BL6213 1. 2 Watt Audio Power Amplifier Features Improved PSRR at 217 Hz 70dB Power output at 5.0V, 1% THD+N, 8Ω 1.2W (typ.) Power output at 3.0V, 1% THD+N, 8Ω 400 mW (typ.) Ultra low shutdown current 0.1 uA (typ.) 2.2V – 5.5V operation Improved circuitry eliminates pop-click noise during turn-on and turn-off transitions Excellent RFI (Radio Frequency Interference) immunity No output coupling capacitors, snubber networks or bootstrap capacitors required Unity-gain stable External gain configuration capability Available in space-saving package: NLGA9L General Description The BL6213 is a Class-AB audio power amplifier designed for mobile phones and other portable communication devices. It is capable of delivering 1.2 watts of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply. The BL6213 was designed specifically to provide high quality output power with a minimal amount of external components. It does not require output coupling capacitors or bootstrap capacitors. And with ultra low shutdown current, the BL6213 is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement. With special pop-click eliminating circuit, the BL6213 provides perfect pop-click characteristic during turn-on and turn-off transitions. The BL6213 is unity-gain stable and can be configured by external gain-setting resistors. Applications Wireless handsets Portable electronic devices PDAs, Handheld computers http://www.belling.com.cn -1- Total 8 Pages BL6213 Pin Diagrams NLGA9L Package (Top View ) 1 A INN NLGA9L Marking (Top View ) 2 . 3 Vout1 INP B GND GND VDD C BP Vout2 SHD AYW . A – BL6213 Y – Year Code W - Week Code Pin Description No. Pin Name I/O A1 INN I Negative Input A2 Vout1 O Negative BTL Output A3 INP I Positive Input B1/B2 GND I/O Ground B3 VDD I/O Power Supply (2.2 – 5.5 V) C1 BP I/O Analog ground for inner OPAs. It’s about a half of VDD. C2 Vout2 O Positive BTL Output I Shout-down Logical Control, ‘0’ is active. C3 http://www.belling.com.cn Description -2- Total 8 Pages BL6213 Typical Application Circuit Rf = 20 kΩ Audio In Ri = 20 kΩ INN Vout1 Ci = 0.39 µF 20 kΩ INP 20 kΩ RL Vout2 BIAS VDD VDD Temp_Prt Cs = 1 µF GND Pop-Click Cb = 1 µF BP SHD Shudown Control FIGURE 1. BL6213 Typical Application Circuit External Components Description Components Functional Description Ri Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor also forms a high pass filter with Ci at fc = 1/(2πRi*Ci). Ci Input coupling capacitor which blocks the DC voltage at the amplifiers input terminates. Also creates a high-pass filter with Ri at fc = 1/(2πRi*Ci). Rf Feedback resistance which sets the closed-loop gain in conjunction with Ri. Cs Supply bypass capacitor which provides power supply filtering. Cb Bypass pin capacitor which provides half-supply filtering. Refer to the section. Absolute Maximum Ratings Operating Ratings Supply Voltage -0.3V to 6V Input Voltage -0.3V to VDD+0.3V Junction Temperature -40℃ to +150℃ Storage Temperature -65℃ to +150℃ Temperature Range Supply Voltage http://www.belling.com.cn -3- -40℃≦TA≦85℃ 2.2V≦VDD≦5.5V Total 8 Pages BL6213 performance limits. NOTE: Absolute Maximum Ratings indicate limits beond which damage to the device may occur. Operating Rating indicate conditions for which the device is functional, but do not guarantee specific Electrical Characteristics The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25℃. VDD = 5V Symbol IDD ISD Parameter Quiescent Power Supply Current VSDIL Shutdown Voltage Input Low PO mA VIN = 0V, No Load 3.3 7 mA 0.1 2 uA No 1.3 Harmonic Po=0.5Wrms, THD+N<=1%, Output Power f=1KHz, 8Ω Load Power Supply Rejection Ratio VDDRIPPLE=0.2VP-P, f=217Hz Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz TWU V 6 0.8 V 50 mV 0.13 % 0.9 1.2 W 55 68 dB 55 65 dB 150 ms f=1KHz, Input terminated with 10Ω, PSRR Units 8 -50 Distortion+Noise Max. 3.6 Output Offset Voltage Total Typ. 8Ω Load Load Shutdown Voltage Input High THD+N Min. VIN = 0V, VIN=0V, VSHD=GND, Shutdown Current VSDIH VOS Spec Conditions Wake-up time VDD = 3V Symbol IDD ISD Parameter Quiescent Power Supply Current Shutdown Current VSDIH Shutdown Voltage Input High VSDIL Shutdown Voltage Input Low http://www.belling.com.cn Spec Conditions Min. Typ. Max. Units VIN = 0V, 8Ω Load 3.0 7 mA VIN = 0V, No Load 2.6 6 mA 0.1 2 uA VIN=0V, VSHD=GND, No Load 1.1 V 0.6 -4- V Total 8 Pages BL6213 VOS THD+N PO Output Offset Voltage Total -50 Harmonic Distortion+Noise Po=0.25Wrms, THD+N<=1%, Output Power PSRR Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz TWU 400 mW 55 70 dB 55 65 dB 132 ms 8Ω Load Power Supply Rejection Ratio mV % f=1KHz, VDDRIPPLE=0.2VP-P, f=217Hz 50 0.10 f=1KHz, Input terminated with 10Ω, 6 Wake-up time VDD = 2.6V Symbol IDD Parameter Quiescent Power Shutdown Current VOS Output Offset Voltage THD+N PO Supply Current ISD Total Spec Conditions Min. 2.7 mA VIN = 0V, No Load 2.5 mA 0.1 uA No -50 Harmonic Po=0.15Wrms, THD+N<=1%, Power Supply Rejection Ratio VDDRIPPLE=0.2VP-P, f=1KHz TWU Wake-up time http://www.belling.com.cn -5- mV 300 mW 55 71 dB 55 65 dB 126 ms 8Ω Load Input terminated with 10Ω, 50 % f=1KHz, VDDRIPPLE=0.2VP-P, f=217Hz 4 0.1 f=1KHz, Input terminated with 10Ω, PSRR Units 8Ω Load Load Output Power Max. VIN = 0V, VIN=0V, VSHD=GND, Distortion+Noise Typ. Total 8 Pages BL6213 Typical Performance Characteristics http://www.belling.com.cn -6- Total 8 Pages BL6213 http://www.belling.com.cn -7- Total 8 Pages BL6213 Package Dimensions NLGA9L PACKAGE http://www.belling.com.cn -8- Total 8 Pages