BD5467GUL

Small-sized Class-D Speaker Amplifiers Analog Input Monaural Class-D Speaker Amplifier BD5467GUL No.10101EAT07 ●Description BD5467GUL 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 release time (262ms/1dB Typ.) and suits the applications which play music. 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 BD5465/66/68GUL (ALC Function, Gain Fixed Goods) Pin Compatible Specs 5) Maximum Gain：13dB(Typ.) [during ALC operation, 13～-2dB@1dB Step] 6) ALC release(recovery) time：262ms/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 Power Supply Voltage Power Dissipation Storage Temperature Range SDNB Pin Input Range IN+, IN- Pin Input Range Symbol VDDmax PVDDmax Pd Tstg VSDNB VIN Ratings 7.0 690※ -55 ～ +150 -0.3～VDD+0.3 -0.3～VDD+0.3 Unit V mW ℃ V V ※ In case Ta=+25℃ or more, 5.52 mW decrease per 1℃ When mounting Rohm Typical Board 50.0mm×58.0mm (Material：Glass Epoxy) ●Operation Range Parameter Temperature Power Supply Voltage Common Mode Input Voltage Range Symbol Topr VDD PVDD VIC Range -40 ～ +85 +2.5 ～ +5.5 +0.5 ～ VDD-0.8 Unit ℃ V V ◎ This product is not designed for protection against radio active rays. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/19 2010.09 - Rev.A BD5467GUL ●Electrical Characteristic(Ta=+25℃, VDD=+3.6V, Unless specified otherwise) Parameter ＜All Device＞ Circuit current (no signal) Circuit current (shutdown) ＜Audio Feature＞ Limit output power Total harmonic distortion Maximum Gain ALC Limit level ALC Release level Switching frequency Start-up time Audio input resistance ＜Control Terminal＞ SDNB terminal Threshold voltage H L H L VSDNBH VSDNBL ISDBNH ISDNBL 1.4 0 12 -5 ― ― 24 ― VDD 0.4 36 5 V V μA μA IC Active IC Shutdown VSDNB =3.6V VSDNB =0V PO THD+N GMAX VLIM VREL fOSC TON Ri 0.035 ×VDD2 ― 12 1.5 ×VDD 1.19 ×VDD 150 0.73 36 0.044 ×VDD2 0.2 13 1.68 ×VDD 1.34 ×VDD 250 1.02 55 0.055 ×VDD2 1 14 1.89 ×VDD 1.5 ×VDD 350 1.71 74 W % dB Vpp Vpp kHz msec kΩ Gain=13dB ICC ISDN ― ― 3 0.01 6 2 mA μA Symbol Limits Min. Typ. Max. Unit Technical Note Conditions IC Active, No Load VSDNB =VDD IC Shutdown VSDNB =GND BTL, f=1kHz, RL=8Ω THD+N≦1% , *1 BTL, fin=1kHz, RL=8Ω PO =0.3W, *1 BTL, *1 BTL, *1 BTL, *1 SDNB terminal Inflow Current *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 ● ALC Parameter Conditions IC operation (active) IC stop (shutdown) ALC Parameter Attack Time (Typ.) Release Time(Typ.) 262ms/1dB @ fin=100～10kHz Gain Switch Step (Typ.) ±1dB ～1ms/1dB @ fin=100Hz ～0.5ms/1dB @ fin=1kHz ～0.05ms/1dB @ fin=10kHz 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 BD5467GUL ●Measurement Circuit Diagram ■In case LC filter is not used +Battery Technical Note C3 10uF VDD B1 B2 PVDD Shutdown Signal H : IC Active L : IC Shutdown SDNB C2 150 k (Typ.) Shutdown Control BIAS OSC ALC 0. 1uF IN + A1 C2 Ri Rf HBridge OUT + C3 PWM 0. 1uF IN C1 C1 OUT A3 Ri Rf BTL GND A2 B3 PGND LPF AP AUX 0025 - Measument Instrument Audio Precision (AP) ■In case LC filter is used +Battery C3 10uF VDD B1 B2 PVDD Shutdown Signal H: IC Active L : IC Shutdown SDNB C2 150k (Typ .) Shutdown Control BIAS OSC ALC 0. 1uF C2 IN + A1 Ri Rf HBridge 22uH C3 1 uF 1uF A3 22uH BTL GND A2 B3 PGND Audio Precision (AP) PWM 0. 