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BD5468GUL Dataheets PDF



Part Number BD5468GUL
Manufacturers Rohm
Logo Rohm
Description Analog Input Monaural Class-D Speaker Amplifier
Datasheet BD5468GUL DatasheetBD5468GUL Datasheet (PDF)

Small-sized Class-D Speaker Amplifiers Analog Input Monaural Class-D Speaker Amplifier BD5468GUL No.10101EAT08 ●Description BD5468GUL is a monaural Class-D speaker amplifier that contained ALC function for mobile phone, portable type electronic devices etc. LC filter of speaker output is not needed, can form monaural speaker amplifier. with 3 external parts. ALC, short for Automatic Level Control, is a function that automatically adjusts up to the level of suppression of distortion (clip) of o.

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Small-sized Class-D Speaker Amplifiers Analog Input Monaural Class-D Speaker Amplifier BD5468GUL No.10101EAT08 ●Description BD5468GUL is a monaural Class-D speaker amplifier that contained ALC function for mobile phone, portable type electronic devices etc. LC filter of speaker output is not needed, can form monaural speaker amplifier. with 3 external parts. ALC, short for Automatic Level Control, is a function that automatically adjusts up to the level of suppression of distortion (clip) of output wave form during excessive input. The time until the limit release operation of output level is called the release time (or recovery time). This IC adopts high-speed release time (4ms/1dB Typ.) and suits the application which repeats big volume in the short time such as the camera shutter sound. Through Class-D operation, efficiency is high low power consumption that is why it’s suitable for battery drive application. The current consumption during shutdown when lowered to 0.01μA(Typ.), from the shutdown to the operation time is early and at the same time pop sound is few that is why its also suitable in repeating active and shutdown. ●Feature 1) Contains Digital ALC (Automatic Level Control) Function 2) External Parts: 3points 3) Ultra slim type package: 9pin WL-CSP(1.7×1.7×0.55mmMax.) 4) BD5460/61GUL (No ALC Function, Gain Fixed Goods) Pin Compatible Specs BD5465/66/67GUL (ALC Function, Gain Fixed Goods) Pin Compatible Specs 5) Maximum Gain: 13dB (Typ.) [during ALC operation, 13~-2dB@1dB Step] 6) ALC high speed release (recovery) time: 4ms/1dB(Typ.) 7) Limit output power : 0.7W (Typ.) [VDD=4.2V, RL=8Ω, THD+N≦1%] : 0.5W (Typ.) [VDD=3.6V, RL=8Ω, THD+N≦1%] 8) Audio Analog Input (corresponds to single-end input / differential input) 9) Output LC filter free 10) Pop noise suppression circuit 11) Shutdown Function (use as mute at the same time) [low shutdown current = 0.01μA (Typ.)] 12) Contains protection circuit: output short, thermal shutdown, under voltage lockout (UVLO) ●Applications Mobile phone, Portable audio device, PND, DSC, Note-PC etc. ●Absolute Maximum Rating (Ta=+25℃) Parameter Symbol Ratings Power Supply Voltage Power Dissipation VDDmax PVDDmax Pd 7.0 690※ Storage Temperature Range Tstg -55 ~ +150 SDNB Pin Input Range VSDNB -0.3~VDD+0.3 IN+, IN- Pin Input Range VIN -0.3~VDD+0.3 ※ In case Ta=+25℃ or more, 5.52 mW decrease per 1℃ When mounting Rohm Typical Board 50.0mm×58.0mm (Material :Glass Epoxy) Unit V mW ℃ V V ●Operation Range Parameter Symbol Temperature Topr Power Supply Voltage VDD PVDD Common Mode Input Voltage Range VIC ◎ This product is not designed for protection against radioactive rays. Range -40 ~ +85 +2.5 ~ +5.5 +0.5 ~ VDD-0.8 Unit ℃ V V www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/19 2010.09 - Rev.A BD5468GUL Technical Note ●Electrical Characteristic (Ta=+25℃, VDD=+3.6V, Unless specified otherwise) Parameter <All Device> Circuit current (no signal) Symbol Min. Limits Typ. Max. ICC ― 3 6 Circuit current (shutdown) <Audio Feature> Limit output power Total harmonic distortion ISDN ― 0.01 2 PO THD+N 0.035 ×VDD2 ― 0.044 ×VDD2 0.2 0.055 ×VDD2 1 Maximum Gain ALC Limit level ALC Release level Switching frequency GMAX VLIM VREL fOSC 12 1.5 ×VDD 1.19 ×VDD 150 13 1.68 ×VDD 1.34 ×VDD 250 14 1.89 ×VDD 1.5 ×VDD 350 Unit Conditions mA IC Active, No Load VSDNB =VDD μA IC Shutdown VSDNB =GND W BTL, f=1kHz, RL=8Ω THD+N≦1% , *1 % BTL, fin=1kHz, RL=8Ω PO =0.3W, *1 dB BTL, *1 Vpp BTL, *1 Vpp BTL, *1 kHz Start-up time TON 0.73 1.02 1.71 msec Audio input resistance <Control Terminal> SDNB terminal Threshold voltage Ri 36 H VSDNBH 1.4 L VSDNBL 0 55 74 kΩ Gain=13dB ― VDD V IC Active ― 0.4 V IC Shutdown SDNB terminal Inflow Current H ISDBNH 12 24 36 μA VSDNB =3.6V L ISDNBL -5 ― 5 μA VSDNB =0V *1 Filter bandwidth for measurement :400~30kHz, LC filter for AC measurement :L=22μH / C=1μF, BTL :Voltage between A3,C3 ●Shutdown control Control terminal SDNB H L Conditions IC operation (active) IC stop (shutdown) ●ALC Parameter Attack Time (Typ.) ~1ms/1dB @ fin=100Hz ~0.5ms/1dB @ fin=1kHz ~0.05ms/1dB @ fin=10kHz ALC Parameter Release Time(Typ.) 4ms/1dB @ fin=100~10kHz Gain Switch Step (Typ.) ±1dB The gain switch timing during ALC operation occurs at zero cross point of audio output voltage. For that, attack time, release time will change at input frequency “fin”. ALC Parameter is fixed. ALC operation doesn’t correspond to noise of impulse. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 2/19 2010.09 - Rev.A BD5468GUL Technical Note ●Measurement Circuit Diagram


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