SM6453AB Datasheet, PDF (7/12 Pages) Nippon Precision Circuits Inc – 3-wire Serial Data Volume Control for Headphone Amplifiers IC

SM6453AB
AC Analog Characteristics
V_DD1 = V_DD2 = 2.0V, analog input amplitude = 0.022Vrms, input frequency = 1kHz, Ta = 25°C, Measurement
circuit, unless otherwise noted.
Analog input characteristics (LIN1, RIN1, LIN2, RIN2)
Parameter
Symbol
Condition
Reference input amplitude
Input resistance
Input clipping voltage
V_AI
ATT = 0dB
R_IN
V_CLP ATT = 0dB
Analog output characteristics (LOUT, ROUT)
Rating
Unit
min
typ
max
0.022
Vrms
45
51
57
kΩ
0.14
0.168
Vrms
Parameter
Symbol
Condition
Rating
min
typ
max
Residual noise voltage
Total harmonic distortion + noise
Maximum output voltage
Bass boost response¹
AGC detection level
Gain control range
Step size
V_NS
THD + N
P_OMAX
B_BST
ATT = 0dB
P_O = 0.5mW + 0.5mW
ATT = 0dB, THD = 10%
V_AGC
R_CNT
STEP
20
30
0.3
0.8
15
20
+ 13.5
0.55+
0.5V_DD1
− 68
12
0.8
1.0
1.8
Attenuation error (1kHz to 20kHz)
ERR1
ERR2
@ 12dB to − 48dB
@ − 49dB to − 68dB
TBD
0.2
TBD
TBD
0.5
TBD
Absolute attenuation (1kHz)
Mute factor (1kHz)
Channel crosstalk²
Channel crosstalk³
Ripple rejection
AT₀
AT₂
AT₄
AT₆
AT₈
MUTE
CT₁
CT₂
PSRR
ATT = 0dB
ATT = − 20dB
ATT = − 40dB
ATT = − 60dB
ATT = − 80dB
ATT = MUTE, MUTEN = LOW
Supply ripple on AVDD1, AVDD2, AVDD3
− 84.0
− 84.0
− 24.0
69.0
+ 12.0
− 8.0
− 28.0
− 48.1
− 68.2
− 90.0
− 90.0
− 40.0
75.0
1. Bass boost control bit D9 = HIGH, 55Hz, V_O = – 30dBv
2. ATT = 0dB, leakage output on one channel with analog input on the other channel only.
3. Bass boost control bit D9 = HIGH, ATT = 0dB, leakage output on one channel with analog input on the other channel only.
Analog output characteristics (BEEPLO, BEEPRO)
Unit
µVrms
%
mW
dB
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Parameter
BEEP output current
BEEP output voltage
Symbol
Condition
I_BO
400Hz rectangular wave,
V_BO
input level = 1.5V to V_DD2
Rating
Unit
min
typ
max
0.3
0.36
0.4
mA
− 56
− 51.3
− 46
dBv
NIPPON PRECISION CIRCUITS—7