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YDA137 Datasheet, PDF (2/20 Pages) YAMAHA CORPORATION – D- 2 STEREO 5W DIGITAL AUDIO POWER AMPLIFIER | |||
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â Terminal configuration
YDA137
VSS
1
/MUTE
2
/MONO
3
VDDL
4
VSSPL2
5
OUTPL
6
VDDPL
7
OUTML
8
VSSPL1
9
HPOL
10
VPL
11
INL
12
VREFL
13
VSSL
14
28
/SLEEP
27
/PROT
26
HP
25
VDDR
24
VSSPR2
23
OUTPR
22
VDDPR
21
OUTMR
20
VSSPR1
19
HPOR
18
VPR
17
INR
16
VREFR
15
VSSR
â Terminal functions
<28pin TSSOP Top View>
No. Name
I/O
Function
1 VSS
ï¼ Ground terminal for reference power supply
2 /MUTE
I Mute control terminal
3 /MONO
I Monaural control terminal
4 VDDL
ï¼ L-ch power supply terminal for control stage
5 VSSPL2
ï¼ L-ch ground terminal for output stage
6 OUTPL
O L-ch PWM signal output terminal for positive side
7 VDDPL
ï¼ L-ch power supply terminal for output stage
8 OUTML
O L-ch PWM signal output terminal for negative side
9 VSSPL1
ï¼ L-ch ground terminal for output stage
10 HPOL
OA L-ch headphone output terminal
11 VPL
OA L-ch first stage operational amplifier output terminal
12 INL
IA L-ch analog signal input terminal
13 VREFL
OA L-ch reference voltage output terminal
14 VSSL
ï¼ L-ch ground terminal for control stage
15 VSSR
ï¼ R-ch ground terminal for control stage
16 VREFR
OA R-ch reference voltage output terminal
17 INR
IA R-ch analog signal input terminal
18 VPR
OA R-ch first stage operational amplifier output terminal
19 HPOR
OA R-ch headphone output terminal
20 VSSPR1
ï¼ R-ch ground terminal for output stage
21 OUTMR
O R-ch PWM signal output terminal for negative side
22 VDDPR
ï¼ R-ch power supply terminal for output stage
23 OUTPR
O R-ch PWM signal output terminal for positive side
24 VSSPR2
ï¼ R-ch ground terminal for output stage
25 VDDR
ï¼ R-ch power supply terminal for control stage
26 HP
I Headphone control terminal
27 /PROT
O Protection detection terminal
28 /SLEEP
I Sleep control terminal
ï¼Noteï¼ I: Digital input terminal, O: Digital output terminal, IA: Analog input terminal, OA: Analog output terminal
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