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STA538Q Datasheet

  • STA538Q

  • 2 x 1.3 W class-D amplifier with analog or digital input 2.0...

  • 511.92KB

  • 59頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STA538
2 x 1.3 W class-D amplifier with analog or digital input
2.0 multichannel digital audio processor with FFX
Features
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Up to 96 dB dynamic range
Sample rates from 8 kHz to 192 kHz
FFX
TM
class-D driver
1.5 V to 1.95 V digital power supply
1.5 V to 3.6 V analog power supply
18-bit audio processing and class-D FFX
TM
modulator
Digital volume control:
鈥?+36 dB to 105 dB in 0.5 dB steps
鈥?Software volume update
Individual channel and master gain/attenuation
Automatic invalid input detect mute
2-channel I
2
S input/output data interface
Digitally controlled POP-free operation
Input and output channel mapping
250 m鈩?output CMOS R
dson
> 90% efficiency
2 x 1.3 W (10% THD) on 4
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at 3.6 V
2 x 0.7 W (10% THD) on 8
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at 3.3 V
Stereo headphone plus mono speaker
application:
鈥?50 mW stereo into 32
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headphone,
1.2 W mono into 4
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speaker at 3.3 V
鈥?100 mW stereo into 16
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headphone,
1.2 W mono into 4
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speaker at 3.3 V
VFQFPN52
TFBGA48
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Order codes
Part number
STA538B
STA538Q
Package
TFBGA48 (tube)
VFQFPN52 (tube)
January 2007
Rev 1
1/59
www.st.com
1

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