BD5423MUV_10 Datasheet, PDF (2/17 Pages) Rohm – Analog Input / BTL Output Class-D Speaker Amplifier

BD5423MUV
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～+16.5
V Pin 2, 14, 15, 22, 23, 38, 39, 46, 47
Load resistance
(Note 5) Pd should not be exceeded.
RL
4 ～ 16
Ω (Note 5)
●Electrical characteristics
Except otherwise specified Ta = 25℃, VCC = 12V, fIN = 1kHz, Rg = 0Ω, RL = 8Ω, MUTEX="H", MS="L"
For latest values, refer to delivery specifications.
Parameter
Symbol
Limits
Unit
Conditions
Whole circuit
Circuit current 1 (Sampling mode)
ICC1
25
mA With no signal
Circuit current 2 (Muting mode)
ICC2
10
mA MUTEX = “L”
Control circuit
“H” level input voltage
VIH
2.3～12
V MUTEX, MS
“L” level input voltage
VIL
0～0.8
V MUTEX, MS
Audio circuit
Voltage gain
GV
28
dB PO = 1W
Maximum output power 1 (Note 6)
PO1
10
W THD+N = 10%, RL = 8Ω
Maximum output power 2 (Note 6)
PO2
17
W THD+N = 10%, RL = 4Ω
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)
Residual noise voltage
(Muting mode)
VNO
VNOM
80
µVrms Rg = 0Ω, BW = IHF-A
1
µVrms Rg = 0Ω, BW = IHF-A, MUTEX = “L”
Internal sampling clock frequency
FOSC
250
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.
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2010.05 - Rev.B