DIO2128XM10

Rev 1.2 DIO2128 3-Vrms Audio Driver with Adjustable Gain Features Descriptions The DIO2128 is an integrated solution for Set-top Voltage Output at 600Ω Load 2Vrms with 3.3V supply voltage box and high definition player, and designed to 3Vrms with 5.0V supply voltage optimize the audio driver circuit performance while reducing the BOM cost by eliminating the Ultra Low noise and THD SNR>112dB peripheral discrete components for noise Typical Vn100dB audio driver that designed to allow for the No Pop/Clicks Noise when Power ON/OFF removal of output AC-coupling capacitors. No Need for Output DC-Blocking Capacitors Featuring differential input mode, gain range of Optimized Frequency Response between ±1V/V to ±10V/V can be achieved via external gain resistor setting. The DIO2128 is able to offer 20Hz–20kHz Accepting Differential Input 3Vrms output at 600Ω load with 5V supply. Featuring external under voltage mute Meanwhile, the DIO2128 offers built-in shut-down HBM ESD protection: Output pin 8kV control Available in EP-MSOP-10 package performance. Under under-voltage condition, circuitry for optimal pop-free DIO2128 is able to detect it and mutes the output. Applications Block Diagram Set-Top Boxes High Definition DVD Players Car Entertainment System Medical Ordering Information Order Part Number DIO2128XM10 www.dioo.com Top Marking DIO2128 TA Green/RoHS -40 to +85°C Package EP-MSOP-10 Tape & Reel, 3000 © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 DIO2128 EP-MSOP-10 Figure 1 Top View Pin Descriptions PIN I/O Description Name NO. -INR 1 I Right-channel negative input OUTR 2 O Right-channel output EN 3 I Enable input, active-high PVSS 4 P Supply voltage CN 5 I/O Charge-pump flying capacitor negative terminal CP 6 I/O Charge-pump flying capacitor positive terminal PVDD 7 P Positive supply UVP 8 I Under voltage protection input OUTL 9 O Left-channel output -INL 10 I Left-channel negative input GND Exposed Pad P Power ground Note: For simplicity, all VDD below stands for PVDD. www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Pin Assignment DIO2128 Stresses beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maxim rating conditions for extended periods may affect device reliability. Parameter Rating Unit -0.3 to 7.5 V GND-0.3 to VDD+0.3 V 600 Ω -0.3 to VDD+0.3 V Storage Temperature Range -65 to 150 °C Junction Temperature -65 to 150 °C 190 °C/W 8 kV Supply Voltage Input Voltage Minimum load impedance EN to GND MSOP-10,ӨJA HBM ESD, JESD22-A114 Output Pins Recommend Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended Operating conditions are specified to ensure optimal performance to the datasheet specifications. DIOO does not Recommend exceeding them or designing to Absolute Maximum Ratings. Symbol VDD Parameter Supply Voltage Min. Typ. Max. Unit 3 5 5.5 V EN High level Input Voltage(VDD=5V) 1.2 EN High level Input Voltage(VDD=3.3V) 1.1 VIH V EN Low level Input Voltage(VDD=5V) 0.4 V EN Low level Input Voltage(VDD=3.3V) 0.3 V 85 °C VIL TA www.dioo.com Operating Temperature Range -40 © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Absolute Maximum Ratings DIO2128 Typical value: TA = 25°C, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit -3.3 0 3.3 mV VOS Output Offset Voltage VDD=3-5V, Input grounded, unity gain OVP VDD Over Voltage Protection VDD>5.5V, then IC shut down PSRR Power supply rejection ratio VOH VOL 5.7 V 90 dB VDD=5V,RL=2.5kΩ 4.9 V VDD=3.3V,RL=2.5kΩ 3.2 V High level output voltage VDD=5V,RL=2.5kΩ -4.80 V VDD=3.3V,RL=2.5kΩ -3.10 V Low level output voltage IIH EN High level input current VDD=5V,VI=VDD 1 µA IIL EN Low level input current VDD=5V,VI=0V 1 µA IDD Supply current VDD=3.3V, VI= VDD, No