BD5461GUL Rohm, BD5461GUL Datasheet
BD5461GUL
Related parts for BD5461GUL
BD5461GUL Summary of contents
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... BD5461GUL ●Description BD5461GUL is a low voltage drive class-D monaural speaker amplifier that was developed for cellular phones, mobile audio products and the others.LC-filter of speaker output is unnecessary, and the number of external components is three suitable for the application of battery drive because of high efficiency and low power consumption. ...
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... BD5461GUL ●Electric Characteristics (Unless otherwise specified, Ta=25℃, VDD=3.6V, f=1kHz, RL=8Ω, AC item=LC Filter ; L=22µH, C=1µF ) Parameter Circuit current (No signal) Circuit current (Standby) Output power 1 Output power 2 Voltage gain Power Supply Rejection Ratio Output offset voltage Switching Frequency Start-up time High-level Standby input Voltage ...
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... BD5461GUL ●Package Outlines TOP VIEW 5461 LOT No. ●Block Diagram VDD B1 B2 STBY C2 Bias OSC IN+ A1 PWM IN PGND GND www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. WL-CSP ： VCSP50L1 ●Pin Assignment Chart PVDD OUT Bridge OUT+ C3 3/16 Technical Note www ...
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... BD5461GUL ●Application Circuit Example H：Active L：Shutdown Audio Input+ Differential Audio Input Input- H：Active L：Shutdown Audio 0.1μ Input+ Differential Audio Input 0.1μ Input- H：Active L：Shutdown Audio Input www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 10μ VDD B1 B2 PVDD STBY C2 Bias OSC ...
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... BD5461GUL ●Evaluation board Circuit Diagram H：Active L：Shutdown Audio Input+ Differential Audio Input Input- Please connect to www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. VDD VDD B1 B2 PVDD U1 S1 STBY C2 Bias OSC 300k IN+ 0.1μ Rin=75k A1 C2 PWM IN- 0.1μ C1 Rin=75k C1 GND A2 B3 PGND GND line ...
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... Parts List Qty. Item 2 C1, C2 Capacitor, 0.1μ Capacitor, 10μ Slide Switch IC, BD5461GUL Mono Class-D audio amplifier Printed-circuit board, 1 PCB1 BD5460GUL EVM ●Description of External components ①Input coupling capacitor (C1,C2) It makes a Input coupling capacitor 0.1µF. Input impedance is 75kΩ (Typ.). ...
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... BD5461GUL ●Evaluation board PCB layer www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. TOP Layer silk pattern TOP Layer Bottom Layer 7/16 Technical Note www.DataSheet4U.com 2010.06 - Rev.A ...
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... BD5461GUL ●The way of evaluating Audio characteristic Evaluation Circuit Diagram VDD H：Active STBY L：Shutdown C2 Audio IN+ 0.1μ Input Differential Audio Input IN- 0.1μ Input When measuring Audio characteristics, insert LC filter during the output terminal of IC and the speaker load and measure it. ...
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... BD5461GUL ●About the thermal design by the IC Characteristics have a great deal to do with the temperature at which it is used, and exceeding absolute maximum ratings may degrade and destroy elements. Careful consideration must be given to the heat of the IC from the two standpoints of immediate damage and long-term reliability of operation. Pay attention to points such as the following. ...
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... BD5461GUL ●Typical Characteristics Table of graphs Items Efficiency Supply current (Icc) Shutdown current (Istby) Output power (Po) Total harmonic distortion plus noise (THD+N) Supply voltage rejection ratio (PSRR) Common-mode rejection ratio (CMRR) Gain www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Parameter vs Output power ...
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... BD5461GUL ●Reference Data Efficiency - Output power f=1kHz RL=8Ω+33uH LC-filter(22uH+1uF) 100 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Po [W] Fig.4 Efficiency vs Output power f=1kHz RL=4Ω+33uH LC-filter(22uH+1uF 0.2 0.4 0.6 0.8 Fig.6 Icc - VDD No load, No signal 3 2.5 2 1 Output power vs RL THD+N=10% f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz 2 ...
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... BD5461GUL Output power vs VDD f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz 3.0 RL=8Ω：THD+N=1% 2.5 RL=8Ω：THD+N=10% RL=4Ω：THD+N=1% 2.0 RL=4Ω：THD+N=10% 1.5 1.0 0.5 0.0 2.5 3 3.5 VDD [V] Fig.12 THD+N vs Output power RL=8Ω f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz 10 VDD=2.5V VDD=3.6V VDD=5.0V 1 0.1 0.01 0.1 Po [W] Fig.14 THD+N vs Frequency VDD=3.6V RL=8Ω LC-filter(22uH+1uF) 30kHz-LPF 10 Po=25mW Po=125mW 1 Po=400mW 0.1 0.01 10 100 1k freq [Hz] Fig.16 THD+N vs Frequency RL=4Ω ...
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... BD5461GUL PSRR RL=4Ω Vripple=0.1Vpp Inputs ac-Grounded LC-filter(22uH+1uF) 30kHz-LPF 0 -10 VDD=2.5V -20 VDD=3.6V VDD=5.0V -30 -40 -50 -60 10 100 1k f [Hz] Fig.20 PSRR RL=4Ω Vripple=0.1Vpp Inputs Floating LC-filter(22uH+1uF) 30kHz-LPF 0 VDD=2.5V -10 VDD=3.6V -20 VDD=5.0V -30 -40 -50 -60 -70 10 100 1k f [Hz] Fig.22 CMRR RL=8Ω Vin=1Vpp LC-filter(22uH+1uF) 30kHz-LPF -30 -35 ...
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... BD5461GUL Gain_vs_Frequency RL=4Ω Vin=0.5Vpp LC-filter(22uH+1uF) 30kHz-LPF VDD=2.5V -5 VDD=3.6V VDD=5.0V -10 -15 10 100 1k freq [Hz] Fig.28 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Vin=0.5Vpp LC-filter(22uH+1uF) 30kHz-LPF -10 -15 10k 100k 10 14/16 Technical Note www.DataSheet4U.com Gain vs Frequency RL=8Ω VDD=2.5V VDD=3.6V VDD=5 ...
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... BD5461GUL ●Notes for use (1) Numbers and data in entries are representative design values and are not guaranteed values of the items. (2) Although we are confident recommending the sample application circuit, carefully check their characteristics further when using them. When modifying externally attached component constants before use, determine them so that They have sufficient margins by taking into account variations in externally attached components and the Rohm IC,not only for static characteristics but also including transient characteristics ...
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... BD5461GUL ●Ordering part number Part No. Part No. 5461 VCSP50L1 (BD5461GUL) 1PIN MARK 1.6±0.1 0. φ 0.25±0.05 0. φ 0.15)INDEX POST 0.3±0.1 P=0.5×2 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Package GUL：VCSP50L1 <Tape and Reel information> ...
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... ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing ...