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PDF BD5466GUL Data sheet ( Hoja de datos )

Número de pieza BD5466GUL
Descripción Analog Input Monaural Class-D Speaker Amplifier
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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No Preview Available ! BD5466GUL Hoja de datos, Descripción, Manual

Small-sized Class-D Speaker Amplifiers
Analog Input
Monaural Class-D Speaker Amplifier
BD5466GUL
No.10101EAT06
Description
BD5466GUL 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
BD5465/67/68GUL (ALC Function, Gain Fixed Goods) Pin Compatible Specs
5) Maximum Gain: 18dB(Typ.) [during ALC operation, 183dB@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




BD5466GUL pdf
BD5466GUL
Technical Note
Application circuit example
SHORT the power supply pin VDD (B1), PVDD (B2) at board pattern, then use singleness power supply.
Singleness power supply (+2.5+5.5V)
+Battery
Shutdown Control
Shutdown Signal
H: IC Active
L: IC Shutdown
SDNB
C2
Signal VDD
VDD B 1
B2 PVDD
C3
10 uF
Power VDD
150k
(Typ.)
Shutdown
Control
BIAS
OSC
Differential
Input
Audio
Input +
Audio
Input-
0 .1 uF
IN+
A1
Ri
0 .1 uF
IN-
C1
Ri
ALC
Rf
Rf
Audio Differential Input
Signal GND GND A2
PWM
H-
Bridge
B 3 PGND Power GND
Class-D BTL Output
OUT +
C3
OUT -
A3
Fig1. Differential Input(With Input Coupling Capacitor)
+Battery
Singleness power supply(+2.5+5.5V)
Shutdown Control
Shutdown Signal
H: IC Active
L: IC Shutdown
SDNB
C2
Signal VDD
VDD B 1
B 2 PVDD
C3
10 uF
Power VDD
150k
(Typ.)
Shutdown
Control
BIAS
OSC
Differential
Input
Audio
Input +
Audio
Input -
IN+
A1
Ri
IN-
C1
Ri
ALC
Rf
Rf
Audio Differential Input
GND A2
Signal GND
PWM
H-
Bridge
B3 PGND
Power GND
OUT + Class-D BTL Output
C3
OUT -
A3
Fig2. Differential Input(Without Input Coupling Capacitor)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/19
2010.09 - Rev.A

5 Page





BD5466GUL arduino
BD5466GUL
Evaluation Board Circuit Diagram
VDD
VDD
VDD B1
C3
10uF
B2 PVDD
SDNB
Shutdown Signal
C2
HIC Active
LIC Shutdown
150k
(Typ.)
Shutdown
Control
Audio Input
Audio
Input+
Differential
Input
Audio
Input-
0.1uF
C2
IN+
Ri
A1
0.1uF IN-
C1
Ri
C1
ALC
Rf
Rf
GND A2
GND
BIAS
OSC
PWM
H-
Bridge
B3 PGND
Technical Note
Connect to GND
Connect to Power Supply
(VDD=+2.55.5V)
OUT+
C3
OUT-
A3
Connect to input signal
B D5466GUL
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. Item
2 C1, C2
1 C3
Description
Capacitor, 0.1μF
Capacitor, 10μF
1 S1
Slide Switch
1 U1
IC, BD5466GUL,
Mono Class-D Audio Amplifier
1 PCB1
Printed-Circuit Board,
BD5466GUL 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
BD5466GUL
About the external part
Input coupling capacitor (C1, C2)
Input coupling capacitor is 0.1μF.
Input impedance during maximum gain 18dB is 33.5k(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 [Hz]
Ri C1
In case of Ri=33.5k, C1(=C2)=0.1μF, cut-off frequency is about 48Hz
Power 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

11 Page







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