load 11 VDD=5V, VI= VDD, No load 12 mA 1 Shut down mode, VDD=3-5V mA Operating Characteristics Typical value: VDD=3.3V, RL=2.5kΩ, CPUMP=1µF,CPVSS=1µF, CIN=10µF, RIN=10kΩ, Rfb=20kΩ,TA=25°C, unless otherwise specified. Symbol VO THD+N XTALK IO SNR Parameter Output Voltage THD=1%, VDD=3.3V, f=1kHz Total harmonic distortion + noise VO=2VRMS, f=1kHz, RL=600Ω Channel crosstalk Max. 2.05 Unit VRMS VO=2VRMS, f=1kHz 95 dB Maximum output current VDD=3.3V 60 mA Signal noise ratio VO=2VRMS, BW=22kHz, A-weighted 112 dB 12 V/µs 4.5 µVRMS 7 MHz 140 dB VN Noise output voltage GBW Unity gain bandwidth AVO Open loop voltage gain VUVP External under-voltage detection IHys External under-voltage detection hysteresis current fCP Charge pump frequency www.dioo.com Typ. % Slew rate @mute Min. 0.001 SR Attenuation Conditions Input-to-output attenuation in shutdown BW=20Hz to 22kHz,VDD=3.3V 1.08 EN=0V 1.11 1.14 V 5 µA 310 kHz 90 dB © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Electrical Characteristics DIO2128 Typical value: VDD=5V, RL=2.5kΩ, CPUMP=1µF,CPVSS=1µF, CIN=10µF, RIN=10kΩ, Rfb=20kΩ,TA=25°C, unless otherwise specified. Symbol VO THD+N XTALK IO SNR Parameter Output Voltage THD=1%, VDD=5V, f=1kHz, RL=100kΩ 3.1 Typ. Max. Unit VRMS 0.001 % VO=3VRMS, f=1kHz 95 dB Maximum output current VDD=5V 60 mA Signal noise ratio VO=3VRMS, BW=22kHz, A-weighted 112 dB 12 V/µs 5.1 µVRMS 7 MHz 140 dB Channel crosstalk VN Noise output voltage GBW Unity gain bandwidth AVO Open loop voltage gain VUVP External under-voltage detection IHys External under-voltage detection hysteresis current fCP Charge pump frequency www.dioo.com 3.01 VO=3VRMS, f=1kHz, RL=600Ω Slew rate @mute Min. THD=1%, VDD=5V, f=1kHz Total harmonic distortion + noise SR Attenuation Conditions Input-to-output attenuation in shutdown BW=20Hz to 22kHz,VDD=5V 1.08 EN=0V 1.11 1.14 V 5 µA 310 kHz 90 dB © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Operating Characteristics DIO2128 At TA = +25℃, CPUMP=0.33µF,CPVSS=1µF,unless otherwise noted. IDD vs. Temperature IDD vs. VDD 14 14 13 13 12 12 IDD (mA) IDD (mA) VDD=5V, EN=H, Gain=2 11 11 10 10 9 9 3.5 4.0 4.5 5.0 8 -40 5.5 -20 0 20 40 60 C 8 3.0 80 100 120 Temperature (° ) VDD (V) VOS vs. Temperature VOS vs. VDD 3 3 2 2 1 1 VOS (mV) VOS (mV) VDD=5V, Gain=100 0 0 -1 -1 Right Left Right Left -2 3.5 4.0 4.5 5.0 -3 -40 5.5 -20 0 20 THD+N vs. VOUT THD+N vs. VOUT THD+N VS.Vout THD+N VS.Vout 80 100 1 2 120 10 10 VDD=3.3V,G=2 1 THD+N (%) THD+N (%) 60 Temperature (° ) VDD (V) 1 40 C -3 3.0 -2 0.1 0.01 1E-3 L_RL=600Ω R_RL=600Ω L_RL=10kΩ R_RL=10kΩ 0.1 1 Vout (Vrms) www.dioo.com 0.1 0.01 1E-3 1E-4 2 VDD=5V,G=2 L_RL=600Ω R_RL=600Ω L_RL=10kΩ R_RL=10kΩ 1E-4 0.1 3 Vout (Vrms) © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Typical Performance Characteristics DIO2128 THD+N vs. Frequency THD+N VS.Frequency THD+N VS.Frequency 1 1 L_RL=600Ω R_RL=600Ω L_RL=10kΩ R_RL=10kΩ 0.1 THD+N (%) THD+N (%) 0.1 0.01 VDD=3.3V,G=2 VIN=1Vrms 0.01 1E-3 1E-3 100 1k L_RL=600Ω R_RL=600Ω L_RL=10kΩ R_RL=10kΩ VDD=5V,G=2 VIN=1.5Vrms 10k 100 1k Frequency (Hz) 10k Frequency (Hz) GBW vs. Frequency PSRR vs. Frequency PSRR VS.Frequency GBW VS.Frequency -20 20 VDD=5V@200mVpp -30 -40 PSRR (dB) GBW (dB) 10 0 -50 -60 -70 -80 -10 -90 VDD=5V,G=10 VIN=50mVpp -20 10 100 -100 1k 10k 100k 1M 10 10M 100 1k 10k 100k 1M 10M Frequency (Hz) Frequency (Hz) OVP 5.60 5.64 5.68 5.72 5.76 5.80 5.84 5.88 Over Voltage Protection www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain THD+N vs. Frequency Rev 1.2 Application Circuit Notes: 1. In some applications, if the power supply noise needs to be filtered, the ferrite bead is recommended in a value of 600ohm@100MHz, instead of RC network. RC network normally