AS1702 austriamicrosystems, AS1702 Datasheet
AS1702
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AS1702 Summary of contents
Page 1
... All devices contain click- and-pop suppression circuitry that reduces audible clicks and pops during power-up and shutdown. The AS1702 - AS1705 are pin compatible with the LM4895 and the MAX9718A/B/C/D. The devices are available in a 10-pin MSOP package and a 10-pin DFN package ...
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... AS1702 - AS1705 Data Sheet - Pinout Pin Assignments Figure 2. Pin Assignments (Top View) SHDN 1 IN- 2 AS1702/ AS1703/ SHDM 3 AS1704/ AS1705 IN+ 4 BIAS 5 10-pin MSOP Package Pin Descriptions Table 2. Pin Descriptions – MSOP-10 and TDFN-10 Package Pin Name 1 SHDN Shutdown Input. The polarity of this pin is dependent on the state of pin SHDM. ...
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... AS1702 - AS1705 Data Sheet - Absolute Maximum Ratings Stresses beyond those listed in Table 3 and functional operation of the device at these or any other conditions beyond those indicated in istics on page 4 is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ...
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... IN+ BIAS AMB SHDN = SHDM = GND A = 0dB (AS1703 3dB (AS1704) IN+ BIAS 6dB (AS1705 0dB (AS1703 3dB (AS1704) V Test A = 6dB (AS1705) V External Gain AS1702 AS1703, AS1704, AS1705 f = 1kHz 217Hz IN+ BIAS E = 200mVp- 1kHz = 1µF BIAS R = 8Ω 1kHz 4Ω 4Ω 1kHz 1.28W, L ...
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... AMB A = 0dB (AS1703 3dB (AS1704) IN+ BIAS 6dB (AS1705 0dB (AS1703 3dB (AS1704) V Test A = 6dB (AS1705) V External gain AS1702 AS1703, AS1704, AS1705 f = 1kHz 217Hz IN+ BIAS = 200mVp- 1kHz = 1µF BIAS R = 4Ω, THD 1kHz 8Ω, THD 1kHz L IN ...
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... AS1702 - AS1705 Data Sheet - Typical Operating Characteristics Figure 3. THD + Noise vs. Frequency 3V 4Ω 50mW OUT 0 250mW OUT 0.01 0.001 10 100 1000 Frequency (Hz) Figure 5. THD + Noise vs. Frequency; V =5V 4Ω 250mW OUT 0 OUT 0.01 0.001 10 100 1000 Frequency (Hz) Figure 7. THD + Noise vs. Frequency 5V 4Ω ...
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... AS1702 - AS1705 Data Sheet - Figure 9. THD + Noise vs. Output Power 3V 4Ω 1kHz IN 0 100Hz IN 0.01 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Output Power (W) Figure 11. THD + Noise vs. Output Power 3V 4Ω fIN = 1kHz 0 100Hz IN 0.01 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Output Power (W) Figure 13. THD + Noise vs. Output Power ...
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... AS1702 - AS1705 Data Sheet - Figure 15. THD + Noise vs. Output Power 5V 4Ω 1kHz IN 0 100Hz IN 0.01 0 0.4 0.8 1.2 1.6 Output Power (W) Figure 17. Output Power vs. Load Resistance 900 800 700 P @ THD = 10% OUT 600 500 400 300 P @ THD = 1% OUT 200 100 Load Resistance ( Ω ) Figure 19. Output Power vs. Supply Voltage ...
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... AS1702 - AS1705 Data Sheet - Figure 21. Power Dissipation vs. Output Power Ω 1kHz 700 600 500 400 300 200 100 0 0 100 200 300 400 500 Output Power (mW) Figure 23. Power Dissipation vs. Output Power Ω 1kHz 1.8 1.6 1.4 1.2 1.0 0.8 ...