1uF C1 IN C1 Ri Rf Audio characteristics can be measured to insert LC filter between output pin and speaker load, if you don’t have measurement equipment for switching amplifier, like AUX-0025, Audio Precision. Arrange the LC filter directly close to output pin. In case of L=22μH, C=1μF, cut off frequency becomes:  34kHz 2 LC 2 22 H  1F For Inductor L, please use huge current type. fc  1  1 (Reference)TDK: SLF12575T-220M4R0 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 3/19 2010.09 - Rev.A BD5467GUL ●External Dimension Diagram Top View Bottom View Technical Note 5467 LOT No . ( Unit : mm ) 9pin WL-CSP (VCSP50L1) [ 1.7×1.7×0.55mm Max, 0.5mm Pitch ] Side View ●Block Diagram VDD B1 B2 PVDD ●Pin Arrangement (Bottom View) SDNB C2 150k (Typ.) Shutdown Control BIAS C1 IN- C2 SDNB C3 OUT+ OSC ALC IN+ A1 PWM INC1 Ri Rf HBridge OUTA3 Ri Rf OUT+ C3 B1 Index Post VDD B2 PVDD B3 PGND A1 IN+ A2 GND A3 OUT- GND A2 B3 PGND ●Pin Explanation Pin No. A1 A2 A3 B1 B2 B3 C1 C2 C3 Pin Name IN+ GND OUTVDD PVDD PGND INSDNB OUT+ Explanation Audio differential input+ terminal GND terminal (signal) Class-D BTL output - terminal VDD terminal (signal) VDD terminal (power) GND terminal (power) Audio differential input - terminal Shutdown control terminal Class-D BTL output+ terminal www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 4/19 2010.09 - Rev.A BD5467GUL ●Application circuit example Technical Note SHORT the power supply pin VDD (B1), PVDD (B2) at board pattern, then use singleness power supply. Singleness power supply +Battery (+2.5～+5.5V) C3 10 uF Signal VDD Shutdown Control Shutdown Signal H: IC Active L: IC Shutdown SDNB C2 VDD B1 B2 PVDD Power VDD 150k (Typ.) Shutdown Control BIAS OSC ALC Audio Input + Differential Input 0 .1 uF IN+ A1 Class-D BTL Output OUT + C3 Ri Rf PWM HBridge Audio Input- 0 .1 uF INC1 OUT A3 Ri Rf Signal GND GND A2 B3 PGND Power GND Fig1. Differential Input(With Input Coupling Capacitor) +Battery Singleness power supply(+2.5～+5.5V) C3 10 uF Signal VDD Shutdown Control Shutdown Signal H: IC Active L: IC Shutdown SDNB C2 VDD B1 B2 Power VDD PVDD 150k (Typ.) Shutdown Control BIAS OSC ALC IN+ Audio Input + Differential Input A1 Ri Rf PWM HBridge OUT + C3 Class-D BTL Output IN- OUT A3 Audio Input - C1 Ri Rf GND A2 B3 PGND Audio Differential Input Signal GND Power GND Fig2. Differential Input(Without Input Coupling Capacitor) www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 5/19 2010.09 - Rev.A BD5467GUL Technical Note +Battery Singleness power supply (+2.5～+5.5V) C3 10uF Signal VDD Shutdown Control Shutdown Signal H: IC Active L: IC Shutdown SDNB C2 VDD B1 B2 PVDD Power VDD 150k (Typ) Shutdown Control BIAS OSC Audio Single End Input Audio Input 0.1uF IN + A1 ALC Ri Rf PWM HBridge OUT A3 OUT + C3 Class-D BTL Output 0.1uF IN C1 Ri Rf GND A2 B3 PGND Signal GND Fig3. Single end input (during IN+ input) +Battery Singleness power supply (+2.5～+5.5V) C3 10uF Signal VDD VDD B1 B2 PVDD Power VDD Shutdown Control Shutdown Signal H: IC Active L: IC Shutdown SDNB C2 150k (Typ.) Shutdown Control BIAS OSC ALC 0 . 1 uF IN + A1 Class-D BTL Output OUT + C3 Ri Rf PWM HBridge Audio Input 0.1uF IN C1 OUT A3 Ri Rf GND A2 B3 PGND Audio Single End Input Signal GND Power GND Fig4. Single end input (during IN- Input) www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 6/19 2010.09 - Rev.A BD5467GUL Technical Note ●About the difference of differential input and single end input ・BD5467GUL uses full differential amplifier. BD5467GUL is a Class-D but, in relation to Audio Input and Output, is same with the conventional Class-AB Amplifier. For simplicity purposes of the diagram, the Class-D amplifier output stage is omitted in the following explanation. About the resistor, signal on the diagram Gives meaning to changes of gain setting by means of ALC Control. 