YMF795 Datasheet, PDF (6/45 Pages) YAMAHA CORPORATION – APL-2 Automobile sound Player-2

■Pin Description
YMF795
No.
Pin
I/O
Function
1
CLK_I
Ish Clock input pin
Be sure to use in no-connection.
2
<NC>
-
The pin is nowhere connected in the chip.
3
SDIN
I Serial I/F data input
4
SYNC
I Serial I/F synchronous signal input
5
SCLK
Ish Serial I/F bit clock input
Be sure to use in no-connection.
6
<NC>
-
The pin is nowhere connected in the chip.
7
AVSS
- Analog ground
Analog reference voltage pin
8
VREF
A
Connect a 0.1 µF capacitor between this pin and analog ground pin.
9
HPOUT
AO Analog output pin for earphone
10
EQ1
AO Equalizer pin 1
11
EQ2
AI Equalizer pin 2
12
EQ3
AO Equalizer pin 3
13
Analog power supply (+3.3V)
AVDD
-
14
Connect 0.1 µF and 4.7 µF capacitors between this pin and analog ground pin
15
SPVSS
- Analog ground exclusively used for speaker
16
17
SPOUT1
AO Speaker output pin 1
18
SPOUT2
AO Speaker output pin 2
19
DVSS
- Digital ground
Digital power supply (+3.3 V)
20
DVDD
-
Connect 0.1 µF and 4.7 µF capacitors between this pin and digital ground pin.
21
/IRQ
O Interrupt signal output
22
/TESTI
I LSI test input pin (Be sure to connect to DVDD.)
23
/RST
I Hardware reset pin
24
TESTO
O LSI TEST output pin (Be sure to use in no-connection)
Note : Ish = Schmitt input pin AI = Analog input pin A0 = Analog output pin
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