AA4002

Data Sheet STEREO 2W AUDIO POWER AMPLIFIER General Description The AA4002 is a monolithic stereo audio power amplifier including DC volume control, a selectable gain/bass boost, and stereo bridged audio power amplifiers, with the capability of producing 2W into 4Ω with THD+N less than 1%. The AA4002 is specially designed for Notebook PC, LCD monitor and portable media player. The AA4002 features low power consumption in shutdown mode, power amplifier and headphone mute for maximum system flexibility and performance. It also provides thermal shutdown protection. The AA4002 is available in TSSOP-28 with ExposedDAP package. AA4002 Features · · · · · · · · DC Volume Control Interface, 0dB to -78dB, 31 Steps System Beep Detect Very Low Power Consumption in Shutdown Mode, ISD=0.7µA Stereo Power Output for Speakers/Headphones with BTL Mode/SE Mode Selectable Internal/External Gain Bass Boost Pop Noise Suppression Circuit Thermal Shutdown Protection Applications · · · · · Notebook PC LCD monitor Portable DVD Player Portable Media Player Digital Photo Frame TSSOP-28 with Exposed-DAP Figure 1. Package Type of AA4002 Sep. 2006 Rev. 1. 1 1 BCD Semiconductor Manufacturing Limited Data Sheet STEREO 2W AUDIO POWER AMPLIFIER Pin Configuration G Package (TSSOP-28 with Exposed-DAP) AA4002 GND SHUTDOWN GAIN SELECT MODE MUTE VDD DC VOL GND RIGHT DOCK RIGHT IN BEEP IN LEFT IN LEFT DOCK GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 RIGHT OUT+ VDD RIGHT OUTRIGHT GAIN 2 RIGHT GAIN 1 GND BYPASS HP SENSE GND LEFT GAIN 1 LEFT GAIN 2 LEFT OUTVDD LEFT OUT+ Figure 2. Pin Configuration of AA4002 Sep. 2006 Rev. 1. 1 2 BCD Semiconductor Manufacturing Limited Data Sheet STEREO 2W AUDIO POWER AMPLIFIER Pin Description Pin Number 1, 8, 14, 20, 23 2 3 4 5 6, 16, 27 7 9 10 11 12 13 15 17 18 19 21 22 24 25 26 28 Pin Name GND SHUTDOWN GAIN SELECT MODE MUTE VDD DC VOL RIGHT DOCK RIGHT IN BEEP IN LEFT IN LEFT DOCK LEFT OUT+ LEFT OUTLEFT GAIN 2 LEFT GAIN 1 HP SENSE BYPASS RIGHT GAIN 1 RIGHT GAIN 2 RIGHT OUTRIGHT OUT+ Ground for circuitry. Shutdown mode control signal input, place entire IC in shutdown mode when held high, IDD=0.7µA. Gain select input pin, logic high will switch the amplifier to external gain mode, and logic low will switch to internal unity gain. Mode select input pin, fixed gain when logic L and gain adjustable mode when logic H. Mute control input pin, active H. Supply voltage input pin. Volume control function input pin. Right docking output pin. Right channel audio input pin. Beep signal input pin. Left channel audio input pin. Left docking output pin. Left channel positive output pin. Left channel negative output pin. Connect pin 2 of the external gain setting resistor for left channel. Connect pin 1 of the external gain setting resistor for left channel. Headphone sense control pin. Bypass pin. Connect pin 1 of the external gain setting resistor for right channel. Connect pin 2 of the external gain setting resistor for right channel. Right channel negative output pin. Right channel positive output pin. Function AA4002 Sep. 2006 Rev. 1. 1 3 BCD Semiconductor Manufacturing Limited Data Sheet STEREO 2W AUDIO POWER AMPLIFIER Functional Block Diagram AA4002 GAIN SELECT 3 LEFT DOCK 13 LEFT GAIN 1 19 LEFT GAIN 2 18 Mute Mode HP Sense 5 4 Mode Control 10kΩ _ 17 21 10kΩ LEFT OUT- DC VOL 7 + 20kΩ 20kΩ LEFT IN 12 _ _ + 15 BEEP IN 11 Beep Detect + Bias Volume Control 31 Steps LEFT OUT+ Bias + 10 RIGHT IN 2 _ + _ 28 RIGHT OUT+ SHUTDOWN VDD 6, 16, 27 20kΩ Power Management 10kΩ + _ 20kΩ 26 RIGHT OUT- GND 1, 8, 14, 20, 23 Bypass 22 Click and Pop Suppression Circuitry 10kΩ 9 24 25 RIGHT DOCK RIGHT GAIN 1 RIGHT GAIN 2 Figure 3. Functional Block Diagram of AA4002 Sep. 2006 Rev. 1. 