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PDF SM7498HL Data sheet ( Hoja de datos )
| Número de pieza | SM7498HL | |
| Descripción | 3W STEREO AUDIO POWER AMPLIFIER | |
| Fabricantes | SamHop Microelectronics | |
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三合微科股份有限公司
SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
www.DataSheet4U.com
The information in this document is subject to change without notice.
c SAMHOP Microelectronics Corp. All Rights Reserved.
台北縣新店市民權路100號7樓
7F,No.100,Min-Chyuan Road, Hsintien, Taipei Hsien, Taiwan, R.O.C.
TEL: 886-2-2218-3978/2820 FAX: 886-2-2218-3320
Email : [email protected]
1 page  
SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
ELECTRICAL CHARACTERISTICS
(VDD =PVDD = 12V, Ta = 25oC unless otherwise noted)
Characteristic
Supply current
Shutdown current
Symbol
Test Conditions
IDD No load
ISD SHUTDOWN=0V, SE/BTL=0V
Mute current
Output offset voltage
(measured differentially)
High-level input current
(SE/BTL,SHUTDOWN,HP/LINE,MUTE)
Volume
Low-level input current
(SE/BTL,SHUTDOWN,VOLUME, HP/LINE,
MUTE)
Bypass voltage (Nominally VDD/2)
Imute Mute = 0V, SE/BTL=0V
VOO Gain=20dB, SE/BTL=0V
llH Vl = VDD = PVDD
llL VI= 0V
V(BYPASS) Measured at pin 6,No load (1)
Short to GND current limit
I Short VIN = 0V, RL = 900mΩ
Min. Typ. Max. Unit
25 40 mA
1 20 uA
2.0 mA
50 mV
1
uA
150
1 uA
6V
1.1 A
OPERATING CHARACTERISTICS
(VDD =PVDD =12V, RL =16Ω, Gain = 6dB, Ta = 25oC unless otherwise noted)
Characteristic
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Output Power (2)
High-level output voltage
Low-level output voltage
Supply current, max
Power into a 16 Ω load
Total harmonic distortion+noise
Maximum output power bandwidth
Noise output voltage (3)
Symbol
PO
VOH
VOL
IDD
THD + N
BOM
Test Conditions
THD+N=1%, f=1kHz,
RL=16Ω ,BTL mode , Gain=20dB
THD+N=10%, f=1kHz,
RL=16Ω ,BTL mode , Gain=20dB
THD+N=1%, f=1kHz,
RL=8Ω ,SE mode , Gain=14dB
THD+N=10%, f=1kHz,
RL=8Ω ,SE mode , Gain=14dB
Measured between output and VDD
Measured between output and GND
Output current PO=3W,
Stereo repetitive peak
PO =1W, f=1KHz, f=20Hz to 30kHz
BTL Mode
THD=5%
Gain = 0dB,C(BYP) =1.0 uf
Min.
Typ.
2.7
3.2
1.4
1.7
Max.
Unit
W
600 mV
400 mV
1.5 ARMS
0.1 %
> 20
kHz
36 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
5 Page 
SAMHOP Microelectronics Corp.
3W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
TOTAL HARMONIC DISTORTION +NOISE
vs.
FREQUENCY
VDD=12V
RL = 16 ohms
Po = 2W
BTL Mode
6 dB
20 dB
TOTAL HARMONIC DISTORTION +NOISE
vs.
FREQUENCY
VDD=12V
RL =8 ohms
Po = 1W
SE Mode
0 dB
14 dB
FREQUENCY (Hz)
Figure 7
CLOSED LOOP RESPONSE
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FREQUENCY (Hz)
Figure 8
CLOSED LOOP RESPONSE
VDD=12V
RL = 16 ohms
Gain = 20 dB
Po = 2W
BTL Mode
FREQUENCY (Hz)
Figure 9
VDD=12V
RL = 8 ohms
Gain = 14 dB
Po = 1 W
SE Mode
FREQUENCY (Hz)
Figure 10
Page 10
V.0.2 April 03,2007
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SM7498HL.PDF ] | |
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