ssm2317 Analog Devices, Inc., ssm2317 Datasheet
ssm2317
Related parts for ssm2317
ssm2317 Summary of contents
Page 1
... The default gain of the SSM2317 is 18 dB, but users can reduce the gain by using a pair of external resistors (see the Gain section). The SSM2317 is specified over the commercial temperature range of − ...
Page 2
... SSM2317 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 Pin Configuration and Function Descriptions ............................. 6 Typical Performance Characteristics ............................................. 7 Typical Application Circuits .......................................................... 13 Theory of Operation ...................................................................... 14 Overview ...................................................................................... 14 REVISION HISTORY 6/08—Rev Rev. A Changes to Figure 1 .......................................................................... 1 Changes to Table 2 ...
Page 3
... 5 3 5 3 5.0 V 0.02 = 3.6 V 0.02 DD 1.0 57 280 2.0 2 3.6 3.2 2.7 = 5 3 2 1.2 0 >100 SSM2317 Max Unit − 1 kHz mV 5 kΩ kΩ μs kΩ ...
Page 4
... SSM2317 Parameter NOISE PERFORMANCE Output Voltage Noise Signal-to-Noise Ratio 1 Although the SSM2317 has good audio quality above 3 W, continuous output power beyond 3 W must be avoided due to device packaging limitations. Symbol Conditions 3 kHz, inputs are ac grounded ...
Page 5
... V Package Type V DD 9-Ball, 1.5 mm × 1.5 mm WLCSP −65°C to +150°C −40°C to +85°C ESD CAUTION −65°C to +165°C 300° Rev Page SSM2317 PCB θ θ Unit JA JB 1S0P 162 39 °C/W 2S0P 76 21 °C/W ...
Page 6
... OUT− 3C OUT+ BALL A1 CORNER SSM2317 TOP VIEW (BALL SIDE DOWN) Not to Scale Figure 2. Pin Configuration Description Inverting Input. Noninverting Input. Ground. Shutdown Input. Active low digital input. Automatic Level Control Enable Input. Active high digital input. Power Supply. ...
Page 7
... GAIN = 18dB R = 4Ω + 33µ 0.1 0.01 0.5W 10 100 1k 10k FREQUENCY (Hz Ω μH, Gain = 100 GAIN = 18dB R = 3Ω + 33µ 0.1 1.5W 0.01 0.75W 10 100 1k 10k FREQUENCY (Hz Ω μH, Gain = SSM2317 100k 2W 1W 100k 100k ...
Page 8
... SSM2317 100 V = 3.6V DD GAIN = 18dB R = 8Ω + 33µ 0.1 0.5W 0.125W 0.01 0.25W 0.001 10 100 1k FREQUENCY (Hz) Figure 9. THD + N vs. Frequency 3 100 V = 3.6V DD GAIN = 18dB R = 4Ω + 33µ 0.1 0.25W 0.01 0.5W 0.001 10 100 1k FREQUENCY (Hz) Figure 10. THD + N vs. Frequency 3 100 V = 3.6V DD ...
Page 9
... Figure 19. Efficiency vs. Output Power into 8 Ω μH 100 4.5 5.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 Figure 20. Efficiency vs. Output Power into 4 Ω μH Rev Page SSM2317 = 3Ω + 33µ NOT EXCEED 3W CONTINUOUS OUTPUT POWER 10% 1% 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE ( Ω μH, Gain = 2. 8Ω + 33µH ...
Page 10
... SSM2317 100 3. 2. 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 OUTPUT POWER (W) Figure 21. Efficiency vs. Output Power into 3 Ω μH 0. 8Ω + 33µH L 0.10 0. 3.6V DD 0. 0.2 0.4 0.6 0.8 1.0 OUTPUT POWER (W) Figure 22. Power Dissipation vs. Output Power into 8 Ω μH 0. 4Ω + 33µH L 0.40 0.35 0. 3.6V DD 0.25 0. 2.5V DD 0.15 0.10 0. 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 OUTPUT POWER (W) Figure 23. Power Dissipation vs. Output Power into 4 Ω ...
Page 11
... Figure 30. Supply Current vs. Supply Voltage, ALC Contribution 100 100k 0 8Ω + 33µH L ALC = ON 1 0.1 0.01 0.001 0.01 100k Figure 32. Input/Output Characteristic, V Rev Page SSM2317 ALC = ON NO LOAD ALC = OFF NO LOAD 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE ( 100 1k 10k R (kΩ) TH Figure 31 90% ...
Page 12
... SSM2317 3. 8Ω + 33µH L ALC = ON 1 0.1 0.01 0.001 0.01 0.1 INPUT (V rms) Figure 33. Input/Output Characteristic, V 1V/DIV INPUT OUTPUT ALC = –0.2 0 0.2 0.4 0.6 0.8 1.0 TIME (ms) Figure 34. Attack Waveform, 1 kHz Sine Wave 1V/DIV INPUT V DD ATTACK TIME R = 8Ω + 33µH L ALC = OUTPUT –0.1 0 0.1 0.2 0.3 0.4 0.5 TIME (ms) Figure 35 ...
Page 13
... ALC_EN VTH R TH ALC ENABLE Figure 40. Single-Ended Input Configuration, User-Adjustable Gain Rev Page VBATT 2.5V TO 5.5V 0.1µF VDD OUT+ FET (Σ-Δ) DRIVER OUT– POP-AND-CLICK SUPPRESSION GND VBATT 2.5V TO 5.5V 0.1µF VDD OUT+ FET (Σ-Δ) DRIVER OUT– POP-AND-CLICK SUPPRESSION GND SSM2317 ...
Page 14
... SSM2317 amplifiers. The SSM2317 also offers protection circuits for overcurrent and temperature protection. GAIN The SSM2317 has a default gain that can be reduced by using a pair of external resistors with a value calculated as follows: External Gain Settings = 80 kΩ/(10 kΩ POP-AND-CLICK SUPPRESSION Voltage transients at the output of the audio amplifiers can occur when shutdown is activated or deactivated ...
Page 15
... If high-pass filtering is needed at the input, the input capacitor and the input resistor of the SSM2317 form a high-pass filter whose corner frequency is determined by the following equation 1/{2π ...
Page 16
... SSM2317 OUTPUT THRESHOLD The maximum output amplitude threshold (V limiting mode can be changed from 90 having an external resistor between the VTH pin and GND. TH Shorting the VTH pin to GND sets V TH the VTH pin unconnected sets shown by the following equation: ...
Page 17
... Figure 45. 9-Ball Wafer Level Chip Scale Package [WLCSP] (CB-9-2) Dimensions shown in millimeters Package Description 9-Ball Wafer Level Chip Scale Package [WLCSP] 9-Ball Wafer Level Chip Scale Package [WLCSP] Evaluation Board Evaluation Board Rev Page SSM2317 BOTTOM VIEW (BALL SIDE UP) ...
Page 18
... SSM2317 NOTES Rev Page ...
Page 19
... NOTES Rev Page SSM2317 ...
Page 20
... SSM2317 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07242-0-6/08(A) Rev Page ...