |
-22 |
2.50 |
2.42 |
28 |
2.46 |
-24 |
2.62 |
2.53 |
27 |
2.57 |
-26 |
2.73 |
2.64 |
26 |
2.69 |
-28 |
2.84 |
2.75 |
24 |
2.80 |
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-30 |
2.96 |
2.87 |
23 |
2.91 |
-32 |
3.07 |
2.98 |
22 |
3.02 |
-34 |
3.18 |
3.09 |
21 |
3.14 |
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-36 |
3.30 |
3.20 |
20 |
3.25 |
-38 |
3.41 |
3.32 |
18 |
3.36 |
-40 |
3.52 |
3.43 |
17 |
3.48 |
-80 |
5.00 |
3.54 |
16 |
5 |
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Copyright ã ANPEC Electronics Corp. |
10 |
www.anpec.com.tw |
Rev. A.1 - Mar., 2003 |
|
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