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BD5468GUL の電気的特性と機能

BD5468GULのメーカーはROHM Semiconductorです、この部品の機能は「Analog Input Monaural Class-D Speaker Amplifier」です。


製品の詳細 ( Datasheet PDF )

部品番号 BD5468GUL
部品説明 Analog Input Monaural Class-D Speaker Amplifier
メーカ ROHM Semiconductor
ロゴ ROHM Semiconductor ロゴ 




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BD5468GUL Datasheet, BD5468GUL PDF,ピン配置, 機能
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=8, THD+N1%]
: 0.5W (Typ.) [VDD=3.6V, RL=8, THD+N1%]
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
-0.3VDD+0.3
IN+, IN- Pin Input Range
VIN -0.3VDD+0.3
In case Ta=+25or 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

1 Page





BD5468GUL pdf, ピン配列
BD5468GUL
Technical Note
Measurement Circuit Diagram
<Audio Characteristics Method of Evaluation >
In case LC filter is not used
+Battery
Shutdown Signal
H : IC Active
L : IC Shutdown
SDNB
C2
VDD B1
C3
10uF
B2 PVDD
150k
(Typ .)
Shutdown
Control
BIAS
OSC
0. 1uF
C2
IN +
A1
Ri
0. 1uF
C1
IN -
C1
Ri
ALC
Rf
PWM
H-
Bridge
Rf
GND A 2
B3 PGND
OUT +
C3
OUT -
A3
BTL
Measurement Instrument
LPF
AP AUX-0025
Audio
Precision
(AP)
In case LC filter is used
+Battery
Shutdown Signal
H : IC Active
L : IC Shutdown
SDNB
C2
VDD B1
C3
10uF
B2 PVDD
150k
(Typ .)
Shutdown
Control
BIAS
OSC
0.1uF
C2
IN +
A1
Ri
0.1uF
C1
IN -
C1
Ri
ALC
Rf 22uH
C3
PWM
H-
Bridge
1 uF
1uF
A3
Rf 22uH
GND A 2
B3 PGND
BTL
Audio Precision
(AP)
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:
fc 1 1 34kHz
2LC 222H1F
For Inductor L, please use huge current type.
(Reference)TDK : SLF12575T-220M4R0
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
3/19
2010.09 - Rev.A


3Pages


BD5468GUL 電子部品, 半導体
BD5468GUL
Technical Note
+Battery
Singleness power supply (+2.5+5.5V)
Shutdown Control
Shutdown Signal
H: IC Active
L: IC Shutdown
SDNB
C2
Signal VDD
150k
(Typ.)
VDD B1
Shutdown
Control
C3
10 uF
B2 PVDD Power VDD
BIAS
OSC
Audio Single End Input
Audio
Input
0. 1uF
IN +
A1
Ri
ALC
Rf
0. 1uF
IN -
C1
Ri
Rf
Signal GND GND A 2
PWM
H-
Bridge
B3 PGND Power GND
Class-D BTL Output
OUT +
C3
OUT -
A3
Fig3. Single end input (during IN+ input)
+Battery
Singleness power supply (+2.5+5.5V)
Shutdown Control
Shutdown Signal
H: IC Active
L: IC Shutdown
SDNB
C2
Signal VDD
VDD B1
150k
(Typ .)
Shutdown
Control
Audio
Input
0. 1uF
IN +
A1
Ri
0. 1uF
IN -
C1
Ri
ALC
Rf
Rf
C3
10uF
Power VDD
B2 PVDD
BIAS
OSC
Class-D BTL Output
PWM
H-
Bridge
OUT +
C3
OUT -
A3
Audio Single End Input
Signal GND GND A 2
B3 PGND Power GND
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
Fig4. Single end input (during IN- Input)
6/19
2010.09 - Rev.A

6 Page



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部品番号部品説明メーカ
BD5468GUL

Analog Input Monaural Class-D Speaker Amplifier

ROHM Semiconductor
ROHM Semiconductor


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