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... AS1702 - AS1705 Data Sheet - Figure 27. Shutdown Current vs. Temperature -40 - Temperature (°C) Figure 29. Power Supply Rejection Ratio vs. Frequency 0 -10 -20 -30 -40 -50 - -90 -100 10 100 1000 10000 Frequency (Hz) www.austriamicrosystems.com Figure 28. Shutdown Current vs. Temperature 0.03 0.02 0.01 0.00 -0.01 -0.02 -0.03 -40 - Temperature (°C) 100000 Revision 1.47 ...
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... Data Sheet - Detailed Description The AS1702 - AS1705 are 1.8W high output-current audio amplifiers (configured as BTL amplifiers), and contain inte- grated low-power shutdown and click- and pop-suppression circuitry. Two inputs (SHDM and SHDN) allow shutdown mode to be configured as active-high or active-low Each device has either adjustable or fixed gains (0dB, 3dB, 6dB) Bias The devices operate from a single 2 ...
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... AS1702 - AS1705 Data Sheet - Application Information Figure 30. AS1702 Typical Application Diagram 2.7 to 5.5V Supply 10µ 10µF 10kΩ Inverting Differential Input Non-Inverting Differential Input 10kΩ 10µF * Optional C BIAS 0.1µF Figure 31. AS1703, AS1704, AS1705 Typical Application Diagram 2.7 to 5.5V Supply 10µ ...
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... AS1702 - AS1705 Data Sheet - BTL Amplifier All devices are designed to drive loads differentially in a bridge-tied load (BTL) configuration. Figure 32. Bridge Tied Load Configuration The BTL configuration doubles the output voltage (illustrated in similar conditions. Thus, the differential gain of the device (A effective gain is given by: ...
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... The fixed gain values are achieved using resistors R Adjustable Differential Gain (AS1702) Gain-Setting Resistors The AS1702 uses external feedback resistors, R where A is the desired voltage gain. For example ...
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... AS1702 - AS1705 Data Sheet - Input Filter The BTL inputs can be biased at voltages other than mid-supply. However, the integrated common-mode feedback cir- cuit adjusts for input bias, ensuring the outputs are still biased at mid-supply. Input capacitors are not required if the common-mode input voltage (V ...
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... AS1702 - AS1705 Data Sheet - Package Drawings and Markings Figure 34. 10-pin MSOP Package Symbol Typ A 1.10 A1 0.10 A2 0.86 D 3.00 D2 2.95 E 4.90 E1 3.00 E2 2.95 E3 0.51 E4 0.51 R 0.15 R1 0.15 t1 0.31 t2 0.41 www.austriamicrosystems.com ±Tol Symbol Typ Max b 0.23 ±0.05 b1 0.20 ±0.08 c 0.18 ±0.10 c1 0.15 θ1 ± ...
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... AS1702 - AS1705 Data Sheet - Notes: 1. All dimensions are in millimeters (angle in degrees), unless otherwise specified. 2. Datums B and determined at datum plane H. 3. Dimensions D and E1 are to be determined at datum plane H. 4. Dimensions D2 and E2 are for top package and D and E1 are for bottom package. 5. Cross section A determined at 0.12 to 0.25mm from the lead tip. ...
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... AS1702 - AS1705 Data Sheet - Figure 35. 10-pin DFN Package (3.0x3.0mm) D aaa C 2x INDEX AREA (D/2 xE/2) TOP VIEW 4 ccc 0. TYPE A Symbol Min Typ A 0.80 0.90 A1 0.00 0.02 A3 0.20 REF L1 L2 θ 0º K 0.20 K2 0.17 b 0.18 0.25 e 0.5 aaa 0.15 bbb 0.10 ccc ...
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... AS1702 - AS1705 Data Sheet - Ordering Information The devices are available as the standard products shown in Table 7. Ordering Information Model Description AS1702-T AS1703-T AS1704-T AS1705-T 1.8W Single-Channel Audio Power Amplifier AS1702V-T AS1703V-T AS1704V-T AS1705V-T www.austriamicrosystems.com Table 7. Gain Package Type Delivery Form Adjustable A = 0dB ...
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... AS1702 - AS1705 Data Sheet Copyrights Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans- lated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. ...