1 4 BCD Semiconductor Manufacturing Limited Data Sheet STEREO 2W AUDIO POWER AMPLIFIER Truth Table for Logic Inputs (Note 1) Gain Sel 0 0 0 0 1 1 1 1 X X Mode 0 0 1 1 0 0 1 1 X X Headphone Sense 0 1 0 1 0 1 0 1 X X Mute 0 0 0 0 0 0 0 0 1 X Shutdown 0 0 0 0 0 0 0 0 0 1 Output Stage Set To Internal Gain Internal Gain Internal Gain Internal Gain External Gain External Gain External Gain External Gain Muted Shutdown DC Volume Fixed Fixed Adjustable Adjustable Fixed Fixed Adjustable Adjustable X X Output Stage Configuration BTL SE BTL SE BTL SE BTL SE Muted X AA4002 Note 1: If system beep is detected on the BEEP IN pin, the system beep will be passed through the bridged amplifier regardless of the logic of the MUTE and HP SENSE pins. Ordering Information AA4002 Circuit Type Package E1: Lead Free TR: Tape and Reel Blank: Tube G: TSSOP-28 with Exposed-DAP Package Temperature Range Part Number Marking ID Packing Type TSSOP-28 with Exposed-DAP AA4002G-E1 -40 to 85 ℃ AA4002GTR-E1 AA4002G-E1 AA4002G-E1 Tube Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Sep. 2006 Rev. 1. 1 5 BCD Semiconductor Manufacturing Limited Data Sheet STEREO 2W AUDIO POWER AMPLIFIER Absolute Maximum Ratings (Note 2) Parameter Supply Voltage Input Voltage Power Dissipation ESD (Machine Model) Operating Junction Temperature Storage Temperature Symbol VDD VIN PD ESD TJ TSTG Value 6.0 -0.3 to VDD + 0.3 Internally limited 200 (Note 3) 150 -65 to 150 V oC oC oC oC/W AA4002 Unit V V Lead Temperature (Soldering 10s) Package Thermal Resistance TL RθJA (Note 4) 260 45 Note 2: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operation is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Note 3: This device is manufactured on a CMOS process. It is therefore generically susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this device. Note 4: The Chip is soldered to 200mm2 copper of 1oz. with 12x0.5mm vias. Recommended Operating Conditions Parameter Supply Voltage Operating Temperature Symbol VDD TA Min 2.7 -40 Max 5.5 85 Unit V oC Sep. 2006 Rev. 1. 1 6 BCD Semiconductor Manufacturing Limited Data Sheet STEREO 2W AUDIO POWER AMPLIFIER Electrical Characteristics (VDD=5V, TA=25oC, unless otherwise specified.) Parameter Standby and Logical Section Supply Voltage Quiescent Power Supply Current Shutdown Current Headphone Sense High Input Voltage Headphone Sense Low Input Voltage (Mute, Shutdown, Mode, Select) High Input Voltage (Mute, Shutdown, Mode, Select) Low Input Voltage Volume Attenuators Section Attenuator Range CRANGE VVOL=5V (DC), No load VVOL=0V (DC), BTL and SE Mode VMUTE=5V, BTL Mode VMUTE=5V, SE Mode THD=1%, f=1kHz, RL=32Ω THD=10%, f=1kHz, RL=32Ω -75 -78 -78 ± 0.75 dB dB dB dB Gain Gain VDD IDD ISD VIH VIL VIH VIL 3 1 VIN=0V, IOUT=0A VSHUTDOWN=VDD 4 0.8 2.7 11 0.7 5.5 30 2.0 V mA µA V V V V Symbol Conditions Min Typ Max Unit AA4002 Mute Attenuation Single-ended (SE) Mode Section AM 85 95 0.065 58 102 65 mW % dB dB dB Output Power Total Harmonic Distortion + Noise Power Supply Rejection Ratio Signal to Noise Ratio Channel Separation BTL Mode Section Output Offset Voltage POUT THD+N VOUT=1VRMS, f=1kHz, RL=10KΩ, AVD=1 PSRR SNR CB=1.0µF, f=120kHz, RL=32Ω, VRIPPLE=200mVRMS POUT=75mW, RL=32Ω, A-Wtd Filter f=1kHz, CB=1.0µF VOS VIN=0V, No load THD+N=1%, f=1kHz, RL=4Ω, LPF=22kHz ±5 2 ± 50 mV W Output Power POUT THD+N=1%, f=1kHz, RL=8Ω, THD+N=10%, f=1kHz, RL=8Ω, 1.0 1.1 1.5 0.3 74 % dB Total Harmonic Distortion + Noise Power Supply Rejection Ratio THD+N POUT=1.0W, RL=4Ω, AVD=2 20Hz