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RT5509WSC Datasheet(PDF) 6 Page - Richtek Technology Corporation

Part # RT5509WSC
Description  Speaker Amplifier with Speaker Protection
PDF  58 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT5509WSC Datasheet(HTML) 6 Page - Richtek Technology Corporation

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RT5509
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation
www.richtek.com
DS5509-00
August
2017
6
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
DAC to Stereo Speaker Amplifier
Signal to Noise Ratio
SNR
PVDD = 9.5V, THD+N < 1%, Gain =
12dB, A-Weighting
92
100
108
dB
Noise level
Vn
Gain = 0dB, A-Weighting
15
20
25
V
Gain = 12dB, A-Weighting
35
40
45
Gain = 18dB, A-Weighting
55
60
65
Maximum Output Power
Po
1kHz, PVDD = 3.6V, 8
 load + 22H,
THD + N = 1%
0.6
0.65
0.7
W
1kHz, PVDD = 9.5V, 8
 load + 22H,
THD + N = 1%
4.2
4.3
4.4
THD+N
1kHz, Po = 350mW, 8
 load + 22H
90
75
50
dB
PSRR
217Hz ripple = 200mVpp
85
75
65
dB
Quiescent Current (VBAT)
IQ_VBAT
Normal operation, DSP, speaker
protection bypassed
1
3
5
mA
Quiescent Current (DVDD)
IQ_DVDD
Normal operation, DSP, speaker
protection bypassed
6
12
18
mA
Normal operation, DSP, speaker
protection activated
12
18
24
Output Power Efficiency
η
PO = 2.5W, including DC to DC
converter, 100Hz audio signal
70
76
80
%
I
2C Interface Electrical Characteristics
(Note 5)
SDA, SCL Input Threshold
VIH
0.7 x
DVDD
--
--
V
VIL
--
--
0.3 x
DVDD
Pull-Down Current
IFO2
--
2
--
A
Digital Output Low (SDA)
VOL
IPULLUP = 3mA
--
--
0.4
V
Clock Operating Frequency
fSCL
--
--
400
kHz
Bus Free Time Between Stop
and Start Condition
tBUF
1.3
--
--
s
Hold Time After (Repeated)
Start Condition
tHD,STA
0.6
--
--
s
Repeated Start Condition
Setup Time
tSU,STA
0.6
--
--
s
Stop Condition Time
tSU,STD
0.6
--
--
s
Data Hold Time
tHD,DAT
(OUT)
225
--
--
ns
Input Data Hold Time
tHD,DAT
(IN)
0
--
900
ns
Data Setup Time
tSU,DAT
100
--
--
ns
Clock Low Period
tLOW
1.3
--
--
s
Clock High Period
tHIGH
0.6
--
--
s



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