1) Differential Input Opposite phase Audio Input 0V IN+ A1 OUTA3 (IN+ - IN- ) 0V C1 INOpposite phase (OUT+ - OUT- ) C3 OUT+ Audio Input 2) Single end input (during IN+input ) 0V IN+ A1 Opposite phase OUTA3 Audio Input Same p hase (IN+ - IN- ) 0V ー IN- (OUT+ - OUT- ) C1 ー C3 OUT+ 3) Single end input (during IN-input ) 0V ー IN+ A1 ー OUTA3 (IN+ - IN- ) e e phas Opposit (OUT+ - OUT- ) Audio Input 0V C1 INOpposite phase C3 OUT+ ○About single end input ・Input is possible whether IN+ or IN- Pin. Don’t make input pin open, through the input coupling capacitor, please connect to GND as seen on the example above. Audio input pin should make “mute” condition, not “open” condition when you don’t input any signal. ・During single end input IN+ and IN-, there is a difference with the phase relation of input and output. Because of differential amplifier, if input (IN+ - IN-), output (OUT+ - OUT-), the audio input and output phase relation will become: Phase Audio Input ⇒ output (OUT+ - OUT-) IN+ Input Same phase IN- Input Opposite phase www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 7/19 2010.09 - Rev.A BD5467GUL ○Gain calculation 【Differential Input】 +Battery Technical Note 【single end input】 + Battery Cs Cs VDD B1 B2 PVDD VDD B1 B2 PVDD Shutdown Signal H: IC Active L: IC Shutdown SDNB C2 150k (Typ.) Shutdown Control BIAS Shutdown Signal H :IC Active L : IC Shutdown SDNB C2 150k (Typ .) Shutdown Control BIAS OSC ALC < Audio Source > 0.1uF Vins Ci 0.1uF Ci IN+ A1 VIN (=2Vins) INC1 OSC ALC OUT+ C3 Ri Rf PWM HBridge < Audio Source > 0.1uF Vins Ci 0.1uF Ci IN+ A1 VIN (=Vins) INC1 Ri Rf PWM HBridge OUT+ C3 Vins OUTA3 OUTA3 Ri Rf GND A2 B 3 PGND Ri Rf GND A2 B 3 PGND When Input Level is calculated at IC typical and audio source typical, when input coupling capacitor (Ci) value is large enough, every gain during the differential input and single end input will become: Typical Input Level IC Audio Source Formula② Differential Output Single End Output Formula① Formula① 1. IC reference(Difference Input, Single End Input)：Formula ① VIN means the Input Voltage between IC Input Pin (IN+, IN-), VOUT means the output voltage between IC Output Pin ( OUT+, OUT- ). During differential input and single end input, the gain calculation formula at IC reference which includes ALC operation is written below: Gain = 20×log | VOUT/VIN | =+13～-2 (Typ.) [dB] ・・・ Formula① 2. Audio Source reference(Differential Input)： Formula ② When the input level of audio source is Vins, the relation with the input voltage VIN between IC input pin is written below: Vins = VIN / 2 During differential input, at audio source referece that includes ALC operation, gain calculation formula will become: Gain = 20×log | VOUT / Vins | = 20×log | 2×VOUT / VIN | = +19～+4 (Typ.) [dB] ・・・Formula② 3. Audio Source reference (Single End Input)：Formula ① When the Input level of audio source is Vins, the relation with input voltage VIN between IC input pin (IN+,IN-) becomes: Vins = VIN During single end input, at the audio source that includes ALC operation, gain calculation formula becomes: Gain = 20×log | VOUT / Vins | = 20×log | VOUT / VIN | = +13～-2 (Typ.) [dB] ・・・ Formula① www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 8/19 2010.09 - Rev.A BD5467GUL ●Audio Input Pin External LPF connection example Technical Note ■External LPF connection example st The connection example of 1 -order LPF which is formed at Resistor RLPF and Capacitor CLPF , to the Audio Input Pin IN+/- (A1, C1 Pin) is shown below. The cut frequency of input LPF, together with the single end input and differential input is written below: fcLPF = 1 / (2×π×RLPF×CLPF) [Hz] Ex) fcLPF=10kHz ⇒ CLPF =0.01μF, RLPF=1.59kΩ 1) During single end input When LPF is connected to audio