bd5468gul-e2 ROHM Co. Ltd., bd5468gul-e2 Datasheet - Page 2

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

●Electrical Characteristic (Ta=+25℃, VDD=+3.6V, Unless specified otherwise)
© 2010 ROHM Co., Ltd. All rights reserved.
BD5468GUL
www.rohm.com
＜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
SDNB terminal
Inflow Current
*1
●Shutdown control
●ALC Parameter
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.
～1ms/1dB @ fin=100Hz
～0.5ms/1dB @ fin=1kHz
～0.05ms/1dB @ fin=10kHz
Filter bandwidth for measurement :400～30kHz, LC filter for AC measurement :L=22μH / C=1μF, BTL :Voltage between A3,C3
Control terminal
Attack Time (Typ.)
SDNB
Parameter
H
L
IC operation (active)
IC stop (shutdown)
H
H
L
L
Conditions
Symbol
V
V
I
T
I
G
V
SDBNH
SDNBL
I
V
f
T
SDNBH
SDNBL
I
SDN
P
HD+N
OSC
Ri
CC
MAX
REL
LIM
ON
O
ALC Parameter
Release Time(Typ.)
@ fin=100～10kHz
×VDD
4ms/1dB
×VDD
×VDD
0.035
Min.
1.19
0.73
150
1.5
1.4
―
―
12
36
12
―
-5
0
2
2/19
×VDD
×VDD
×VDD
Limits
0.044
0.01
Typ.
1.68
1.34
1.02
250
0.2
13
55
24
―
―
―
3
2
×VDD
×VDD
×VDD
0.055
Max.
VDD
1.89
1.71
350
Gain Switch Step (Typ.)
1.5
0.4
14
74
36
6
2
1
5
2
±1dB
msec
Unit
mA
Vpp
Vpp
kHz
μA
dB
kΩ
μA
μA
W
%
V
V
IC Active, No Load
V
IC Shutdown
V
BTL, f=1kHz, R
THD+N≦1% , *1
BTL, fin=1kHz, R
P
BTL, *1
BTL, *1
BTL, *1
Gain=13dB
IC Active
IC Shutdown
V
V
SDNB
SDNB
O
SDNB
SDNB
=0.3W, *1
=VDD
=GND
=3.6V
=0V
Conditions
Technical Note
2010.09 - Rev.A
L
=8Ω
L
=8Ω