APA2607 Datasheet, PDF (1/26 Pages) Anpec Electronics Coropration – 6W Stereo Class-D Audio Power Amplifier

APA2607
6W Stereo Class-D Audio Power Amplifier
Features
General Description
• Operating Voltage: 8.0V-16.5V
• High Efficiency 90% at P_O = 6W, 8Ω Speaker,
V = 12V
DD
• Low Shutdown Current
- I_DD=5µA at V_DD=16.5V
• Power Limit Function
• SwitchableNon-Clip Function/DRC (Dynamic Range
Control) Function
• Build-in Oscillator
• Spread Clock Function
• External Synchronization Function
• Master/Slaver Synchronization Function
• DC Detection Function
• Stereo/Monaural Function
• Shutdown and Mute Function
• Thermal and Over-Current Protections with Auto-
Recovery
• Space Saving Package TQFN5x5-32
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
• LCD TVs
Simplified Application Circuit
Left
Channel
Input
Right
Channel
Input
LINP
LOUTP
LINN
LOUTN
APA2607
RINN
ROUTN
RINP
ROUTP
Left
Channel
Speaker
Right
Channel
Speaker
The APA2607 is a stereo, high efficiency, Class-D audio
amplifier available in a TQFN5x5-32 package.
The filter-free Class-D architecture eliminates the exter-
nal low pass filters and saves the PCB space and BOM
costs. The APA2607 also has spread clock function that
reduces the high frequency radiation and low the EMI
noise. The Zero-crossing-change function changes the
gain when both output (V_OUTP and V_OUTN) crossing together
can minimum the pop noise. The power limit function
can protect the speaker when output signal excesses
the speaker limit rating. The non-clip and DRC functions
eliminate the distortion at large input signal and can fit
the high dynamic input signal to a small dynamic speaker.
The operating voltage is from 8V to 16.5V. The APA2607
is capable of driving 6W at 12V into 8Ω speaker and pro-
vides thermal and over-current protections. The APA2607
also can detect the DC that prevents the speaker voice
coil being destroyed.
Efficiency vs. Output Power (8Ω)
100
90
80
70
60
50
40
30
V_DD=12V
20
R_L=8Ω+33µH
f_in=1kHz
10
AUX-0025
AES-17(20kHz)
0
0 1 2 3 4 5 6 7 8 9 10
Output Power (W)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.4 - Sep., 2011
www.anpec.com.tw