input pin at single end input setting, at start-up characteristics of audio input pin IN+/-, during start-up with unbalance (power supply ON/OFF, or shutdown ON/OFF), there is a risk that POP sound will occur so please be careful. When no audio input, and in order to prevent output noise, please make previous IC “mute” condition, not “open” condition. Please refer at the same time to POP Sound countermeasure example. +Battery Cs VDD B1 B2 PVDD Shutdown Signal H： IC Active L ： IC Shutdown SDNB C2 150 k (Typ.) ALC Input Impedance Front IC Ro RLPF Ci CLPF RLPF Pop sound → countermeasure CLPF Ci IN C1 Ri Rf GND A2 B3 PGND IN + A1 Ri Rf HBridge A3 OUTOUT+ C3 PWM Speaker OSC Shutdown Control BIAS www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 9/19 2010.09 - Rev.A BD5467GUL Technical Note 2) Differential Input +Battery Cs VDD B1 B2 PVDD Shutdown Signal H： IC Active L： IC Shutdown SDNB C2 150 k (Typ.) Input Impedance Front IC Ro RLPF CLPF Ro RLPF CLPF Ci INC1 Ri Rf GND A2 B3 PGND LPF Ci IN+ A1 PWM HBridge A3 OUTRi Rf OUT+ C3 Speaker ALC OSC Shutdown Control BIAS ■Caution during External LPF Setting External LPF Resistor RLPF which is composed of IC input resistor Ri, forms input impedance. The bigger the resistor value of LPF resistor RLPF, the more it will decrease the gain. When the input capacitor Ci has enough large capacity value, the relation among external LPF resistor RLPF and IC input resistor Ri and Gain will become: Gain = 20×log | Rf / (Ri + RLPF ) | [dB] Input resistor Ri of BD5467GUL and resistor value of feedback resistor Rf will become the following below, during ALC operation, changes at ±1dB step, and becomes 16 stages switch specs. #1. Ri=55kΩ(Typ.), Rf=245kΩ(Typ.)@Gain=13dB #2. Ri=60kΩ(Typ.), Rf=240kΩ(Typ.)@Gain=12dB #3. Ri=66kΩ(Typ.), Rf=234kΩ(Typ.)@Gain=11dB ↓ #15. Ri=159kΩ(Typ.), Rf=141kΩ(Typ.)@Gain=-1dB #16. Ri=167kΩ(Typ.), Rf=132kΩ(Typ.)@Gain=-2dB Also with the driver ability of previous IC step, after checking, constant setting of external LPF and Resistor RLPF. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 10/19 2010.09 - Rev.A BD5467GUL ●Evaluation Board Circuit Diagram VDD C3 10uF Technical Note Connect to GND Connect to Power Supply (VDD=+2.5～5.5V) VDD VDD B1 B2 PVDD SDNB Shutdown Signal H： IC Active L： IC Shutdown C2 150k (Typ.) Shutdown Control BIAS OSC Audio Input+ ALC 0.1uF C2 IN+ A1 Ri Rf OUT+ C3 PWM HBridge OUTA3 Differential Input Audio Input- 0.1uF C1 INC1 Ri Rf Audio Input GND A2 B3 PGND GND Connect to input signal Connect to Speaker ※Power Supply terminals VDD(B1), PVDD(B2) are SHORT in the board pattern and use a single power. ●Evaluation Board Parts List Qty. 2 1 1 1 1 Item C1, C2 C3 S1 U1 PCB1 Description Capacitor, 0.1μF Capacitor, 10μF Slide Switch IC, BD5467GUL, Mono Class-D Audio Amplifier Printed-Circuit Board, BD5467GUL EVM SMD Size 0603 A (3216) 4mm X 10.2mm 1.7mm X 1.7mm WLCSP Package ― Manufacturer/ Part Number Murata GRM188R71C104KA01D ROHM TCFGA1A106M8R NKK SS-12SDP2 ROHM BD5467GUL ― ●About the external part ①Input coupling capacitor (C1, C2) Input coupling capacitor is 0.1μF. Input impedance during maximum gain 13dB is 55kΩ (Typ.). A high-pass filter is composed by the input coupling capacitor and the input impedance. Cut-off frequency”fc” by the formula below, through input coupling capacitor C1(=C2) and input impedance Ri. fc  1 2  Ri  C1 In case of Ri=55kΩ, C1(=C2)=0.1μF, cut-off frequency is about 29Hz ②Power Supply Decoupling Capacitor (C3) Power Supply Decoupling Capacitor is 10uF. When the capacity value of Power Supply Decoupling Capacitor is made small, it will have an influence to the audio characteristics. When making it small, be careful with the audio characteristics at actual application. ESR (equivalent series resistor) is low enough; please use capacitor with capacity value of 1μF or more. