BD5424EFS_10 Datasheet, PDF (2/18 Pages) Rohm – Analog Input/BTL Output Class-D Speaker Amplifier

BD5424EFS
Technical Note
●Operating Conditions
The following values assume Ta =25℃. Check for latest values in delivery specifications.
Parameter
Symbol
Ratings
Unit
Conditions
Supply voltage
VCC
+10 ~ +18
V Pin 7, 8, 15, 16, 29, 30, 37, 38, 40
Minimum load resistance
(Note 5) Pd should not be exceeded.
RL
3.6
Ω (Note 5)
●Electrical Characteristics
Except otherwise specified Ta = 25℃, VCC = 12V, fIN = 1kHz, Rg = 0Ω, RL = 8Ω, MUTEX="H", MS="L", SDX="H".
For latest values, refer to delivery specifications.
Parameter
Whole circuit
Circuit current 1 (Sampling mode)
Symbol
ICC1
Limits
30
Unit
Conditions
mA With no signal
Circuit current 2 (Muting mode)
Control circuit
“H” level input voltage
ICC2
12
mA MUTEX = “L”
VIH
2.3 ~ 12
V SDX, MUTEX, MS
“L” level input voltage
Audio circuit
Voltage gain
VIL
0 ~ 0.8
V SDX, MUTEX, MS
GV
28
dB PO = 1W
Maximum output power 1 (Note 6)
PO1
10
W THD+N = 10%
Maximum output power 2 (Note 6)
PO2
20
W Vcc=17V, THD+N = 10%
Total harmonic distortion (Note 6)
THD
0.1
% PO = 1W, BW=20Hz ~ 20kHz
Crosstalk
CT
85
dB PO = 1W, Rg = 0Ω, BW = IHF-A
Output noise voltage (Sampling mode) VNO
80
µVrms Rg = 0Ω, BW = IHF-A
Residual noise voltage (Muting mode) VNOM
35
µVrms Rg = 0Ω, BW = IHF-A, MUTEX = “L”
Mute Attenuation
Gvm
98
dB Po =1W, BW =IHF-A, MUTEX = “L”
Internal sampling clock frequency
FOSC
350
kHz MS = “L” (In master operation)
(Note 6) The rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components,
and power supplies. The reference values are those applicable to the device and components directly installed on a board specified by us.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/17
2010.05 - Rev.B