YAMAHA YSS247-E Datasheet

YSS247

3

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DESCRIPTION OF PIN FUNCTION

DESCRIPTION OF PIN FUNCTIONDESCRIPTION OF PIN FUNCTION

DESCRIPTION OF PIN FUNCTION

1. WL (1 pin) Lch Wide input terminal
WR (4 pin) Rch Wide input terminal

The surround effect is provided when the FOL output is inputted to WL and the FORoutput to WR,
both after the level adjustment.

2. FOL (2 pin) Lch filter output terminal
FOR (5 pin) Rch filter output terminal

Connect a capacitance between FOL and FCL, and between FOR and FCR.

3. FCL (3 pin) Lch filter capacitance connection terminal
FCR (6 pin) Rch filter capacitance connection terminal

Refer to above paragraph.

4. CL (7 pin) Lch filter capacitance connection terminal
CR (8 pin) Rch filter capacitance connection terminal

Connect a capacitance between CL and GND, and between CR and GND.

5. AIL (9 pin) Lch analog input terminal
AIR (10 pin) Rch analog input terminal

To AIL, connect a capacitor and input the Lch signal.
To AIR, connect a capacitor and input the Rch signal.

6. SW (11 pin) Surround, tone control function on/off terminal

With 2 resistors (51kΩ, 100kΩ) connect one ends to this pin and connect the other ends to AVDD (ON)
or AVSS (OFF) surround (51kΩ) and tone control (100kΩ) function ON/OFF can be controlled.

7. AVDD (12 pin) Power supply terminal

Apply +3.0 to +5.5V voltage to the AVSS terminal.
Connect a capacitance between AVDD and AVSS.

8. AVSS (13 pin) Ground terminal

Analog signal reference voltage pin.

9. VREF (14 pin) Operating voltage

(AVDD-AVSS)/2 potential is genarated to provide the center voltage of the internal circuit.
Connect a capacitance between this pin and GND.

10. AOR (15 pin) Rch analog output terminal

AOL (18 pin) Lch analog output terminal

With a capacitance connected to AOR and AOL, analog signals are output.

11. TBR (16 pin), TAR (17 pin) Rch tone control input terminals

TBL (19 pin), TAL (20 pin) Lch tone control input terminals

The Rch tone control circuit is formed by using the CR circuit among AOR, TBR and TAR
The Lch tone control circuit is formed by using the CR circuit among AOL, TBL and TAL.
(Refer to the application circuit exsample)