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 11/19 2010.09 - Rev.A BD5467GUL ●Evaluation Board PCB Layer TOP Layer Silk Pattern Technical Note TOP Layer Bottom Layer www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 12/19 2010.09 - Rev.A BD5467GUL Technical Note ●About IC Thermal Design The IC Characteristics has a big relation with the temperature that will be used, to exceed the maximum tolerance junction temperature, can deteriorate and destroy it. Instant destruction and long-time operation, from these 2 standpoints, there is a need to be careful with regards to IC thermal. Please be careful with the next points. The absolute maximum rating of IC shows the maximum junction temperature (TjMAX.) or the operation temperature range (Topr), so refer to this value, use Pd-Ta characteristics (Thermal reduction ratio curve). If input signal is excessive at a state where heat radiation is not sufficient, there will be TSD (Thermal Shutdown) For TSD, the chip temperature operates at around 180℃, releases if its around 120℃ or less. Since the aim is to prevent damage on the chip, please be careful because the long use time at the vicinity where TSD operates can deteriorate the dependency of the IC. Thermal Reduction Ratio Curve Reference Data VCSP50L1 2.0 Measurement Condition : ROHM Typical Board Mount Board Size : 50mmx58mm 1.5 Power Dissipation Pd (W) 1.0 0.69W θja = 181.8℃/W 0.5 0.0 0 25 50 75 85 100 125 150 Perimeter Temperature Ta(℃) Note: This value is the real measurement, but not the guaranteed value. The value of power dissipation changes based on the board that will be mounted. The power dissipation of main IC during the heat dissipation design of many mounted boards, will become bigger than the value of the above graph. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 13/19 2010.09 - Rev.A BD5467GUL ●Evaluation data – Typical characteristics (1/4) 90 80 VDD = 5.0V Technical Note Efficiency - Output power f=1kHz, RL=8Ω+33uH Efficiency vs Output power f=1kHz, RL=4Ω+33uH Evaluation data - Ty pical Characteristics (1/4) 80 70 VDD = 3.6V 70 Efficiency [%] 60 50 40 30 20 10 0 0 0.1 VDD = 3.6V VDD = 5.0V 60 Efficiency [%] VDD = 2.5V VDD = 2.5V 50 40 30 20 10 VDD=2.5V VDD=3.6V VDD=5.0V VDD=2.5V VDD=3.6V VDD=5.0V 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Output Power [W] 0.9 1 1.1 1.2 0 0 0.2 0.4 0.6 0.8 1 1.2 Output Power [W] 1.4 1.6 1.8 2 Fig.5 Figure.1 Supply Current vs Output power f=1kHz, RL=8Ω+33uH 450 400 250 VDD = 5.0V Fig.6 Figure.2 Supply Current vs Output power f=1kHz, RL=4Ω+33uH 300 350 VDD = 5.0V 200 Icc [mA] 150 VDD = 2.5V 300 Icc [mA] VDD = 3.6V VDD = 3.6V VDD = 2.5V 250 200 150 100 50 0 100 50 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Output Power [W] 0.8 0.9 VDD=2.5V VDD=3.6V VDD=5.0V VDD=2.5V VDD=3.6V VDD=5.0V 1 1.1 1.