will lower the power supply resulting in the degraded the audio performance. If the resistor is not chosen properly, which can trigger the internal UVP detection circuit and shut down the output. As depicted below. www.dioo.com 2. In order to protect the device against the power surge, transient voltage suppressor (TVS) devices are recommended at the output pins OUTL/OUTR. © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 DIO2128 Gain-SettingResistorsRanges and Input-Blocking Capacitors The gain-setting resistors, RIN and RFB, must be chosen so that noise, stability, and input capacitor size of the DIO2128 are kept within acceptable limits. Voltage gain is defined as RFB divided by RIN. Table 1 lists the recommended resistor value for different gain settings. Selecting values that are too low demands a large input ac-coupling capacitor CIN. Selecting values that are too high increases the noise of the amplifier. The gain-setting resistor must be placed close to the input pins to minimize capacitive loading on these input pins and to ensure maximum stability. Table 1 Input Capacitor with 2Hz cutoff and Resistor Values Recommended Input Res., Feedback Res., RIN Rfb 22 kΩ 22 kΩ -1 V/V 15 kΩ 30 kΩ -2 V/V 10 kΩ 100 kΩ -10 V/V fCIN = 1 or 2πRINCIN CIN = 1 2πRINfCIN Inverting Gain Equation 1 Cutoff decision Cutoff Figure 2 Inverting Gain Configurations Figure 3 Non-Inverting Gain Configuration Figure 4 Differential Gain Configuration www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Application Notes DIO2128 DC input-blocking capacitors are required to be added in series with the audio signal into the input pins of DIO2128. These capacitors block the dc portion of the audio source and allow DIO2128 inputs to be properly biased to provide maximum performance. These capacitors form a high-pass filter with the input resistor, RIN. The cutoff frequency is calculated using the equation below. For this calculation, the capacitance used is the input-blocking capacitor, and the resistance is the input resistor chosen from Table 1; then the frequency and/or capacitance can be determined when one of the two values is given. 2nd Order Filter Typical Application Several audio DACs used today require an external low-pass filter to remove out-of-band noise. This is possible with the DIO2128, as it can be used like a standard OPAMP. Several filter topologies can be implemented, both single-ended and differential. In Figure 3, a multi-feedback (MFB) with differential input and single-ended input is shown. An ac-coupling capacitor to remove dc content from the source is shown; it serves to block any dc content from the source and lowers the dc-gain to 1, helping reducing the output dc-offset to minimum. The resistor values should have a low value for obtaining low noise, but should also have a high enough value to get a small size ac-coupling capacitor. Figure 5 Second-Order Active Low-Pass Filter Charge Pump Flying Capacitor and PVSS Capacitor The charge pump flying capacitor serves to transfer charge during the generation of the negative supply voltage. The PVSS capacitor must be at least equal to the charge pump capacitor in order to allow maximum charge transfer. Low ESR X5R or X7R capacitors are recommended selection, a value of typical 0.33µF is recommended for CPUMP, and a value of typical 1µF is recommended for PVSS. Capacitor values can be smaller than the value recommended, but the maximum output voltage may be reduced and the device may not operate to specifications. www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain INPUT-BLOCKING CAPACITORS DIO2128 The DIO2128 requires adequate power supply decoupling to ensure that the noise