SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
ELECTRICAL CHARACTERISTICS
(VDD =PVDD = 12V, Ta = 25oC unless otherwise noted)
Typ. Max. Unit
Characteristic
Supply current
Symbol
Test Conditions
Min.
IDD
No load
mA
uA
40
20
25
1
Shutdown current
Mute current
ISD
SHUTDOWN=0V, SE/BTL=0V
Mute = 0V, SE/BTL=0V
mA
Imute
2.0
Output offset voltage
(measured differentially)
Gain=20dB, SE/BTL=0V
50
1
mV
uA
uA
VOO
High-level input current
(SE/BTL,SHUTDOWN,HP/LINE,MUTE)
llH
Vl = VDD = PVDD
Volume
150
1
Low-level input current
(SE/BTL,SHUTDOWN,VOLUME, HP/LINE,
MUTE)
llL
VI= 0V
Bypass voltage (Nominally VDD/2)
Short to GND current limit
V(BYPASS) Measured at pin 6,No load (1)
VIN = 0V, RL = 900mΩ
6
V
A
I Short
1.1
OPERATING CHARACTERISTICS
(VDD =PVDD =12V, RL =16Ω, Gain = 6dB, Ta = 25oC unless otherwise noted)
Characteristic
Symbol
Test Conditions
Min.
Typ. Max. Unit
THD+N=1%, f=1kHz,
RL=16Ω ,BTL mode , Gain=20dB
THD+N=10%, f=1kHz,
2.7
3.2
RL=16Ω ,BTL mode , Gain=20dB
Output Power (2)
PO
W
THD+N=1%, f=1kHz,
RL=8Ω ,SE mode , Gain=14dB
1.4
THD+N=10%, f=1kHz,
RL=8Ω ,SE mode , Gain=14dB
1.7
High-level output voltage
Low-level output voltage
VOH
VOL
600
400
mV
mV
Measured between output and VDD
Measured between output and GND
Supply current, max
Power into a 16 Ω load
Output current PO=3W,
Stereo repetitive peak
PO =1W, f=1KHz, f=20Hz to 30kHz
BTL Mode
IDD
ARMS
%
1.5
THD + N
BOM
0.1
Total harmonic distortion+noise
Maximum output power bandwidth
Noise output voltage (3)
THD=5%
kHz
> 20
36
Gain = 0dB,C(BYP) =1.0 uf
μVRMS
(1) At 9.0V < VDD < 13.5V the DC bypass voltage is approximately VDD/2
(2) Output power is measured at the output terminals of the IC.
(3) Noise voltage is measured in a bandwidth of 22Hz to 22KHz.
Page 4
V.0.2 April 03,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