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 Output Power [W] 1.6 1.8 2 Fig.7 Figure.3 Power dissipation vs Output power f=1kHz, RL=8Ω+33uH Fig.8 Figure.4 Power dissipation vs Output power f=1kHz, RL=4Ω+33uH 0.45 0.40 0.35 VDD = 5.0V 0.3 0.25 0.2 Pd [W] 0.15 0.1 VDD = 2.5V VDD = 5.0V 0.30 Pd [W] 0.25 0.20 VDD = 2.5V VDD = 3.6V VDD = 3.6V 0.05 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Output Power [W] 0.9 VDD=2.5V VDD=3.6V VDD=5.0V 0.15 0.10 0.05 0.00 1.2 VDD=2.5V VDD=3.6V VDD=5.0V 1 1.1 0 0.2 0.4 0.6 0.8 1 1.2 Output Power [W] 1.4 1.6 1.8 2 Figure.5 Fig.9 Supply Current vs Power Supply RL=No load, No signal 5.0 4.5 4.0 3.5 Fig.10 Figure.6 Shutdown Current vs Power Supply RL=No load, No signal 5.0 4.5 4.0 3.5 ISDN [μA] 0 1 2 3 VDD [V] 4 5 6 ICC [mA] 3.0 2.5 2.0 1.5 1.0 0.5 0.0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 VDD [V] 4 5 6 Fig.11 Figure.7 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Fig.12 Figure.8 14/19 2010.09 - Rev.A BD5467GUL Evaluation data - Ty pical Characteristics (2/4) ●Evaluation data – Typical characteristics (2/4) 2.0 1.8 1.6 Output Power [W] 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 4 8 12 16 20 RL[Ω] 24 28 32 VDD = 3.6V VDD = 2.5V VDD = 5.0V Technical Note Output power vs Load Resistance THD+N=1%, f=1kHz, 400Hz-30kHz BPF VDD=2.5V VDD=3.6V VDD=5.0V Fig.13 Figure.9 Output Power vs Power Supply RL=8Ω, f=1kHz, 400Hz-30kHz BPF 1.2 1.0 Output Power [W] 0.8 0.6 0.4 0.2 0.0 2 2.5 3 3.5 4 VDD[V] 4.5 5 5.5 6 THD+N≦1% Output Power [W] 2.5 Output Power vs Power Supply RL=4Ω, f=1kHz, 400Hz-30kHz BPF 2.0 1.5 1.0 THD+N≦1% 0.5 0.0 2 2.5 3 3.5 4 VDD[V] 4.5 5 5.5 6 Fig.14 Figure.10 Total Harmonic Distortion + Noise vs Output Power RL=8Ω, f=1kHz, 400Hz-30kHz BPF 100 VDD = 2.5V VDD = 3.6V VDD = 5.0V VDD = 3.6V Fig.15 Figure.11 Total Harmonic Distortion + Noise vs Output Power RL=4Ω, f=1kHz, 400Hz-30kHz BPF VDD = 2.5V VDD = 3.6V VDD = 5.0V VDD = 2.5V 100 VDD = 3.6V 10 THD+N [%] THD+N [%] 10 VDD = 2.5V VDD = 5.0V 1 1 VDD = 5.0V 0.1 0.01 0.1 Output Power [W] 1 10 0.1 0.01 0.1 Output Power [W] 1 10 Fig.16 Figure.12 Total Harmonic Distortion + Noise vs Frequency VDD=5.0V RL=8Ω, 400Hz-30kHz BPF 10 Po=25mW Po=100mW Po=250mW 1 THD+N [%] Po = 25mW Fig.17 Figure.13 Total Harmonic Distortion + Noise vs Frequency VDD=3.6V RL=8Ω, 400Hz-30kHzBPF Po=25mW Po=100mW Po=250mW 1 THD+N [%] 10 Po = 100mW Po = 100mW Po = 25mW Po = 250mW 0.1 0.1 Po = 250mW 0.01 10 100 1k Frequency [Hz] 10k 100k 0.01 10 100 1k Frequency [Hz] 10k 100k Fig.18 Figure.14 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Fig.19 Figure.15 15/19 2010.09 - Rev.A BD5467GUL Evaluation data - Ty pical Characteristics (3/4) ●Evaluation data – Typical characteristics (3/4) Total Harmonic Distortion + Noise vs Frequency VDD=2.5V, RL=8Ω, 400Hz-30kHz BPF 10 Po=25mW Po=100mW Po=150mW 1 THD+N [%] 10 VDD=2.5V VDD=3.6V VDD=5.0V 1 THD+N [%] VDD = 3.6V Technical Note Total Harmonic Distortion + Noise vs Frequency RL=8Ω, Po=125mW, 400Hz-30kHz BPF Po = 100mW Po = 25mW 0.1 Po = 150mW 0.1 VDD = 5.0V VDD = 2.5V 0.01 10 100 1k Frequency [Hz] 10k 100k 0.01 10 100 1k Frequency [Hz] 10k 100k Fig.20 Figure.16 Gain vs Frequency RL=8Ω, Vin=0.5Vpp, 400Hz-30kHz BPF VDD = 5.0V Fig.21 Figure.17 Gain_vs_Frequency RL=4Ω, Vin=0.5Vpp, 400Hz-30kHz BPF VDD = 5.0V 14 12 10 Gain [dB] 8 6 4 2 0 10 14 12 10 Gain [dB] 8 6 4 2 0 VDD=2.5V VDD=3.6V VDD=5.0V VDD = 3.6V VDD = 2.5V VDD=2.5V VDD=3.6V VDD=5.0V VDD = 3.6V VDD = 2.5V 100 1k Frequency [Hz] 10k 100k 10 100 1k Frequency [Hz] 10k 100k Fig.22 Figure.18 Output Power vs Input Level @ sweep up RL=8Ω, f=1kHz, 400Hz-30kHz BPF 10 VDD = 5.0V Fig.23 Figure.19 Output Power vs Input Level @ sweep up RL=4Ω,f=1kHz, 400Hz-30kHz BPF 10 VDD = 5.0V 1 1 Output Power [W] VDD = 3.6V Output Power [W] VDD = 3.6V 100m VDD = 2.5V 100m VDD = 2.5V 10m VDD = 2.5V VDD = 3.6V VDD = 5.0V -25 -20 -15 -10 Vin [dBV] -5 0 5 10m VDD = 2.5V VDD = 3.6V VDD = 5.0V -25 -20 -15 -10 -5 Vin [dBV] 0 5 10 15 1m -30 1m -30 Fig.24 Figure.20 Total Harmonic Distortion + Noise vs Input Level @ sweep up RL=8Ω,f=1kHz, 400Hz-30kHz BPF 100 VDD = 2.5V VDD = 