YAC523 Datasheet, PDF (3/16 Pages) YAMAHA CORPORATION – Electric Variable Resistance 2

YAC523
■Terminal function
No. Name I/O
Function
1 AVSS − Minus power supply for analog (-6.0V Typ.)
2 AVDD − Plus power supply for analog (+6.0V Typ.)
3 IN1
4 IN2
5 IN3
6 IN4
AI ch1 analog input
AI ch2 analog input
AI ch3 analog input
AI ch4 analog input
When avoid the use of this terminal, connect to ground.
And please use the output impedance of the source of input
signal less than 2.2kΩ.
7 IN5
AI ch5 analog input
8 IN6
AI ch6 analog input
9 IN7
AI ch7 analog input
10 AVDD − Plus power supply for analog (+6.0V Typ.)
11 AVSS − Minus power supply for analog (-6.0V Typ.)
12 REF7B AI ch7 analog reference voltage input 7B Connect to ground directly.
13 REF7A AI ch7 analog reference voltage input 7A Connect to ground through 33μF.
14 REF6B AI ch6 analog reference voltage input 6B Connect to ground directly.
15 REF6A AI ch6 analog reference voltage input 6A Connect to ground through 33μF.
16 REF5B AI ch5 analog reference voltage input 5B Connect to ground directly.
17 REF5A AI ch5 analog reference voltage input 5A Connect to ground through 33μF.
18 REF4A AI ch4 analog reference voltage input 4A Connect to ground through 33μF.
19 REF4B AI ch4 analog reference voltage input 4B Connect to ground directly.
20 REF3A AI ch3 analog reference voltage input 3A Connect to ground through 33μF.
21 REF3B AI ch3 analog reference voltage input 3B Connect to ground directly.
22 REF2A AI ch2 analog reference voltage input 2A Connect to ground through 33μF.
23 REF2B AI ch2 analog reference voltage input 2B Connect to ground directly.
24 REF1A AI ch1 analog reference voltage input 1A Connect to ground through 33μF.
25 REF1B AI ch1 analog reference voltage input 1B Connect to ground directly.
26 NC
− Non connection or connect to ground.
27 NC
− Non connection or connect to ground.
28 OUT7 AO ch7 analog output
29 OUT6 AO ch6 analog output
30 OUT5 AO ch5 analog output
31 OUT4 AO ch4 analog output
32 OUT3 AO ch3 analog output
33 OUT2 AO ch2 analog output
34 OUT1 AO ch1 analog output
35 NC
− Non connection or connect to ground.
36 NC
− Non connection or connect to ground.
37 AVSS − Minus power supply for analog (-6.0V Typ.)
38 ZCEN1
I Zero-cross control input 1. Select one from four types of zero-cross modes including non-zero-
cross mode. When changing zero-cross modes during operation, set the system so that it
changes at 1 second or more after the rise of CSN signal.
39 ZCEN2
I Zero-cross control input 2. Select one from four types of zero-cross modes including non-zero-
cross mode. When changing zero-cross modes during operation, set the system so that it
changes at 1 second or more after the rise of CSN signal.
40 CSN
I Chip select input
41 SDATAI I Serial data input
42 SCLK
I Serial clock input
43 SDATAO OD Serial data output
Serial data are outputted from this terminal when CSN pin is "L" level. This terminal becomes
high-impedance state when CSN pin is "H". Since it is an open drain output pin, pull it up
through a resistor to the power supply voltage (to be AVDD or less) of a device to be
connected. Do not allow output current of 1.5mA or over.
44 TE2
I Test terminal Non connection or connect to DGND terminal.
45 TE1
I Test terminal Non connection or connect to DGND terminal.
46 DGND − Digital ground
47 REF
O Reference voltage output for digital For attaining stabilization, connect this terminal to
AVSS terminal through a capacitance of 10µF or higher (CREF).
And please do not use this terminal output for the drive purpose of an external circuit.
48 AVSS − Minus power supply for analog (-6.0V Typ.)
Note A: analog terminal, OD: Open drain output terminal, "L" level means VIL, "H" level means VIH.
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