AD1992ACPZ Analog Devices Inc, AD1992ACPZ Datasheet
AD1992ACPZ
Specifications of AD1992ACPZ
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AD1992ACPZ Summary of contents
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FEATURES Integrated stereo modulator and power stage <0.002% THD + N 102 dB dynamic range (A-weighted) 2 × output power (4 Ω, <0.01% THD + N) R < 0.3 Ω (per transistor) DS-ON PSRR > On-off-mute ...
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AD1992 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Typical Performance Characteristics ...
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SPECIFICATIONS Test conditions, unless otherwise specified. Table 1. Parameter SUPPLY VOLTAGES AMBIENT TEMPERATURE LOAD IMPEDANCE CLOCK FREQUENCY PGA GAIN MEASUREMENT BANDWIDTH Table 2. Parameter R DS-ON Per High-Side Transistor Per Low-Side Transistor MAXIMUM CURRENT ...
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AD1992 Table 5. Power Supplies Parameter ANALOG SUPPLY DIGITAL SUPPLY POWER TRANSISTOR SUPPLY RESET/POWER-DOWN CURRENT QUIESCENT CURRENT OPERATING CURRENT ...
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ABSOLUTE MAXIMUM RATINGS Table 8. Parameter AVDD, DVDD to AGND, DGND 1 PVDDx to PGNDx AGND to DGND to PGNDx AVDD, to DVDD Operating Temperature Range Storage Temperature Range Maximum Junction Temperature Thermal Resistance θ JA θ (at the Exposed ...
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AD1992 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS CONNECT Table 9. Pin Function Descriptions Pin No. Mnemonic In/Out PGND1 OUTL PVDD1 11, 12, 13 OUTL− O 14, ...
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Pin No. Mnemonic In/Out 52, 54, 59 AINR I 55 REF_FILT O 56 AGND 57 AVDD 58 MOD_FILT O 60 AINL O 62 NFL− NFL+ I Description No Connection—Should Be Left Floating. Analog Input for ...
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AD1992 TYPICAL PERFORMANCE CHARACTERISTICS 0 –20 –40 –60 –80 –100 –120 –140 –160 FREQUENCY (kHz) Figure Output Power into 4 Ω Load, PVDD = –20 –40 –60 ...
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FREQUENCY (Hz) Figure 10. IMD for 19 kHz/20 kHz Twin-Tone Stimulus with 500 mW Power in Each Tone 40 PGA GAIN = 18dB 35 30 PGA GAIN = 12dB ...
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AD1992 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 20 50 100 200 500 1k FREQUENCY (Hz) Figure 16. Power Supply Rejection Ratio (PSRR) vs. Frequency 250 200 150 100 50 ...
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THD + N 0.01 THD 0.001 0.1 1 OUTPUT POWER (W) Figure 22. THD and THD + N vs. Output Power, 1 kHz Sine, 4 Ω Load, PVDD = 12 V 100 10 1 0.1 THD ...
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AD1992 100 10 1 0.1 THD + N 0.01 THD 0.001 0.1 1 OUTPUT POWER (W) Figure 28. THD and THD + N vs. Output Power, 1 kHz Sine, 4 Ω Load, PVDD = 18 V 100 10 1 0.1 ...
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THEORY OF OPERATION OVERVIEW The AD1992 is a 2-channel, high performance, switching, audio power amplifier. Each of the two Σ-Δ modulators converts a single-ended analog input into a 2-level pulse stream that controls the differential, full H-bridge, power output stage. ...
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AD1992 Note that the amplifier is capable of dc-coupled operation if the circuit includes some means to account for this bias voltage Figure 34. AC-Coupled Input Signal Setting the Modulator Gain The AD1992 modulator uses a combination of ...
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The power supply for the output stage of the AD1992, PV should be in the range and should be capable of supplying enough current to drive the load. Connect the power supply across the PVDD ...
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AD1992 Using an External Clock Source If a clock signal of the appropriate frequency already exists in the application circuit, connect it directly to CLKI and leave CLKO floating. The logic levels of the square wave should be compatible with ...
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APPLICATION CIRCUITS + 4.7µF DIGITAL INPUTS THERMAL SHUTDOWN THERMAL WARNING OVERCURRENT 0.1µF 47µF 1000µ 0.1µF 47µF 10µF + AINL OUTL+ NFL+ 10µF + AINR NFL– REF_FILT 0.1µF OUTL– AD1992 ...
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... MAX 0.85 0.80 SEATING PLANE ORDERING GUIDE Model Temperature Range 1 AD1992ACPZ −40°C to +85°C 1 AD1992ACPZRL −40°C to +85°C 1 AD1992ACPZRL7 −40°C to +85°C EVAL-AD1992EB Pb-free part. 9.00 BSC SQ 0.60 MAX 49 48 8.75 TOP BSC SQ VIEW 0.45 0.40 ...
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NOTES Rev Page AD1992 ...
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AD1992 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05776-0-4/06(0) Rev Page ...