SM6800A Datasheet, PDF (4/12 Pages) Nippon Precision Circuits Inc – Class-D Mono Amplifier for Mobile Telephones

SM6800A
AC Analog Characteristics
VDD1 = VDD2 = VDD3 = 3.6V, VSS1 = VSS2 = VSS3 = 0V, 0.708Vrms analog input amplitude, 1kHz input
signal frequency, Ta = 25°C, "Measurement block diagram”, "Measurement conditions”, "Measurement cir-
cuit”, TM1 = TM2 = LOW, PDWN = MUTEN = HIGH, unless otherwise noted
Analog input characteristics (IN)
Parameter
Reference input amplitude 1
Reference input amplitude 2
Input resistance
Input clipping voltage
Symbol
Conditions
V_AI1
P_O = 0.2W
V_AI2
P_O = 0.05W
R _IN
V_CLP P_O = 0.5W
Rating
Unit
min
typ
max
–
0.708
–
Vrms
–
0.178
–
Vrms
48
60
72
kΩ
0.7
1
1.3
Vrms
Analog output characteristics (OUTP, OUTN)
Parameter
Voltage gain 1
Voltage gain 2
Residual noise voltage
Total harmonic distortion + noise
Maximum output power
Mute-mode output voltage
HIGH-level output voltage
LOW-level output voltage
Efficiency
Symbol
Conditions
A₁
TM1 = TM2 = LOW,
reference input amplitude 1
A₂
TM1 = HIGH, TM2 = LOW,
reference input amplitude 2
V _NS
TM1 = TM2 = LOW,
input and VREF1 connected by 600Ω
THD + N
P_OMAX
V_MUTE
P_O = 0.2W, reference input amplitude 1
Output power when THD = 10%
Output power when MUTEN = LOW
V_OH
V_OL
E_EF Maximum output power conditions
min
2.5
10.0
–
–
0.6
– 90.0
V_DDP
– 0.1
0
80
Rating
typ
4.5
12.0
68
0.4
0.7
– 110
V_DDP
– 0.02
0.02
83
max
6.5
14.0
90
1.0
0.8
–
V_DDP
0.1
–
Unit
dB
dB
µVrms
%
W
dBV
V
V
%
Reference voltage characteristics (VREF1)
Parameter
Reference output voltage 1
Symbol
V_REF1
min
0.45V_DDS
Rating
typ
0.5V_DDS
Unit
max
0.55V_DDS
V
NIPPON PRECISION CIRCUITS INC.—4