SM7512 Ver la hoja de datos (PDF) - Samhop Mircroelectronics
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SM7512 Datasheet PDF : 16 Pages
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SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
ELECTRICAL CHARACTERISTICS (VDD =PVDD = 5.5V, Ta = 25oC unless otherwise noted)
Characteristic
Symbol
Condition
Min. Typ. Max. Unit
Output offset voltage (measured
differentially)
VOO VDD=5.5V,Gain=20dB, SE/BTL=0V -
- 60 mV
Power supply rejection ratio
PSRR VDD=PVDD=4.0V to 5.5V
-42 -70 -
dB
High-level input current
(SE/BTL,SHUTDOWN,VOLUME)
llH
VDD=PVDD=5.5V,
Vl=VDD=PVDD
-
-
1 uA
Low-level input
current(SE/BTL,SHUTDOWN,VOLUME)
llL
Supply current, no load
lDD
Supply current,max power into a 3Ω load lDD
Supply current,shutdown mode
lDD(SD)
VDD=PVDD=5.5V , Vl=0V
VDD=PVDD=5.5V,SE/BTL=0V,
SHUTDOWN=2V
VDD=PVDD=5.5V,SE/BTL=5.5V,
SHUTDOWN=2V
VDD=5V=PVDD,SE/BTL=0V,
SHUTDOWN=2V,RL=3Ω,
PO=2W,Stereo
SHUTDOWN=0.0V
-
-
1 uA
5.5 8.0 10
mA
3.0 5.0 6.0
- 1.5 - ARMS
-
1 20 uA
OPERATING CHARACTERISTICS
(VDD =PVDD = 5V, RL = 3Ω, Gain = 6dB, Ta = 25oC unless otherwise noted)
Characteristic
Symbol
Condition
Min. Typ. Max. Unit
Output Power (1)
f = 1KHz, RL =4Ω,
BTL Mode ,
Gain =20 dB
PO
f = 1KHz, RL =8Ω,
BTL Mode ,
Gain =20 dB
THD+N=1% -
1.9
-
THD+N=10% -
2.3
-
THD+N=1% -
1.4
-
W
THD+N=10% -
1.7
-
VDD=5.5V, f = 1KHz, THD+N =10%
-
3
-
Total harmonic distortion+noise
High-level output voltage
Low-level output voltage
Bypass voltage(Nominally VDD/2)(2)
Noise output voltage
THD+N
VOH
VOL
V(BYPASS)
PO =1W, RL=8Ω, f=20Hz to 20kHz
RL=8Ω,
Measured between output and VDD
RL=8Ω,
Measured between output and GND
Measured at pin 11,
No load, VDD=5.5V
f= 20 Hz to 20 kHz,
Gain=0 dB, C(BYP)= 1.0 uF
BTL
-
-
-
2.65
-
< 0.6 -
%
- 600 mV
- 400 mV
2.75 2.85 V
85
- μVRMS
(1) Output power is measured at the output terminals of the IC.
(2) At 4V < VDD < 5.5V the DC bypass voltage is approximately VDD/2
Page 4
V.1.4 Revised May 28,2007
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