YSS943 YAMAHA [YAMAHA CORPORATION], YSS943 Datasheet - Page 6

• Manufacturer Part Number: YSS943
• Description: ADAMB Advanced Digital Audio Multi channel decode processor
• Manufacturer: YAMAHA [YAMAHA CORPORATION]

6
Initial clear
Clock
Microprocessor
interface
Audio interface
Type
105
106
117
118
123
129
130
139
140
141
131
126
125
124
122
No.
Pin
61
62
69
77
78
86
87
93
94
18
19
32
31
1
2
3
Pin Name
AHVSSG
SDIMCK
SDIBCK
AHVSS
AVSSR
MISCK
nMICS
DVSS
MISO
MISI
nIC
XO
XI
Note 1)
I/O
Ot
Is
O
Is
Is
Is
Is
I
I
Clock input pin.
This is the microprocessor interface’s chip select input pin.
This is the microprocessor interface’s clock input pin.
This is the microprocessor interface’s address read/write control and
This is the microprocessor interface’s data output pin.
This is the bit clock I/O pin for the audio interface’s input side.
Ground pin 2 for PLL analog block.
Be sure to insert a 0.1
pins.
Ground pin 3 for PLL analog block.
Be sure to insert a 0.1
AHVSSG pins.
Ground pin for PLL digital block.
Be sure to insert a 0.1
pins.
Ground pin 1 for PLL analog block.
Be sure to insert a 0.1
pins.
Hardware reset input pin
The LSI is initialized when this pin is at low level.
Connect this pin as shown in the circuit example Note 2) of the
12.288 MHz crystal oscillator.
If not connected to a crystal oscillator, input a 12.288 MHz clock to
this pin.
This is the output pin for the crystal oscillator.
Connect this pin as shown in the circuit example Note 2).
If not connected to a crystal oscillator and inputting directly to the XI
pin, do not connect anything to this pin. Do not use this pin for any
purpose other than clock oscillation.
Input to the MISCK and MISI pins becomes valid when this pin is at
low level.
data input pin.
Connect a pull-up resistor.
This is the master clock input pin for the audio interface’s input side.
The master clock is input from DIR, ADC, etc.
The highest clock frequency that can be input is 25 MHz.
(The clock rate is 512 fs when the input sampling frequency is 48 kHz
or less, 256 fs when the frequency is 96 kHz, and 128 fs when the
frequency is up to 192 kHz.)
YSS944/943/940
µ
µ
µ
µ
F capacitor between the AHVDD and AHVSS
F capacitor between the AHVDDG and
F capacitor between the DVDD and DVSS
F capacitor between the AVDDR and AVSSR
Function