YMU757B Datasheet, PDF (6/43 Pages) YAMAHA CORPORATION – MA-1C

YMU757B
Pin description
No.
Pin
I/O
Function
1
SYNC
I Serial I/F synchronous signal input
2
SCLK
Ish Serial I/F bit clock input
3
AVSS
- Analog ground
Analog reference voltage terminal Connect 0.1µF capacitor between
4
VREF
A
this terminal and the analog ground terminal.
5
HPOUT
AO Analog output terminal for ear phone
6
EQ1
AO Equalizer terminal 1
7
EQ2
AI Equalizer terminal 2
8
EQ3
AO Equalizer terminal 3
Analog power supply (+3.0V)
9
AVDD
- Connect 0.1µF and 4.7µF capacitors between this terminal and the
analog ground terminal
10
SPVSS
- Analog ground exclusively used for speaker
11
SPOUT1
AO Speaker output terminal 1
12
SPOUT2
AO Speaker output terminal 2
13
DVSS
- Digital ground
Digital power supply (+3.0V)
14
DVDD
- Connect 0.1µF and 4.7µF capacitors between this terminal and
the digital ground terminal.
15
/IRQ
O Interrupt signal output
16
/TESTI
I
LSI test input terminal (Always connect with DVDD.)
17
/RST
I Hardware reset terminal
18
TESTO
O LSI TEST output terminal (disconnected)
19
CLK_I
Ish Clock input terminal
20
SDIN
I Serial I/F data input
Note : Ish = Schmitt input terminal AI = Analog input terminal A0 = Analog output terminal
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