and total harmonic distortion (THD) are low. A good low equivalent-series-resistance (ESR) X5R or X7R ceramic capacitor, typically a combine of paralleled 0.1µF and 10µF, placed as close as possible to the device VDD lead works best. Placing this decoupling capacitor close to the DIO2128 is important for the performance of the amplifier. For filtering lower-frequency noise signals, a 10µF or greater capacitor placed near the audio power amplifier would also help, but it is not required in most applications because of the high PSRR of this device. Pop-Free Power-Up Pop-free power up is ensured by keeping the EN (shut down pin) low during power-supply ramp up and ramp down. The EN pin should be kept low until the input ac-coupling capacitors are fully charged before asserting the EN pin high to achieve pop-less power up. Figure 6 illustrates the preferred sequence. Figure 6 Power-Up Sequences External Under-voltage Detection External under-voltage detection can be used to shut down the DIO2128 before an input device can generate a pop noise. Although the shut down voltage is 1.11V, customers need to consider the accuracy of system passive components such as resistors and associated temperature variation. Users often select a resistor divider to obtain the power-on and shut down threshold for the specific application. The typical thresholds can be calculated as follows： Case 1: VSUP_MO= 12V (Recommended) VSUP_MO= 12V VUVP=(1.11V-6µA*R13)*(R11+R12)/R12; Vhysteresis=5µA*R13*(R11+R12)/R12; R11 With the condition R13>>R11//R12. For example, if R11=11k, R12=1.4k and R13=47k, R13 UVP pin 11 Cy R12 Then VUVP=7.334V; Vhysteresis=2.081V Here, VUVP is the shut down threshold. In this case, the voltage at UVP pin 11 is greater than 1.311V under worst case of VSUP_MO ripples. www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Decoupling Capacitors DIO2128 The DIO2128 has the ability to drive a high capacitive load up to 220pF directly. Higher capacitive loads can be accepted by adding a series resistor of 47Ω or larger. For further assistance, please contact DIOO worldwide sales office to seek technical support. You can find DIOO sales office information at www.dioo.com. www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain Capacitive Load DIO2128 3-Vrms Audio Driver with Adjustable Gain Physical Dimensions: EP-MSOP-10 Symbol A A1 A2 A3 b b1 c c1 D D1 E E1 E2 e L L1 L2 R R1 Θ Θ1 www.dioo.com Min 0 0.75 0.25 0.18 0.17 0.15 0.14 2.90 0.75 4.70 2.90 0.75 0.40 0.40 0.07 0.07 0° 9° Typ 0.85 0.35 0.20 0.15 3.00 4.90 3.00 0.50 0.60 0.95REF 0.25BSC 12° Max 1.10 0.15 0.95 0.39 0.27 0.23 0.20 0.16 3.10 2.50 5.10 3.10 2.50 0.60 0.80 8° 15° © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 DIO2128 Dioo is a professional design and sales corporation for high-quality and performance analog semiconductors. The company focuses on industry markets, such as, cell phone, handheld products, laptop, and medical equipment and so on. Dioo’s product families include analog signal processing and amplifying, LED drivers and charger IC. Go to http://www.dioo.com for a complete list of Dioo product families. For additional product information, or full datasheet, please contact with our Sales Department or Representatives. www.dioo.com © 2016 DIOO MICROCIRCUITS CO., LTD DIO2128• Rev. 1.2 3-Vrms Audio Driver with Adjustable Gain CONTACT US This datasheet has been downloaded from: datasheet.eeworld.com.cn Free Download Daily Updated Database 100% Free Datasheet Search Site 100% Free IC Replacement Search Site Convenient Electronic Dictionary Fast Search System www.EEworld.com.cn All Datasheets Cannot Be Modified Without Permission Copyright © Each Manufacturing Company