3.6V VDD = 5.0V 10 THD+N [%] THD+N [%] 100 Fig.25 Figure.21 Total Harmonic Distortion + Noise vs Input Level @ sweep up RL=4Ω,f=1kHz, 400Hz-30kHz BPF VDD = 2.5V VDD = 3.6V VDD = 5.0V VDD = 2.5V VDD = 3.6V 10 1 VDD = 2.5V VDD = 3.6V VDD = 5.0V 1 VDD = 5.0V 0.1 -30 -25 -20 -15 -10 Vin [dBV] -5 0 5 0.1 -30 -25 -20 -15 -10 -5 Vin [dBV] 0 5 10 15 Fig.26 Figure.22 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Fig.27 Figure.23 16/19 2010.09 - Rev.A BD5467GUL Evaluation data characteristics (4/4) ●Evaluation data – Typical - Ty pical Characteristics (4/4) ALC Limit Operation Waveform f=1kHz 2V / Div. 2V / Div. Technical Note ALC Release Operation Waveform f=1kHz INPUT INPUT OUTPUT OUTPUT -1 0 1 2 3 4 Time [msec] 5 6 7 -0.4 0 0.4 0.8 1.2 1.6 Time [sec] 2 2.4 2.8 Fig.28 Figure.24 Waveform during Start-up 1V / Div. 1V / Div. INPUT INPUT Fig.29 Figure.25 Waveform during Shutdown OUTPUT Ton ( Wake-up Time ) OUTPUT -0.2 0 0.2 0.4 0.6 0.8 Time [msec] 1 1.2 1.4 -0.2 0 0.2 0.4 0.6 0.8 Time [msec] 1 1.2 1.4 Fig.30 Figure.26 FFigure.27 ig.31 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 17/19 2010.09 - Rev.A BD5467GUL Technical Note ●Notes for use (1) The numerical value and the data of the mention are a design representative value and are not the one which guarantees the value. (2) It is convinced that it should recommend application circuit example but in case of use, we request the confirmation of the characteristic more sufficiently. When changing an external part fixed number and becoming use, it considers sprawl of the external part and our company's LSI including the transition characteristic in addition to the stillness characteristic and so on, see and fix an enough margin. (3) Absolute maximum ratings This IC may be damaged if the absolute maximum ratings for the applied voltage, temperature range, or other parameters are exceeded. Therefore, avoid using a voltage or temperature that exceeds the absolute maximum ratings. If it is possible that absolute maximum ratings will be exceeded, use fuses or other physical safety measures and determine ways to avoid exceeding the IC's absolute maximum ratings. (4) GND terminal’s potential Try to set the minimum voltage for GND terminal’s potential, regardless of the operation mode. (5) Shorting between pins and mounting errors When mounting the IC chip on a board, be very careful to set the chip's orientation and position precisely. When the power is turned on, the IC may be damaged if it is not mounted correctly. The IC may also be damaged if a short occurs (due to a foreign object, etc.) between two pins, between a pin and the power supply, or between a pin and the GND. (6) Operation in strong magnetic fields Note with caution that operation faults may occur when this IC operates in a strong magnetic field. (7) Thermal design Ensure sufficient margins to the thermal design by taking in to account the allowable power dissipation during actual use modes, because this IC is power amplifier. When excessive signal inputs which the heat dissipation is insufficient condition, it is possible that thermal shutdown circuit is active. (8) Thermal shutdown circuit This product is provided with a built-in thermal shutdown circuit. When the thermal shutdown circuit operates, the output transistors are placed under open status. The thermal shutdown circuit is primarily intended to shut down the IC avoiding thermal runaway under abnormal conditions with a chip temperature exceeding Tjmax=+150℃, and is not intended to protect and secure an electrical appliance. (9) Load of the output terminal