Yamaha YMF795, Руководство пользователя

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YMF795
-6-
■ Pin Description
No. Pin I/O Function
1 CLK_I Ish Clock input pin
2 <NC> -
Be sure to use in no-connection.
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
6 <NC> -
Be sure to use in no-connection.
The pin is nowhere connected in the chip.
7 AVSS - Analog ground
8 VREF A
Analog reference voltage pin
Connect a 0.1
µ F 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
14
AVDD -
Analog power supply (+3.3V)
Connect 0.1
µ F and 4.7 µ F capacitors between this pin and analog ground pin
15
16
SPVSS - Analog ground exclusively used for speaker
17 SPOUT1 AO Speaker output pin 1
18 SPOUT2 AO Speaker output pin 2
19 DVSS - Digital ground
20 DVDD -
Digital power supply (+3.3 V)
Connect 0.1
µ F and 4.7 µ F 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