SSM2380CBZ-REEL Analog Devices Inc, SSM2380CBZ-REEL Datasheet
SSM2380CBZ-REEL
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SSM2380CBZ-REEL Summary of contents
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FEATURES Filterless, stereo, Class-D amplifier with Σ-Δ modulation 2 W into 4 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with <1% total harmonic distortion plus noise (THD + N) 2 Highly configurable I C ...
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SSM2380 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications..................................................................................... Timing Characteristics.......................................................... 5 Absolute Maximum Ratings............................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. ...
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FUNCTIONAL BLOCK DIAGRAM SSM2380 22nF INR+ RIGHT IN+ INR– RIGHT IN– 22nF SCK 2 SDA I C MODE 22nF INL+ LEFT IN+ INL– LEFT IN– 22nF GAIN1 GAIN0 GAIN = 6dB, 12dB, 18dB, OR 24dB 10µF 0.1µF VDD Σ-∆ MODULATOR ...
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SSM2380 SPECIFICATIONS 25° Ω +33 μH, gain = 6 dB Table 1. Parameter Symbol DEVICE CHARACTERISTICS Output Power P Efficiency η THD + N Total Harmonic Distortion ...
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I C TIMING CHARACTERISTICS Table 2. Limit Parameter t MIN t 600 SCS t 600 SCH t 600 SCK t 100 600 HCS Timing Diagram ...
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SSM2380 ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings apply at 25°C, unless otherwise noted. Table 3. Parameter Rating Supply Voltage 6 V Input Voltage V DD Common-Mode Input Voltage V DD ESD Susceptibility 4 kV Storage Temperature Range −65°C to +150°C ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic A1 OUTL+ A2, A3 VDD A4 OUTR+ B1 OUTL− B2, B3 GND B4 OUTR− MODE C3 SCK/EDGE/GAIN0 C4 SDA/ALCTH/GAIN1 D1 INL+ D2 INL− D3 ...
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SSM2380 TYPICAL PERFORMANCE CHARACTERISTICS EDGE pin = GND, unless otherwise noted. 100 R = 8Ω + 33µH L GAIN = 6dB 0.1 0.01 0.001 0.0001 0.001 ...
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4Ω + 15µH L GAIN = 6dB 0.1 1W 0.01 0.5W 0.001 10 100 1k FREQUENCY (Hz) Figure 10. THD + N vs. Frequency ...
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SSM2380 100 8Ω + 33µH L GAIN = 6dB 10 1 0.25W 0.1 0.125W 0.01 0.0625W 0.001 10 100 1k FREQUENCY (Hz) Figure 16. THD + N vs. Frequency 2 ...
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R = 8Ω + 33µH 1.8 L GAIN = 6dB 1.6 1.4 1.2 THD + N = 10% 1.0 0.8 THD + 0.6 0.4 0.2 0 2.5 3.0 3.5 4.0 SUPPLY VOLTAGE (V) ...
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SSM2380 0.8 BOTH CHANNELS R = 8Ω + 33µH L 0.7 GAIN = 6dB 0 0 3. 2.5V DD 0.3 0.2 0 0.5 1.0 1.5 2.0 OUTPUT POWER ...
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OUTPUT SD INPUT –1 –2 – TIME (ms) Figure 33. Turn-On Response –1 – –160 ...
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SSM2380 THEORY OF OPERATION OVERVIEW The SSM2380 stereo, Class-D audio amplifier features a filterless modulation scheme that greatly reduces the external component count, conserving board space and, thus, reducing system cost. The SSM2380 does not require an output filter but, ...
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OPERATING MODES The SSM2380 has three unique operating modes, controlled by the MODE pin. When MODE (Ball C2) is connected to GND, 2 the SSM2380 operates control mode; Ball C3 and Ball C4 2 function as SCK ...
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SSM2380 GAIN SELECT MODE OPERATION When MODE is connected to VDD, the SSM2380 is in gain 2 select mode, disabling the I C interface. The ALC and emission limiting functions are also disabled. Ball C3 and Ball C4 function as ...
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Attack Time, Hold Time, and Release Time When the amplifier input signal exceeds a preset threshold, the ALC reduces amplifier gain rapidly until the output voltage settles to a target level. This target level is maintained for a certain period. ...