This IC corresponds to dynamic speaker load, and doesn't correspond to the load except for dynamic speakers. When using speaker load 8Ω or less (especially 4Ω), there will be a risk of generating distortion at the speaker output wave form during ALC limit operation. (10) The short protection of the output terminal This IC is built in the short protection for a protection of output transistors. When the short protection is operated, output terminal become Hi-Z condition and is stopped with latch. Once output is stopped with latch, output does not recover automatically by canceling the short-circuiting condition. The condition of stopping with latch is cancelled, when power supply or mute signal is turned off and turned on again. (11) Operation Range The rated operating power supply voltage range (VDD=+2.5V ～ +5.5V) and the rated operating temperature range (Ta=-40℃～+85℃) are the range by which basic circuit functions is operated. Characteristics and rated output power are not guaranteed in all power supply voltage ranges or temperature ranges. (12) Electrical Characteristics Every audio characteristics list of the limit output power, total harmonic distortion, maximum gain, ALC limit level, ALC release level etc. shows the typical characteristics of the device, highly dependent to the board lay-out, parts to be used, power supply. The value when the device and each component are directly mounted to the board of Rohm. (13) Power Supply Since the Power Supply Pin for signal (VDD) and power supply for Power (PVDD) is SHORT at internal, short the board pattern, then use a single power supply. Also, the power supply line of class-D speaker amplifier flows big peak energy. It will influence the audio characteristics based on the capacity value of power supply decoupling capacitor, arrangement. For the power supply decoupling capacitor, please arrange appropriately the low capacity (1μF or more) of ESR (equivalent series resistor) directly near to IC Pin. (14) ALC (Automatic Level Control) Function The ALC automatically adjusts the audio output level, and a function that prevents the over output to the speaker. When ALC function is working, gain switches at zero-cross point of audio output normally. If the time that audio output reaches to zero-cross point is long, gain switches at about 1msec later (attack time), at about 25msec later (release time). So, attack time and release time will change at audio input frequency. ALC parameter is fixed. ALC operation doesn’t correspond to noise of impulse. Also, ALC limit control will become a power supply tracking type, limit output power is dependent to power supply voltage. The ALC characteristics of limit output power, ALC limit and release limit will be influenced by the shaking so please be careful. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 18/19 2010.09 - Rev.A BD5467GUL ●Ordering part number Technical Note B D 5 Part No. 4 6 7 G U L - E 2 Part No. Package GUL：VCSP50L1 Packaging and forming specification E2: Embossed tape and reel VCSP50L1(BD5467GUL) 1PIN MARK 1.70±0.05 Tape Quantity 0.55MAX 0.1±0.05 Embossed carrier tape 3000pcs E2 The direction is the 1pin of product is at the upper left when you hold 1.70±0.05 Direction of feed S ( reel on the left hand and you pull out the tape on the right hand ) 0.06 S 9-φ0.25±0.05 0.05 A B (φ0.15)INDEX POST C B A 1 A B P=0.5×2 0.35±0.05 0.35±0.05 P=0.5×2 2 3 1pin Direction of feed (Unit : mm) Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 19/19 2010.09 - Rev.A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. R1010A