YAC526 Datasheet, PDF (2/14 Pages) YAMAHA CORPORATION – Electric Variable Resistance 3

■Terminal configration
ZCEN1
1
ZCEN2
2
CSN
3
SDATAI
4
DGND
5
REF
6
DVSS
7
SCLK
8
SDATAO
9
TE1
10
TE2
11
TE3
12
YAC526
24 IN1
23 REF1A
22 REF1B
21
OUT1
20
AVDD
19
AVSS
18
AVSS
17 AVDD
16
OUT2
15 REF2B
14 REF2A
13
IN2
■Terminal function
ʻ24 pin SSOP Top Viewʼ
No. Name I/O
Function
1 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.
2 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.
3 CSN
I Chip select input
4 SDATAI I Serial data input
5 DGND − Digital ground
6 REF
O Reference voltage output for digital For attaining stabilization, connect this terminal to
DVSS 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.
7 DVSS − Minus power supply for digital (-6.0V Typ.)
8 SCLK
I Serial clock input
9 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.
10 TE1
I Test terminal (Pull-down) Non connection or connect to DGND terminal.
11 TE2
I Test terminal (Pull-down) Non connection or connect to DGND terminal.
12 TE3
I Test terminal (Pull-down) Non connection or connect to DGND terminal.
13 IN2
AI ch2 analog input The output impedance of input signal source is used less than 10kΩ.
When avoid the use of this terminal, connect to ground.
14 REF2A AI ch2 analog reference voltage input A Connect to ground directly.
15 REF2B AI ch2 analog reference voltage input B Connect to ground directly.
16 OUT2 AO ch2 analog output
17 AVDD − Plus power supply for analog (+6.0V Typ.)
18 AVSS − Minus power supply for analog (-6.0V Typ.)
19 AVSS − Minus power supply for analog (-6.0V Typ.)
20 AVDD − Plus power supply for analog (+6.0V Typ.)
21 OUT1 AO ch1 analog output
22 REF1B AI ch1 analog reference voltage input B Connect to ground directly.
23 REF1A AI ch1 analog reference voltage input A Connect to ground directly.
24 IN1
AI ch1 analog input The output impedance of input signal source is used less than 10kΩ.
When avoid the use of this terminal, connect to ground.
Note A: analog terminal, OD: Open drain output terminal, "L" level means VIL, "H" level means VIH.
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