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SSM2380 MIXER MODE 2 When I C control mode is activated, the user can send left channel input to both left and right channel outputs or send right channel input to both outputs. This is achieved by selecting Register R2, ...
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APPLICATIONS INFORMATION LAYOUT As output power increases, care must be taken to lay out printed circuit board (PCB) traces and wires properly among the amplifier, load, and power supply. A good practice is to use short, wide PCB tracks to ...
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SSM2380 POWER SUPPLY DECOUPLING To ensure high efficiency, low total harmonic distortion (THD), and high PSRR, proper power supply decoupling is necessary. Noise transients on the power supply lines are short-duration voltage spikes. Although the actual switching frequency is typi- ...
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TYPICAL APPLICATION CIRCUITS C22 R14 0Ω L INPUT + 0.22µF C23 R15 0Ω L INPUT– 0.22µF C24 R16 0Ω R INPUT + 0.22µF C25 R17 0Ω R INPUT– 0.22µF STDN I2C[0..1] SCK SSM2380 22nF INR+ RIGHT IN+ INR– RIGHT IN– ...
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SSM2380 C22 L INPUT + 0.22µF C23 L INPUT– 0.22µF C24 R INPUT + 0.22µF C25 R INPUT – 0.22µF STDN SSM2380 22nF INR+ RIGHT IN+ INR– RIGHT IN– 22nF MODE = OPEN DISABLED 22nF INL+ LEFT ...
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C22 R14 0Ω INPUT + 0.22µF D2 C23 R15 0Ω L INPUT– 0.22µF C24 R16 0Ω INPUT + 0.22µF D3 C25 R17 0Ω R INPUT – 0.22µF C1 STDN Figure 47. SSM2380 Typical Schematic, Gain Select ...
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SSM2380 INTERFACE 2 The I C interface provides access to the user-selectable control registers and operates with a 2-wire interface. Each control register consists of 16 bits, MSB first. Bits[B15:B9] are the register map address, and Bits[B8:B0] ...
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REGISTER MAP Table 11. Register Map Reg Address Name Bit 7 R0 0x00 Left channel LTOR gain control R1 0x01 Right channel RTOL gain control R2 0x02 Mode control 0 R3 0x03 ALC Control 0x04 ALC Control ...
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SSM2380 REGISTER MAP DETAILS REGISTER R0: LEFT CHANNEL GAIN CONTROL, ADDRESS 0x00 Bit 7 Bit 6 Bit 5 LTOR LMUTE Table 12. Left Channel Gain Control Register Bit Descriptions Bits Bit Name Description 7 LTOR Left-to-right channel gain data load ...
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REGISTER R2: MODE CONTROL, ADDRESS 0x02 Bit 7 Bit 6 Bit EDGE[1:0] Table 14. Mode Control Register Bit Descriptions Bits Bit Name Description [5:4] EDGE[1:0] Edge rate control. Setting OCREC Overcurrent autorecovery ...
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SSM2380 REGISTER R4: ALC CONTROL 2, ADDRESS 0x04 Bit 7 Bit 6 Bit 5 ALC_EN COMP[1:0] Table 16. ALC Control 2 Register Bit Descriptions Bits Bit Name Description 7 ALC_EN ALC enable (gain setting loaded to ALC control ...
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REGISTER R5: SHUTDOWN, ADDRESS 0x05 Bit 7 Bit 6 Bit Table 18. Shutdown Register Bit Descriptions Bits Bit Name Description 1 STDNR Right channel shutdown control power up right channel power down ...
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... OUTLINE DIMENSIONS 2.000 1.960 SQ 1.920 BALL 1 IDENTIFIER TOP VIEW (BALL SIDE DOWN) ORDERING GUIDE 1 Model Temperature Range SSM2380CBZ-REEL −40°C to +85°C SSM2380CBZ-REEL7 −40°C to +85°C EVAL-SSM2380Z RoHS Compliant Part. 0.640 0.595 0.550 SEATING PLANE 0.340 0.320 0.300 0.05 MAX ...
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NOTES Rev Page SSM2380 ...
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SSM2380 NOTES refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). ©2010–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08752-0-2/11(A) Rev ...