bd5468gul-e2 ROHM Co. Ltd., bd5468gul-e2 Datasheet - Page 5

• Manufacturer Part Number: bd5468gul-e2
• Description: Analog Input Monaural Class-d Speaker Amplifier
• Manufacturer: ROHM Co. Ltd.

●Application circuit example
© 2010 ROHM Co., Ltd. All rights reserved.
BD5468GUL
www.rohm.com
Differential
Differential
Input
Input
SHORT the power supply pin VDD (B1), PVDD (B2) at board pattern, then use singleness power supply.
Audio Differential Input
Audio Differential Input
Input -
Audio
Shutdown Signal
Input +
Input -
Input +
Audio
Audio
Audio
Shutdown Signal
H : IC Active
L: IC Shutdown
H : IC Active
L: IC Shutdown
Shutdown Control
Shutdown Control
0 .1 uF
0 .1 uF
SDNB
SDNB
IN+
IN+
IN-
IN-
C 2
C 1
C 2
C 1
A1
A1
Fig1. Differential Input (With Input Coupling Capacitor)
Fig2. Differential Input (Without Input Coupling Capacitor)
Ri
Ri
Ri
Ri
Signal VDD
Signal GND
Signal VDD
Signal GND
( Typ.)
( Typ.)
150k
150k
Rf
Rf
Rf
Rf
VDD
VDD
GND
GND
5/19
Shutdown
Shutdown
Control
Control
ALC
ALC
B 1
B 1
A2
A2
+Battery
+Battery
B 3
B3
B2
B 2
PWM
BIAS
OSC
PWM
BIAS
OSC
Singleness power supply (+2.5～+5.5V)
PGND
PGND
PVDD
PVDD
Singleness power supply(+2.5～+5.5V)
Power GND
10 uF
10 uF
C 3
C 3
Power VDD
Power VDD
Power GND
H-
Bridge
H-
Bridge
C 3
A 3
C 3
A 3
OUT +
OUT -
OUT +
OUT -
Class-D BTL Output
Class-D BTL Output
Technical Note
2010.09 - Rev.A